drivers/media/platform/vivid/vivid-vid-common.c

   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
  32 const 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
  46 struct 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_SBGGR10, /* Bayer BG/GR */
 394                 .vdownsampling = { 1 },
 395                 .bit_depth = { 16 },
 396                 .planes   = 1,
 397                 .buffers = 1,
 398         },
 399         {
 400                 .fourcc   = V4L2_PIX_FMT_SGBRG10, /* Bayer GB/RG */
 401                 .vdownsampling = { 1 },
 402                 .bit_depth = { 16 },
 403                 .planes   = 1,
 404                 .buffers = 1,
 405         },
 406         {
 407                 .fourcc   = V4L2_PIX_FMT_SGRBG10, /* Bayer GR/BG */
 408                 .vdownsampling = { 1 },
 409                 .bit_depth = { 16 },
 410                 .planes   = 1,
 411                 .buffers = 1,
 412         },
 413         {
 414                 .fourcc   = V4L2_PIX_FMT_SRGGB10, /* Bayer RG/GB */
 415                 .vdownsampling = { 1 },
 416                 .bit_depth = { 16 },
 417                 .planes   = 1,
 418                 .buffers = 1,
 419         },
 420         {
 421                 .fourcc   = V4L2_PIX_FMT_SBGGR12, /* Bayer BG/GR */
 422                 .vdownsampling = { 1 },
 423                 .bit_depth = { 16 },
 424                 .planes   = 1,
 425                 .buffers = 1,
 426         },
 427         {
 428                 .fourcc   = V4L2_PIX_FMT_SGBRG12, /* Bayer GB/RG */
 429                 .vdownsampling = { 1 },
 430                 .bit_depth = { 16 },
 431                 .planes   = 1,
 432                 .buffers = 1,
 433         },
 434         {
 435                 .fourcc   = V4L2_PIX_FMT_SGRBG12, /* Bayer GR/BG */
 436                 .vdownsampling = { 1 },
 437                 .bit_depth = { 16 },
 438                 .planes   = 1,
 439                 .buffers = 1,
 440         },
 441         {
 442                 .fourcc   = V4L2_PIX_FMT_SRGGB12, /* Bayer RG/GB */
 443                 .vdownsampling = { 1 },
 444                 .bit_depth = { 16 },
 445                 .planes   = 1,
 446                 .buffers = 1,
 447         },
 448
 449         /* Multiplanar formats */
 450
 451         {
 452                 .fourcc   = V4L2_PIX_FMT_NV16M,
 453                 .vdownsampling = { 1, 1 },
 454                 .bit_depth = { 8, 8 },
 455                 .is_yuv   = true,
 456                 .planes   = 2,
 457                 .buffers = 2,
 458                 .data_offset = { PLANE0_DATA_OFFSET, 0 },
 459         },
 460         {
 461                 .fourcc   = V4L2_PIX_FMT_NV61M,
 462                 .vdownsampling = { 1, 1 },
 463                 .bit_depth = { 8, 8 },
 464                 .is_yuv   = true,
 465                 .planes   = 2,
 466                 .buffers = 2,
 467                 .data_offset = { 0, PLANE0_DATA_OFFSET },
 468         },
 469         {
 470                 .fourcc   = V4L2_PIX_FMT_YUV420M,
 471                 .vdownsampling = { 1, 2, 2 },
 472                 .bit_depth = { 8, 4, 4 },
 473                 .is_yuv   = true,
 474                 .planes   = 3,
 475                 .buffers = 3,
 476         },
 477         {
 478                 .fourcc   = V4L2_PIX_FMT_YVU420M,
 479                 .vdownsampling = { 1, 2, 2 },
 480                 .bit_depth = { 8, 4, 4 },
 481                 .is_yuv   = true,
 482                 .planes   = 3,
 483                 .buffers = 3,
 484         },
 485         {
 486                 .fourcc   = V4L2_PIX_FMT_NV12M,
 487                 .vdownsampling = { 1, 2 },
 488                 .bit_depth = { 8, 8 },
 489                 .is_yuv   = true,
 490                 .planes   = 2,
 491                 .buffers = 2,
 492         },
 493         {
 494                 .fourcc   = V4L2_PIX_FMT_NV21M,
 495                 .vdownsampling = { 1, 2 },
 496                 .bit_depth = { 8, 8 },
 497                 .is_yuv   = true,
 498                 .planes   = 2,
 499                 .buffers = 2,
 500         },
 501         {
 502                 .fourcc   = V4L2_PIX_FMT_YUV422M,
 503                 .vdownsampling = { 1, 1, 1 },
 504                 .bit_depth = { 8, 4, 4 },
 505                 .is_yuv   = true,
 506                 .planes   = 3,
 507                 .buffers = 3,
 508         },
 509         {
 510                 .fourcc   = V4L2_PIX_FMT_YVU422M,
 511                 .vdownsampling = { 1, 1, 1 },
 512                 .bit_depth = { 8, 4, 4 },
 513                 .is_yuv   = true,
 514                 .planes   = 3,
 515                 .buffers = 3,
 516         },
 517         {
 518                 .fourcc   = V4L2_PIX_FMT_YUV444M,
 519                 .vdownsampling = { 1, 1, 1 },
 520                 .bit_depth = { 8, 8, 8 },
 521                 .is_yuv   = true,
 522                 .planes   = 3,
 523                 .buffers = 3,
 524         },
 525         {
 526                 .fourcc   = V4L2_PIX_FMT_YVU444M,
 527                 .vdownsampling = { 1, 1, 1 },
 528                 .bit_depth = { 8, 8, 8 },
 529                 .is_yuv   = true,
 530                 .planes   = 3,
 531                 .buffers = 3,
 532         },
 533 };
 534
 535 /* There are this many multiplanar formats in the list */
 536 #define VIVID_MPLANAR_FORMATS 10
 537
 538 const struct vivid_fmt *vivid_get_format(struct vivid_dev *dev, u32 pixelformat)
 539 {
 540         const struct vivid_fmt *fmt;
 541         unsigned k;
 542
 543         for (k = 0; k < ARRAY_SIZE(vivid_formats); k++) {
 544                 fmt = &vivid_formats[k];
 545                 if (fmt->fourcc == pixelformat)
 546                         if (fmt->buffers == 1 || dev->multiplanar)
 547                                 return fmt;
 548         }
 549
 550         return NULL;
 551 }
 552
 553 bool vivid_vid_can_loop(struct vivid_dev *dev)
 554 {
 555         if (dev->src_rect.width != dev->sink_rect.width ||
 556             dev->src_rect.height != dev->sink_rect.height)
 557                 return false;
 558         if (dev->fmt_cap->fourcc != dev->fmt_out->fourcc)
 559                 return false;
 560         if (dev->field_cap != dev->field_out)
 561                 return false;
 562         /*
 563          * While this can be supported, it is just too much work
 564          * to actually implement.
 565          */
 566         if (dev->field_cap == V4L2_FIELD_SEQ_TB ||
 567             dev->field_cap == V4L2_FIELD_SEQ_BT)
 568                 return false;
 569         if (vivid_is_svid_cap(dev) && vivid_is_svid_out(dev)) {
 570                 if (!(dev->std_cap & V4L2_STD_525_60) !=
 571                     !(dev->std_out & V4L2_STD_525_60))
 572                         return false;
 573                 return true;
 574         }
 575         if (vivid_is_hdmi_cap(dev) && vivid_is_hdmi_out(dev))
 576                 return true;
 577         return false;
 578 }
 579
 580 void vivid_send_source_change(struct vivid_dev *dev, unsigned type)
 581 {
 582         struct v4l2_event ev = {
 583                 .type = V4L2_EVENT_SOURCE_CHANGE,
 584                 .u.src_change.changes = V4L2_EVENT_SRC_CH_RESOLUTION,
 585         };
 586         unsigned i;
 587
 588         for (i = 0; i < dev->num_inputs; i++) {
 589                 ev.id = i;
 590                 if (dev->input_type[i] == type) {
 591                         if (video_is_registered(&dev->vid_cap_dev) && dev->has_vid_cap)
 592                                 v4l2_event_queue(&dev->vid_cap_dev, &ev);
 593                         if (video_is_registered(&dev->vbi_cap_dev) && dev->has_vbi_cap)
 594                                 v4l2_event_queue(&dev->vbi_cap_dev, &ev);
 595                 }
 596         }
 597 }
 598
 599 /*
 600  * Conversion function that converts a single-planar format to a
 601  * single-plane multiplanar format.
 602  */
 603 void fmt_sp2mp(const struct v4l2_format *sp_fmt, struct v4l2_format *mp_fmt)
 604 {
 605         struct v4l2_pix_format_mplane *mp = &mp_fmt->fmt.pix_mp;
 606         struct v4l2_plane_pix_format *ppix = &mp->plane_fmt[0];
 607         const struct v4l2_pix_format *pix = &sp_fmt->fmt.pix;
 608         bool is_out = sp_fmt->type == V4L2_BUF_TYPE_VIDEO_OUTPUT;
 609
 610         memset(mp->reserved, 0, sizeof(mp->reserved));
 611         mp_fmt->type = is_out ? V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE :
 612                            V4L2_CAP_VIDEO_CAPTURE_MPLANE;
 613         mp->width = pix->width;
 614         mp->height = pix->height;
 615         mp->pixelformat = pix->pixelformat;
 616         mp->field = pix->field;
 617         mp->colorspace = pix->colorspace;
 618         mp->xfer_func = pix->xfer_func;
 619         mp->ycbcr_enc = pix->ycbcr_enc;
 620         mp->quantization = pix->quantization;
 621         mp->num_planes = 1;
 622         mp->flags = pix->flags;
 623         ppix->sizeimage = pix->sizeimage;
 624         ppix->bytesperline = pix->bytesperline;
 625         memset(ppix->reserved, 0, sizeof(ppix->reserved));
 626 }
 627
 628 int fmt_sp2mp_func(struct file *file, void *priv,
 629                 struct v4l2_format *f, fmtfunc func)
 630 {
 631         struct v4l2_format fmt;
 632         struct v4l2_pix_format_mplane *mp = &fmt.fmt.pix_mp;
 633         struct v4l2_plane_pix_format *ppix = &mp->plane_fmt[0];
 634         struct v4l2_pix_format *pix = &f->fmt.pix;
 635         int ret;
 636
 637         /* Converts to a mplane format */
 638         fmt_sp2mp(f, &fmt);
 639         /* Passes it to the generic mplane format function */
 640         ret = func(file, priv, &fmt);
 641         /* Copies back the mplane data to the single plane format */
 642         pix->width = mp->width;
 643         pix->height = mp->height;
 644         pix->pixelformat = mp->pixelformat;
 645         pix->field = mp->field;
 646         pix->colorspace = mp->colorspace;
 647         pix->xfer_func = mp->xfer_func;
 648         pix->ycbcr_enc = mp->ycbcr_enc;
 649         pix->quantization = mp->quantization;
 650         pix->sizeimage = ppix->sizeimage;
 651         pix->bytesperline = ppix->bytesperline;
 652         pix->flags = mp->flags;
 653         return ret;
 654 }
 655
 656 /* v4l2_rect helper function: copy the width/height values */
 657 void rect_set_size_to(struct v4l2_rect *r, const struct v4l2_rect *size)
 658 {
 659         r->width = size->width;
 660         r->height = size->height;
 661 }
 662
 663 /* v4l2_rect helper function: width and height of r should be >= min_size */
 664 void rect_set_min_size(struct v4l2_rect *r, const struct v4l2_rect *min_size)
 665 {
 666         if (r->width < min_size->width)
 667                 r->width = min_size->width;
 668         if (r->height < min_size->height)
 669                 r->height = min_size->height;
 670 }
 671
 672 /* v4l2_rect helper function: width and height of r should be <= max_size */
 673 void rect_set_max_size(struct v4l2_rect *r, const struct v4l2_rect *max_size)
 674 {
 675         if (r->width > max_size->width)
 676                 r->width = max_size->width;
 677         if (r->height > max_size->height)
 678                 r->height = max_size->height;
 679 }
 680
 681 /* v4l2_rect helper function: r should be inside boundary */
 682 void rect_map_inside(struct v4l2_rect *r, const struct v4l2_rect *boundary)
 683 {
 684         rect_set_max_size(r, boundary);
 685         if (r->left < boundary->left)
 686                 r->left = boundary->left;
 687         if (r->top < boundary->top)
 688                 r->top = boundary->top;
 689         if (r->left + r->width > boundary->width)
 690                 r->left = boundary->width - r->width;
 691         if (r->top + r->height > boundary->height)
 692                 r->top = boundary->height - r->height;
 693 }
 694
 695 /* v4l2_rect helper function: return true if r1 has the same size as r2 */
 696 bool rect_same_size(const struct v4l2_rect *r1, const struct v4l2_rect *r2)
 697 {
 698         return r1->width == r2->width && r1->height == r2->height;
 699 }
 700
 701 /* v4l2_rect helper function: calculate the intersection of two rects */
 702 struct v4l2_rect rect_intersect(const struct v4l2_rect *a, const struct v4l2_rect *b)
 703 {
 704         struct v4l2_rect r;
 705         int right, bottom;
 706
 707         r.top = max(a->top, b->top);
 708         r.left = max(a->left, b->left);
 709         bottom = min(a->top + a->height, b->top + b->height);
 710         right = min(a->left + a->width, b->left + b->width);
 711         r.height = max(0, bottom - r.top);
 712         r.width = max(0, right - r.left);
 713         return r;
 714 }
 715
 716 /*
 717  * v4l2_rect helper function: scale rect r by to->width / from->width and
 718  * to->height / from->height.
 719  */
 720 void rect_scale(struct v4l2_rect *r, const struct v4l2_rect *from,
 721                                      const struct v4l2_rect *to)
 722 {
 723         if (from->width == 0 || from->height == 0) {
 724                 r->left = r->top = r->width = r->height = 0;
 725                 return;
 726         }
 727         r->left = (((r->left - from->left) * to->width) / from->width) & ~1;
 728         r->width = ((r->width * to->width) / from->width) & ~1;
 729         r->top = ((r->top - from->top) * to->height) / from->height;
 730         r->height = (r->height * to->height) / from->height;
 731 }
 732
 733 bool rect_overlap(const struct v4l2_rect *r1, const struct v4l2_rect *r2)
 734 {
 735         /*
 736          * IF the left side of r1 is to the right of the right side of r2 OR
 737          *    the left side of r2 is to the right of the right side of r1 THEN
 738          * they do not overlap.
 739          */
 740         if (r1->left >= r2->left + r2->width ||
 741             r2->left >= r1->left + r1->width)
 742                 return false;
 743         /*
 744          * IF the top side of r1 is below the bottom of r2 OR
 745          *    the top side of r2 is below the bottom of r1 THEN
 746          * they do not overlap.
 747          */
 748         if (r1->top >= r2->top + r2->height ||
 749             r2->top >= r1->top + r1->height)
 750                 return false;
 751         return true;
 752 }
 753 int vivid_vid_adjust_sel(unsigned flags, struct v4l2_rect *r)
 754 {
 755         unsigned w = r->width;
 756         unsigned h = r->height;
 757
 758         /* sanitize w and h in case someone passes ~0 as the value */
 759         w &= 0xffff;
 760         h &= 0xffff;
 761         if (!(flags & V4L2_SEL_FLAG_LE)) {
 762                 w++;
 763                 h++;
 764                 if (w < 2)
 765                         w = 2;
 766                 if (h < 2)
 767                         h = 2;
 768         }
 769         if (!(flags & V4L2_SEL_FLAG_GE)) {
 770                 if (w > MAX_WIDTH)
 771                         w = MAX_WIDTH;
 772                 if (h > MAX_HEIGHT)
 773                         h = MAX_HEIGHT;
 774         }
 775         w = w & ~1;
 776         h = h & ~1;
 777         if (w < 2 || h < 2)
 778                 return -ERANGE;
 779         if (w > MAX_WIDTH || h > MAX_HEIGHT)
 780                 return -ERANGE;
 781         if (r->top < 0)
 782                 r->top = 0;
 783         if (r->left < 0)
 784                 r->left = 0;
 785         /* sanitize left and top in case someone passes ~0 as the value */
 786         r->left &= 0xfffe;
 787         r->top &= 0xfffe;
 788         if (r->left + w > MAX_WIDTH)
 789                 r->left = MAX_WIDTH - w;
 790         if (r->top + h > MAX_HEIGHT)
 791                 r->top = MAX_HEIGHT - h;
 792         if ((flags & (V4L2_SEL_FLAG_GE | V4L2_SEL_FLAG_LE)) ==
 793                         (V4L2_SEL_FLAG_GE | V4L2_SEL_FLAG_LE) &&
 794             (r->width != w || r->height != h))
 795                 return -ERANGE;
 796         r->width = w;
 797         r->height = h;
 798         return 0;
 799 }
 800
 801 int vivid_enum_fmt_vid(struct file *file, void  *priv,
 802                                         struct v4l2_fmtdesc *f)
 803 {
 804         struct vivid_dev *dev = video_drvdata(file);
 805         const struct vivid_fmt *fmt;
 806
 807         if (f->index >= ARRAY_SIZE(vivid_formats) -
 808             (dev->multiplanar ? 0 : VIVID_MPLANAR_FORMATS))
 809                 return -EINVAL;
 810
 811         fmt = &vivid_formats[f->index];
 812
 813         f->pixelformat = fmt->fourcc;
 814         return 0;
 815 }
 816
 817 int vidioc_enum_fmt_vid_mplane(struct file *file, void  *priv,
 818                                         struct v4l2_fmtdesc *f)
 819 {
 820         struct vivid_dev *dev = video_drvdata(file);
 821
 822         if (!dev->multiplanar)
 823                 return -ENOTTY;
 824         return vivid_enum_fmt_vid(file, priv, f);
 825 }
 826
 827 int vidioc_enum_fmt_vid(struct file *file, void  *priv,
 828                                         struct v4l2_fmtdesc *f)
 829 {
 830         struct vivid_dev *dev = video_drvdata(file);
 831
 832         if (dev->multiplanar)
 833                 return -ENOTTY;
 834         return vivid_enum_fmt_vid(file, priv, f);
 835 }
 836
 837 int vidioc_g_std(struct file *file, void *priv, v4l2_std_id *id)
 838 {
 839         struct vivid_dev *dev = video_drvdata(file);
 840         struct video_device *vdev = video_devdata(file);
 841
 842         if (vdev->vfl_dir == VFL_DIR_RX) {
 843                 if (!vivid_is_sdtv_cap(dev))
 844                         return -ENODATA;
 845                 *id = dev->std_cap;
 846         } else {
 847                 if (!vivid_is_svid_out(dev))
 848                         return -ENODATA;
 849                 *id = dev->std_out;
 850         }
 851         return 0;
 852 }
 853
 854 int vidioc_g_dv_timings(struct file *file, void *_fh,
 855                                     struct v4l2_dv_timings *timings)
 856 {
 857         struct vivid_dev *dev = video_drvdata(file);
 858         struct video_device *vdev = video_devdata(file);
 859
 860         if (vdev->vfl_dir == VFL_DIR_RX) {
 861                 if (!vivid_is_hdmi_cap(dev))
 862                         return -ENODATA;
 863                 *timings = dev->dv_timings_cap;
 864         } else {
 865                 if (!vivid_is_hdmi_out(dev))
 866                         return -ENODATA;
 867                 *timings = dev->dv_timings_out;
 868         }
 869         return 0;
 870 }
 871
 872 int vidioc_enum_dv_timings(struct file *file, void *_fh,
 873                                     struct v4l2_enum_dv_timings *timings)
 874 {
 875         struct vivid_dev *dev = video_drvdata(file);
 876         struct video_device *vdev = video_devdata(file);
 877
 878         if (vdev->vfl_dir == VFL_DIR_RX) {
 879                 if (!vivid_is_hdmi_cap(dev))
 880                         return -ENODATA;
 881         } else {
 882                 if (!vivid_is_hdmi_out(dev))
 883                         return -ENODATA;
 884         }
 885         return v4l2_enum_dv_timings_cap(timings, &vivid_dv_timings_cap,
 886                         NULL, NULL);
 887 }
 888
 889 int vidioc_dv_timings_cap(struct file *file, void *_fh,
 890                                     struct v4l2_dv_timings_cap *cap)
 891 {
 892         struct vivid_dev *dev = video_drvdata(file);
 893         struct video_device *vdev = video_devdata(file);
 894
 895         if (vdev->vfl_dir == VFL_DIR_RX) {
 896                 if (!vivid_is_hdmi_cap(dev))
 897                         return -ENODATA;
 898         } else {
 899                 if (!vivid_is_hdmi_out(dev))
 900                         return -ENODATA;
 901         }
 902         *cap = vivid_dv_timings_cap;
 903         return 0;
 904 }
 905
 906 int vidioc_g_edid(struct file *file, void *_fh,
 907                          struct v4l2_edid *edid)
 908 {
 909         struct vivid_dev *dev = video_drvdata(file);
 910         struct video_device *vdev = video_devdata(file);
 911
 912         memset(edid->reserved, 0, sizeof(edid->reserved));
 913         if (vdev->vfl_dir == VFL_DIR_RX) {
 914                 if (edid->pad >= dev->num_inputs)
 915                         return -EINVAL;
 916                 if (dev->input_type[edid->pad] != HDMI)
 917                         return -EINVAL;
 918         } else {
 919                 if (edid->pad >= dev->num_outputs)
 920                         return -EINVAL;
 921                 if (dev->output_type[edid->pad] != HDMI)
 922                         return -EINVAL;
 923         }
 924         if (edid->start_block == 0 && edid->blocks == 0) {
 925                 edid->blocks = dev->edid_blocks;
 926                 return 0;
 927         }
 928         if (dev->edid_blocks == 0)
 929                 return -ENODATA;
 930         if (edid->start_block >= dev->edid_blocks)
 931                 return -EINVAL;
 932         if (edid->start_block + edid->blocks > dev->edid_blocks)
 933                 edid->blocks = dev->edid_blocks - edid->start_block;
 934         memcpy(edid->edid, dev->edid, edid->blocks * 128);
 935         return 0;
 936 }