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                 .fourcc   = V4L2_PIX_FMT_NV16M,
 450                 .vdownsampling = { 1, 1 },
 451                 .bit_depth = { 8, 8 },
 452                 .is_yuv   = true,
 453                 .planes   = 2,
 454                 .buffers = 2,
 455                 .data_offset = { PLANE0_DATA_OFFSET, 0 },
 456         },
 457         {
 458                 .fourcc   = V4L2_PIX_FMT_NV61M,
 459                 .vdownsampling = { 1, 1 },
 460                 .bit_depth = { 8, 8 },
 461                 .is_yuv   = true,
 462                 .planes   = 2,
 463                 .buffers = 2,
 464                 .data_offset = { 0, PLANE0_DATA_OFFSET },
 465         },
 466         {
 467                 .fourcc   = V4L2_PIX_FMT_YUV420M,
 468                 .vdownsampling = { 1, 2, 2 },
 469                 .bit_depth = { 8, 4, 4 },
 470                 .is_yuv   = true,
 471                 .planes   = 3,
 472                 .buffers = 3,
 473         },
 474         {
 475                 .fourcc   = V4L2_PIX_FMT_YVU420M,
 476                 .vdownsampling = { 1, 2, 2 },
 477                 .bit_depth = { 8, 4, 4 },
 478                 .is_yuv   = true,
 479                 .planes   = 3,
 480                 .buffers = 3,
 481         },
 482         {
 483                 .fourcc   = V4L2_PIX_FMT_NV12M,
 484                 .vdownsampling = { 1, 2 },
 485                 .bit_depth = { 8, 8 },
 486                 .is_yuv   = true,
 487                 .planes   = 2,
 488                 .buffers = 2,
 489         },
 490         {
 491                 .fourcc   = V4L2_PIX_FMT_NV21M,
 492                 .vdownsampling = { 1, 2 },
 493                 .bit_depth = { 8, 8 },
 494                 .is_yuv   = true,
 495                 .planes   = 2,
 496                 .buffers = 2,
 497         },
 498 };
 499
 500 /* There are 6 multiplanar formats in the list */
 501 #define VIVID_MPLANAR_FORMATS 6
 502
 503 const struct vivid_fmt *vivid_get_format(struct vivid_dev *dev, u32 pixelformat)
 504 {
 505         const struct vivid_fmt *fmt;
 506         unsigned k;
 507
 508         for (k = 0; k < ARRAY_SIZE(vivid_formats); k++) {
 509                 fmt = &vivid_formats[k];
 510                 if (fmt->fourcc == pixelformat)
 511                         if (fmt->buffers == 1 || dev->multiplanar)
 512                                 return fmt;
 513         }
 514
 515         return NULL;
 516 }
 517
 518 bool vivid_vid_can_loop(struct vivid_dev *dev)
 519 {
 520         if (dev->src_rect.width != dev->sink_rect.width ||
 521             dev->src_rect.height != dev->sink_rect.height)
 522                 return false;
 523         if (dev->fmt_cap->fourcc != dev->fmt_out->fourcc)
 524                 return false;
 525         if (dev->field_cap != dev->field_out)
 526                 return false;
 527         /*
 528          * While this can be supported, it is just too much work
 529          * to actually implement.
 530          */
 531         if (dev->field_cap == V4L2_FIELD_SEQ_TB ||
 532             dev->field_cap == V4L2_FIELD_SEQ_BT)
 533                 return false;
 534         if (vivid_is_svid_cap(dev) && vivid_is_svid_out(dev)) {
 535                 if (!(dev->std_cap & V4L2_STD_525_60) !=
 536                     !(dev->std_out & V4L2_STD_525_60))
 537                         return false;
 538                 return true;
 539         }
 540         if (vivid_is_hdmi_cap(dev) && vivid_is_hdmi_out(dev))
 541                 return true;
 542         return false;
 543 }
 544
 545 void vivid_send_source_change(struct vivid_dev *dev, unsigned type)
 546 {
 547         struct v4l2_event ev = {
 548                 .type = V4L2_EVENT_SOURCE_CHANGE,
 549                 .u.src_change.changes = V4L2_EVENT_SRC_CH_RESOLUTION,
 550         };
 551         unsigned i;
 552
 553         for (i = 0; i < dev->num_inputs; i++) {
 554                 ev.id = i;
 555                 if (dev->input_type[i] == type) {
 556                         if (video_is_registered(&dev->vid_cap_dev) && dev->has_vid_cap)
 557                                 v4l2_event_queue(&dev->vid_cap_dev, &ev);
 558                         if (video_is_registered(&dev->vbi_cap_dev) && dev->has_vbi_cap)
 559                                 v4l2_event_queue(&dev->vbi_cap_dev, &ev);
 560                 }
 561         }
 562 }
 563
 564 /*
 565  * Conversion function that converts a single-planar format to a
 566  * single-plane multiplanar format.
 567  */
 568 void fmt_sp2mp(const struct v4l2_format *sp_fmt, struct v4l2_format *mp_fmt)
 569 {
 570         struct v4l2_pix_format_mplane *mp = &mp_fmt->fmt.pix_mp;
 571         struct v4l2_plane_pix_format *ppix = &mp->plane_fmt[0];
 572         const struct v4l2_pix_format *pix = &sp_fmt->fmt.pix;
 573         bool is_out = sp_fmt->type == V4L2_BUF_TYPE_VIDEO_OUTPUT;
 574
 575         memset(mp->reserved, 0, sizeof(mp->reserved));
 576         mp_fmt->type = is_out ? V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE :
 577                            V4L2_CAP_VIDEO_CAPTURE_MPLANE;
 578         mp->width = pix->width;
 579         mp->height = pix->height;
 580         mp->pixelformat = pix->pixelformat;
 581         mp->field = pix->field;
 582         mp->colorspace = pix->colorspace;
 583         mp->xfer_func = pix->xfer_func;
 584         mp->ycbcr_enc = pix->ycbcr_enc;
 585         mp->quantization = pix->quantization;
 586         mp->num_planes = 1;
 587         mp->flags = pix->flags;
 588         ppix->sizeimage = pix->sizeimage;
 589         ppix->bytesperline = pix->bytesperline;
 590         memset(ppix->reserved, 0, sizeof(ppix->reserved));
 591 }
 592
 593 int fmt_sp2mp_func(struct file *file, void *priv,
 594                 struct v4l2_format *f, fmtfunc func)
 595 {
 596         struct v4l2_format fmt;
 597         struct v4l2_pix_format_mplane *mp = &fmt.fmt.pix_mp;
 598         struct v4l2_plane_pix_format *ppix = &mp->plane_fmt[0];
 599         struct v4l2_pix_format *pix = &f->fmt.pix;
 600         int ret;
 601
 602         /* Converts to a mplane format */
 603         fmt_sp2mp(f, &fmt);
 604         /* Passes it to the generic mplane format function */
 605         ret = func(file, priv, &fmt);
 606         /* Copies back the mplane data to the single plane format */
 607         pix->width = mp->width;
 608         pix->height = mp->height;
 609         pix->pixelformat = mp->pixelformat;
 610         pix->field = mp->field;
 611         pix->colorspace = mp->colorspace;
 612         pix->xfer_func = mp->xfer_func;
 613         pix->ycbcr_enc = mp->ycbcr_enc;
 614         pix->quantization = mp->quantization;
 615         pix->sizeimage = ppix->sizeimage;
 616         pix->bytesperline = ppix->bytesperline;
 617         pix->flags = mp->flags;
 618         return ret;
 619 }
 620
 621 /* v4l2_rect helper function: copy the width/height values */
 622 void rect_set_size_to(struct v4l2_rect *r, const struct v4l2_rect *size)
 623 {
 624         r->width = size->width;
 625         r->height = size->height;
 626 }
 627
 628 /* v4l2_rect helper function: width and height of r should be >= min_size */
 629 void rect_set_min_size(struct v4l2_rect *r, const struct v4l2_rect *min_size)
 630 {
 631         if (r->width < min_size->width)
 632                 r->width = min_size->width;
 633         if (r->height < min_size->height)
 634                 r->height = min_size->height;
 635 }
 636
 637 /* v4l2_rect helper function: width and height of r should be <= max_size */
 638 void rect_set_max_size(struct v4l2_rect *r, const struct v4l2_rect *max_size)
 639 {
 640         if (r->width > max_size->width)
 641                 r->width = max_size->width;
 642         if (r->height > max_size->height)
 643                 r->height = max_size->height;
 644 }
 645
 646 /* v4l2_rect helper function: r should be inside boundary */
 647 void rect_map_inside(struct v4l2_rect *r, const struct v4l2_rect *boundary)
 648 {
 649         rect_set_max_size(r, boundary);
 650         if (r->left < boundary->left)
 651                 r->left = boundary->left;
 652         if (r->top < boundary->top)
 653                 r->top = boundary->top;
 654         if (r->left + r->width > boundary->width)
 655                 r->left = boundary->width - r->width;
 656         if (r->top + r->height > boundary->height)
 657                 r->top = boundary->height - r->height;
 658 }
 659
 660 /* v4l2_rect helper function: return true if r1 has the same size as r2 */
 661 bool rect_same_size(const struct v4l2_rect *r1, const struct v4l2_rect *r2)
 662 {
 663         return r1->width == r2->width && r1->height == r2->height;
 664 }
 665
 666 /* v4l2_rect helper function: calculate the intersection of two rects */
 667 struct v4l2_rect rect_intersect(const struct v4l2_rect *a, const struct v4l2_rect *b)
 668 {
 669         struct v4l2_rect r;
 670         int right, bottom;
 671
 672         r.top = max(a->top, b->top);
 673         r.left = max(a->left, b->left);
 674         bottom = min(a->top + a->height, b->top + b->height);
 675         right = min(a->left + a->width, b->left + b->width);
 676         r.height = max(0, bottom - r.top);
 677         r.width = max(0, right - r.left);
 678         return r;
 679 }
 680
 681 /*
 682  * v4l2_rect helper function: scale rect r by to->width / from->width and
 683  * to->height / from->height.
 684  */
 685 void rect_scale(struct v4l2_rect *r, const struct v4l2_rect *from,
 686                                      const struct v4l2_rect *to)
 687 {
 688         if (from->width == 0 || from->height == 0) {
 689                 r->left = r->top = r->width = r->height = 0;
 690                 return;
 691         }
 692         r->left = (((r->left - from->left) * to->width) / from->width) & ~1;
 693         r->width = ((r->width * to->width) / from->width) & ~1;
 694         r->top = ((r->top - from->top) * to->height) / from->height;
 695         r->height = (r->height * to->height) / from->height;
 696 }
 697
 698 bool rect_overlap(const struct v4l2_rect *r1, const struct v4l2_rect *r2)
 699 {
 700         /*
 701          * IF the left side of r1 is to the right of the right side of r2 OR
 702          *    the left side of r2 is to the right of the right side of r1 THEN
 703          * they do not overlap.
 704          */
 705         if (r1->left >= r2->left + r2->width ||
 706             r2->left >= r1->left + r1->width)
 707                 return false;
 708         /*
 709          * IF the top side of r1 is below the bottom of r2 OR
 710          *    the top side of r2 is below the bottom of r1 THEN
 711          * they do not overlap.
 712          */
 713         if (r1->top >= r2->top + r2->height ||
 714             r2->top >= r1->top + r1->height)
 715                 return false;
 716         return true;
 717 }
 718 int vivid_vid_adjust_sel(unsigned flags, struct v4l2_rect *r)
 719 {
 720         unsigned w = r->width;
 721         unsigned h = r->height;
 722
 723         /* sanitize w and h in case someone passes ~0 as the value */
 724         w &= 0xffff;
 725         h &= 0xffff;
 726         if (!(flags & V4L2_SEL_FLAG_LE)) {
 727                 w++;
 728                 h++;
 729                 if (w < 2)
 730                         w = 2;
 731                 if (h < 2)
 732                         h = 2;
 733         }
 734         if (!(flags & V4L2_SEL_FLAG_GE)) {
 735                 if (w > MAX_WIDTH)
 736                         w = MAX_WIDTH;
 737                 if (h > MAX_HEIGHT)
 738                         h = MAX_HEIGHT;
 739         }
 740         w = w & ~1;
 741         h = h & ~1;
 742         if (w < 2 || h < 2)
 743                 return -ERANGE;
 744         if (w > MAX_WIDTH || h > MAX_HEIGHT)
 745                 return -ERANGE;
 746         if (r->top < 0)
 747                 r->top = 0;
 748         if (r->left < 0)
 749                 r->left = 0;
 750         /* sanitize left and top in case someone passes ~0 as the value */
 751         r->left &= 0xfffe;
 752         r->top &= 0xfffe;
 753         if (r->left + w > MAX_WIDTH)
 754                 r->left = MAX_WIDTH - w;
 755         if (r->top + h > MAX_HEIGHT)
 756                 r->top = MAX_HEIGHT - h;
 757         if ((flags & (V4L2_SEL_FLAG_GE | V4L2_SEL_FLAG_LE)) ==
 758                         (V4L2_SEL_FLAG_GE | V4L2_SEL_FLAG_LE) &&
 759             (r->width != w || r->height != h))
 760                 return -ERANGE;
 761         r->width = w;
 762         r->height = h;
 763         return 0;
 764 }
 765
 766 int vivid_enum_fmt_vid(struct file *file, void  *priv,
 767                                         struct v4l2_fmtdesc *f)
 768 {
 769         struct vivid_dev *dev = video_drvdata(file);
 770         const struct vivid_fmt *fmt;
 771
 772         if (f->index >= ARRAY_SIZE(vivid_formats) -
 773             (dev->multiplanar ? 0 : VIVID_MPLANAR_FORMATS))
 774                 return -EINVAL;
 775
 776         fmt = &vivid_formats[f->index];
 777
 778         f->pixelformat = fmt->fourcc;
 779         return 0;
 780 }
 781
 782 int vidioc_enum_fmt_vid_mplane(struct file *file, void  *priv,
 783                                         struct v4l2_fmtdesc *f)
 784 {
 785         struct vivid_dev *dev = video_drvdata(file);
 786
 787         if (!dev->multiplanar)
 788                 return -ENOTTY;
 789         return vivid_enum_fmt_vid(file, priv, f);
 790 }
 791
 792 int vidioc_enum_fmt_vid(struct file *file, void  *priv,
 793                                         struct v4l2_fmtdesc *f)
 794 {
 795         struct vivid_dev *dev = video_drvdata(file);
 796
 797         if (dev->multiplanar)
 798                 return -ENOTTY;
 799         return vivid_enum_fmt_vid(file, priv, f);
 800 }
 801
 802 int vidioc_g_std(struct file *file, void *priv, v4l2_std_id *id)
 803 {
 804         struct vivid_dev *dev = video_drvdata(file);
 805         struct video_device *vdev = video_devdata(file);
 806
 807         if (vdev->vfl_dir == VFL_DIR_RX) {
 808                 if (!vivid_is_sdtv_cap(dev))
 809                         return -ENODATA;
 810                 *id = dev->std_cap;
 811         } else {
 812                 if (!vivid_is_svid_out(dev))
 813                         return -ENODATA;
 814                 *id = dev->std_out;
 815         }
 816         return 0;
 817 }
 818
 819 int vidioc_g_dv_timings(struct file *file, void *_fh,
 820                                     struct v4l2_dv_timings *timings)
 821 {
 822         struct vivid_dev *dev = video_drvdata(file);
 823         struct video_device *vdev = video_devdata(file);
 824
 825         if (vdev->vfl_dir == VFL_DIR_RX) {
 826                 if (!vivid_is_hdmi_cap(dev))
 827                         return -ENODATA;
 828                 *timings = dev->dv_timings_cap;
 829         } else {
 830                 if (!vivid_is_hdmi_out(dev))
 831                         return -ENODATA;
 832                 *timings = dev->dv_timings_out;
 833         }
 834         return 0;
 835 }
 836
 837 int vidioc_enum_dv_timings(struct file *file, void *_fh,
 838                                     struct v4l2_enum_dv_timings *timings)
 839 {
 840         struct vivid_dev *dev = video_drvdata(file);
 841         struct video_device *vdev = video_devdata(file);
 842
 843         if (vdev->vfl_dir == VFL_DIR_RX) {
 844                 if (!vivid_is_hdmi_cap(dev))
 845                         return -ENODATA;
 846         } else {
 847                 if (!vivid_is_hdmi_out(dev))
 848                         return -ENODATA;
 849         }
 850         return v4l2_enum_dv_timings_cap(timings, &vivid_dv_timings_cap,
 851                         NULL, NULL);
 852 }
 853
 854 int vidioc_dv_timings_cap(struct file *file, void *_fh,
 855                                     struct v4l2_dv_timings_cap *cap)
 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         } else {
 864                 if (!vivid_is_hdmi_out(dev))
 865                         return -ENODATA;
 866         }
 867         *cap = vivid_dv_timings_cap;
 868         return 0;
 869 }
 870
 871 int vidioc_g_edid(struct file *file, void *_fh,
 872                          struct v4l2_edid *edid)
 873 {
 874         struct vivid_dev *dev = video_drvdata(file);
 875         struct video_device *vdev = video_devdata(file);
 876
 877         memset(edid->reserved, 0, sizeof(edid->reserved));
 878         if (vdev->vfl_dir == VFL_DIR_RX) {
 879                 if (edid->pad >= dev->num_inputs)
 880                         return -EINVAL;
 881                 if (dev->input_type[edid->pad] != HDMI)
 882                         return -EINVAL;
 883         } else {
 884                 if (edid->pad >= dev->num_outputs)
 885                         return -EINVAL;
 886                 if (dev->output_type[edid->pad] != HDMI)
 887                         return -EINVAL;
 888         }
 889         if (edid->start_block == 0 && edid->blocks == 0) {
 890                 edid->blocks = dev->edid_blocks;
 891                 return 0;
 892         }
 893         if (dev->edid_blocks == 0)
 894                 return -ENODATA;
 895         if (edid->start_block >= dev->edid_blocks)
 896                 return -EINVAL;
 897         if (edid->start_block + edid->blocks > dev->edid_blocks)
 898                 edid->blocks = dev->edid_blocks - edid->start_block;
 899         memcpy(edid->edid, dev->edid, edid->blocks * 128);
 900         return 0;
 901 }