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[media] vivid: add support for NV24 and NV42
[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 },
dde72bd7
HV		 146 {
147 .name = "YUV 4:4:4 biplanar",
148 .fourcc = V4L2_PIX_FMT_NV24,
149 .vdownsampling = { 1, 1 },
150 .bit_depth = { 8, 16 },
151 .is_yuv = true,
152 .planes = 2,
153 .buffers = 1,
154 },
155 {
156 .name = "YVU 4:4:4 biplanar",
157 .fourcc = V4L2_PIX_FMT_NV42,
158 .vdownsampling = { 1, 1 },
159 .bit_depth = { 8, 16 },
160 .is_yuv = true,
161 .planes = 2,
162 .buffers = 1,
163 },
b521c375
HV		 164 {
165 .name = "Monochrome",
166 .fourcc = V4L2_PIX_FMT_GREY,
167 .vdownsampling = { 1 },
168 .bit_depth = { 8 },
169 .is_yuv = true,
170 .planes = 1,
171 .buffers = 1,
172 },
ef834f78
HV		 173 {
174 .name = "RGB565 (LE)",
175 .fourcc = V4L2_PIX_FMT_RGB565, /* gggbbbbb rrrrrggg */
96c76efa
HV		 176 .vdownsampling = { 1 },
177 .bit_depth = { 16 },
ef834f78 178 .planes = 1,
96c76efa 179 .buffers = 1,
ef834f78
HV		 180 .can_do_overlay = true,
181 },
182 {
183 .name = "RGB565 (BE)",
184 .fourcc = V4L2_PIX_FMT_RGB565X, /* rrrrrggg gggbbbbb */
96c76efa
HV		 185 .vdownsampling = { 1 },
186 .bit_depth = { 16 },
ef834f78 187 .planes = 1,
96c76efa 188 .buffers = 1,
ef834f78
HV		 189 .can_do_overlay = true,
190 },
8aca230b
HV		 191 {
192 .name = "RGB444",
193 .fourcc = V4L2_PIX_FMT_RGB444, /* xxxxrrrr ggggbbbb */
194 .vdownsampling = { 1 },
195 .bit_depth = { 16 },
196 .planes = 1,
197 .buffers = 1,
198 },
199 {
200 .name = "XRGB444",
201 .fourcc = V4L2_PIX_FMT_XRGB444, /* xxxxrrrr ggggbbbb */
202 .vdownsampling = { 1 },
203 .bit_depth = { 16 },
204 .planes = 1,
205 .buffers = 1,
206 },
207 {
208 .name = "ARGB444",
209 .fourcc = V4L2_PIX_FMT_ARGB444, /* aaaarrrr ggggbbbb */
210 .vdownsampling = { 1 },
211 .bit_depth = { 16 },
212 .planes = 1,
213 .buffers = 1,
214 .alpha_mask = 0x00f0,
215 },
ef834f78
HV		 216 {
217 .name = "RGB555 (LE)",
9e1b73cf 218 .fourcc = V4L2_PIX_FMT_RGB555, /* gggbbbbb xrrrrrgg */
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 },
225 {
226 .name = "XRGB555 (LE)",
9e1b73cf 227 .fourcc = V4L2_PIX_FMT_XRGB555, /* gggbbbbb xrrrrrgg */
96c76efa
HV		 228 .vdownsampling = { 1 },
229 .bit_depth = { 16 },
ef834f78 230 .planes = 1,
96c76efa 231 .buffers = 1,
ef834f78
HV		 232 .can_do_overlay = true,
233 },
234 {
235 .name = "ARGB555 (LE)",
236 .fourcc = V4L2_PIX_FMT_ARGB555, /* gggbbbbb arrrrrgg */
96c76efa
HV		 237 .vdownsampling = { 1 },
238 .bit_depth = { 16 },
ef834f78 239 .planes = 1,
96c76efa 240 .buffers = 1,
ef834f78
HV		 241 .can_do_overlay = true,
242 .alpha_mask = 0x8000,
243 },
244 {
245 .name = "RGB555 (BE)",
9e1b73cf 246 .fourcc = V4L2_PIX_FMT_RGB555X, /* xrrrrrgg gggbbbbb */
96c76efa
HV		 247 .vdownsampling = { 1 },
248 .bit_depth = { 16 },
ef834f78 249 .planes = 1,
96c76efa 250 .buffers = 1,
8f1ff543
HV		 251 },
252 {
253 .name = "XRGB555 (BE)",
254 .fourcc = V4L2_PIX_FMT_XRGB555X, /* xrrrrrgg gggbbbbb */
255 .vdownsampling = { 1 },
256 .bit_depth = { 16 },
257 .planes = 1,
258 .buffers = 1,
259 },
260 {
261 .name = "ARGB555 (BE)",
262 .fourcc = V4L2_PIX_FMT_ARGB555X, /* arrrrrgg gggbbbbb */
263 .vdownsampling = { 1 },
264 .bit_depth = { 16 },
265 .planes = 1,
266 .buffers = 1,
267 .alpha_mask = 0x0080,
ef834f78
HV		 268 },
269 {
270 .name = "RGB24 (LE)",
271 .fourcc = V4L2_PIX_FMT_RGB24, /* rgb */
96c76efa
HV		 272 .vdownsampling = { 1 },
273 .bit_depth = { 24 },
ef834f78 274 .planes = 1,
96c76efa 275 .buffers = 1,
ef834f78
HV		 276 },
277 {
278 .name = "RGB24 (BE)",
279 .fourcc = V4L2_PIX_FMT_BGR24, /* bgr */
96c76efa
HV		 280 .vdownsampling = { 1 },
281 .bit_depth = { 24 },
ef834f78 282 .planes = 1,
96c76efa 283 .buffers = 1,
ef834f78
HV		 284 },
285 {
286 .name = "RGB32 (LE)",
9e1b73cf 287 .fourcc = V4L2_PIX_FMT_RGB32, /* xrgb */
96c76efa
HV		 288 .vdownsampling = { 1 },
289 .bit_depth = { 32 },
ef834f78 290 .planes = 1,
96c76efa 291 .buffers = 1,
ef834f78
HV		 292 },
293 {
294 .name = "RGB32 (BE)",
9e1b73cf 295 .fourcc = V4L2_PIX_FMT_BGR32, /* bgrx */
96c76efa
HV		 296 .vdownsampling = { 1 },
297 .bit_depth = { 32 },
ef834f78 298 .planes = 1,
96c76efa 299 .buffers = 1,
ef834f78
HV		 300 },
301 {
302 .name = "XRGB32 (LE)",
9e1b73cf 303 .fourcc = V4L2_PIX_FMT_XRGB32, /* xrgb */
96c76efa
HV		 304 .vdownsampling = { 1 },
305 .bit_depth = { 32 },
ef834f78 306 .planes = 1,
96c76efa 307 .buffers = 1,
ef834f78
HV		 308 },
309 {
310 .name = "XRGB32 (BE)",
9e1b73cf 311 .fourcc = V4L2_PIX_FMT_XBGR32, /* bgrx */
96c76efa
HV		 312 .vdownsampling = { 1 },
313 .bit_depth = { 32 },
ef834f78 314 .planes = 1,
96c76efa 315 .buffers = 1,
ef834f78
HV		 316 },
317 {
318 .name = "ARGB32 (LE)",
319 .fourcc = V4L2_PIX_FMT_ARGB32, /* argb */
96c76efa
HV		 320 .vdownsampling = { 1 },
321 .bit_depth = { 32 },
ef834f78 322 .planes = 1,
96c76efa 323 .buffers = 1,
ef834f78
HV		 324 .alpha_mask = 0x000000ff,
325 },
326 {
327 .name = "ARGB32 (BE)",
328 .fourcc = V4L2_PIX_FMT_ABGR32, /* bgra */
96c76efa
HV		 329 .vdownsampling = { 1 },
330 .bit_depth = { 32 },
ef834f78 331 .planes = 1,
96c76efa 332 .buffers = 1,
ef834f78
HV		 333 .alpha_mask = 0xff000000,
334 },
335 {
96c76efa 336 .name = "4:2:2, biplanar, YUV",
ef834f78 337 .fourcc = V4L2_PIX_FMT_NV16M,
96c76efa
HV		 338 .vdownsampling = { 1, 1 },
339 .bit_depth = { 8, 8 },
ef834f78
HV		 340 .is_yuv = true,
341 .planes = 2,
96c76efa 342 .buffers = 2,
ef834f78
HV		 343 .data_offset = { PLANE0_DATA_OFFSET, 0 },
344 },
345 {
96c76efa 346 .name = "4:2:2, biplanar, YVU",
ef834f78 347 .fourcc = V4L2_PIX_FMT_NV61M,
96c76efa
HV		 348 .vdownsampling = { 1, 1 },
349 .bit_depth = { 8, 8 },
ef834f78
HV		 350 .is_yuv = true,
351 .planes = 2,
96c76efa 352 .buffers = 2,
ef834f78
HV		 353 .data_offset = { 0, PLANE0_DATA_OFFSET },
354 },
b521c375
HV		 355 {
356 .name = "4:2:0, triplanar, YUV",
357 .fourcc = V4L2_PIX_FMT_YUV420M,
358 .vdownsampling = { 1, 2, 2 },
359 .bit_depth = { 8, 4, 4 },
360 .is_yuv = true,
361 .planes = 3,
362 .buffers = 3,
363 },
364 {
365 .name = "4:2:0, triplanar, YVU",
366 .fourcc = V4L2_PIX_FMT_YVU420M,
367 .vdownsampling = { 1, 2, 2 },
368 .bit_depth = { 8, 4, 4 },
369 .is_yuv = true,
370 .planes = 3,
371 .buffers = 3,
372 },
373 {
374 .name = "4:2:0, biplanar, YUV",
375 .fourcc = V4L2_PIX_FMT_NV12M,
376 .vdownsampling = { 1, 2 },
377 .bit_depth = { 8, 8 },
378 .is_yuv = true,
379 .planes = 2,
380 .buffers = 2,
381 },
382 {
383 .name = "4:2:0, biplanar, YVU",
384 .fourcc = V4L2_PIX_FMT_NV21M,
385 .vdownsampling = { 1, 2 },
386 .bit_depth = { 8, 8 },
387 .is_yuv = true,
388 .planes = 2,
389 .buffers = 2,
390 },
ef834f78
HV		 391};
392
b521c375
HV		 393/* There are 6 multiplanar formats in the list */
394#define VIVID_MPLANAR_FORMATS 6
ef834f78 395
1fc78bc9 396const struct vivid_fmt *vivid_get_format(struct vivid_dev *dev, u32 pixelformat)
ef834f78
HV		 397{
398 const struct vivid_fmt *fmt;
399 unsigned k;
400
401 for (k = 0; k < ARRAY_SIZE(vivid_formats); k++) {
402 fmt = &vivid_formats[k];
403 if (fmt->fourcc == pixelformat)
ddcaee9d 404 if (fmt->buffers == 1 || dev->multiplanar)
ef834f78
HV		 405 return fmt;
406 }
407
408 return NULL;
409}
410
411bool vivid_vid_can_loop(struct vivid_dev *dev)
412{
413 if (dev->src_rect.width != dev->sink_rect.width ||
414 dev->src_rect.height != dev->sink_rect.height)
415 return false;
416 if (dev->fmt_cap->fourcc != dev->fmt_out->fourcc)
417 return false;
418 if (dev->field_cap != dev->field_out)
419 return false;
ba24b442
HV		 420 /*
421 * While this can be supported, it is just too much work
422 * to actually implement.
423 */
424 if (dev->field_cap == V4L2_FIELD_SEQ_TB ||
425 dev->field_cap == V4L2_FIELD_SEQ_BT)
426 return false;
ef834f78
HV		 427 if (vivid_is_svid_cap(dev) && vivid_is_svid_out(dev)) {
428 if (!(dev->std_cap & V4L2_STD_525_60) !=
429 !(dev->std_out & V4L2_STD_525_60))
430 return false;
431 return true;
432 }
433 if (vivid_is_hdmi_cap(dev) && vivid_is_hdmi_out(dev))
434 return true;
435 return false;
436}
437
438void vivid_send_source_change(struct vivid_dev *dev, unsigned type)
439{
440 struct v4l2_event ev = {
441 .type = V4L2_EVENT_SOURCE_CHANGE,
442 .u.src_change.changes = V4L2_EVENT_SRC_CH_RESOLUTION,
443 };
444 unsigned i;
445
446 for (i = 0; i < dev->num_inputs; i++) {
447 ev.id = i;
448 if (dev->input_type[i] == type) {
449 if (video_is_registered(&dev->vid_cap_dev) && dev->has_vid_cap)
450 v4l2_event_queue(&dev->vid_cap_dev, &ev);
451 if (video_is_registered(&dev->vbi_cap_dev) && dev->has_vbi_cap)
452 v4l2_event_queue(&dev->vbi_cap_dev, &ev);
453 }
454 }
455}
456
457/*
458 * Conversion function that converts a single-planar format to a
459 * single-plane multiplanar format.
460 */
461void fmt_sp2mp(const struct v4l2_format *sp_fmt, struct v4l2_format *mp_fmt)
462{
463 struct v4l2_pix_format_mplane *mp = &mp_fmt->fmt.pix_mp;
464 struct v4l2_plane_pix_format *ppix = &mp->plane_fmt[0];
465 const struct v4l2_pix_format *pix = &sp_fmt->fmt.pix;
466 bool is_out = sp_fmt->type == V4L2_BUF_TYPE_VIDEO_OUTPUT;
467
468 memset(mp->reserved, 0, sizeof(mp->reserved));
469 mp_fmt->type = is_out ? V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE :
470 V4L2_CAP_VIDEO_CAPTURE_MPLANE;
471 mp->width = pix->width;
472 mp->height = pix->height;
473 mp->pixelformat = pix->pixelformat;
474 mp->field = pix->field;
475 mp->colorspace = pix->colorspace;
3e8a78d1
HV		 476 mp->ycbcr_enc = pix->ycbcr_enc;
477 mp->quantization = pix->quantization;
ef834f78
HV		 478 mp->num_planes = 1;
479 mp->flags = pix->flags;
480 ppix->sizeimage = pix->sizeimage;
481 ppix->bytesperline = pix->bytesperline;
482 memset(ppix->reserved, 0, sizeof(ppix->reserved));
483}
484
485int fmt_sp2mp_func(struct file *file, void *priv,
486 struct v4l2_format *f, fmtfunc func)
487{
488 struct v4l2_format fmt;
489 struct v4l2_pix_format_mplane *mp = &fmt.fmt.pix_mp;
490 struct v4l2_plane_pix_format *ppix = &mp->plane_fmt[0];
491 struct v4l2_pix_format *pix = &f->fmt.pix;
492 int ret;
493
494 /* Converts to a mplane format */
495 fmt_sp2mp(f, &fmt);
496 /* Passes it to the generic mplane format function */
497 ret = func(file, priv, &fmt);
498 /* Copies back the mplane data to the single plane format */
499 pix->width = mp->width;
500 pix->height = mp->height;
501 pix->pixelformat = mp->pixelformat;
502 pix->field = mp->field;
503 pix->colorspace = mp->colorspace;
3e8a78d1
HV		 504 pix->ycbcr_enc = mp->ycbcr_enc;
505 pix->quantization = mp->quantization;
ef834f78
HV		 506 pix->sizeimage = ppix->sizeimage;
507 pix->bytesperline = ppix->bytesperline;
508 pix->flags = mp->flags;
509 return ret;
510}
511
512/* v4l2_rect helper function: copy the width/height values */
513void rect_set_size_to(struct v4l2_rect *r, const struct v4l2_rect *size)
514{
515 r->width = size->width;
516 r->height = size->height;
517}
518
519/* v4l2_rect helper function: width and height of r should be >= min_size */
520void rect_set_min_size(struct v4l2_rect *r, const struct v4l2_rect *min_size)
521{
522 if (r->width < min_size->width)
523 r->width = min_size->width;
524 if (r->height < min_size->height)
525 r->height = min_size->height;
526}
527
528/* v4l2_rect helper function: width and height of r should be <= max_size */
529void rect_set_max_size(struct v4l2_rect *r, const struct v4l2_rect *max_size)
530{
531 if (r->width > max_size->width)
532 r->width = max_size->width;
533 if (r->height > max_size->height)
534 r->height = max_size->height;
535}
536
537/* v4l2_rect helper function: r should be inside boundary */
538void rect_map_inside(struct v4l2_rect *r, const struct v4l2_rect *boundary)
539{
540 rect_set_max_size(r, boundary);
541 if (r->left < boundary->left)
542 r->left = boundary->left;
543 if (r->top < boundary->top)
544 r->top = boundary->top;
545 if (r->left + r->width > boundary->width)
546 r->left = boundary->width - r->width;
547 if (r->top + r->height > boundary->height)
548 r->top = boundary->height - r->height;
549}
550
551/* v4l2_rect helper function: return true if r1 has the same size as r2 */
552bool rect_same_size(const struct v4l2_rect *r1, const struct v4l2_rect *r2)
553{
554 return r1->width == r2->width && r1->height == r2->height;
555}
556
557/* v4l2_rect helper function: calculate the intersection of two rects */
558struct v4l2_rect rect_intersect(const struct v4l2_rect *a, const struct v4l2_rect *b)
559{
560 struct v4l2_rect r;
561 int right, bottom;
562
563 r.top = max(a->top, b->top);
564 r.left = max(a->left, b->left);
565 bottom = min(a->top + a->height, b->top + b->height);
566 right = min(a->left + a->width, b->left + b->width);
567 r.height = max(0, bottom - r.top);
568 r.width = max(0, right - r.left);
569 return r;
570}
571
572/*
573 * v4l2_rect helper function: scale rect r by to->width / from->width and
574 * to->height / from->height.
575 */
576void rect_scale(struct v4l2_rect *r, const struct v4l2_rect *from,
577 const struct v4l2_rect *to)
578{
579 if (from->width == 0 || from->height == 0) {
580 r->left = r->top = r->width = r->height = 0;
581 return;
582 }
583 r->left = (((r->left - from->left) * to->width) / from->width) & ~1;
584 r->width = ((r->width * to->width) / from->width) & ~1;
585 r->top = ((r->top - from->top) * to->height) / from->height;
586 r->height = (r->height * to->height) / from->height;
587}
588
589bool rect_overlap(const struct v4l2_rect *r1, const struct v4l2_rect *r2)
590{
591 /*
592 * IF the left side of r1 is to the right of the right side of r2 OR
593 * the left side of r2 is to the right of the right side of r1 THEN
594 * they do not overlap.
595 */
596 if (r1->left >= r2->left + r2->width ||
597 r2->left >= r1->left + r1->width)
598 return false;
599 /*
600 * IF the top side of r1 is below the bottom of r2 OR
601 * the top side of r2 is below the bottom of r1 THEN
602 * they do not overlap.
603 */
604 if (r1->top >= r2->top + r2->height ||
605 r2->top >= r1->top + r1->height)
606 return false;
607 return true;
608}
609int vivid_vid_adjust_sel(unsigned flags, struct v4l2_rect *r)
610{
611 unsigned w = r->width;
612 unsigned h = r->height;
613
614 if (!(flags & V4L2_SEL_FLAG_LE)) {
615 w++;
616 h++;
617 if (w < 2)
618 w = 2;
619 if (h < 2)
620 h = 2;
621 }
622 if (!(flags & V4L2_SEL_FLAG_GE)) {
623 if (w > MAX_WIDTH)
624 w = MAX_WIDTH;
625 if (h > MAX_HEIGHT)
626 h = MAX_HEIGHT;
627 }
628 w = w & ~1;
629 h = h & ~1;
630 if (w < 2 || h < 2)
631 return -ERANGE;
632 if (w > MAX_WIDTH || h > MAX_HEIGHT)
633 return -ERANGE;
634 if (r->top < 0)
635 r->top = 0;
636 if (r->left < 0)
637 r->left = 0;
638 r->left &= ~1;
639 r->top &= ~1;
640 if (r->left + w > MAX_WIDTH)
641 r->left = MAX_WIDTH - w;
642 if (r->top + h > MAX_HEIGHT)
643 r->top = MAX_HEIGHT - h;
644 if ((flags & (V4L2_SEL_FLAG_GE | V4L2_SEL_FLAG_LE)) ==
645 (V4L2_SEL_FLAG_GE | V4L2_SEL_FLAG_LE) &&
646 (r->width != w || r->height != h))
647 return -ERANGE;
648 r->width = w;
649 r->height = h;
650 return 0;
651}
652
653int vivid_enum_fmt_vid(struct file *file, void *priv,
654 struct v4l2_fmtdesc *f)
655{
656 struct vivid_dev *dev = video_drvdata(file);
657 const struct vivid_fmt *fmt;
658
659 if (f->index >= ARRAY_SIZE(vivid_formats) -
660 (dev->multiplanar ? 0 : VIVID_MPLANAR_FORMATS))
661 return -EINVAL;
662
663 fmt = &vivid_formats[f->index];
664
665 strlcpy(f->description, fmt->name, sizeof(f->description));
666 f->pixelformat = fmt->fourcc;
667 return 0;
668}
669
670int vidioc_enum_fmt_vid_mplane(struct file *file, void *priv,
671 struct v4l2_fmtdesc *f)
672{
673 struct vivid_dev *dev = video_drvdata(file);
674
675 if (!dev->multiplanar)
676 return -ENOTTY;
677 return vivid_enum_fmt_vid(file, priv, f);
678}
679
680int vidioc_enum_fmt_vid(struct file *file, void *priv,
681 struct v4l2_fmtdesc *f)
682{
683 struct vivid_dev *dev = video_drvdata(file);
684
685 if (dev->multiplanar)
686 return -ENOTTY;
687 return vivid_enum_fmt_vid(file, priv, f);
688}
689
690int vidioc_g_std(struct file *file, void *priv, v4l2_std_id *id)
691{
692 struct vivid_dev *dev = video_drvdata(file);
693 struct video_device *vdev = video_devdata(file);
694
695 if (vdev->vfl_dir == VFL_DIR_RX) {
696 if (!vivid_is_sdtv_cap(dev))
697 return -ENODATA;
698 *id = dev->std_cap;
699 } else {
700 if (!vivid_is_svid_out(dev))
701 return -ENODATA;
702 *id = dev->std_out;
703 }
704 return 0;
705}
706
707int vidioc_g_dv_timings(struct file *file, void *_fh,
708 struct v4l2_dv_timings *timings)
709{
710 struct vivid_dev *dev = video_drvdata(file);
711 struct video_device *vdev = video_devdata(file);
712
713 if (vdev->vfl_dir == VFL_DIR_RX) {
714 if (!vivid_is_hdmi_cap(dev))
715 return -ENODATA;
716 *timings = dev->dv_timings_cap;
717 } else {
718 if (!vivid_is_hdmi_out(dev))
719 return -ENODATA;
720 *timings = dev->dv_timings_out;
721 }
722 return 0;
723}
724
725int vidioc_enum_dv_timings(struct file *file, void *_fh,
726 struct v4l2_enum_dv_timings *timings)
727{
728 struct vivid_dev *dev = video_drvdata(file);
729 struct video_device *vdev = video_devdata(file);
730
731 if (vdev->vfl_dir == VFL_DIR_RX) {
732 if (!vivid_is_hdmi_cap(dev))
733 return -ENODATA;
734 } else {
735 if (!vivid_is_hdmi_out(dev))
736 return -ENODATA;
737 }
738 return v4l2_enum_dv_timings_cap(timings, &vivid_dv_timings_cap,
739 NULL, NULL);
740}
741
742int vidioc_dv_timings_cap(struct file *file, void *_fh,
743 struct v4l2_dv_timings_cap *cap)
744{
745 struct vivid_dev *dev = video_drvdata(file);
746 struct video_device *vdev = video_devdata(file);
747
748 if (vdev->vfl_dir == VFL_DIR_RX) {
749 if (!vivid_is_hdmi_cap(dev))
750 return -ENODATA;
751 } else {
752 if (!vivid_is_hdmi_out(dev))
753 return -ENODATA;
754 }
755 *cap = vivid_dv_timings_cap;
756 return 0;
757}
758
759int vidioc_g_edid(struct file *file, void *_fh,
760 struct v4l2_edid *edid)
761{
762 struct vivid_dev *dev = video_drvdata(file);
763 struct video_device *vdev = video_devdata(file);
764
765 memset(edid->reserved, 0, sizeof(edid->reserved));
766 if (vdev->vfl_dir == VFL_DIR_RX) {
767 if (edid->pad >= dev->num_inputs)
768 return -EINVAL;
769 if (dev->input_type[edid->pad] != HDMI)
770 return -EINVAL;
771 } else {
772 if (edid->pad >= dev->num_outputs)
773 return -EINVAL;
774 if (dev->output_type[edid->pad] != HDMI)
775 return -EINVAL;
776 }
777 if (edid->start_block == 0 && edid->blocks == 0) {
778 edid->blocks = dev->edid_blocks;
779 return 0;
780 }
781 if (dev->edid_blocks == 0)
782 return -ENODATA;
783 if (edid->start_block >= dev->edid_blocks)
784 return -EINVAL;
785 if (edid->start_block + edid->blocks > dev->edid_blocks)
786 edid->blocks = dev->edid_blocks - edid->start_block;
787 memcpy(edid->edid, dev->edid, edid->blocks * 128);
788 return 0;
789}
Linux kernel - Deliverables
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