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

   1 /*
   2  * vivid-vid-cap.c - video capture 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/vmalloc.h>
  24 #include <linux/videodev2.h>
  25 #include <linux/v4l2-dv-timings.h>
  26 #include <media/v4l2-common.h>
  27 #include <media/v4l2-event.h>
  28 #include <media/v4l2-dv-timings.h>
  29 #include <media/v4l2-rect.h>
  30
  31 #include "vivid-core.h"
  32 #include "vivid-vid-common.h"
  33 #include "vivid-kthread-cap.h"
  34 #include "vivid-vid-cap.h"
  35
  36 /* timeperframe: min/max and default */
  37 static const struct v4l2_fract
  38         tpf_min     = {.numerator = 1,          .denominator = FPS_MAX},
  39         tpf_max     = {.numerator = FPS_MAX,    .denominator = 1};
  40
  41 static const struct vivid_fmt formats_ovl[] = {
  42         {
  43                 .fourcc   = V4L2_PIX_FMT_RGB565, /* gggbbbbb rrrrrggg */
  44                 .vdownsampling = { 1 },
  45                 .bit_depth = { 16 },
  46                 .planes   = 1,
  47                 .buffers = 1,
  48         },
  49         {
  50                 .fourcc   = V4L2_PIX_FMT_XRGB555, /* gggbbbbb arrrrrgg */
  51                 .vdownsampling = { 1 },
  52                 .bit_depth = { 16 },
  53                 .planes   = 1,
  54                 .buffers = 1,
  55         },
  56         {
  57                 .fourcc   = V4L2_PIX_FMT_ARGB555, /* gggbbbbb arrrrrgg */
  58                 .vdownsampling = { 1 },
  59                 .bit_depth = { 16 },
  60                 .planes   = 1,
  61                 .buffers = 1,
  62         },
  63 };
  64
  65 /* The number of discrete webcam framesizes */
  66 #define VIVID_WEBCAM_SIZES 4
  67 /* The number of discrete webcam frameintervals */
  68 #define VIVID_WEBCAM_IVALS (VIVID_WEBCAM_SIZES * 2)
  69
  70 /* Sizes must be in increasing order */
  71 static const struct v4l2_frmsize_discrete webcam_sizes[VIVID_WEBCAM_SIZES] = {
  72         {  320, 180 },
  73         {  640, 360 },
  74         { 1280, 720 },
  75         { 1920, 1080 },
  76 };
  77
  78 /*
  79  * Intervals must be in increasing order and there must be twice as many
  80  * elements in this array as there are in webcam_sizes.
  81  */
  82 static const struct v4l2_fract webcam_intervals[VIVID_WEBCAM_IVALS] = {
  83         {  1, 2 },
  84         {  1, 5 },
  85         {  1, 10 },
  86         {  1, 15 },
  87         {  1, 25 },
  88         {  1, 30 },
  89         {  1, 50 },
  90         {  1, 60 },
  91 };
  92
  93 static const struct v4l2_discrete_probe webcam_probe = {
  94         webcam_sizes,
  95         VIVID_WEBCAM_SIZES
  96 };
  97
  98 static int vid_cap_queue_setup(struct vb2_queue *vq,
  99                        unsigned *nbuffers, unsigned *nplanes,
 100                        unsigned sizes[], struct device *alloc_devs[])
 101 {
 102         struct vivid_dev *dev = vb2_get_drv_priv(vq);
 103         unsigned buffers = tpg_g_buffers(&dev->tpg);
 104         unsigned h = dev->fmt_cap_rect.height;
 105         unsigned p;
 106
 107         if (dev->field_cap == V4L2_FIELD_ALTERNATE) {
 108                 /*
 109                  * You cannot use read() with FIELD_ALTERNATE since the field
 110                  * information (TOP/BOTTOM) cannot be passed back to the user.
 111                  */
 112                 if (vb2_fileio_is_active(vq))
 113                         return -EINVAL;
 114         }
 115
 116         if (dev->queue_setup_error) {
 117                 /*
 118                  * Error injection: test what happens if queue_setup() returns
 119                  * an error.
 120                  */
 121                 dev->queue_setup_error = false;
 122                 return -EINVAL;
 123         }
 124         if (*nplanes) {
 125                 /*
 126                  * Check if the number of requested planes match
 127                  * the number of buffers in the current format. You can't mix that.
 128                  */
 129                 if (*nplanes != buffers)
 130                         return -EINVAL;
 131                 for (p = 0; p < buffers; p++) {
 132                         if (sizes[p] < tpg_g_line_width(&dev->tpg, p) * h +
 133                                                 dev->fmt_cap->data_offset[p])
 134                                 return -EINVAL;
 135                 }
 136         } else {
 137                 for (p = 0; p < buffers; p++)
 138                         sizes[p] = tpg_g_line_width(&dev->tpg, p) * h +
 139                                         dev->fmt_cap->data_offset[p];
 140         }
 141
 142         if (vq->num_buffers + *nbuffers < 2)
 143                 *nbuffers = 2 - vq->num_buffers;
 144
 145         *nplanes = buffers;
 146
 147         dprintk(dev, 1, "%s: count=%d\n", __func__, *nbuffers);
 148         for (p = 0; p < buffers; p++)
 149                 dprintk(dev, 1, "%s: size[%u]=%u\n", __func__, p, sizes[p]);
 150
 151         return 0;
 152 }
 153
 154 static int vid_cap_buf_prepare(struct vb2_buffer *vb)
 155 {
 156         struct vivid_dev *dev = vb2_get_drv_priv(vb->vb2_queue);
 157         unsigned long size;
 158         unsigned buffers = tpg_g_buffers(&dev->tpg);
 159         unsigned p;
 160
 161         dprintk(dev, 1, "%s\n", __func__);
 162
 163         if (WARN_ON(NULL == dev->fmt_cap))
 164                 return -EINVAL;
 165
 166         if (dev->buf_prepare_error) {
 167                 /*
 168                  * Error injection: test what happens if buf_prepare() returns
 169                  * an error.
 170                  */
 171                 dev->buf_prepare_error = false;
 172                 return -EINVAL;
 173         }
 174         for (p = 0; p < buffers; p++) {
 175                 size = tpg_g_line_width(&dev->tpg, p) * dev->fmt_cap_rect.height +
 176                         dev->fmt_cap->data_offset[p];
 177
 178                 if (vb2_plane_size(vb, p) < size) {
 179                         dprintk(dev, 1, "%s data will not fit into plane %u (%lu < %lu)\n",
 180                                         __func__, p, vb2_plane_size(vb, p), size);
 181                         return -EINVAL;
 182                 }
 183
 184                 vb2_set_plane_payload(vb, p, size);
 185                 vb->planes[p].data_offset = dev->fmt_cap->data_offset[p];
 186         }
 187
 188         return 0;
 189 }
 190
 191 static void vid_cap_buf_finish(struct vb2_buffer *vb)
 192 {
 193         struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
 194         struct vivid_dev *dev = vb2_get_drv_priv(vb->vb2_queue);
 195         struct v4l2_timecode *tc = &vbuf->timecode;
 196         unsigned fps = 25;
 197         unsigned seq = vbuf->sequence;
 198
 199         if (!vivid_is_sdtv_cap(dev))
 200                 return;
 201
 202         /*
 203          * Set the timecode. Rarely used, so it is interesting to
 204          * test this.
 205          */
 206         vbuf->flags |= V4L2_BUF_FLAG_TIMECODE;
 207         if (dev->std_cap & V4L2_STD_525_60)
 208                 fps = 30;
 209         tc->type = (fps == 30) ? V4L2_TC_TYPE_30FPS : V4L2_TC_TYPE_25FPS;
 210         tc->flags = 0;
 211         tc->frames = seq % fps;
 212         tc->seconds = (seq / fps) % 60;
 213         tc->minutes = (seq / (60 * fps)) % 60;
 214         tc->hours = (seq / (60 * 60 * fps)) % 24;
 215 }
 216
 217 static void vid_cap_buf_queue(struct vb2_buffer *vb)
 218 {
 219         struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
 220         struct vivid_dev *dev = vb2_get_drv_priv(vb->vb2_queue);
 221         struct vivid_buffer *buf = container_of(vbuf, struct vivid_buffer, vb);
 222
 223         dprintk(dev, 1, "%s\n", __func__);
 224
 225         spin_lock(&dev->slock);
 226         list_add_tail(&buf->list, &dev->vid_cap_active);
 227         spin_unlock(&dev->slock);
 228 }
 229
 230 static int vid_cap_start_streaming(struct vb2_queue *vq, unsigned count)
 231 {
 232         struct vivid_dev *dev = vb2_get_drv_priv(vq);
 233         unsigned i;
 234         int err;
 235
 236         if (vb2_is_streaming(&dev->vb_vid_out_q))
 237                 dev->can_loop_video = vivid_vid_can_loop(dev);
 238
 239         if (dev->kthread_vid_cap)
 240                 return 0;
 241
 242         dev->vid_cap_seq_count = 0;
 243         dprintk(dev, 1, "%s\n", __func__);
 244         for (i = 0; i < VIDEO_MAX_FRAME; i++)
 245                 dev->must_blank[i] = tpg_g_perc_fill(&dev->tpg) < 100;
 246         if (dev->start_streaming_error) {
 247                 dev->start_streaming_error = false;
 248                 err = -EINVAL;
 249         } else {
 250                 err = vivid_start_generating_vid_cap(dev, &dev->vid_cap_streaming);
 251         }
 252         if (err) {
 253                 struct vivid_buffer *buf, *tmp;
 254
 255                 list_for_each_entry_safe(buf, tmp, &dev->vid_cap_active, list) {
 256                         list_del(&buf->list);
 257                         vb2_buffer_done(&buf->vb.vb2_buf,
 258                                         VB2_BUF_STATE_QUEUED);
 259                 }
 260         }
 261         return err;
 262 }
 263
 264 /* abort streaming and wait for last buffer */
 265 static void vid_cap_stop_streaming(struct vb2_queue *vq)
 266 {
 267         struct vivid_dev *dev = vb2_get_drv_priv(vq);
 268
 269         dprintk(dev, 1, "%s\n", __func__);
 270         vivid_stop_generating_vid_cap(dev, &dev->vid_cap_streaming);
 271         dev->can_loop_video = false;
 272 }
 273
 274 const struct vb2_ops vivid_vid_cap_qops = {
 275         .queue_setup            = vid_cap_queue_setup,
 276         .buf_prepare            = vid_cap_buf_prepare,
 277         .buf_finish             = vid_cap_buf_finish,
 278         .buf_queue              = vid_cap_buf_queue,
 279         .start_streaming        = vid_cap_start_streaming,
 280         .stop_streaming         = vid_cap_stop_streaming,
 281         .wait_prepare           = vb2_ops_wait_prepare,
 282         .wait_finish            = vb2_ops_wait_finish,
 283 };
 284
 285 /*
 286  * Determine the 'picture' quality based on the current TV frequency: either
 287  * COLOR for a good 'signal', GRAY (grayscale picture) for a slightly off
 288  * signal or NOISE for no signal.
 289  */
 290 void vivid_update_quality(struct vivid_dev *dev)
 291 {
 292         unsigned freq_modulus;
 293
 294         if (dev->loop_video && (vivid_is_svid_cap(dev) || vivid_is_hdmi_cap(dev))) {
 295                 /*
 296                  * The 'noise' will only be replaced by the actual video
 297                  * if the output video matches the input video settings.
 298                  */
 299                 tpg_s_quality(&dev->tpg, TPG_QUAL_NOISE, 0);
 300                 return;
 301         }
 302         if (vivid_is_hdmi_cap(dev) && VIVID_INVALID_SIGNAL(dev->dv_timings_signal_mode)) {
 303                 tpg_s_quality(&dev->tpg, TPG_QUAL_NOISE, 0);
 304                 return;
 305         }
 306         if (vivid_is_sdtv_cap(dev) && VIVID_INVALID_SIGNAL(dev->std_signal_mode)) {
 307                 tpg_s_quality(&dev->tpg, TPG_QUAL_NOISE, 0);
 308                 return;
 309         }
 310         if (!vivid_is_tv_cap(dev)) {
 311                 tpg_s_quality(&dev->tpg, TPG_QUAL_COLOR, 0);
 312                 return;
 313         }
 314
 315         /*
 316          * There is a fake channel every 6 MHz at 49.25, 55.25, etc.
 317          * From +/- 0.25 MHz around the channel there is color, and from
 318          * +/- 1 MHz there is grayscale (chroma is lost).
 319          * Everywhere else it is just noise.
 320          */
 321         freq_modulus = (dev->tv_freq - 676 /* (43.25-1) * 16 */) % (6 * 16);
 322         if (freq_modulus > 2 * 16) {
 323                 tpg_s_quality(&dev->tpg, TPG_QUAL_NOISE,
 324                         next_pseudo_random32(dev->tv_freq ^ 0x55) & 0x3f);
 325                 return;
 326         }
 327         if (freq_modulus < 12 /*0.75 * 16*/ || freq_modulus > 20 /*1.25 * 16*/)
 328                 tpg_s_quality(&dev->tpg, TPG_QUAL_GRAY, 0);
 329         else
 330                 tpg_s_quality(&dev->tpg, TPG_QUAL_COLOR, 0);
 331 }
 332
 333 /*
 334  * Get the current picture quality and the associated afc value.
 335  */
 336 static enum tpg_quality vivid_get_quality(struct vivid_dev *dev, s32 *afc)
 337 {
 338         unsigned freq_modulus;
 339
 340         if (afc)
 341                 *afc = 0;
 342         if (tpg_g_quality(&dev->tpg) == TPG_QUAL_COLOR ||
 343             tpg_g_quality(&dev->tpg) == TPG_QUAL_NOISE)
 344                 return tpg_g_quality(&dev->tpg);
 345
 346         /*
 347          * There is a fake channel every 6 MHz at 49.25, 55.25, etc.
 348          * From +/- 0.25 MHz around the channel there is color, and from
 349          * +/- 1 MHz there is grayscale (chroma is lost).
 350          * Everywhere else it is just gray.
 351          */
 352         freq_modulus = (dev->tv_freq - 676 /* (43.25-1) * 16 */) % (6 * 16);
 353         if (afc)
 354                 *afc = freq_modulus - 1 * 16;
 355         return TPG_QUAL_GRAY;
 356 }
 357
 358 enum tpg_video_aspect vivid_get_video_aspect(const struct vivid_dev *dev)
 359 {
 360         if (vivid_is_sdtv_cap(dev))
 361                 return dev->std_aspect_ratio;
 362
 363         if (vivid_is_hdmi_cap(dev))
 364                 return dev->dv_timings_aspect_ratio;
 365
 366         return TPG_VIDEO_ASPECT_IMAGE;
 367 }
 368
 369 static enum tpg_pixel_aspect vivid_get_pixel_aspect(const struct vivid_dev *dev)
 370 {
 371         if (vivid_is_sdtv_cap(dev))
 372                 return (dev->std_cap & V4L2_STD_525_60) ?
 373                         TPG_PIXEL_ASPECT_NTSC : TPG_PIXEL_ASPECT_PAL;
 374
 375         if (vivid_is_hdmi_cap(dev) &&
 376             dev->src_rect.width == 720 && dev->src_rect.height <= 576)
 377                 return dev->src_rect.height == 480 ?
 378                         TPG_PIXEL_ASPECT_NTSC : TPG_PIXEL_ASPECT_PAL;
 379
 380         return TPG_PIXEL_ASPECT_SQUARE;
 381 }
 382
 383 /*
 384  * Called whenever the format has to be reset which can occur when
 385  * changing inputs, standard, timings, etc.
 386  */
 387 void vivid_update_format_cap(struct vivid_dev *dev, bool keep_controls)
 388 {
 389         struct v4l2_bt_timings *bt = &dev->dv_timings_cap.bt;
 390         unsigned size;
 391         u64 pixelclock;
 392
 393         switch (dev->input_type[dev->input]) {
 394         case WEBCAM:
 395         default:
 396                 dev->src_rect.width = webcam_sizes[dev->webcam_size_idx].width;
 397                 dev->src_rect.height = webcam_sizes[dev->webcam_size_idx].height;
 398                 dev->timeperframe_vid_cap = webcam_intervals[dev->webcam_ival_idx];
 399                 dev->field_cap = V4L2_FIELD_NONE;
 400                 tpg_s_rgb_range(&dev->tpg, V4L2_DV_RGB_RANGE_AUTO);
 401                 break;
 402         case TV:
 403         case SVID:
 404                 dev->field_cap = dev->tv_field_cap;
 405                 dev->src_rect.width = 720;
 406                 if (dev->std_cap & V4L2_STD_525_60) {
 407                         dev->src_rect.height = 480;
 408                         dev->timeperframe_vid_cap = (struct v4l2_fract) { 1001, 30000 };
 409                         dev->service_set_cap = V4L2_SLICED_CAPTION_525;
 410                 } else {
 411                         dev->src_rect.height = 576;
 412                         dev->timeperframe_vid_cap = (struct v4l2_fract) { 1000, 25000 };
 413                         dev->service_set_cap = V4L2_SLICED_WSS_625 | V4L2_SLICED_TELETEXT_B;
 414                 }
 415                 tpg_s_rgb_range(&dev->tpg, V4L2_DV_RGB_RANGE_AUTO);
 416                 break;
 417         case HDMI:
 418                 dev->src_rect.width = bt->width;
 419                 dev->src_rect.height = bt->height;
 420                 size = V4L2_DV_BT_FRAME_WIDTH(bt) * V4L2_DV_BT_FRAME_HEIGHT(bt);
 421                 if (dev->reduced_fps && can_reduce_fps(bt)) {
 422                         pixelclock = div_u64(bt->pixelclock * 1000, 1001);
 423                         bt->flags |= V4L2_DV_FL_REDUCED_FPS;
 424                 } else {
 425                         pixelclock = bt->pixelclock;
 426                         bt->flags &= ~V4L2_DV_FL_REDUCED_FPS;
 427                 }
 428                 dev->timeperframe_vid_cap = (struct v4l2_fract) {
 429                         size / 100, (u32)pixelclock / 100
 430                 };
 431                 if (bt->interlaced)
 432                         dev->field_cap = V4L2_FIELD_ALTERNATE;
 433                 else
 434                         dev->field_cap = V4L2_FIELD_NONE;
 435
 436                 /*
 437                  * We can be called from within s_ctrl, in that case we can't
 438                  * set/get controls. Luckily we don't need to in that case.
 439                  */
 440                 if (keep_controls || !dev->colorspace)
 441                         break;
 442                 if (bt->flags & V4L2_DV_FL_IS_CE_VIDEO) {
 443                         if (bt->width == 720 && bt->height <= 576)
 444                                 v4l2_ctrl_s_ctrl(dev->colorspace, VIVID_CS_170M);
 445                         else
 446                                 v4l2_ctrl_s_ctrl(dev->colorspace, VIVID_CS_709);
 447                         v4l2_ctrl_s_ctrl(dev->real_rgb_range_cap, 1);
 448                 } else {
 449                         v4l2_ctrl_s_ctrl(dev->colorspace, VIVID_CS_SRGB);
 450                         v4l2_ctrl_s_ctrl(dev->real_rgb_range_cap, 0);
 451                 }
 452                 tpg_s_rgb_range(&dev->tpg, v4l2_ctrl_g_ctrl(dev->rgb_range_cap));
 453                 break;
 454         }
 455         vivid_update_quality(dev);
 456         tpg_reset_source(&dev->tpg, dev->src_rect.width, dev->src_rect.height, dev->field_cap);
 457         dev->crop_cap = dev->src_rect;
 458         dev->crop_bounds_cap = dev->src_rect;
 459         dev->compose_cap = dev->crop_cap;
 460         if (V4L2_FIELD_HAS_T_OR_B(dev->field_cap))
 461                 dev->compose_cap.height /= 2;
 462         dev->fmt_cap_rect = dev->compose_cap;
 463         tpg_s_video_aspect(&dev->tpg, vivid_get_video_aspect(dev));
 464         tpg_s_pixel_aspect(&dev->tpg, vivid_get_pixel_aspect(dev));
 465         tpg_update_mv_step(&dev->tpg);
 466 }
 467
 468 /* Map the field to something that is valid for the current input */
 469 static enum v4l2_field vivid_field_cap(struct vivid_dev *dev, enum v4l2_field field)
 470 {
 471         if (vivid_is_sdtv_cap(dev)) {
 472                 switch (field) {
 473                 case V4L2_FIELD_INTERLACED_TB:
 474                 case V4L2_FIELD_INTERLACED_BT:
 475                 case V4L2_FIELD_SEQ_TB:
 476                 case V4L2_FIELD_SEQ_BT:
 477                 case V4L2_FIELD_TOP:
 478                 case V4L2_FIELD_BOTTOM:
 479                 case V4L2_FIELD_ALTERNATE:
 480                         return field;
 481                 case V4L2_FIELD_INTERLACED:
 482                 default:
 483                         return V4L2_FIELD_INTERLACED;
 484                 }
 485         }
 486         if (vivid_is_hdmi_cap(dev))
 487                 return dev->dv_timings_cap.bt.interlaced ? V4L2_FIELD_ALTERNATE :
 488                                                        V4L2_FIELD_NONE;
 489         return V4L2_FIELD_NONE;
 490 }
 491
 492 static unsigned vivid_colorspace_cap(struct vivid_dev *dev)
 493 {
 494         if (!dev->loop_video || vivid_is_webcam(dev) || vivid_is_tv_cap(dev))
 495                 return tpg_g_colorspace(&dev->tpg);
 496         return dev->colorspace_out;
 497 }
 498
 499 static unsigned vivid_xfer_func_cap(struct vivid_dev *dev)
 500 {
 501         if (!dev->loop_video || vivid_is_webcam(dev) || vivid_is_tv_cap(dev))
 502                 return tpg_g_xfer_func(&dev->tpg);
 503         return dev->xfer_func_out;
 504 }
 505
 506 static unsigned vivid_ycbcr_enc_cap(struct vivid_dev *dev)
 507 {
 508         if (!dev->loop_video || vivid_is_webcam(dev) || vivid_is_tv_cap(dev))
 509                 return tpg_g_ycbcr_enc(&dev->tpg);
 510         return dev->ycbcr_enc_out;
 511 }
 512
 513 static unsigned vivid_quantization_cap(struct vivid_dev *dev)
 514 {
 515         if (!dev->loop_video || vivid_is_webcam(dev) || vivid_is_tv_cap(dev))
 516                 return tpg_g_quantization(&dev->tpg);
 517         return dev->quantization_out;
 518 }
 519
 520 int vivid_g_fmt_vid_cap(struct file *file, void *priv,
 521                                         struct v4l2_format *f)
 522 {
 523         struct vivid_dev *dev = video_drvdata(file);
 524         struct v4l2_pix_format_mplane *mp = &f->fmt.pix_mp;
 525         unsigned p;
 526
 527         mp->width        = dev->fmt_cap_rect.width;
 528         mp->height       = dev->fmt_cap_rect.height;
 529         mp->field        = dev->field_cap;
 530         mp->pixelformat  = dev->fmt_cap->fourcc;
 531         mp->colorspace   = vivid_colorspace_cap(dev);
 532         mp->xfer_func    = vivid_xfer_func_cap(dev);
 533         mp->ycbcr_enc    = vivid_ycbcr_enc_cap(dev);
 534         mp->quantization = vivid_quantization_cap(dev);
 535         mp->num_planes = dev->fmt_cap->buffers;
 536         for (p = 0; p < mp->num_planes; p++) {
 537                 mp->plane_fmt[p].bytesperline = tpg_g_bytesperline(&dev->tpg, p);
 538                 mp->plane_fmt[p].sizeimage =
 539                         tpg_g_line_width(&dev->tpg, p) * mp->height +
 540                         dev->fmt_cap->data_offset[p];
 541         }
 542         return 0;
 543 }
 544
 545 int vivid_try_fmt_vid_cap(struct file *file, void *priv,
 546                         struct v4l2_format *f)
 547 {
 548         struct v4l2_pix_format_mplane *mp = &f->fmt.pix_mp;
 549         struct v4l2_plane_pix_format *pfmt = mp->plane_fmt;
 550         struct vivid_dev *dev = video_drvdata(file);
 551         const struct vivid_fmt *fmt;
 552         unsigned bytesperline, max_bpl;
 553         unsigned factor = 1;
 554         unsigned w, h;
 555         unsigned p;
 556
 557         fmt = vivid_get_format(dev, mp->pixelformat);
 558         if (!fmt) {
 559                 dprintk(dev, 1, "Fourcc format (0x%08x) unknown.\n",
 560                         mp->pixelformat);
 561                 mp->pixelformat = V4L2_PIX_FMT_YUYV;
 562                 fmt = vivid_get_format(dev, mp->pixelformat);
 563         }
 564
 565         mp->field = vivid_field_cap(dev, mp->field);
 566         if (vivid_is_webcam(dev)) {
 567                 const struct v4l2_frmsize_discrete *sz =
 568                         v4l2_find_nearest_format(&webcam_probe, mp->width, mp->height);
 569
 570                 w = sz->width;
 571                 h = sz->height;
 572         } else if (vivid_is_sdtv_cap(dev)) {
 573                 w = 720;
 574                 h = (dev->std_cap & V4L2_STD_525_60) ? 480 : 576;
 575         } else {
 576                 w = dev->src_rect.width;
 577                 h = dev->src_rect.height;
 578         }
 579         if (V4L2_FIELD_HAS_T_OR_B(mp->field))
 580                 factor = 2;
 581         if (vivid_is_webcam(dev) ||
 582             (!dev->has_scaler_cap && !dev->has_crop_cap && !dev->has_compose_cap)) {
 583                 mp->width = w;
 584                 mp->height = h / factor;
 585         } else {
 586                 struct v4l2_rect r = { 0, 0, mp->width, mp->height * factor };
 587
 588                 v4l2_rect_set_min_size(&r, &vivid_min_rect);
 589                 v4l2_rect_set_max_size(&r, &vivid_max_rect);
 590                 if (dev->has_scaler_cap && !dev->has_compose_cap) {
 591                         struct v4l2_rect max_r = { 0, 0, MAX_ZOOM * w, MAX_ZOOM * h };
 592
 593                         v4l2_rect_set_max_size(&r, &max_r);
 594                 } else if (!dev->has_scaler_cap && dev->has_crop_cap && !dev->has_compose_cap) {
 595                         v4l2_rect_set_max_size(&r, &dev->src_rect);
 596                 } else if (!dev->has_scaler_cap && !dev->has_crop_cap) {
 597                         v4l2_rect_set_min_size(&r, &dev->src_rect);
 598                 }
 599                 mp->width = r.width;
 600                 mp->height = r.height / factor;
 601         }
 602
 603         /* This driver supports custom bytesperline values */
 604
 605         mp->num_planes = fmt->buffers;
 606         for (p = 0; p < mp->num_planes; p++) {
 607                 /* Calculate the minimum supported bytesperline value */
 608                 bytesperline = (mp->width * fmt->bit_depth[p]) >> 3;
 609                 /* Calculate the maximum supported bytesperline value */
 610                 max_bpl = (MAX_ZOOM * MAX_WIDTH * fmt->bit_depth[p]) >> 3;
 611
 612                 if (pfmt[p].bytesperline > max_bpl)
 613                         pfmt[p].bytesperline = max_bpl;
 614                 if (pfmt[p].bytesperline < bytesperline)
 615                         pfmt[p].bytesperline = bytesperline;
 616                 pfmt[p].sizeimage = tpg_calc_line_width(&dev->tpg, p, pfmt[p].bytesperline) *
 617                         mp->height + fmt->data_offset[p];
 618                 memset(pfmt[p].reserved, 0, sizeof(pfmt[p].reserved));
 619         }
 620         mp->colorspace = vivid_colorspace_cap(dev);
 621         mp->ycbcr_enc = vivid_ycbcr_enc_cap(dev);
 622         mp->xfer_func = vivid_xfer_func_cap(dev);
 623         mp->quantization = vivid_quantization_cap(dev);
 624         memset(mp->reserved, 0, sizeof(mp->reserved));
 625         return 0;
 626 }
 627
 628 int vivid_s_fmt_vid_cap(struct file *file, void *priv,
 629                                         struct v4l2_format *f)
 630 {
 631         struct v4l2_pix_format_mplane *mp = &f->fmt.pix_mp;
 632         struct vivid_dev *dev = video_drvdata(file);
 633         struct v4l2_rect *crop = &dev->crop_cap;
 634         struct v4l2_rect *compose = &dev->compose_cap;
 635         struct vb2_queue *q = &dev->vb_vid_cap_q;
 636         int ret = vivid_try_fmt_vid_cap(file, priv, f);
 637         unsigned factor = 1;
 638         unsigned p;
 639         unsigned i;
 640
 641         if (ret < 0)
 642                 return ret;
 643
 644         if (vb2_is_busy(q)) {
 645                 dprintk(dev, 1, "%s device busy\n", __func__);
 646                 return -EBUSY;
 647         }
 648
 649         if (dev->overlay_cap_owner && dev->fb_cap.fmt.pixelformat != mp->pixelformat) {
 650                 dprintk(dev, 1, "overlay is active, can't change pixelformat\n");
 651                 return -EBUSY;
 652         }
 653
 654         dev->fmt_cap = vivid_get_format(dev, mp->pixelformat);
 655         if (V4L2_FIELD_HAS_T_OR_B(mp->field))
 656                 factor = 2;
 657
 658         /* Note: the webcam input doesn't support scaling, cropping or composing */
 659
 660         if (!vivid_is_webcam(dev) &&
 661             (dev->has_scaler_cap || dev->has_crop_cap || dev->has_compose_cap)) {
 662                 struct v4l2_rect r = { 0, 0, mp->width, mp->height };
 663
 664                 if (dev->has_scaler_cap) {
 665                         if (dev->has_compose_cap)
 666                                 v4l2_rect_map_inside(compose, &r);
 667                         else
 668                                 *compose = r;
 669                         if (dev->has_crop_cap && !dev->has_compose_cap) {
 670                                 struct v4l2_rect min_r = {
 671                                         0, 0,
 672                                         r.width / MAX_ZOOM,
 673                                         factor * r.height / MAX_ZOOM
 674                                 };
 675                                 struct v4l2_rect max_r = {
 676                                         0, 0,
 677                                         r.width * MAX_ZOOM,
 678                                         factor * r.height * MAX_ZOOM
 679                                 };
 680
 681                                 v4l2_rect_set_min_size(crop, &min_r);
 682                                 v4l2_rect_set_max_size(crop, &max_r);
 683                                 v4l2_rect_map_inside(crop, &dev->crop_bounds_cap);
 684                         } else if (dev->has_crop_cap) {
 685                                 struct v4l2_rect min_r = {
 686                                         0, 0,
 687                                         compose->width / MAX_ZOOM,
 688                                         factor * compose->height / MAX_ZOOM
 689                                 };
 690                                 struct v4l2_rect max_r = {
 691                                         0, 0,
 692                                         compose->width * MAX_ZOOM,
 693                                         factor * compose->height * MAX_ZOOM
 694                                 };
 695
 696                                 v4l2_rect_set_min_size(crop, &min_r);
 697                                 v4l2_rect_set_max_size(crop, &max_r);
 698                                 v4l2_rect_map_inside(crop, &dev->crop_bounds_cap);
 699                         }
 700                 } else if (dev->has_crop_cap && !dev->has_compose_cap) {
 701                         r.height *= factor;
 702                         v4l2_rect_set_size_to(crop, &r);
 703                         v4l2_rect_map_inside(crop, &dev->crop_bounds_cap);
 704                         r = *crop;
 705                         r.height /= factor;
 706                         v4l2_rect_set_size_to(compose, &r);
 707                 } else if (!dev->has_crop_cap) {
 708                         v4l2_rect_map_inside(compose, &r);
 709                 } else {
 710                         r.height *= factor;
 711                         v4l2_rect_set_max_size(crop, &r);
 712                         v4l2_rect_map_inside(crop, &dev->crop_bounds_cap);
 713                         compose->top *= factor;
 714                         compose->height *= factor;
 715                         v4l2_rect_set_size_to(compose, crop);
 716                         v4l2_rect_map_inside(compose, &r);
 717                         compose->top /= factor;
 718                         compose->height /= factor;
 719                 }
 720         } else if (vivid_is_webcam(dev)) {
 721                 /* Guaranteed to be a match */
 722                 for (i = 0; i < ARRAY_SIZE(webcam_sizes); i++)
 723                         if (webcam_sizes[i].width == mp->width &&
 724                                         webcam_sizes[i].height == mp->height)
 725                                 break;
 726                 dev->webcam_size_idx = i;
 727                 if (dev->webcam_ival_idx >= 2 * (VIVID_WEBCAM_SIZES - i))
 728                         dev->webcam_ival_idx = 2 * (VIVID_WEBCAM_SIZES - i) - 1;
 729                 vivid_update_format_cap(dev, false);
 730         } else {
 731                 struct v4l2_rect r = { 0, 0, mp->width, mp->height };
 732
 733                 v4l2_rect_set_size_to(compose, &r);
 734                 r.height *= factor;
 735                 v4l2_rect_set_size_to(crop, &r);
 736         }
 737
 738         dev->fmt_cap_rect.width = mp->width;
 739         dev->fmt_cap_rect.height = mp->height;
 740         tpg_s_buf_height(&dev->tpg, mp->height);
 741         tpg_s_fourcc(&dev->tpg, dev->fmt_cap->fourcc);
 742         for (p = 0; p < tpg_g_buffers(&dev->tpg); p++)
 743                 tpg_s_bytesperline(&dev->tpg, p, mp->plane_fmt[p].bytesperline);
 744         dev->field_cap = mp->field;
 745         if (dev->field_cap == V4L2_FIELD_ALTERNATE)
 746                 tpg_s_field(&dev->tpg, V4L2_FIELD_TOP, true);
 747         else
 748                 tpg_s_field(&dev->tpg, dev->field_cap, false);
 749         tpg_s_crop_compose(&dev->tpg, &dev->crop_cap, &dev->compose_cap);
 750         if (vivid_is_sdtv_cap(dev))
 751                 dev->tv_field_cap = mp->field;
 752         tpg_update_mv_step(&dev->tpg);
 753         return 0;
 754 }
 755
 756 int vidioc_g_fmt_vid_cap_mplane(struct file *file, void *priv,
 757                                         struct v4l2_format *f)
 758 {
 759         struct vivid_dev *dev = video_drvdata(file);
 760
 761         if (!dev->multiplanar)
 762                 return -ENOTTY;
 763         return vivid_g_fmt_vid_cap(file, priv, f);
 764 }
 765
 766 int vidioc_try_fmt_vid_cap_mplane(struct file *file, void *priv,
 767                         struct v4l2_format *f)
 768 {
 769         struct vivid_dev *dev = video_drvdata(file);
 770
 771         if (!dev->multiplanar)
 772                 return -ENOTTY;
 773         return vivid_try_fmt_vid_cap(file, priv, f);
 774 }
 775
 776 int vidioc_s_fmt_vid_cap_mplane(struct file *file, void *priv,
 777                         struct v4l2_format *f)
 778 {
 779         struct vivid_dev *dev = video_drvdata(file);
 780
 781         if (!dev->multiplanar)
 782                 return -ENOTTY;
 783         return vivid_s_fmt_vid_cap(file, priv, f);
 784 }
 785
 786 int vidioc_g_fmt_vid_cap(struct file *file, void *priv,
 787                                         struct v4l2_format *f)
 788 {
 789         struct vivid_dev *dev = video_drvdata(file);
 790
 791         if (dev->multiplanar)
 792                 return -ENOTTY;
 793         return fmt_sp2mp_func(file, priv, f, vivid_g_fmt_vid_cap);
 794 }
 795
 796 int vidioc_try_fmt_vid_cap(struct file *file, void *priv,
 797                         struct v4l2_format *f)
 798 {
 799         struct vivid_dev *dev = video_drvdata(file);
 800
 801         if (dev->multiplanar)
 802                 return -ENOTTY;
 803         return fmt_sp2mp_func(file, priv, f, vivid_try_fmt_vid_cap);
 804 }
 805
 806 int vidioc_s_fmt_vid_cap(struct file *file, void *priv,
 807                         struct v4l2_format *f)
 808 {
 809         struct vivid_dev *dev = video_drvdata(file);
 810
 811         if (dev->multiplanar)
 812                 return -ENOTTY;
 813         return fmt_sp2mp_func(file, priv, f, vivid_s_fmt_vid_cap);
 814 }
 815
 816 int vivid_vid_cap_g_selection(struct file *file, void *priv,
 817                               struct v4l2_selection *sel)
 818 {
 819         struct vivid_dev *dev = video_drvdata(file);
 820
 821         if (!dev->has_crop_cap && !dev->has_compose_cap)
 822                 return -ENOTTY;
 823         if (sel->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
 824                 return -EINVAL;
 825         if (vivid_is_webcam(dev))
 826                 return -ENODATA;
 827
 828         sel->r.left = sel->r.top = 0;
 829         switch (sel->target) {
 830         case V4L2_SEL_TGT_CROP:
 831                 if (!dev->has_crop_cap)
 832                         return -EINVAL;
 833                 sel->r = dev->crop_cap;
 834                 break;
 835         case V4L2_SEL_TGT_CROP_DEFAULT:
 836         case V4L2_SEL_TGT_CROP_BOUNDS:
 837                 if (!dev->has_crop_cap)
 838                         return -EINVAL;
 839                 sel->r = dev->src_rect;
 840                 break;
 841         case V4L2_SEL_TGT_COMPOSE_BOUNDS:
 842                 if (!dev->has_compose_cap)
 843                         return -EINVAL;
 844                 sel->r = vivid_max_rect;
 845                 break;
 846         case V4L2_SEL_TGT_COMPOSE:
 847                 if (!dev->has_compose_cap)
 848                         return -EINVAL;
 849                 sel->r = dev->compose_cap;
 850                 break;
 851         case V4L2_SEL_TGT_COMPOSE_DEFAULT:
 852                 if (!dev->has_compose_cap)
 853                         return -EINVAL;
 854                 sel->r = dev->fmt_cap_rect;
 855                 break;
 856         default:
 857                 return -EINVAL;
 858         }
 859         return 0;
 860 }
 861
 862 int vivid_vid_cap_s_selection(struct file *file, void *fh, struct v4l2_selection *s)
 863 {
 864         struct vivid_dev *dev = video_drvdata(file);
 865         struct v4l2_rect *crop = &dev->crop_cap;
 866         struct v4l2_rect *compose = &dev->compose_cap;
 867         unsigned factor = V4L2_FIELD_HAS_T_OR_B(dev->field_cap) ? 2 : 1;
 868         int ret;
 869
 870         if (!dev->has_crop_cap && !dev->has_compose_cap)
 871                 return -ENOTTY;
 872         if (s->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
 873                 return -EINVAL;
 874         if (vivid_is_webcam(dev))
 875                 return -ENODATA;
 876
 877         switch (s->target) {
 878         case V4L2_SEL_TGT_CROP:
 879                 if (!dev->has_crop_cap)
 880                         return -EINVAL;
 881                 ret = vivid_vid_adjust_sel(s->flags, &s->r);
 882                 if (ret)
 883                         return ret;
 884                 v4l2_rect_set_min_size(&s->r, &vivid_min_rect);
 885                 v4l2_rect_set_max_size(&s->r, &dev->src_rect);
 886                 v4l2_rect_map_inside(&s->r, &dev->crop_bounds_cap);
 887                 s->r.top /= factor;
 888                 s->r.height /= factor;
 889                 if (dev->has_scaler_cap) {
 890                         struct v4l2_rect fmt = dev->fmt_cap_rect;
 891                         struct v4l2_rect max_rect = {
 892                                 0, 0,
 893                                 s->r.width * MAX_ZOOM,
 894                                 s->r.height * MAX_ZOOM
 895                         };
 896                         struct v4l2_rect min_rect = {
 897                                 0, 0,
 898                                 s->r.width / MAX_ZOOM,
 899                                 s->r.height / MAX_ZOOM
 900                         };
 901
 902                         v4l2_rect_set_min_size(&fmt, &min_rect);
 903                         if (!dev->has_compose_cap)
 904                                 v4l2_rect_set_max_size(&fmt, &max_rect);
 905                         if (!v4l2_rect_same_size(&dev->fmt_cap_rect, &fmt) &&
 906                             vb2_is_busy(&dev->vb_vid_cap_q))
 907                                 return -EBUSY;
 908                         if (dev->has_compose_cap) {
 909                                 v4l2_rect_set_min_size(compose, &min_rect);
 910                                 v4l2_rect_set_max_size(compose, &max_rect);
 911                         }
 912                         dev->fmt_cap_rect = fmt;
 913                         tpg_s_buf_height(&dev->tpg, fmt.height);
 914                 } else if (dev->has_compose_cap) {
 915                         struct v4l2_rect fmt = dev->fmt_cap_rect;
 916
 917                         v4l2_rect_set_min_size(&fmt, &s->r);
 918                         if (!v4l2_rect_same_size(&dev->fmt_cap_rect, &fmt) &&
 919                             vb2_is_busy(&dev->vb_vid_cap_q))
 920                                 return -EBUSY;
 921                         dev->fmt_cap_rect = fmt;
 922                         tpg_s_buf_height(&dev->tpg, fmt.height);
 923                         v4l2_rect_set_size_to(compose, &s->r);
 924                         v4l2_rect_map_inside(compose, &dev->fmt_cap_rect);
 925                 } else {
 926                         if (!v4l2_rect_same_size(&s->r, &dev->fmt_cap_rect) &&
 927                             vb2_is_busy(&dev->vb_vid_cap_q))
 928                                 return -EBUSY;
 929                         v4l2_rect_set_size_to(&dev->fmt_cap_rect, &s->r);
 930                         v4l2_rect_set_size_to(compose, &s->r);
 931                         v4l2_rect_map_inside(compose, &dev->fmt_cap_rect);
 932                         tpg_s_buf_height(&dev->tpg, dev->fmt_cap_rect.height);
 933                 }
 934                 s->r.top *= factor;
 935                 s->r.height *= factor;
 936                 *crop = s->r;
 937                 break;
 938         case V4L2_SEL_TGT_COMPOSE:
 939                 if (!dev->has_compose_cap)
 940                         return -EINVAL;
 941                 ret = vivid_vid_adjust_sel(s->flags, &s->r);
 942                 if (ret)
 943                         return ret;
 944                 v4l2_rect_set_min_size(&s->r, &vivid_min_rect);
 945                 v4l2_rect_set_max_size(&s->r, &dev->fmt_cap_rect);
 946                 if (dev->has_scaler_cap) {
 947                         struct v4l2_rect max_rect = {
 948                                 0, 0,
 949                                 dev->src_rect.width * MAX_ZOOM,
 950                                 (dev->src_rect.height / factor) * MAX_ZOOM
 951                         };
 952
 953                         v4l2_rect_set_max_size(&s->r, &max_rect);
 954                         if (dev->has_crop_cap) {
 955                                 struct v4l2_rect min_rect = {
 956                                         0, 0,
 957                                         s->r.width / MAX_ZOOM,
 958                                         (s->r.height * factor) / MAX_ZOOM
 959                                 };
 960                                 struct v4l2_rect max_rect = {
 961                                         0, 0,
 962                                         s->r.width * MAX_ZOOM,
 963                                         (s->r.height * factor) * MAX_ZOOM
 964                                 };
 965
 966                                 v4l2_rect_set_min_size(crop, &min_rect);
 967                                 v4l2_rect_set_max_size(crop, &max_rect);
 968                                 v4l2_rect_map_inside(crop, &dev->crop_bounds_cap);
 969                         }
 970                 } else if (dev->has_crop_cap) {
 971                         s->r.top *= factor;
 972                         s->r.height *= factor;
 973                         v4l2_rect_set_max_size(&s->r, &dev->src_rect);
 974                         v4l2_rect_set_size_to(crop, &s->r);
 975                         v4l2_rect_map_inside(crop, &dev->crop_bounds_cap);
 976                         s->r.top /= factor;
 977                         s->r.height /= factor;
 978                 } else {
 979                         v4l2_rect_set_size_to(&s->r, &dev->src_rect);
 980                         s->r.height /= factor;
 981                 }
 982                 v4l2_rect_map_inside(&s->r, &dev->fmt_cap_rect);
 983                 if (dev->bitmap_cap && (compose->width != s->r.width ||
 984                                         compose->height != s->r.height)) {
 985                         kfree(dev->bitmap_cap);
 986                         dev->bitmap_cap = NULL;
 987                 }
 988                 *compose = s->r;
 989                 break;
 990         default:
 991                 return -EINVAL;
 992         }
 993
 994         tpg_s_crop_compose(&dev->tpg, crop, compose);
 995         return 0;
 996 }
 997
 998 int vivid_vid_cap_cropcap(struct file *file, void *priv,
 999                               struct v4l2_cropcap *cap)
1000 {
1001         struct vivid_dev *dev = video_drvdata(file);
1002
1003         if (cap->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
1004                 return -EINVAL;
1005
1006         switch (vivid_get_pixel_aspect(dev)) {
1007         case TPG_PIXEL_ASPECT_NTSC:
1008                 cap->pixelaspect.numerator = 11;
1009                 cap->pixelaspect.denominator = 10;
1010                 break;
1011         case TPG_PIXEL_ASPECT_PAL:
1012                 cap->pixelaspect.numerator = 54;
1013                 cap->pixelaspect.denominator = 59;
1014                 break;
1015         case TPG_PIXEL_ASPECT_SQUARE:
1016                 cap->pixelaspect.numerator = 1;
1017                 cap->pixelaspect.denominator = 1;
1018                 break;
1019         }
1020         return 0;
1021 }
1022
1023 int vidioc_enum_fmt_vid_overlay(struct file *file, void  *priv,
1024                                         struct v4l2_fmtdesc *f)
1025 {
1026         struct vivid_dev *dev = video_drvdata(file);
1027         const struct vivid_fmt *fmt;
1028
1029         if (dev->multiplanar)
1030                 return -ENOTTY;
1031
1032         if (f->index >= ARRAY_SIZE(formats_ovl))
1033                 return -EINVAL;
1034
1035         fmt = &formats_ovl[f->index];
1036
1037         f->pixelformat = fmt->fourcc;
1038         return 0;
1039 }
1040
1041 int vidioc_g_fmt_vid_overlay(struct file *file, void *priv,
1042                                         struct v4l2_format *f)
1043 {
1044         struct vivid_dev *dev = video_drvdata(file);
1045         const struct v4l2_rect *compose = &dev->compose_cap;
1046         struct v4l2_window *win = &f->fmt.win;
1047         unsigned clipcount = win->clipcount;
1048
1049         if (dev->multiplanar)
1050                 return -ENOTTY;
1051
1052         win->w.top = dev->overlay_cap_top;
1053         win->w.left = dev->overlay_cap_left;
1054         win->w.width = compose->width;
1055         win->w.height = compose->height;
1056         win->field = dev->overlay_cap_field;
1057         win->clipcount = dev->clipcount_cap;
1058         if (clipcount > dev->clipcount_cap)
1059                 clipcount = dev->clipcount_cap;
1060         if (dev->bitmap_cap == NULL)
1061                 win->bitmap = NULL;
1062         else if (win->bitmap) {
1063                 if (copy_to_user(win->bitmap, dev->bitmap_cap,
1064                     ((compose->width + 7) / 8) * compose->height))
1065                         return -EFAULT;
1066         }
1067         if (clipcount && win->clips) {
1068                 if (copy_to_user(win->clips, dev->clips_cap,
1069                                  clipcount * sizeof(dev->clips_cap[0])))
1070                         return -EFAULT;
1071         }
1072         return 0;
1073 }
1074
1075 int vidioc_try_fmt_vid_overlay(struct file *file, void *priv,
1076                                         struct v4l2_format *f)
1077 {
1078         struct vivid_dev *dev = video_drvdata(file);
1079         const struct v4l2_rect *compose = &dev->compose_cap;
1080         struct v4l2_window *win = &f->fmt.win;
1081         int i, j;
1082
1083         if (dev->multiplanar)
1084                 return -ENOTTY;
1085
1086         win->w.left = clamp_t(int, win->w.left,
1087                               -dev->fb_cap.fmt.width, dev->fb_cap.fmt.width);
1088         win->w.top = clamp_t(int, win->w.top,
1089                              -dev->fb_cap.fmt.height, dev->fb_cap.fmt.height);
1090         win->w.width = compose->width;
1091         win->w.height = compose->height;
1092         if (win->field != V4L2_FIELD_BOTTOM && win->field != V4L2_FIELD_TOP)
1093                 win->field = V4L2_FIELD_ANY;
1094         win->chromakey = 0;
1095         win->global_alpha = 0;
1096         if (win->clipcount && !win->clips)
1097                 win->clipcount = 0;
1098         if (win->clipcount > MAX_CLIPS)
1099                 win->clipcount = MAX_CLIPS;
1100         if (win->clipcount) {
1101                 if (copy_from_user(dev->try_clips_cap, win->clips,
1102                                    win->clipcount * sizeof(dev->clips_cap[0])))
1103                         return -EFAULT;
1104                 for (i = 0; i < win->clipcount; i++) {
1105                         struct v4l2_rect *r = &dev->try_clips_cap[i].c;
1106
1107                         r->top = clamp_t(s32, r->top, 0, dev->fb_cap.fmt.height - 1);
1108                         r->height = clamp_t(s32, r->height, 1, dev->fb_cap.fmt.height - r->top);
1109                         r->left = clamp_t(u32, r->left, 0, dev->fb_cap.fmt.width - 1);
1110                         r->width = clamp_t(u32, r->width, 1, dev->fb_cap.fmt.width - r->left);
1111                 }
1112                 /*
1113                  * Yeah, so sue me, it's an O(n^2) algorithm. But n is a small
1114                  * number and it's typically a one-time deal.
1115                  */
1116                 for (i = 0; i < win->clipcount - 1; i++) {
1117                         struct v4l2_rect *r1 = &dev->try_clips_cap[i].c;
1118
1119                         for (j = i + 1; j < win->clipcount; j++) {
1120                                 struct v4l2_rect *r2 = &dev->try_clips_cap[j].c;
1121
1122                                 if (v4l2_rect_overlap(r1, r2))
1123                                         return -EINVAL;
1124                         }
1125                 }
1126                 if (copy_to_user(win->clips, dev->try_clips_cap,
1127                                  win->clipcount * sizeof(dev->clips_cap[0])))
1128                         return -EFAULT;
1129         }
1130         return 0;
1131 }
1132
1133 int vidioc_s_fmt_vid_overlay(struct file *file, void *priv,
1134                                         struct v4l2_format *f)
1135 {
1136         struct vivid_dev *dev = video_drvdata(file);
1137         const struct v4l2_rect *compose = &dev->compose_cap;
1138         struct v4l2_window *win = &f->fmt.win;
1139         int ret = vidioc_try_fmt_vid_overlay(file, priv, f);
1140         unsigned bitmap_size = ((compose->width + 7) / 8) * compose->height;
1141         unsigned clips_size = win->clipcount * sizeof(dev->clips_cap[0]);
1142         void *new_bitmap = NULL;
1143
1144         if (ret)
1145                 return ret;
1146
1147         if (win->bitmap) {
1148                 new_bitmap = vzalloc(bitmap_size);
1149
1150                 if (new_bitmap == NULL)
1151                         return -ENOMEM;
1152                 if (copy_from_user(new_bitmap, win->bitmap, bitmap_size)) {
1153                         vfree(new_bitmap);
1154                         return -EFAULT;
1155                 }
1156         }
1157
1158         dev->overlay_cap_top = win->w.top;
1159         dev->overlay_cap_left = win->w.left;
1160         dev->overlay_cap_field = win->field;
1161         vfree(dev->bitmap_cap);
1162         dev->bitmap_cap = new_bitmap;
1163         dev->clipcount_cap = win->clipcount;
1164         if (dev->clipcount_cap)
1165                 memcpy(dev->clips_cap, dev->try_clips_cap, clips_size);
1166         return 0;
1167 }
1168
1169 int vivid_vid_cap_overlay(struct file *file, void *fh, unsigned i)
1170 {
1171         struct vivid_dev *dev = video_drvdata(file);
1172
1173         if (dev->multiplanar)
1174                 return -ENOTTY;
1175
1176         if (i && dev->fb_vbase_cap == NULL)
1177                 return -EINVAL;
1178
1179         if (i && dev->fb_cap.fmt.pixelformat != dev->fmt_cap->fourcc) {
1180                 dprintk(dev, 1, "mismatch between overlay and video capture pixelformats\n");
1181                 return -EINVAL;
1182         }
1183
1184         if (dev->overlay_cap_owner && dev->overlay_cap_owner != fh)
1185                 return -EBUSY;
1186         dev->overlay_cap_owner = i ? fh : NULL;
1187         return 0;
1188 }
1189
1190 int vivid_vid_cap_g_fbuf(struct file *file, void *fh,
1191                                 struct v4l2_framebuffer *a)
1192 {
1193         struct vivid_dev *dev = video_drvdata(file);
1194
1195         if (dev->multiplanar)
1196                 return -ENOTTY;
1197
1198         *a = dev->fb_cap;
1199         a->capability = V4L2_FBUF_CAP_BITMAP_CLIPPING |
1200                         V4L2_FBUF_CAP_LIST_CLIPPING;
1201         a->flags = V4L2_FBUF_FLAG_PRIMARY;
1202         a->fmt.field = V4L2_FIELD_NONE;
1203         a->fmt.colorspace = V4L2_COLORSPACE_SRGB;
1204         a->fmt.priv = 0;
1205         return 0;
1206 }
1207
1208 int vivid_vid_cap_s_fbuf(struct file *file, void *fh,
1209                                 const struct v4l2_framebuffer *a)
1210 {
1211         struct vivid_dev *dev = video_drvdata(file);
1212         const struct vivid_fmt *fmt;
1213
1214         if (dev->multiplanar)
1215                 return -ENOTTY;
1216
1217         if (!capable(CAP_SYS_ADMIN) && !capable(CAP_SYS_RAWIO))
1218                 return -EPERM;
1219
1220         if (dev->overlay_cap_owner)
1221                 return -EBUSY;
1222
1223         if (a->base == NULL) {
1224                 dev->fb_cap.base = NULL;
1225                 dev->fb_vbase_cap = NULL;
1226                 return 0;
1227         }
1228
1229         if (a->fmt.width < 48 || a->fmt.height < 32)
1230                 return -EINVAL;
1231         fmt = vivid_get_format(dev, a->fmt.pixelformat);
1232         if (!fmt || !fmt->can_do_overlay)
1233                 return -EINVAL;
1234         if (a->fmt.bytesperline < (a->fmt.width * fmt->bit_depth[0]) / 8)
1235                 return -EINVAL;
1236         if (a->fmt.height * a->fmt.bytesperline < a->fmt.sizeimage)
1237                 return -EINVAL;
1238
1239         dev->fb_vbase_cap = phys_to_virt((unsigned long)a->base);
1240         dev->fb_cap = *a;
1241         dev->overlay_cap_left = clamp_t(int, dev->overlay_cap_left,
1242                                     -dev->fb_cap.fmt.width, dev->fb_cap.fmt.width);
1243         dev->overlay_cap_top = clamp_t(int, dev->overlay_cap_top,
1244                                    -dev->fb_cap.fmt.height, dev->fb_cap.fmt.height);
1245         return 0;
1246 }
1247
1248 static const struct v4l2_audio vivid_audio_inputs[] = {
1249         { 0, "TV", V4L2_AUDCAP_STEREO },
1250         { 1, "Line-In", V4L2_AUDCAP_STEREO },
1251 };
1252
1253 int vidioc_enum_input(struct file *file, void *priv,
1254                                 struct v4l2_input *inp)
1255 {
1256         struct vivid_dev *dev = video_drvdata(file);
1257
1258         if (inp->index >= dev->num_inputs)
1259                 return -EINVAL;
1260
1261         inp->type = V4L2_INPUT_TYPE_CAMERA;
1262         switch (dev->input_type[inp->index]) {
1263         case WEBCAM:
1264                 snprintf(inp->name, sizeof(inp->name), "Webcam %u",
1265                                 dev->input_name_counter[inp->index]);
1266                 inp->capabilities = 0;
1267                 break;
1268         case TV:
1269                 snprintf(inp->name, sizeof(inp->name), "TV %u",
1270                                 dev->input_name_counter[inp->index]);
1271                 inp->type = V4L2_INPUT_TYPE_TUNER;
1272                 inp->std = V4L2_STD_ALL;
1273                 if (dev->has_audio_inputs)
1274                         inp->audioset = (1 << ARRAY_SIZE(vivid_audio_inputs)) - 1;
1275                 inp->capabilities = V4L2_IN_CAP_STD;
1276                 break;
1277         case SVID:
1278                 snprintf(inp->name, sizeof(inp->name), "S-Video %u",
1279                                 dev->input_name_counter[inp->index]);
1280                 inp->std = V4L2_STD_ALL;
1281                 if (dev->has_audio_inputs)
1282                         inp->audioset = (1 << ARRAY_SIZE(vivid_audio_inputs)) - 1;
1283                 inp->capabilities = V4L2_IN_CAP_STD;
1284                 break;
1285         case HDMI:
1286                 snprintf(inp->name, sizeof(inp->name), "HDMI %u",
1287                                 dev->input_name_counter[inp->index]);
1288                 inp->capabilities = V4L2_IN_CAP_DV_TIMINGS;
1289                 if (dev->edid_blocks == 0 ||
1290                     dev->dv_timings_signal_mode == NO_SIGNAL)
1291                         inp->status |= V4L2_IN_ST_NO_SIGNAL;
1292                 else if (dev->dv_timings_signal_mode == NO_LOCK ||
1293                          dev->dv_timings_signal_mode == OUT_OF_RANGE)
1294                         inp->status |= V4L2_IN_ST_NO_H_LOCK;
1295                 break;
1296         }
1297         if (dev->sensor_hflip)
1298                 inp->status |= V4L2_IN_ST_HFLIP;
1299         if (dev->sensor_vflip)
1300                 inp->status |= V4L2_IN_ST_VFLIP;
1301         if (dev->input == inp->index && vivid_is_sdtv_cap(dev)) {
1302                 if (dev->std_signal_mode == NO_SIGNAL) {
1303                         inp->status |= V4L2_IN_ST_NO_SIGNAL;
1304                 } else if (dev->std_signal_mode == NO_LOCK) {
1305                         inp->status |= V4L2_IN_ST_NO_H_LOCK;
1306                 } else if (vivid_is_tv_cap(dev)) {
1307                         switch (tpg_g_quality(&dev->tpg)) {
1308                         case TPG_QUAL_GRAY:
1309                                 inp->status |= V4L2_IN_ST_COLOR_KILL;
1310                                 break;
1311                         case TPG_QUAL_NOISE:
1312                                 inp->status |= V4L2_IN_ST_NO_H_LOCK;
1313                                 break;
1314                         default:
1315                                 break;
1316                         }
1317                 }
1318         }
1319         return 0;
1320 }
1321
1322 int vidioc_g_input(struct file *file, void *priv, unsigned *i)
1323 {
1324         struct vivid_dev *dev = video_drvdata(file);
1325
1326         *i = dev->input;
1327         return 0;
1328 }
1329
1330 int vidioc_s_input(struct file *file, void *priv, unsigned i)
1331 {
1332         struct vivid_dev *dev = video_drvdata(file);
1333         struct v4l2_bt_timings *bt = &dev->dv_timings_cap.bt;
1334         unsigned brightness;
1335
1336         if (i >= dev->num_inputs)
1337                 return -EINVAL;
1338
1339         if (i == dev->input)
1340                 return 0;
1341
1342         if (vb2_is_busy(&dev->vb_vid_cap_q) || vb2_is_busy(&dev->vb_vbi_cap_q))
1343                 return -EBUSY;
1344
1345         dev->input = i;
1346         dev->vid_cap_dev.tvnorms = 0;
1347         if (dev->input_type[i] == TV || dev->input_type[i] == SVID) {
1348                 dev->tv_audio_input = (dev->input_type[i] == TV) ? 0 : 1;
1349                 dev->vid_cap_dev.tvnorms = V4L2_STD_ALL;
1350         }
1351         dev->vbi_cap_dev.tvnorms = dev->vid_cap_dev.tvnorms;
1352         vivid_update_format_cap(dev, false);
1353
1354         if (dev->colorspace) {
1355                 switch (dev->input_type[i]) {
1356                 case WEBCAM:
1357                         v4l2_ctrl_s_ctrl(dev->colorspace, VIVID_CS_SRGB);
1358                         break;
1359                 case TV:
1360                 case SVID:
1361                         v4l2_ctrl_s_ctrl(dev->colorspace, VIVID_CS_170M);
1362                         break;
1363                 case HDMI:
1364                         if (bt->flags & V4L2_DV_FL_IS_CE_VIDEO) {
1365                                 if (dev->src_rect.width == 720 && dev->src_rect.height <= 576)
1366                                         v4l2_ctrl_s_ctrl(dev->colorspace, VIVID_CS_170M);
1367                                 else
1368                                         v4l2_ctrl_s_ctrl(dev->colorspace, VIVID_CS_709);
1369                         } else {
1370                                 v4l2_ctrl_s_ctrl(dev->colorspace, VIVID_CS_SRGB);
1371                         }
1372                         break;
1373                 }
1374         }
1375
1376         /*
1377          * Modify the brightness range depending on the input.
1378          * This makes it easy to use vivid to test if applications can
1379          * handle control range modifications and is also how this is
1380          * typically used in practice as different inputs may be hooked
1381          * up to different receivers with different control ranges.
1382          */
1383         brightness = 128 * i + dev->input_brightness[i];
1384         v4l2_ctrl_modify_range(dev->brightness,
1385                         128 * i, 255 + 128 * i, 1, 128 + 128 * i);
1386         v4l2_ctrl_s_ctrl(dev->brightness, brightness);
1387         return 0;
1388 }
1389
1390 int vidioc_enumaudio(struct file *file, void *fh, struct v4l2_audio *vin)
1391 {
1392         if (vin->index >= ARRAY_SIZE(vivid_audio_inputs))
1393                 return -EINVAL;
1394         *vin = vivid_audio_inputs[vin->index];
1395         return 0;
1396 }
1397
1398 int vidioc_g_audio(struct file *file, void *fh, struct v4l2_audio *vin)
1399 {
1400         struct vivid_dev *dev = video_drvdata(file);
1401
1402         if (!vivid_is_sdtv_cap(dev))
1403                 return -EINVAL;
1404         *vin = vivid_audio_inputs[dev->tv_audio_input];
1405         return 0;
1406 }
1407
1408 int vidioc_s_audio(struct file *file, void *fh, const struct v4l2_audio *vin)
1409 {
1410         struct vivid_dev *dev = video_drvdata(file);
1411
1412         if (!vivid_is_sdtv_cap(dev))
1413                 return -EINVAL;
1414         if (vin->index >= ARRAY_SIZE(vivid_audio_inputs))
1415                 return -EINVAL;
1416         dev->tv_audio_input = vin->index;
1417         return 0;
1418 }
1419
1420 int vivid_video_g_frequency(struct file *file, void *fh, struct v4l2_frequency *vf)
1421 {
1422         struct vivid_dev *dev = video_drvdata(file);
1423
1424         if (vf->tuner != 0)
1425                 return -EINVAL;
1426         vf->frequency = dev->tv_freq;
1427         return 0;
1428 }
1429
1430 int vivid_video_s_frequency(struct file *file, void *fh, const struct v4l2_frequency *vf)
1431 {
1432         struct vivid_dev *dev = video_drvdata(file);
1433
1434         if (vf->tuner != 0)
1435                 return -EINVAL;
1436         dev->tv_freq = clamp_t(unsigned, vf->frequency, MIN_TV_FREQ, MAX_TV_FREQ);
1437         if (vivid_is_tv_cap(dev))
1438                 vivid_update_quality(dev);
1439         return 0;
1440 }
1441
1442 int vivid_video_s_tuner(struct file *file, void *fh, const struct v4l2_tuner *vt)
1443 {
1444         struct vivid_dev *dev = video_drvdata(file);
1445
1446         if (vt->index != 0)
1447                 return -EINVAL;
1448         if (vt->audmode > V4L2_TUNER_MODE_LANG1_LANG2)
1449                 return -EINVAL;
1450         dev->tv_audmode = vt->audmode;
1451         return 0;
1452 }
1453
1454 int vivid_video_g_tuner(struct file *file, void *fh, struct v4l2_tuner *vt)
1455 {
1456         struct vivid_dev *dev = video_drvdata(file);
1457         enum tpg_quality qual;
1458
1459         if (vt->index != 0)
1460                 return -EINVAL;
1461
1462         vt->capability = V4L2_TUNER_CAP_NORM | V4L2_TUNER_CAP_STEREO |
1463                          V4L2_TUNER_CAP_LANG1 | V4L2_TUNER_CAP_LANG2;
1464         vt->audmode = dev->tv_audmode;
1465         vt->rangelow = MIN_TV_FREQ;
1466         vt->rangehigh = MAX_TV_FREQ;
1467         qual = vivid_get_quality(dev, &vt->afc);
1468         if (qual == TPG_QUAL_COLOR)
1469                 vt->signal = 0xffff;
1470         else if (qual == TPG_QUAL_GRAY)
1471                 vt->signal = 0x8000;
1472         else
1473                 vt->signal = 0;
1474         if (qual == TPG_QUAL_NOISE) {
1475                 vt->rxsubchans = 0;
1476         } else if (qual == TPG_QUAL_GRAY) {
1477                 vt->rxsubchans = V4L2_TUNER_SUB_MONO;
1478         } else {
1479                 unsigned channel_nr = dev->tv_freq / (6 * 16);
1480                 unsigned options = (dev->std_cap & V4L2_STD_NTSC_M) ? 4 : 3;
1481
1482                 switch (channel_nr % options) {
1483                 case 0:
1484                         vt->rxsubchans = V4L2_TUNER_SUB_MONO;
1485                         break;
1486                 case 1:
1487                         vt->rxsubchans = V4L2_TUNER_SUB_STEREO;
1488                         break;
1489                 case 2:
1490                         if (dev->std_cap & V4L2_STD_NTSC_M)
1491                                 vt->rxsubchans = V4L2_TUNER_SUB_MONO | V4L2_TUNER_SUB_SAP;
1492                         else
1493                                 vt->rxsubchans = V4L2_TUNER_SUB_LANG1 | V4L2_TUNER_SUB_LANG2;
1494                         break;
1495                 case 3:
1496                         vt->rxsubchans = V4L2_TUNER_SUB_STEREO | V4L2_TUNER_SUB_SAP;
1497                         break;
1498                 }
1499         }
1500         strlcpy(vt->name, "TV Tuner", sizeof(vt->name));
1501         return 0;
1502 }
1503
1504 /* Must remain in sync with the vivid_ctrl_standard_strings array */
1505 const v4l2_std_id vivid_standard[] = {
1506         V4L2_STD_NTSC_M,
1507         V4L2_STD_NTSC_M_JP,
1508         V4L2_STD_NTSC_M_KR,
1509         V4L2_STD_NTSC_443,
1510         V4L2_STD_PAL_BG | V4L2_STD_PAL_H,
1511         V4L2_STD_PAL_I,
1512         V4L2_STD_PAL_DK,
1513         V4L2_STD_PAL_M,
1514         V4L2_STD_PAL_N,
1515         V4L2_STD_PAL_Nc,
1516         V4L2_STD_PAL_60,
1517         V4L2_STD_SECAM_B | V4L2_STD_SECAM_G | V4L2_STD_SECAM_H,
1518         V4L2_STD_SECAM_DK,
1519         V4L2_STD_SECAM_L,
1520         V4L2_STD_SECAM_LC,
1521         V4L2_STD_UNKNOWN
1522 };
1523
1524 /* Must remain in sync with the vivid_standard array */
1525 const char * const vivid_ctrl_standard_strings[] = {
1526         "NTSC-M",
1527         "NTSC-M-JP",
1528         "NTSC-M-KR",
1529         "NTSC-443",
1530         "PAL-BGH",
1531         "PAL-I",
1532         "PAL-DK",
1533         "PAL-M",
1534         "PAL-N",
1535         "PAL-Nc",
1536         "PAL-60",
1537         "SECAM-BGH",
1538         "SECAM-DK",
1539         "SECAM-L",
1540         "SECAM-Lc",
1541         NULL,
1542 };
1543
1544 int vidioc_querystd(struct file *file, void *priv, v4l2_std_id *id)
1545 {
1546         struct vivid_dev *dev = video_drvdata(file);
1547
1548         if (!vivid_is_sdtv_cap(dev))
1549                 return -ENODATA;
1550         if (dev->std_signal_mode == NO_SIGNAL ||
1551             dev->std_signal_mode == NO_LOCK) {
1552                 *id = V4L2_STD_UNKNOWN;
1553                 return 0;
1554         }
1555         if (vivid_is_tv_cap(dev) && tpg_g_quality(&dev->tpg) == TPG_QUAL_NOISE) {
1556                 *id = V4L2_STD_UNKNOWN;
1557         } else if (dev->std_signal_mode == CURRENT_STD) {
1558                 *id = dev->std_cap;
1559         } else if (dev->std_signal_mode == SELECTED_STD) {
1560                 *id = dev->query_std;
1561         } else {
1562                 *id = vivid_standard[dev->query_std_last];
1563                 dev->query_std_last = (dev->query_std_last + 1) % ARRAY_SIZE(vivid_standard);
1564         }
1565
1566         return 0;
1567 }
1568
1569 int vivid_vid_cap_s_std(struct file *file, void *priv, v4l2_std_id id)
1570 {
1571         struct vivid_dev *dev = video_drvdata(file);
1572
1573         if (!vivid_is_sdtv_cap(dev))
1574                 return -ENODATA;
1575         if (dev->std_cap == id)
1576                 return 0;
1577         if (vb2_is_busy(&dev->vb_vid_cap_q) || vb2_is_busy(&dev->vb_vbi_cap_q))
1578                 return -EBUSY;
1579         dev->std_cap = id;
1580         vivid_update_format_cap(dev, false);
1581         return 0;
1582 }
1583
1584 static void find_aspect_ratio(u32 width, u32 height,
1585                                u32 *num, u32 *denom)
1586 {
1587         if (!(height % 3) && ((height * 4 / 3) == width)) {
1588                 *num = 4;
1589                 *denom = 3;
1590         } else if (!(height % 9) && ((height * 16 / 9) == width)) {
1591                 *num = 16;
1592                 *denom = 9;
1593         } else if (!(height % 10) && ((height * 16 / 10) == width)) {
1594                 *num = 16;
1595                 *denom = 10;
1596         } else if (!(height % 4) && ((height * 5 / 4) == width)) {
1597                 *num = 5;
1598                 *denom = 4;
1599         } else if (!(height % 9) && ((height * 15 / 9) == width)) {
1600                 *num = 15;
1601                 *denom = 9;
1602         } else { /* default to 16:9 */
1603                 *num = 16;
1604                 *denom = 9;
1605         }
1606 }
1607
1608 static bool valid_cvt_gtf_timings(struct v4l2_dv_timings *timings)
1609 {
1610         struct v4l2_bt_timings *bt = &timings->bt;
1611         u32 total_h_pixel;
1612         u32 total_v_lines;
1613         u32 h_freq;
1614
1615         if (!v4l2_valid_dv_timings(timings, &vivid_dv_timings_cap,
1616                                 NULL, NULL))
1617                 return false;
1618
1619         total_h_pixel = V4L2_DV_BT_FRAME_WIDTH(bt);
1620         total_v_lines = V4L2_DV_BT_FRAME_HEIGHT(bt);
1621
1622         h_freq = (u32)bt->pixelclock / total_h_pixel;
1623
1624         if (bt->standards == 0 || (bt->standards & V4L2_DV_BT_STD_CVT)) {
1625                 if (v4l2_detect_cvt(total_v_lines, h_freq, bt->vsync, bt->width,
1626                                     bt->polarities, bt->interlaced, timings))
1627                         return true;
1628         }
1629
1630         if (bt->standards == 0 || (bt->standards & V4L2_DV_BT_STD_GTF)) {
1631                 struct v4l2_fract aspect_ratio;
1632
1633                 find_aspect_ratio(bt->width, bt->height,
1634                                   &aspect_ratio.numerator,
1635                                   &aspect_ratio.denominator);
1636                 if (v4l2_detect_gtf(total_v_lines, h_freq, bt->vsync,
1637                                     bt->polarities, bt->interlaced,
1638                                     aspect_ratio, timings))
1639                         return true;
1640         }
1641         return false;
1642 }
1643
1644 int vivid_vid_cap_s_dv_timings(struct file *file, void *_fh,
1645                                     struct v4l2_dv_timings *timings)
1646 {
1647         struct vivid_dev *dev = video_drvdata(file);
1648
1649         if (!vivid_is_hdmi_cap(dev))
1650                 return -ENODATA;
1651         if (!v4l2_find_dv_timings_cap(timings, &vivid_dv_timings_cap,
1652                                       0, NULL, NULL) &&
1653             !valid_cvt_gtf_timings(timings))
1654                 return -EINVAL;
1655
1656         if (v4l2_match_dv_timings(timings, &dev->dv_timings_cap, 0, false))
1657                 return 0;
1658         if (vb2_is_busy(&dev->vb_vid_cap_q))
1659                 return -EBUSY;
1660
1661         dev->dv_timings_cap = *timings;
1662         vivid_update_format_cap(dev, false);
1663         return 0;
1664 }
1665
1666 int vidioc_query_dv_timings(struct file *file, void *_fh,
1667                                     struct v4l2_dv_timings *timings)
1668 {
1669         struct vivid_dev *dev = video_drvdata(file);
1670
1671         if (!vivid_is_hdmi_cap(dev))
1672                 return -ENODATA;
1673         if (dev->dv_timings_signal_mode == NO_SIGNAL ||
1674             dev->edid_blocks == 0)
1675                 return -ENOLINK;
1676         if (dev->dv_timings_signal_mode == NO_LOCK)
1677                 return -ENOLCK;
1678         if (dev->dv_timings_signal_mode == OUT_OF_RANGE) {
1679                 timings->bt.pixelclock = vivid_dv_timings_cap.bt.max_pixelclock * 2;
1680                 return -ERANGE;
1681         }
1682         if (dev->dv_timings_signal_mode == CURRENT_DV_TIMINGS) {
1683                 *timings = dev->dv_timings_cap;
1684         } else if (dev->dv_timings_signal_mode == SELECTED_DV_TIMINGS) {
1685                 *timings = v4l2_dv_timings_presets[dev->query_dv_timings];
1686         } else {
1687                 *timings = v4l2_dv_timings_presets[dev->query_dv_timings_last];
1688                 dev->query_dv_timings_last = (dev->query_dv_timings_last + 1) %
1689                                                 dev->query_dv_timings_size;
1690         }
1691         return 0;
1692 }
1693
1694 int vidioc_s_edid(struct file *file, void *_fh,
1695                          struct v4l2_edid *edid)
1696 {
1697         struct vivid_dev *dev = video_drvdata(file);
1698         u16 phys_addr;
1699         unsigned int i;
1700         int ret;
1701
1702         memset(edid->reserved, 0, sizeof(edid->reserved));
1703         if (edid->pad >= dev->num_inputs)
1704                 return -EINVAL;
1705         if (dev->input_type[edid->pad] != HDMI || edid->start_block)
1706                 return -EINVAL;
1707         if (edid->blocks == 0) {
1708                 dev->edid_blocks = 0;
1709                 phys_addr = CEC_PHYS_ADDR_INVALID;
1710                 goto set_phys_addr;
1711         }
1712         if (edid->blocks > dev->edid_max_blocks) {
1713                 edid->blocks = dev->edid_max_blocks;
1714                 return -E2BIG;
1715         }
1716         phys_addr = cec_get_edid_phys_addr(edid->edid, edid->blocks * 128, NULL);
1717         ret = cec_phys_addr_validate(phys_addr, &phys_addr, NULL);
1718         if (ret)
1719                 return ret;
1720
1721         if (vb2_is_busy(&dev->vb_vid_cap_q))
1722                 return -EBUSY;
1723
1724         dev->edid_blocks = edid->blocks;
1725         memcpy(dev->edid, edid->edid, edid->blocks * 128);
1726
1727 set_phys_addr:
1728         /* TODO: a proper hotplug detect cycle should be emulated here */
1729         cec_s_phys_addr(dev->cec_rx_adap, phys_addr, false);
1730
1731         for (i = 0; i < MAX_OUTPUTS && dev->cec_tx_adap[i]; i++)
1732                 cec_s_phys_addr(dev->cec_tx_adap[i],
1733                                 cec_phys_addr_for_input(phys_addr, i + 1),
1734                                 false);
1735         return 0;
1736 }
1737
1738 int vidioc_enum_framesizes(struct file *file, void *fh,
1739                                          struct v4l2_frmsizeenum *fsize)
1740 {
1741         struct vivid_dev *dev = video_drvdata(file);
1742
1743         if (!vivid_is_webcam(dev) && !dev->has_scaler_cap)
1744                 return -EINVAL;
1745         if (vivid_get_format(dev, fsize->pixel_format) == NULL)
1746                 return -EINVAL;
1747         if (vivid_is_webcam(dev)) {
1748                 if (fsize->index >= ARRAY_SIZE(webcam_sizes))
1749                         return -EINVAL;
1750                 fsize->type = V4L2_FRMSIZE_TYPE_DISCRETE;
1751                 fsize->discrete = webcam_sizes[fsize->index];
1752                 return 0;
1753         }
1754         if (fsize->index)
1755                 return -EINVAL;
1756         fsize->type = V4L2_FRMSIZE_TYPE_STEPWISE;
1757         fsize->stepwise.min_width = MIN_WIDTH;
1758         fsize->stepwise.max_width = MAX_WIDTH * MAX_ZOOM;
1759         fsize->stepwise.step_width = 2;
1760         fsize->stepwise.min_height = MIN_HEIGHT;
1761         fsize->stepwise.max_height = MAX_HEIGHT * MAX_ZOOM;
1762         fsize->stepwise.step_height = 2;
1763         return 0;
1764 }
1765
1766 /* timeperframe is arbitrary and continuous */
1767 int vidioc_enum_frameintervals(struct file *file, void *priv,
1768                                              struct v4l2_frmivalenum *fival)
1769 {
1770         struct vivid_dev *dev = video_drvdata(file);
1771         const struct vivid_fmt *fmt;
1772         int i;
1773
1774         fmt = vivid_get_format(dev, fival->pixel_format);
1775         if (!fmt)
1776                 return -EINVAL;
1777
1778         if (!vivid_is_webcam(dev)) {
1779                 if (fival->index)
1780                         return -EINVAL;
1781                 if (fival->width < MIN_WIDTH || fival->width > MAX_WIDTH * MAX_ZOOM)
1782                         return -EINVAL;
1783                 if (fival->height < MIN_HEIGHT || fival->height > MAX_HEIGHT * MAX_ZOOM)
1784                         return -EINVAL;
1785                 fival->type = V4L2_FRMIVAL_TYPE_DISCRETE;
1786                 fival->discrete = dev->timeperframe_vid_cap;
1787                 return 0;
1788         }
1789
1790         for (i = 0; i < ARRAY_SIZE(webcam_sizes); i++)
1791                 if (fival->width == webcam_sizes[i].width &&
1792                     fival->height == webcam_sizes[i].height)
1793                         break;
1794         if (i == ARRAY_SIZE(webcam_sizes))
1795                 return -EINVAL;
1796         if (fival->index >= 2 * (VIVID_WEBCAM_SIZES - i))
1797                 return -EINVAL;
1798         fival->type = V4L2_FRMIVAL_TYPE_DISCRETE;
1799         fival->discrete = webcam_intervals[fival->index];
1800         return 0;
1801 }
1802
1803 int vivid_vid_cap_g_parm(struct file *file, void *priv,
1804                           struct v4l2_streamparm *parm)
1805 {
1806         struct vivid_dev *dev = video_drvdata(file);
1807
1808         if (parm->type != (dev->multiplanar ?
1809                            V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE :
1810                            V4L2_BUF_TYPE_VIDEO_CAPTURE))
1811                 return -EINVAL;
1812
1813         parm->parm.capture.capability   = V4L2_CAP_TIMEPERFRAME;
1814         parm->parm.capture.timeperframe = dev->timeperframe_vid_cap;
1815         parm->parm.capture.readbuffers  = 1;
1816         return 0;
1817 }
1818
1819 #define FRACT_CMP(a, OP, b)     \
1820         ((u64)(a).numerator * (b).denominator  OP  (u64)(b).numerator * (a).denominator)
1821
1822 int vivid_vid_cap_s_parm(struct file *file, void *priv,
1823                           struct v4l2_streamparm *parm)
1824 {
1825         struct vivid_dev *dev = video_drvdata(file);
1826         unsigned ival_sz = 2 * (VIVID_WEBCAM_SIZES - dev->webcam_size_idx);
1827         struct v4l2_fract tpf;
1828         unsigned i;
1829
1830         if (parm->type != (dev->multiplanar ?
1831                            V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE :
1832                            V4L2_BUF_TYPE_VIDEO_CAPTURE))
1833                 return -EINVAL;
1834         if (!vivid_is_webcam(dev))
1835                 return vivid_vid_cap_g_parm(file, priv, parm);
1836
1837         tpf = parm->parm.capture.timeperframe;
1838
1839         if (tpf.denominator == 0)
1840                 tpf = webcam_intervals[ival_sz - 1];
1841         for (i = 0; i < ival_sz; i++)
1842                 if (FRACT_CMP(tpf, >=, webcam_intervals[i]))
1843                         break;
1844         if (i == ival_sz)
1845                 i = ival_sz - 1;
1846         dev->webcam_ival_idx = i;
1847         tpf = webcam_intervals[dev->webcam_ival_idx];
1848         tpf = FRACT_CMP(tpf, <, tpf_min) ? tpf_min : tpf;
1849         tpf = FRACT_CMP(tpf, >, tpf_max) ? tpf_max : tpf;
1850
1851         /* resync the thread's timings */
1852         dev->cap_seq_resync = true;
1853         dev->timeperframe_vid_cap = tpf;
1854         parm->parm.capture.capability   = V4L2_CAP_TIMEPERFRAME;
1855         parm->parm.capture.timeperframe = tpf;
1856         parm->parm.capture.readbuffers  = 1;
1857         return 0;
1858 }