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[media] vivid: fix format comments
[deliverable/linux.git] / drivers / media / platform / vivid / vivid-vid-common.c
CommitLineData
ef834f78
HV		 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, 25000000, 600000000,
37 V4L2_DV_BT_STD_CEA861 | V4L2_DV_BT_STD_DMT,
38 V4L2_DV_BT_CAP_PROGRESSIVE | V4L2_DV_BT_CAP_INTERLACED)
39};
40
41/* ------------------------------------------------------------------
42 Basic structures
43 ------------------------------------------------------------------*/
44
45struct vivid_fmt vivid_formats[] = {
46 {
47 .name = "4:2:2, packed, YUYV",
48 .fourcc = V4L2_PIX_FMT_YUYV,
96c76efa
HV		 49 .vdownsampling = { 1 },
50 .bit_depth = { 16 },
ef834f78
HV		 51 .is_yuv = true,
52 .planes = 1,
96c76efa 53 .buffers = 1,
b521c375 54 .data_offset = { PLANE0_DATA_OFFSET },
ef834f78
HV		 55 },
56 {
57 .name = "4:2:2, packed, UYVY",
58 .fourcc = V4L2_PIX_FMT_UYVY,
96c76efa
HV		 59 .vdownsampling = { 1 },
60 .bit_depth = { 16 },
ef834f78
HV		 61 .is_yuv = true,
62 .planes = 1,
96c76efa 63 .buffers = 1,
ef834f78
HV		 64 },
65 {
66 .name = "4:2:2, packed, YVYU",
67 .fourcc = V4L2_PIX_FMT_YVYU,
96c76efa
HV		 68 .vdownsampling = { 1 },
69 .bit_depth = { 16 },
ef834f78
HV		 70 .is_yuv = true,
71 .planes = 1,
96c76efa 72 .buffers = 1,
ef834f78
HV		 73 },
74 {
75 .name = "4:2:2, packed, VYUY",
76 .fourcc = V4L2_PIX_FMT_VYUY,
96c76efa
HV		 77 .vdownsampling = { 1 },
78 .bit_depth = { 16 },
ef834f78
HV		 79 .is_yuv = true,
80 .planes = 1,
96c76efa 81 .buffers = 1,
ef834f78 82 },
b521c375
HV		 83 {
84 .name = "YUV 4:2:2 triplanar",
85 .fourcc = V4L2_PIX_FMT_YUV422P,
86 .vdownsampling = { 1, 1, 1 },
87 .bit_depth = { 8, 4, 4 },
88 .is_yuv = true,
89 .planes = 3,
90 .buffers = 1,
91 },
92 {
93 .name = "YUV 4:2:0 triplanar",
94 .fourcc = V4L2_PIX_FMT_YUV420,
95 .vdownsampling = { 1, 2, 2 },
96 .bit_depth = { 8, 4, 4 },
97 .is_yuv = true,
98 .planes = 3,
99 .buffers = 1,
100 },
101 {
102 .name = "YVU 4:2:0 triplanar",
103 .fourcc = V4L2_PIX_FMT_YVU420,
104 .vdownsampling = { 1, 2, 2 },
105 .bit_depth = { 8, 4, 4 },
106 .is_yuv = true,
107 .planes = 3,
108 .buffers = 1,
109 },
110 {
111 .name = "YUV 4:2:0 biplanar",
112 .fourcc = V4L2_PIX_FMT_NV12,
113 .vdownsampling = { 1, 2 },
114 .bit_depth = { 8, 8 },
115 .is_yuv = true,
116 .planes = 2,
117 .buffers = 1,
118 },
119 {
120 .name = "YVU 4:2:0 biplanar",
121 .fourcc = V4L2_PIX_FMT_NV21,
122 .vdownsampling = { 1, 2 },
123 .bit_depth = { 8, 8 },
124 .is_yuv = true,
125 .planes = 2,
126 .buffers = 1,
127 },
128 {
129 .name = "YUV 4:2:2 biplanar",
130 .fourcc = V4L2_PIX_FMT_NV16,
131 .vdownsampling = { 1, 1 },
132 .bit_depth = { 8, 8 },
133 .is_yuv = true,
134 .planes = 2,
135 .buffers = 1,
136 },
137 {
138 .name = "YVU 4:2:2 biplanar",
139 .fourcc = V4L2_PIX_FMT_NV61,
140 .vdownsampling = { 1, 1 },
141 .bit_depth = { 8, 8 },
142 .is_yuv = true,
143 .planes = 2,
144 .buffers = 1,
145 },
146 {
147 .name = "Monochrome",
148 .fourcc = V4L2_PIX_FMT_GREY,
149 .vdownsampling = { 1 },
150 .bit_depth = { 8 },
151 .is_yuv = true,
152 .planes = 1,
153 .buffers = 1,
154 },
ef834f78
HV		 155 {
156 .name = "RGB565 (LE)",
157 .fourcc = V4L2_PIX_FMT_RGB565, /* gggbbbbb rrrrrggg */
96c76efa
HV		 158 .vdownsampling = { 1 },
159 .bit_depth = { 16 },
ef834f78 160 .planes = 1,
96c76efa 161 .buffers = 1,
ef834f78
HV		 162 .can_do_overlay = true,
163 },
164 {
165 .name = "RGB565 (BE)",
166 .fourcc = V4L2_PIX_FMT_RGB565X, /* rrrrrggg gggbbbbb */
96c76efa
HV		 167 .vdownsampling = { 1 },
168 .bit_depth = { 16 },
ef834f78 169 .planes = 1,
96c76efa 170 .buffers = 1,
ef834f78
HV		 171 .can_do_overlay = true,
172 },
8aca230b
HV		 173 {
174 .name = "RGB444",
175 .fourcc = V4L2_PIX_FMT_RGB444, /* xxxxrrrr ggggbbbb */
176 .vdownsampling = { 1 },
177 .bit_depth = { 16 },
178 .planes = 1,
179 .buffers = 1,
180 },
181 {
182 .name = "XRGB444",
183 .fourcc = V4L2_PIX_FMT_XRGB444, /* xxxxrrrr ggggbbbb */
184 .vdownsampling = { 1 },
185 .bit_depth = { 16 },
186 .planes = 1,
187 .buffers = 1,
188 },
189 {
190 .name = "ARGB444",
191 .fourcc = V4L2_PIX_FMT_ARGB444, /* aaaarrrr ggggbbbb */
192 .vdownsampling = { 1 },
193 .bit_depth = { 16 },
194 .planes = 1,
195 .buffers = 1,
196 .alpha_mask = 0x00f0,
197 },
ef834f78
HV		 198 {
199 .name = "RGB555 (LE)",
9e1b73cf 200 .fourcc = V4L2_PIX_FMT_RGB555, /* gggbbbbb xrrrrrgg */
96c76efa
HV		 201 .vdownsampling = { 1 },
202 .bit_depth = { 16 },
ef834f78 203 .planes = 1,
96c76efa 204 .buffers = 1,
ef834f78
HV		 205 .can_do_overlay = true,
206 },
207 {
208 .name = "XRGB555 (LE)",
9e1b73cf 209 .fourcc = V4L2_PIX_FMT_XRGB555, /* gggbbbbb xrrrrrgg */
96c76efa
HV		 210 .vdownsampling = { 1 },
211 .bit_depth = { 16 },
ef834f78 212 .planes = 1,
96c76efa 213 .buffers = 1,
ef834f78
HV		 214 .can_do_overlay = true,
215 },
216 {
217 .name = "ARGB555 (LE)",
218 .fourcc = V4L2_PIX_FMT_ARGB555, /* gggbbbbb arrrrrgg */
96c76efa
HV		 219 .vdownsampling = { 1 },
220 .bit_depth = { 16 },
ef834f78 221 .planes = 1,
96c76efa 222 .buffers = 1,
ef834f78
HV		 223 .can_do_overlay = true,
224 .alpha_mask = 0x8000,
225 },
226 {
227 .name = "RGB555 (BE)",
9e1b73cf 228 .fourcc = V4L2_PIX_FMT_RGB555X, /* xrrrrrgg gggbbbbb */
96c76efa
HV		 229 .vdownsampling = { 1 },
230 .bit_depth = { 16 },
ef834f78 231 .planes = 1,
96c76efa 232 .buffers = 1,
ef834f78
HV		 233 .can_do_overlay = true,
234 },
235 {
236 .name = "RGB24 (LE)",
237 .fourcc = V4L2_PIX_FMT_RGB24, /* rgb */
96c76efa
HV		 238 .vdownsampling = { 1 },
239 .bit_depth = { 24 },
ef834f78 240 .planes = 1,
96c76efa 241 .buffers = 1,
ef834f78
HV		 242 },
243 {
244 .name = "RGB24 (BE)",
245 .fourcc = V4L2_PIX_FMT_BGR24, /* bgr */
96c76efa
HV		 246 .vdownsampling = { 1 },
247 .bit_depth = { 24 },
ef834f78 248 .planes = 1,
96c76efa 249 .buffers = 1,
ef834f78
HV		 250 },
251 {
252 .name = "RGB32 (LE)",
9e1b73cf 253 .fourcc = V4L2_PIX_FMT_RGB32, /* xrgb */
96c76efa
HV		 254 .vdownsampling = { 1 },
255 .bit_depth = { 32 },
ef834f78 256 .planes = 1,
96c76efa 257 .buffers = 1,
ef834f78
HV		 258 },
259 {
260 .name = "RGB32 (BE)",
9e1b73cf 261 .fourcc = V4L2_PIX_FMT_BGR32, /* bgrx */
96c76efa
HV		 262 .vdownsampling = { 1 },
263 .bit_depth = { 32 },
ef834f78 264 .planes = 1,
96c76efa 265 .buffers = 1,
ef834f78
HV		 266 },
267 {
268 .name = "XRGB32 (LE)",
9e1b73cf 269 .fourcc = V4L2_PIX_FMT_XRGB32, /* xrgb */
96c76efa
HV		 270 .vdownsampling = { 1 },
271 .bit_depth = { 32 },
ef834f78 272 .planes = 1,
96c76efa 273 .buffers = 1,
ef834f78
HV		 274 },
275 {
276 .name = "XRGB32 (BE)",
9e1b73cf 277 .fourcc = V4L2_PIX_FMT_XBGR32, /* bgrx */
96c76efa
HV		 278 .vdownsampling = { 1 },
279 .bit_depth = { 32 },
ef834f78 280 .planes = 1,
96c76efa 281 .buffers = 1,
ef834f78
HV		 282 },
283 {
284 .name = "ARGB32 (LE)",
285 .fourcc = V4L2_PIX_FMT_ARGB32, /* argb */
96c76efa
HV		 286 .vdownsampling = { 1 },
287 .bit_depth = { 32 },
ef834f78 288 .planes = 1,
96c76efa 289 .buffers = 1,
ef834f78
HV		 290 .alpha_mask = 0x000000ff,
291 },
292 {
293 .name = "ARGB32 (BE)",
294 .fourcc = V4L2_PIX_FMT_ABGR32, /* bgra */
96c76efa
HV		 295 .vdownsampling = { 1 },
296 .bit_depth = { 32 },
ef834f78 297 .planes = 1,
96c76efa 298 .buffers = 1,
ef834f78
HV		 299 .alpha_mask = 0xff000000,
300 },
301 {
96c76efa 302 .name = "4:2:2, biplanar, YUV",
ef834f78 303 .fourcc = V4L2_PIX_FMT_NV16M,
96c76efa
HV		 304 .vdownsampling = { 1, 1 },
305 .bit_depth = { 8, 8 },
ef834f78
HV		 306 .is_yuv = true,
307 .planes = 2,
96c76efa 308 .buffers = 2,
ef834f78
HV		 309 .data_offset = { PLANE0_DATA_OFFSET, 0 },
310 },
311 {
96c76efa 312 .name = "4:2:2, biplanar, YVU",
ef834f78 313 .fourcc = V4L2_PIX_FMT_NV61M,
96c76efa
HV		 314 .vdownsampling = { 1, 1 },
315 .bit_depth = { 8, 8 },
ef834f78
HV		 316 .is_yuv = true,
317 .planes = 2,
96c76efa 318 .buffers = 2,
ef834f78
HV		 319 .data_offset = { 0, PLANE0_DATA_OFFSET },
320 },
b521c375
HV		 321 {
322 .name = "4:2:0, triplanar, YUV",
323 .fourcc = V4L2_PIX_FMT_YUV420M,
324 .vdownsampling = { 1, 2, 2 },
325 .bit_depth = { 8, 4, 4 },
326 .is_yuv = true,
327 .planes = 3,
328 .buffers = 3,
329 },
330 {
331 .name = "4:2:0, triplanar, YVU",
332 .fourcc = V4L2_PIX_FMT_YVU420M,
333 .vdownsampling = { 1, 2, 2 },
334 .bit_depth = { 8, 4, 4 },
335 .is_yuv = true,
336 .planes = 3,
337 .buffers = 3,
338 },
339 {
340 .name = "4:2:0, biplanar, YUV",
341 .fourcc = V4L2_PIX_FMT_NV12M,
342 .vdownsampling = { 1, 2 },
343 .bit_depth = { 8, 8 },
344 .is_yuv = true,
345 .planes = 2,
346 .buffers = 2,
347 },
348 {
349 .name = "4:2:0, biplanar, YVU",
350 .fourcc = V4L2_PIX_FMT_NV21M,
351 .vdownsampling = { 1, 2 },
352 .bit_depth = { 8, 8 },
353 .is_yuv = true,
354 .planes = 2,
355 .buffers = 2,
356 },
ef834f78
HV		 357};
358
b521c375
HV		 359/* There are 6 multiplanar formats in the list */
360#define VIVID_MPLANAR_FORMATS 6
ef834f78 361
1fc78bc9 362const struct vivid_fmt *vivid_get_format(struct vivid_dev *dev, u32 pixelformat)
ef834f78
HV		 363{
364 const struct vivid_fmt *fmt;
365 unsigned k;
366
367 for (k = 0; k < ARRAY_SIZE(vivid_formats); k++) {
368 fmt = &vivid_formats[k];
369 if (fmt->fourcc == pixelformat)
ddcaee9d 370 if (fmt->buffers == 1 || dev->multiplanar)
ef834f78
HV		 371 return fmt;
372 }
373
374 return NULL;
375}
376
377bool vivid_vid_can_loop(struct vivid_dev *dev)
378{
379 if (dev->src_rect.width != dev->sink_rect.width ||
380 dev->src_rect.height != dev->sink_rect.height)
381 return false;
382 if (dev->fmt_cap->fourcc != dev->fmt_out->fourcc)
383 return false;
384 if (dev->field_cap != dev->field_out)
385 return false;
ba24b442
HV		 386 /*
387 * While this can be supported, it is just too much work
388 * to actually implement.
389 */
390 if (dev->field_cap == V4L2_FIELD_SEQ_TB ||
391 dev->field_cap == V4L2_FIELD_SEQ_BT)
392 return false;
ef834f78
HV		 393 if (vivid_is_svid_cap(dev) && vivid_is_svid_out(dev)) {
394 if (!(dev->std_cap & V4L2_STD_525_60) !=
395 !(dev->std_out & V4L2_STD_525_60))
396 return false;
397 return true;
398 }
399 if (vivid_is_hdmi_cap(dev) && vivid_is_hdmi_out(dev))
400 return true;
401 return false;
402}
403
404void vivid_send_source_change(struct vivid_dev *dev, unsigned type)
405{
406 struct v4l2_event ev = {
407 .type = V4L2_EVENT_SOURCE_CHANGE,
408 .u.src_change.changes = V4L2_EVENT_SRC_CH_RESOLUTION,
409 };
410 unsigned i;
411
412 for (i = 0; i < dev->num_inputs; i++) {
413 ev.id = i;
414 if (dev->input_type[i] == type) {
415 if (video_is_registered(&dev->vid_cap_dev) && dev->has_vid_cap)
416 v4l2_event_queue(&dev->vid_cap_dev, &ev);
417 if (video_is_registered(&dev->vbi_cap_dev) && dev->has_vbi_cap)
418 v4l2_event_queue(&dev->vbi_cap_dev, &ev);
419 }
420 }
421}
422
423/*
424 * Conversion function that converts a single-planar format to a
425 * single-plane multiplanar format.
426 */
427void fmt_sp2mp(const struct v4l2_format *sp_fmt, struct v4l2_format *mp_fmt)
428{
429 struct v4l2_pix_format_mplane *mp = &mp_fmt->fmt.pix_mp;
430 struct v4l2_plane_pix_format *ppix = &mp->plane_fmt[0];
431 const struct v4l2_pix_format *pix = &sp_fmt->fmt.pix;
432 bool is_out = sp_fmt->type == V4L2_BUF_TYPE_VIDEO_OUTPUT;
433
434 memset(mp->reserved, 0, sizeof(mp->reserved));
435 mp_fmt->type = is_out ? V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE :
436 V4L2_CAP_VIDEO_CAPTURE_MPLANE;
437 mp->width = pix->width;
438 mp->height = pix->height;
439 mp->pixelformat = pix->pixelformat;
440 mp->field = pix->field;
441 mp->colorspace = pix->colorspace;
3e8a78d1
HV		 442 mp->ycbcr_enc = pix->ycbcr_enc;
443 mp->quantization = pix->quantization;
ef834f78
HV		 444 mp->num_planes = 1;
445 mp->flags = pix->flags;
446 ppix->sizeimage = pix->sizeimage;
447 ppix->bytesperline = pix->bytesperline;
448 memset(ppix->reserved, 0, sizeof(ppix->reserved));
449}
450
451int fmt_sp2mp_func(struct file *file, void *priv,
452 struct v4l2_format *f, fmtfunc func)
453{
454 struct v4l2_format fmt;
455 struct v4l2_pix_format_mplane *mp = &fmt.fmt.pix_mp;
456 struct v4l2_plane_pix_format *ppix = &mp->plane_fmt[0];
457 struct v4l2_pix_format *pix = &f->fmt.pix;
458 int ret;
459
460 /* Converts to a mplane format */
461 fmt_sp2mp(f, &fmt);
462 /* Passes it to the generic mplane format function */
463 ret = func(file, priv, &fmt);
464 /* Copies back the mplane data to the single plane format */
465 pix->width = mp->width;
466 pix->height = mp->height;
467 pix->pixelformat = mp->pixelformat;
468 pix->field = mp->field;
469 pix->colorspace = mp->colorspace;
3e8a78d1
HV		 470 pix->ycbcr_enc = mp->ycbcr_enc;
471 pix->quantization = mp->quantization;
ef834f78
HV		 472 pix->sizeimage = ppix->sizeimage;
473 pix->bytesperline = ppix->bytesperline;
474 pix->flags = mp->flags;
475 return ret;
476}
477
478/* v4l2_rect helper function: copy the width/height values */
479void rect_set_size_to(struct v4l2_rect *r, const struct v4l2_rect *size)
480{
481 r->width = size->width;
482 r->height = size->height;
483}
484
485/* v4l2_rect helper function: width and height of r should be >= min_size */
486void rect_set_min_size(struct v4l2_rect *r, const struct v4l2_rect *min_size)
487{
488 if (r->width < min_size->width)
489 r->width = min_size->width;
490 if (r->height < min_size->height)
491 r->height = min_size->height;
492}
493
494/* v4l2_rect helper function: width and height of r should be <= max_size */
495void rect_set_max_size(struct v4l2_rect *r, const struct v4l2_rect *max_size)
496{
497 if (r->width > max_size->width)
498 r->width = max_size->width;
499 if (r->height > max_size->height)
500 r->height = max_size->height;
501}
502
503/* v4l2_rect helper function: r should be inside boundary */
504void rect_map_inside(struct v4l2_rect *r, const struct v4l2_rect *boundary)
505{
506 rect_set_max_size(r, boundary);
507 if (r->left < boundary->left)
508 r->left = boundary->left;
509 if (r->top < boundary->top)
510 r->top = boundary->top;
511 if (r->left + r->width > boundary->width)
512 r->left = boundary->width - r->width;
513 if (r->top + r->height > boundary->height)
514 r->top = boundary->height - r->height;
515}
516
517/* v4l2_rect helper function: return true if r1 has the same size as r2 */
518bool rect_same_size(const struct v4l2_rect *r1, const struct v4l2_rect *r2)
519{
520 return r1->width == r2->width && r1->height == r2->height;
521}
522
523/* v4l2_rect helper function: calculate the intersection of two rects */
524struct v4l2_rect rect_intersect(const struct v4l2_rect *a, const struct v4l2_rect *b)
525{
526 struct v4l2_rect r;
527 int right, bottom;
528
529 r.top = max(a->top, b->top);
530 r.left = max(a->left, b->left);
531 bottom = min(a->top + a->height, b->top + b->height);
532 right = min(a->left + a->width, b->left + b->width);
533 r.height = max(0, bottom - r.top);
534 r.width = max(0, right - r.left);
535 return r;
536}
537
538/*
539 * v4l2_rect helper function: scale rect r by to->width / from->width and
540 * to->height / from->height.
541 */
542void rect_scale(struct v4l2_rect *r, const struct v4l2_rect *from,
543 const struct v4l2_rect *to)
544{
545 if (from->width == 0 || from->height == 0) {
546 r->left = r->top = r->width = r->height = 0;
547 return;
548 }
549 r->left = (((r->left - from->left) * to->width) / from->width) & ~1;
550 r->width = ((r->width * to->width) / from->width) & ~1;
551 r->top = ((r->top - from->top) * to->height) / from->height;
552 r->height = (r->height * to->height) / from->height;
553}
554
555bool rect_overlap(const struct v4l2_rect *r1, const struct v4l2_rect *r2)
556{
557 /*
558 * IF the left side of r1 is to the right of the right side of r2 OR
559 * the left side of r2 is to the right of the right side of r1 THEN
560 * they do not overlap.
561 */
562 if (r1->left >= r2->left + r2->width ||
563 r2->left >= r1->left + r1->width)
564 return false;
565 /*
566 * IF the top side of r1 is below the bottom of r2 OR
567 * the top side of r2 is below the bottom of r1 THEN
568 * they do not overlap.
569 */
570 if (r1->top >= r2->top + r2->height ||
571 r2->top >= r1->top + r1->height)
572 return false;
573 return true;
574}
575int vivid_vid_adjust_sel(unsigned flags, struct v4l2_rect *r)
576{
577 unsigned w = r->width;
578 unsigned h = r->height;
579
580 if (!(flags & V4L2_SEL_FLAG_LE)) {
581 w++;
582 h++;
583 if (w < 2)
584 w = 2;
585 if (h < 2)
586 h = 2;
587 }
588 if (!(flags & V4L2_SEL_FLAG_GE)) {
589 if (w > MAX_WIDTH)
590 w = MAX_WIDTH;
591 if (h > MAX_HEIGHT)
592 h = MAX_HEIGHT;
593 }
594 w = w & ~1;
595 h = h & ~1;
596 if (w < 2 || h < 2)
597 return -ERANGE;
598 if (w > MAX_WIDTH || h > MAX_HEIGHT)
599 return -ERANGE;
600 if (r->top < 0)
601 r->top = 0;
602 if (r->left < 0)
603 r->left = 0;
604 r->left &= ~1;
605 r->top &= ~1;
606 if (r->left + w > MAX_WIDTH)
607 r->left = MAX_WIDTH - w;
608 if (r->top + h > MAX_HEIGHT)
609 r->top = MAX_HEIGHT - h;
610 if ((flags & (V4L2_SEL_FLAG_GE | V4L2_SEL_FLAG_LE)) ==
611 (V4L2_SEL_FLAG_GE | V4L2_SEL_FLAG_LE) &&
612 (r->width != w || r->height != h))
613 return -ERANGE;
614 r->width = w;
615 r->height = h;
616 return 0;
617}
618
619int vivid_enum_fmt_vid(struct file *file, void *priv,
620 struct v4l2_fmtdesc *f)
621{
622 struct vivid_dev *dev = video_drvdata(file);
623 const struct vivid_fmt *fmt;
624
625 if (f->index >= ARRAY_SIZE(vivid_formats) -
626 (dev->multiplanar ? 0 : VIVID_MPLANAR_FORMATS))
627 return -EINVAL;
628
629 fmt = &vivid_formats[f->index];
630
631 strlcpy(f->description, fmt->name, sizeof(f->description));
632 f->pixelformat = fmt->fourcc;
633 return 0;
634}
635
636int vidioc_enum_fmt_vid_mplane(struct file *file, void *priv,
637 struct v4l2_fmtdesc *f)
638{
639 struct vivid_dev *dev = video_drvdata(file);
640
641 if (!dev->multiplanar)
642 return -ENOTTY;
643 return vivid_enum_fmt_vid(file, priv, f);
644}
645
646int vidioc_enum_fmt_vid(struct file *file, void *priv,
647 struct v4l2_fmtdesc *f)
648{
649 struct vivid_dev *dev = video_drvdata(file);
650
651 if (dev->multiplanar)
652 return -ENOTTY;
653 return vivid_enum_fmt_vid(file, priv, f);
654}
655
656int vidioc_g_std(struct file *file, void *priv, v4l2_std_id *id)
657{
658 struct vivid_dev *dev = video_drvdata(file);
659 struct video_device *vdev = video_devdata(file);
660
661 if (vdev->vfl_dir == VFL_DIR_RX) {
662 if (!vivid_is_sdtv_cap(dev))
663 return -ENODATA;
664 *id = dev->std_cap;
665 } else {
666 if (!vivid_is_svid_out(dev))
667 return -ENODATA;
668 *id = dev->std_out;
669 }
670 return 0;
671}
672
673int vidioc_g_dv_timings(struct file *file, void *_fh,
674 struct v4l2_dv_timings *timings)
675{
676 struct vivid_dev *dev = video_drvdata(file);
677 struct video_device *vdev = video_devdata(file);
678
679 if (vdev->vfl_dir == VFL_DIR_RX) {
680 if (!vivid_is_hdmi_cap(dev))
681 return -ENODATA;
682 *timings = dev->dv_timings_cap;
683 } else {
684 if (!vivid_is_hdmi_out(dev))
685 return -ENODATA;
686 *timings = dev->dv_timings_out;
687 }
688 return 0;
689}
690
691int vidioc_enum_dv_timings(struct file *file, void *_fh,
692 struct v4l2_enum_dv_timings *timings)
693{
694 struct vivid_dev *dev = video_drvdata(file);
695 struct video_device *vdev = video_devdata(file);
696
697 if (vdev->vfl_dir == VFL_DIR_RX) {
698 if (!vivid_is_hdmi_cap(dev))
699 return -ENODATA;
700 } else {
701 if (!vivid_is_hdmi_out(dev))
702 return -ENODATA;
703 }
704 return v4l2_enum_dv_timings_cap(timings, &vivid_dv_timings_cap,
705 NULL, NULL);
706}
707
708int vidioc_dv_timings_cap(struct file *file, void *_fh,
709 struct v4l2_dv_timings_cap *cap)
710{
711 struct vivid_dev *dev = video_drvdata(file);
712 struct video_device *vdev = video_devdata(file);
713
714 if (vdev->vfl_dir == VFL_DIR_RX) {
715 if (!vivid_is_hdmi_cap(dev))
716 return -ENODATA;
717 } else {
718 if (!vivid_is_hdmi_out(dev))
719 return -ENODATA;
720 }
721 *cap = vivid_dv_timings_cap;
722 return 0;
723}
724
725int vidioc_g_edid(struct file *file, void *_fh,
726 struct v4l2_edid *edid)
727{
728 struct vivid_dev *dev = video_drvdata(file);
729 struct video_device *vdev = video_devdata(file);
730
731 memset(edid->reserved, 0, sizeof(edid->reserved));
732 if (vdev->vfl_dir == VFL_DIR_RX) {
733 if (edid->pad >= dev->num_inputs)
734 return -EINVAL;
735 if (dev->input_type[edid->pad] != HDMI)
736 return -EINVAL;
737 } else {
738 if (edid->pad >= dev->num_outputs)
739 return -EINVAL;
740 if (dev->output_type[edid->pad] != HDMI)
741 return -EINVAL;
742 }
743 if (edid->start_block == 0 && edid->blocks == 0) {
744 edid->blocks = dev->edid_blocks;
745 return 0;
746 }
747 if (dev->edid_blocks == 0)
748 return -ENODATA;
749 if (edid->start_block >= dev->edid_blocks)
750 return -EINVAL;
751 if (edid->start_block + edid->blocks > dev->edid_blocks)
752 edid->blocks = dev->edid_blocks - edid->start_block;
753 memcpy(edid->edid, dev->edid, edid->blocks * 128);
754 return 0;
755}
Linux kernel - Deliverables
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