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

   1 // SPDX-License-Identifier: GPL-2.0-only
   2 /*
   3  * vivid-vid-cap.c - video capture support functions.
   4  *
   5  * Copyright 2014 Cisco Systems, Inc. and/or its affiliates. All rights reserved.
   6  */
   7
   8 #include <linux/errno.h>
   9 #include <linux/kernel.h>
  10 #include <linux/sched.h>
  11 #include <linux/vmalloc.h>
  12 #include <linux/videodev2.h>
  13 #include <linux/v4l2-dv-timings.h>
  14 #include <media/v4l2-common.h>
  15 #include <media/v4l2-event.h>
  16 #include <media/v4l2-dv-timings.h>
  17 #include <media/v4l2-rect.h>
  18
  19 #include "vivid-core.h"
  20 #include "vivid-vid-common.h"
  21 #include "vivid-kthread-cap.h"
  22 #include "vivid-vid-cap.h"
  23
  24 static const struct vivid_fmt formats_ovl[] = {
  25         {
  26                 .fourcc   = V4L2_PIX_FMT_RGB565, /* gggbbbbb rrrrrggg */
  27                 .vdownsampling = { 1 },
  28                 .bit_depth = { 16 },
  29                 .planes   = 1,
  30                 .buffers = 1,
  31         },
  32         {
  33                 .fourcc   = V4L2_PIX_FMT_XRGB555, /* gggbbbbb arrrrrgg */
  34                 .vdownsampling = { 1 },
  35                 .bit_depth = { 16 },
  36                 .planes   = 1,
  37                 .buffers = 1,
  38         },
  39         {
  40                 .fourcc   = V4L2_PIX_FMT_ARGB555, /* gggbbbbb arrrrrgg */
  41                 .vdownsampling = { 1 },
  42                 .bit_depth = { 16 },
  43                 .planes   = 1,
  44                 .buffers = 1,
  45         },
  46 };
  47
  48 /* The number of discrete webcam framesizes */
  49 #define VIVID_WEBCAM_SIZES 6
  50 /* The number of discrete webcam frameintervals */
  51 #define VIVID_WEBCAM_IVALS (VIVID_WEBCAM_SIZES * 2)
  52
  53 /* Sizes must be in increasing order */
  54 static const struct v4l2_frmsize_discrete webcam_sizes[VIVID_WEBCAM_SIZES] = {
  55         {  320, 180 },
  56         {  640, 360 },
  57         {  640, 480 },
  58         { 1280, 720 },
  59         { 1920, 1080 },
  60         { 3840, 2160 },
  61 };
  62
  63 /*
  64  * Intervals must be in increasing order and there must be twice as many
  65  * elements in this array as there are in webcam_sizes.
  66  */
  67 static const struct v4l2_fract webcam_intervals[VIVID_WEBCAM_IVALS] = {
  68         {  1, 1 },
  69         {  1, 2 },
  70         {  1, 4 },
  71         {  1, 5 },
  72         {  1, 10 },
  73         {  2, 25 },
  74         {  1, 15 },
  75         {  1, 25 },
  76         {  1, 30 },
  77         {  1, 40 },
  78         {  1, 50 },
  79         {  1, 60 },
  80 };
  81
  82 static int vid_cap_queue_setup(struct vb2_queue *vq,
  83                        unsigned *nbuffers, unsigned *nplanes,
  84                        unsigned sizes[], struct device *alloc_devs[])
  85 {
  86         struct vivid_dev *dev = vb2_get_drv_priv(vq);
  87         unsigned buffers = tpg_g_buffers(&dev->tpg);
  88         unsigned h = dev->fmt_cap_rect.height;
  89         unsigned p;
  90
  91         if (dev->field_cap == V4L2_FIELD_ALTERNATE) {
  92                 /*
  93                  * You cannot use read() with FIELD_ALTERNATE since the field
  94                  * information (TOP/BOTTOM) cannot be passed back to the user.
  95                  */
  96                 if (vb2_fileio_is_active(vq))
  97                         return -EINVAL;
  98         }
  99
 100         if (dev->queue_setup_error) {
 101                 /*
 102                  * Error injection: test what happens if queue_setup() returns
 103                  * an error.
 104                  */
 105                 dev->queue_setup_error = false;
 106                 return -EINVAL;
 107         }
 108         if (*nplanes) {
 109                 /*
 110                  * Check if the number of requested planes match
 111                  * the number of buffers in the current format. You can't mix that.
 112                  */
 113                 if (*nplanes != buffers)
 114                         return -EINVAL;
 115                 for (p = 0; p < buffers; p++) {
 116                         if (sizes[p] < tpg_g_line_width(&dev->tpg, p) * h +
 117                                                 dev->fmt_cap->data_offset[p])
 118                                 return -EINVAL;
 119                 }
 120         } else {
 121                 for (p = 0; p < buffers; p++)
 122                         sizes[p] = (tpg_g_line_width(&dev->tpg, p) * h) /
 123                                         dev->fmt_cap->vdownsampling[p] +
 124                                         dev->fmt_cap->data_offset[p];
 125         }
 126
 127         if (vq->num_buffers + *nbuffers < 2)
 128                 *nbuffers = 2 - vq->num_buffers;
 129
 130         *nplanes = buffers;
 131
 132         dprintk(dev, 1, "%s: count=%d\n", __func__, *nbuffers);
 133         for (p = 0; p < buffers; p++)
 134                 dprintk(dev, 1, "%s: size[%u]=%u\n", __func__, p, sizes[p]);
 135
 136         return 0;
 137 }
 138
 139 static int vid_cap_buf_prepare(struct vb2_buffer *vb)
 140 {
 141         struct vivid_dev *dev = vb2_get_drv_priv(vb->vb2_queue);
 142         unsigned long size;
 143         unsigned buffers = tpg_g_buffers(&dev->tpg);
 144         unsigned p;
 145
 146         dprintk(dev, 1, "%s\n", __func__);
 147
 148         if (WARN_ON(NULL == dev->fmt_cap))
 149                 return -EINVAL;
 150
 151         if (dev->buf_prepare_error) {
 152                 /*
 153                  * Error injection: test what happens if buf_prepare() returns
 154                  * an error.
 155                  */
 156                 dev->buf_prepare_error = false;
 157                 return -EINVAL;
 158         }
 159         for (p = 0; p < buffers; p++) {
 160                 size = (tpg_g_line_width(&dev->tpg, p) *
 161                         dev->fmt_cap_rect.height) /
 162                         dev->fmt_cap->vdownsampling[p] +
 163                         dev->fmt_cap->data_offset[p];
 164
 165                 if (vb2_plane_size(vb, p) < size) {
 166                         dprintk(dev, 1, "%s data will not fit into plane %u (%lu < %lu)\n",
 167                                         __func__, p, vb2_plane_size(vb, p), size);
 168                         return -EINVAL;
 169                 }
 170
 171                 vb2_set_plane_payload(vb, p, size);
 172                 vb->planes[p].data_offset = dev->fmt_cap->data_offset[p];
 173         }
 174
 175         return 0;
 176 }
 177
 178 static void vid_cap_buf_finish(struct vb2_buffer *vb)
 179 {
 180         struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
 181         struct vivid_dev *dev = vb2_get_drv_priv(vb->vb2_queue);
 182         struct v4l2_timecode *tc = &vbuf->timecode;
 183         unsigned fps = 25;
 184         unsigned seq = vbuf->sequence;
 185
 186         if (!vivid_is_sdtv_cap(dev))
 187                 return;
 188
 189         /*
 190          * Set the timecode. Rarely used, so it is interesting to
 191          * test this.
 192          */
 193         vbuf->flags |= V4L2_BUF_FLAG_TIMECODE;
 194         if (dev->std_cap[dev->input] & V4L2_STD_525_60)
 195                 fps = 30;
 196         tc->type = (fps == 30) ? V4L2_TC_TYPE_30FPS : V4L2_TC_TYPE_25FPS;
 197         tc->flags = 0;
 198         tc->frames = seq % fps;
 199         tc->seconds = (seq / fps) % 60;
 200         tc->minutes = (seq / (60 * fps)) % 60;
 201         tc->hours = (seq / (60 * 60 * fps)) % 24;
 202 }
 203
 204 static void vid_cap_buf_queue(struct vb2_buffer *vb)
 205 {
 206         struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
 207         struct vivid_dev *dev = vb2_get_drv_priv(vb->vb2_queue);
 208         struct vivid_buffer *buf = container_of(vbuf, struct vivid_buffer, vb);
 209
 210         dprintk(dev, 1, "%s\n", __func__);
 211
 212         spin_lock(&dev->slock);
 213         list_add_tail(&buf->list, &dev->vid_cap_active);
 214         spin_unlock(&dev->slock);
 215 }
 216
 217 static int vid_cap_start_streaming(struct vb2_queue *vq, unsigned count)
 218 {
 219         struct vivid_dev *dev = vb2_get_drv_priv(vq);
 220         unsigned i;
 221         int err;
 222
 223         if (vb2_is_streaming(&dev->vb_vid_out_q))
 224                 dev->can_loop_video = vivid_vid_can_loop(dev);
 225
 226         if (dev->kthread_vid_cap)
 227                 return 0;
 228
 229         dev->vid_cap_seq_count = 0;
 230         dprintk(dev, 1, "%s\n", __func__);
 231         for (i = 0; i < VIDEO_MAX_FRAME; i++)
 232                 dev->must_blank[i] = tpg_g_perc_fill(&dev->tpg) < 100;
 233         if (dev->start_streaming_error) {
 234                 dev->start_streaming_error = false;
 235                 err = -EINVAL;
 236         } else {
 237                 err = vivid_start_generating_vid_cap(dev, &dev->vid_cap_streaming);
 238         }
 239         if (err) {
 240                 struct vivid_buffer *buf, *tmp;
 241
 242                 list_for_each_entry_safe(buf, tmp, &dev->vid_cap_active, list) {
 243                         list_del(&buf->list);
 244                         vb2_buffer_done(&buf->vb.vb2_buf,
 245                                         VB2_BUF_STATE_QUEUED);
 246                 }
 247         }
 248         return err;
 249 }
 250
 251 /* abort streaming and wait for last buffer */
 252 static void vid_cap_stop_streaming(struct vb2_queue *vq)
 253 {
 254         struct vivid_dev *dev = vb2_get_drv_priv(vq);
 255
 256         dprintk(dev, 1, "%s\n", __func__);
 257         vivid_stop_generating_vid_cap(dev, &dev->vid_cap_streaming);
 258         dev->can_loop_video = false;
 259 }
 260
 261 static void vid_cap_buf_request_complete(struct vb2_buffer *vb)
 262 {
 263         struct vivid_dev *dev = vb2_get_drv_priv(vb->vb2_queue);
 264
 265         v4l2_ctrl_request_complete(vb->req_obj.req, &dev->ctrl_hdl_vid_cap);
 266 }
 267
 268 const struct vb2_ops vivid_vid_cap_qops = {
 269         .queue_setup            = vid_cap_queue_setup,
 270         .buf_prepare            = vid_cap_buf_prepare,
 271         .buf_finish             = vid_cap_buf_finish,
 272         .buf_queue              = vid_cap_buf_queue,
 273         .start_streaming        = vid_cap_start_streaming,
 274         .stop_streaming         = vid_cap_stop_streaming,
 275         .buf_request_complete   = vid_cap_buf_request_complete,
 276         .wait_prepare           = vb2_ops_wait_prepare,
 277         .wait_finish            = vb2_ops_wait_finish,
 278 };
 279
 280 /*
 281  * Determine the 'picture' quality based on the current TV frequency: either
 282  * COLOR for a good 'signal', GRAY (grayscale picture) for a slightly off
 283  * signal or NOISE for no signal.
 284  */
 285 void vivid_update_quality(struct vivid_dev *dev)
 286 {
 287         unsigned freq_modulus;
 288
 289         if (dev->loop_video && (vivid_is_svid_cap(dev) || vivid_is_hdmi_cap(dev))) {
 290                 /*
 291                  * The 'noise' will only be replaced by the actual video
 292                  * if the output video matches the input video settings.
 293                  */
 294                 tpg_s_quality(&dev->tpg, TPG_QUAL_NOISE, 0);
 295                 return;
 296         }
 297         if (vivid_is_hdmi_cap(dev) &&
 298             VIVID_INVALID_SIGNAL(dev->dv_timings_signal_mode[dev->input])) {
 299                 tpg_s_quality(&dev->tpg, TPG_QUAL_NOISE, 0);
 300                 return;
 301         }
 302         if (vivid_is_sdtv_cap(dev) &&
 303             VIVID_INVALID_SIGNAL(dev->std_signal_mode[dev->input])) {
 304                 tpg_s_quality(&dev->tpg, TPG_QUAL_NOISE, 0);
 305                 return;
 306         }
 307         if (!vivid_is_tv_cap(dev)) {
 308                 tpg_s_quality(&dev->tpg, TPG_QUAL_COLOR, 0);
 309                 return;
 310         }
 311
 312         /*
 313          * There is a fake channel every 6 MHz at 49.25, 55.25, etc.
 314          * From +/- 0.25 MHz around the channel there is color, and from
 315          * +/- 1 MHz there is grayscale (chroma is lost).
 316          * Everywhere else it is just noise.
 317          */
 318         freq_modulus = (dev->tv_freq - 676 /* (43.25-1) * 16 */) % (6 * 16);
 319         if (freq_modulus > 2 * 16) {
 320                 tpg_s_quality(&dev->tpg, TPG_QUAL_NOISE,
 321                         next_pseudo_random32(dev->tv_freq ^ 0x55) & 0x3f);
 322                 return;
 323         }
 324         if (freq_modulus < 12 /*0.75 * 16*/ || freq_modulus > 20 /*1.25 * 16*/)
 325                 tpg_s_quality(&dev->tpg, TPG_QUAL_GRAY, 0);
 326         else
 327                 tpg_s_quality(&dev->tpg, TPG_QUAL_COLOR, 0);
 328 }
 329
 330 /*
 331  * Get the current picture quality and the associated afc value.
 332  */
 333 static enum tpg_quality vivid_get_quality(struct vivid_dev *dev, s32 *afc)
 334 {
 335         unsigned freq_modulus;
 336
 337         if (afc)
 338                 *afc = 0;
 339         if (tpg_g_quality(&dev->tpg) == TPG_QUAL_COLOR ||
 340             tpg_g_quality(&dev->tpg) == TPG_QUAL_NOISE)
 341                 return tpg_g_quality(&dev->tpg);
 342
 343         /*
 344          * There is a fake channel every 6 MHz at 49.25, 55.25, etc.
 345          * From +/- 0.25 MHz around the channel there is color, and from
 346          * +/- 1 MHz there is grayscale (chroma is lost).
 347          * Everywhere else it is just gray.
 348          */
 349         freq_modulus = (dev->tv_freq - 676 /* (43.25-1) * 16 */) % (6 * 16);
 350         if (afc)
 351                 *afc = freq_modulus - 1 * 16;
 352         return TPG_QUAL_GRAY;
 353 }
 354
 355 enum tpg_video_aspect vivid_get_video_aspect(const struct vivid_dev *dev)
 356 {
 357         if (vivid_is_sdtv_cap(dev))
 358                 return dev->std_aspect_ratio[dev->input];
 359
 360         if (vivid_is_hdmi_cap(dev))
 361                 return dev->dv_timings_aspect_ratio[dev->input];
 362
 363         return TPG_VIDEO_ASPECT_IMAGE;
 364 }
 365
 366 static enum tpg_pixel_aspect vivid_get_pixel_aspect(const struct vivid_dev *dev)
 367 {
 368         if (vivid_is_sdtv_cap(dev))
 369                 return (dev->std_cap[dev->input] & V4L2_STD_525_60) ?
 370                         TPG_PIXEL_ASPECT_NTSC : TPG_PIXEL_ASPECT_PAL;
 371
 372         if (vivid_is_hdmi_cap(dev) &&
 373             dev->src_rect.width == 720 && dev->src_rect.height <= 576)
 374                 return dev->src_rect.height == 480 ?
 375                         TPG_PIXEL_ASPECT_NTSC : TPG_PIXEL_ASPECT_PAL;
 376
 377         return TPG_PIXEL_ASPECT_SQUARE;
 378 }
 379
 380 /*
 381  * Called whenever the format has to be reset which can occur when
 382  * changing inputs, standard, timings, etc.
 383  */
 384 void vivid_update_format_cap(struct vivid_dev *dev, bool keep_controls)
 385 {
 386         struct v4l2_bt_timings *bt = &dev->dv_timings_cap[dev->input].bt;
 387         unsigned size;
 388         u64 pixelclock;
 389
 390         switch (dev->input_type[dev->input]) {
 391         case WEBCAM:
 392         default:
 393                 dev->src_rect.width = webcam_sizes[dev->webcam_size_idx].width;
 394                 dev->src_rect.height = webcam_sizes[dev->webcam_size_idx].height;
 395                 dev->timeperframe_vid_cap = webcam_intervals[dev->webcam_ival_idx];
 396                 dev->field_cap = V4L2_FIELD_NONE;
 397                 tpg_s_rgb_range(&dev->tpg, V4L2_DV_RGB_RANGE_AUTO);
 398                 break;
 399         case TV:
 400         case SVID:
 401                 dev->field_cap = dev->tv_field_cap;
 402                 dev->src_rect.width = 720;
 403                 if (dev->std_cap[dev->input] & V4L2_STD_525_60) {
 404                         dev->src_rect.height = 480;
 405                         dev->timeperframe_vid_cap = (struct v4l2_fract) { 1001, 30000 };
 406                         dev->service_set_cap = V4L2_SLICED_CAPTION_525;
 407                 } else {
 408                         dev->src_rect.height = 576;
 409                         dev->timeperframe_vid_cap = (struct v4l2_fract) { 1000, 25000 };
 410                         dev->service_set_cap = V4L2_SLICED_WSS_625 | V4L2_SLICED_TELETEXT_B;
 411                 }
 412                 tpg_s_rgb_range(&dev->tpg, V4L2_DV_RGB_RANGE_AUTO);
 413                 break;
 414         case HDMI:
 415                 dev->src_rect.width = bt->width;
 416                 dev->src_rect.height = bt->height;
 417                 size = V4L2_DV_BT_FRAME_WIDTH(bt) * V4L2_DV_BT_FRAME_HEIGHT(bt);
 418                 if (dev->reduced_fps && can_reduce_fps(bt)) {
 419                         pixelclock = div_u64(bt->pixelclock * 1000, 1001);
 420                         bt->flags |= V4L2_DV_FL_REDUCED_FPS;
 421                 } else {
 422                         pixelclock = bt->pixelclock;
 423                         bt->flags &= ~V4L2_DV_FL_REDUCED_FPS;
 424                 }
 425                 dev->timeperframe_vid_cap = (struct v4l2_fract) {
 426                         size / 100, (u32)pixelclock / 100
 427                 };
 428                 if (bt->interlaced)
 429                         dev->field_cap = V4L2_FIELD_ALTERNATE;
 430                 else
 431                         dev->field_cap = V4L2_FIELD_NONE;
 432
 433                 /*
 434                  * We can be called from within s_ctrl, in that case we can't
 435                  * set/get controls. Luckily we don't need to in that case.
 436                  */
 437                 if (keep_controls || !dev->colorspace)
 438                         break;
 439                 if (bt->flags & V4L2_DV_FL_IS_CE_VIDEO) {
 440                         if (bt->width == 720 && bt->height <= 576)
 441                                 v4l2_ctrl_s_ctrl(dev->colorspace, VIVID_CS_170M);
 442                         else
 443                                 v4l2_ctrl_s_ctrl(dev->colorspace, VIVID_CS_709);
 444                         v4l2_ctrl_s_ctrl(dev->real_rgb_range_cap, 1);
 445                 } else {
 446                         v4l2_ctrl_s_ctrl(dev->colorspace, VIVID_CS_SRGB);
 447                         v4l2_ctrl_s_ctrl(dev->real_rgb_range_cap, 0);
 448                 }
 449                 tpg_s_rgb_range(&dev->tpg, v4l2_ctrl_g_ctrl(dev->rgb_range_cap));
 450                 break;
 451         }
 452         vfree(dev->bitmap_cap);
 453         dev->bitmap_cap = NULL;
 454         vivid_update_quality(dev);
 455         tpg_reset_source(&dev->tpg, dev->src_rect.width, dev->src_rect.height, dev->field_cap);
 456         dev->crop_cap = dev->src_rect;
 457         dev->crop_bounds_cap = dev->src_rect;
 458         dev->compose_cap = dev->crop_cap;
 459         if (V4L2_FIELD_HAS_T_OR_B(dev->field_cap))
 460                 dev->compose_cap.height /= 2;
 461         dev->fmt_cap_rect = dev->compose_cap;
 462         tpg_s_video_aspect(&dev->tpg, vivid_get_video_aspect(dev));
 463         tpg_s_pixel_aspect(&dev->tpg, vivid_get_pixel_aspect(dev));
 464         tpg_update_mv_step(&dev->tpg);
 465 }
 466
 467 /* Map the field to something that is valid for the current input */
 468 static enum v4l2_field vivid_field_cap(struct vivid_dev *dev, enum v4l2_field field)
 469 {
 470         if (vivid_is_sdtv_cap(dev)) {
 471                 switch (field) {
 472                 case V4L2_FIELD_INTERLACED_TB:
 473                 case V4L2_FIELD_INTERLACED_BT:
 474                 case V4L2_FIELD_SEQ_TB:
 475                 case V4L2_FIELD_SEQ_BT:
 476                 case V4L2_FIELD_TOP:
 477                 case V4L2_FIELD_BOTTOM:
 478                 case V4L2_FIELD_ALTERNATE:
 479                         return field;
 480                 case V4L2_FIELD_INTERLACED:
 481                 default:
 482                         return V4L2_FIELD_INTERLACED;
 483                 }
 484         }
 485         if (vivid_is_hdmi_cap(dev))
 486                 return dev->dv_timings_cap[dev->input].bt.interlaced ?
 487                         V4L2_FIELD_ALTERNATE : V4L2_FIELD_NONE;
 488         return V4L2_FIELD_NONE;
 489 }
 490
 491 static unsigned vivid_colorspace_cap(struct vivid_dev *dev)
 492 {
 493         if (!dev->loop_video || vivid_is_webcam(dev) || vivid_is_tv_cap(dev))
 494                 return tpg_g_colorspace(&dev->tpg);
 495         return dev->colorspace_out;
 496 }
 497
 498 static unsigned vivid_xfer_func_cap(struct vivid_dev *dev)
 499 {
 500         if (!dev->loop_video || vivid_is_webcam(dev) || vivid_is_tv_cap(dev))
 501                 return tpg_g_xfer_func(&dev->tpg);
 502         return dev->xfer_func_out;
 503 }
 504
 505 static unsigned vivid_ycbcr_enc_cap(struct vivid_dev *dev)
 506 {
 507         if (!dev->loop_video || vivid_is_webcam(dev) || vivid_is_tv_cap(dev))
 508                 return tpg_g_ycbcr_enc(&dev->tpg);
 509         return dev->ycbcr_enc_out;
 510 }
 511
 512 static unsigned int vivid_hsv_enc_cap(struct vivid_dev *dev)
 513 {
 514         if (!dev->loop_video || vivid_is_webcam(dev) || vivid_is_tv_cap(dev))
 515                 return tpg_g_hsv_enc(&dev->tpg);
 516         return dev->hsv_enc_out;
 517 }
 518
 519 static unsigned vivid_quantization_cap(struct vivid_dev *dev)
 520 {
 521         if (!dev->loop_video || vivid_is_webcam(dev) || vivid_is_tv_cap(dev))
 522                 return tpg_g_quantization(&dev->tpg);
 523         return dev->quantization_out;
 524 }
 525
 526 int vivid_g_fmt_vid_cap(struct file *file, void *priv,
 527                                         struct v4l2_format *f)
 528 {
 529         struct vivid_dev *dev = video_drvdata(file);
 530         struct v4l2_pix_format_mplane *mp = &f->fmt.pix_mp;
 531         unsigned p;
 532
 533         mp->width        = dev->fmt_cap_rect.width;
 534         mp->height       = dev->fmt_cap_rect.height;
 535         mp->field        = dev->field_cap;
 536         mp->pixelformat  = dev->fmt_cap->fourcc;
 537         mp->colorspace   = vivid_colorspace_cap(dev);
 538         mp->xfer_func    = vivid_xfer_func_cap(dev);
 539         if (dev->fmt_cap->color_enc == TGP_COLOR_ENC_HSV)
 540                 mp->hsv_enc    = vivid_hsv_enc_cap(dev);
 541         else
 542                 mp->ycbcr_enc    = vivid_ycbcr_enc_cap(dev);
 543         mp->quantization = vivid_quantization_cap(dev);
 544         mp->num_planes = dev->fmt_cap->buffers;
 545         for (p = 0; p < mp->num_planes; p++) {
 546                 mp->plane_fmt[p].bytesperline = tpg_g_bytesperline(&dev->tpg, p);
 547                 mp->plane_fmt[p].sizeimage =
 548                         (tpg_g_line_width(&dev->tpg, p) * mp->height) /
 549                         dev->fmt_cap->vdownsampling[p] +
 550                         dev->fmt_cap->data_offset[p];
 551         }
 552         return 0;
 553 }
 554
 555 int vivid_try_fmt_vid_cap(struct file *file, void *priv,
 556                         struct v4l2_format *f)
 557 {
 558         struct v4l2_pix_format_mplane *mp = &f->fmt.pix_mp;
 559         struct v4l2_plane_pix_format *pfmt = mp->plane_fmt;
 560         struct vivid_dev *dev = video_drvdata(file);
 561         const struct vivid_fmt *fmt;
 562         unsigned bytesperline, max_bpl;
 563         unsigned factor = 1;
 564         unsigned w, h;
 565         unsigned p;
 566
 567         fmt = vivid_get_format(dev, mp->pixelformat);
 568         if (!fmt) {
 569                 dprintk(dev, 1, "Fourcc format (0x%08x) unknown.\n",
 570                         mp->pixelformat);
 571                 mp->pixelformat = V4L2_PIX_FMT_YUYV;
 572                 fmt = vivid_get_format(dev, mp->pixelformat);
 573         }
 574
 575         mp->field = vivid_field_cap(dev, mp->field);
 576         if (vivid_is_webcam(dev)) {
 577                 const struct v4l2_frmsize_discrete *sz =
 578                         v4l2_find_nearest_size(webcam_sizes,
 579                                                VIVID_WEBCAM_SIZES, width,
 580                                                height, mp->width, mp->height);
 581
 582                 w = sz->width;
 583                 h = sz->height;
 584         } else if (vivid_is_sdtv_cap(dev)) {
 585                 w = 720;
 586                 h = (dev->std_cap[dev->input] & V4L2_STD_525_60) ? 480 : 576;
 587         } else {
 588                 w = dev->src_rect.width;
 589                 h = dev->src_rect.height;
 590         }
 591         if (V4L2_FIELD_HAS_T_OR_B(mp->field))
 592                 factor = 2;
 593         if (vivid_is_webcam(dev) ||
 594             (!dev->has_scaler_cap && !dev->has_crop_cap && !dev->has_compose_cap)) {
 595                 mp->width = w;
 596                 mp->height = h / factor;
 597         } else {
 598                 struct v4l2_rect r = { 0, 0, mp->width, mp->height * factor };
 599
 600                 v4l2_rect_set_min_size(&r, &vivid_min_rect);
 601                 v4l2_rect_set_max_size(&r, &vivid_max_rect);
 602                 if (dev->has_scaler_cap && !dev->has_compose_cap) {
 603                         struct v4l2_rect max_r = { 0, 0, MAX_ZOOM * w, MAX_ZOOM * h };
 604
 605                         v4l2_rect_set_max_size(&r, &max_r);
 606                 } else if (!dev->has_scaler_cap && dev->has_crop_cap && !dev->has_compose_cap) {
 607                         v4l2_rect_set_max_size(&r, &dev->src_rect);
 608                 } else if (!dev->has_scaler_cap && !dev->has_crop_cap) {
 609                         v4l2_rect_set_min_size(&r, &dev->src_rect);
 610                 }
 611                 mp->width = r.width;
 612                 mp->height = r.height / factor;
 613         }
 614
 615         /* This driver supports custom bytesperline values */
 616
 617         mp->num_planes = fmt->buffers;
 618         for (p = 0; p < fmt->buffers; p++) {
 619                 /* Calculate the minimum supported bytesperline value */
 620                 bytesperline = (mp->width * fmt->bit_depth[p]) >> 3;
 621                 /* Calculate the maximum supported bytesperline value */
 622                 max_bpl = (MAX_ZOOM * MAX_WIDTH * fmt->bit_depth[p]) >> 3;
 623
 624                 if (pfmt[p].bytesperline > max_bpl)
 625                         pfmt[p].bytesperline = max_bpl;
 626                 if (pfmt[p].bytesperline < bytesperline)
 627                         pfmt[p].bytesperline = bytesperline;
 628
 629                 pfmt[p].sizeimage = (pfmt[p].bytesperline * mp->height) /
 630                                 fmt->vdownsampling[p] + fmt->data_offset[p];
 631
 632                 memset(pfmt[p].reserved, 0, sizeof(pfmt[p].reserved));
 633         }
 634         for (p = fmt->buffers; p < fmt->planes; p++)
 635                 pfmt[0].sizeimage += (pfmt[0].bytesperline * mp->height *
 636                         (fmt->bit_depth[p] / fmt->vdownsampling[p])) /
 637                         (fmt->bit_depth[0] / fmt->vdownsampling[0]);
 638
 639         mp->colorspace = vivid_colorspace_cap(dev);
 640         if (fmt->color_enc == TGP_COLOR_ENC_HSV)
 641                 mp->hsv_enc = vivid_hsv_enc_cap(dev);
 642         else
 643                 mp->ycbcr_enc = vivid_ycbcr_enc_cap(dev);
 644         mp->xfer_func = vivid_xfer_func_cap(dev);
 645         mp->quantization = vivid_quantization_cap(dev);
 646         memset(mp->reserved, 0, sizeof(mp->reserved));
 647         return 0;
 648 }
 649
 650 int vivid_s_fmt_vid_cap(struct file *file, void *priv,
 651                                         struct v4l2_format *f)
 652 {
 653         struct v4l2_pix_format_mplane *mp = &f->fmt.pix_mp;
 654         struct vivid_dev *dev = video_drvdata(file);
 655         struct v4l2_rect *crop = &dev->crop_cap;
 656         struct v4l2_rect *compose = &dev->compose_cap;
 657         struct vb2_queue *q = &dev->vb_vid_cap_q;
 658         int ret = vivid_try_fmt_vid_cap(file, priv, f);
 659         unsigned factor = 1;
 660         unsigned p;
 661         unsigned i;
 662
 663         if (ret < 0)
 664                 return ret;
 665
 666         if (vb2_is_busy(q)) {
 667                 dprintk(dev, 1, "%s device busy\n", __func__);
 668                 return -EBUSY;
 669         }
 670
 671         if (dev->overlay_cap_owner && dev->fb_cap.fmt.pixelformat != mp->pixelformat) {
 672                 dprintk(dev, 1, "overlay is active, can't change pixelformat\n");
 673                 return -EBUSY;
 674         }
 675
 676         dev->fmt_cap = vivid_get_format(dev, mp->pixelformat);
 677         if (V4L2_FIELD_HAS_T_OR_B(mp->field))
 678                 factor = 2;
 679
 680         /* Note: the webcam input doesn't support scaling, cropping or composing */
 681
 682         if (!vivid_is_webcam(dev) &&
 683             (dev->has_scaler_cap || dev->has_crop_cap || dev->has_compose_cap)) {
 684                 struct v4l2_rect r = { 0, 0, mp->width, mp->height };
 685
 686                 if (dev->has_scaler_cap) {
 687                         if (dev->has_compose_cap)
 688                                 v4l2_rect_map_inside(compose, &r);
 689                         else
 690                                 *compose = r;
 691                         if (dev->has_crop_cap && !dev->has_compose_cap) {
 692                                 struct v4l2_rect min_r = {
 693                                         0, 0,
 694                                         r.width / MAX_ZOOM,
 695                                         factor * r.height / MAX_ZOOM
 696                                 };
 697                                 struct v4l2_rect max_r = {
 698                                         0, 0,
 699                                         r.width * MAX_ZOOM,
 700                                         factor * r.height * MAX_ZOOM
 701                                 };
 702
 703                                 v4l2_rect_set_min_size(crop, &min_r);
 704                                 v4l2_rect_set_max_size(crop, &max_r);
 705                                 v4l2_rect_map_inside(crop, &dev->crop_bounds_cap);
 706                         } else if (dev->has_crop_cap) {
 707                                 struct v4l2_rect min_r = {
 708                                         0, 0,
 709                                         compose->width / MAX_ZOOM,
 710                                         factor * compose->height / MAX_ZOOM
 711                                 };
 712                                 struct v4l2_rect max_r = {
 713                                         0, 0,
 714                                         compose->width * MAX_ZOOM,
 715                                         factor * compose->height * MAX_ZOOM
 716                                 };
 717
 718                                 v4l2_rect_set_min_size(crop, &min_r);
 719                                 v4l2_rect_set_max_size(crop, &max_r);
 720                                 v4l2_rect_map_inside(crop, &dev->crop_bounds_cap);
 721                         }
 722                 } else if (dev->has_crop_cap && !dev->has_compose_cap) {
 723                         r.height *= factor;
 724                         v4l2_rect_set_size_to(crop, &r);
 725                         v4l2_rect_map_inside(crop, &dev->crop_bounds_cap);
 726                         r = *crop;
 727                         r.height /= factor;
 728                         v4l2_rect_set_size_to(compose, &r);
 729                 } else if (!dev->has_crop_cap) {
 730                         v4l2_rect_map_inside(compose, &r);
 731                 } else {
 732                         r.height *= factor;
 733                         v4l2_rect_set_max_size(crop, &r);
 734                         v4l2_rect_map_inside(crop, &dev->crop_bounds_cap);
 735                         compose->top *= factor;
 736                         compose->height *= factor;
 737                         v4l2_rect_set_size_to(compose, crop);
 738                         v4l2_rect_map_inside(compose, &r);
 739                         compose->top /= factor;
 740                         compose->height /= factor;
 741                 }
 742         } else if (vivid_is_webcam(dev)) {
 743                 /* Guaranteed to be a match */
 744                 for (i = 0; i < ARRAY_SIZE(webcam_sizes); i++)
 745                         if (webcam_sizes[i].width == mp->width &&
 746                                         webcam_sizes[i].height == mp->height)
 747                                 break;
 748                 dev->webcam_size_idx = i;
 749                 if (dev->webcam_ival_idx >= 2 * (VIVID_WEBCAM_SIZES - i))
 750                         dev->webcam_ival_idx = 2 * (VIVID_WEBCAM_SIZES - i) - 1;
 751                 vivid_update_format_cap(dev, false);
 752         } else {
 753                 struct v4l2_rect r = { 0, 0, mp->width, mp->height };
 754
 755                 v4l2_rect_set_size_to(compose, &r);
 756                 r.height *= factor;
 757                 v4l2_rect_set_size_to(crop, &r);
 758         }
 759
 760         dev->fmt_cap_rect.width = mp->width;
 761         dev->fmt_cap_rect.height = mp->height;
 762         tpg_s_buf_height(&dev->tpg, mp->height);
 763         tpg_s_fourcc(&dev->tpg, dev->fmt_cap->fourcc);
 764         for (p = 0; p < tpg_g_buffers(&dev->tpg); p++)
 765                 tpg_s_bytesperline(&dev->tpg, p, mp->plane_fmt[p].bytesperline);
 766         dev->field_cap = mp->field;
 767         if (dev->field_cap == V4L2_FIELD_ALTERNATE)
 768                 tpg_s_field(&dev->tpg, V4L2_FIELD_TOP, true);
 769         else
 770                 tpg_s_field(&dev->tpg, dev->field_cap, false);
 771         tpg_s_crop_compose(&dev->tpg, &dev->crop_cap, &dev->compose_cap);
 772         if (vivid_is_sdtv_cap(dev))
 773                 dev->tv_field_cap = mp->field;
 774         tpg_update_mv_step(&dev->tpg);
 775         return 0;
 776 }
 777
 778 int vidioc_g_fmt_vid_cap_mplane(struct file *file, void *priv,
 779                                         struct v4l2_format *f)
 780 {
 781         struct vivid_dev *dev = video_drvdata(file);
 782
 783         if (!dev->multiplanar)
 784                 return -ENOTTY;
 785         return vivid_g_fmt_vid_cap(file, priv, f);
 786 }
 787
 788 int vidioc_try_fmt_vid_cap_mplane(struct file *file, void *priv,
 789                         struct v4l2_format *f)
 790 {
 791         struct vivid_dev *dev = video_drvdata(file);
 792
 793         if (!dev->multiplanar)
 794                 return -ENOTTY;
 795         return vivid_try_fmt_vid_cap(file, priv, f);
 796 }
 797
 798 int vidioc_s_fmt_vid_cap_mplane(struct file *file, void *priv,
 799                         struct v4l2_format *f)
 800 {
 801         struct vivid_dev *dev = video_drvdata(file);
 802
 803         if (!dev->multiplanar)
 804                 return -ENOTTY;
 805         return vivid_s_fmt_vid_cap(file, priv, f);
 806 }
 807
 808 int vidioc_g_fmt_vid_cap(struct file *file, void *priv,
 809                                         struct v4l2_format *f)
 810 {
 811         struct vivid_dev *dev = video_drvdata(file);
 812
 813         if (dev->multiplanar)
 814                 return -ENOTTY;
 815         return fmt_sp2mp_func(file, priv, f, vivid_g_fmt_vid_cap);
 816 }
 817
 818 int vidioc_try_fmt_vid_cap(struct file *file, void *priv,
 819                         struct v4l2_format *f)
 820 {
 821         struct vivid_dev *dev = video_drvdata(file);
 822
 823         if (dev->multiplanar)
 824                 return -ENOTTY;
 825         return fmt_sp2mp_func(file, priv, f, vivid_try_fmt_vid_cap);
 826 }
 827
 828 int vidioc_s_fmt_vid_cap(struct file *file, void *priv,
 829                         struct v4l2_format *f)
 830 {
 831         struct vivid_dev *dev = video_drvdata(file);
 832
 833         if (dev->multiplanar)
 834                 return -ENOTTY;
 835         return fmt_sp2mp_func(file, priv, f, vivid_s_fmt_vid_cap);
 836 }
 837
 838 int vivid_vid_cap_g_selection(struct file *file, void *priv,
 839                               struct v4l2_selection *sel)
 840 {
 841         struct vivid_dev *dev = video_drvdata(file);
 842
 843         if (!dev->has_crop_cap && !dev->has_compose_cap)
 844                 return -ENOTTY;
 845         if (sel->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
 846                 return -EINVAL;
 847         if (vivid_is_webcam(dev))
 848                 return -ENODATA;
 849
 850         sel->r.left = sel->r.top = 0;
 851         switch (sel->target) {
 852         case V4L2_SEL_TGT_CROP:
 853                 if (!dev->has_crop_cap)
 854                         return -EINVAL;
 855                 sel->r = dev->crop_cap;
 856                 break;
 857         case V4L2_SEL_TGT_CROP_DEFAULT:
 858         case V4L2_SEL_TGT_CROP_BOUNDS:
 859                 if (!dev->has_crop_cap)
 860                         return -EINVAL;
 861                 sel->r = dev->src_rect;
 862                 break;
 863         case V4L2_SEL_TGT_COMPOSE_BOUNDS:
 864                 if (!dev->has_compose_cap)
 865                         return -EINVAL;
 866                 sel->r = vivid_max_rect;
 867                 break;
 868         case V4L2_SEL_TGT_COMPOSE:
 869                 if (!dev->has_compose_cap)
 870                         return -EINVAL;
 871                 sel->r = dev->compose_cap;
 872                 break;
 873         case V4L2_SEL_TGT_COMPOSE_DEFAULT:
 874                 if (!dev->has_compose_cap)
 875                         return -EINVAL;
 876                 sel->r = dev->fmt_cap_rect;
 877                 break;
 878         default:
 879                 return -EINVAL;
 880         }
 881         return 0;
 882 }
 883
 884 int vivid_vid_cap_s_selection(struct file *file, void *fh, struct v4l2_selection *s)
 885 {
 886         struct vivid_dev *dev = video_drvdata(file);
 887         struct v4l2_rect *crop = &dev->crop_cap;
 888         struct v4l2_rect *compose = &dev->compose_cap;
 889         unsigned factor = V4L2_FIELD_HAS_T_OR_B(dev->field_cap) ? 2 : 1;
 890         int ret;
 891
 892         if (!dev->has_crop_cap && !dev->has_compose_cap)
 893                 return -ENOTTY;
 894         if (s->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
 895                 return -EINVAL;
 896         if (vivid_is_webcam(dev))
 897                 return -ENODATA;
 898
 899         switch (s->target) {
 900         case V4L2_SEL_TGT_CROP:
 901                 if (!dev->has_crop_cap)
 902                         return -EINVAL;
 903                 ret = vivid_vid_adjust_sel(s->flags, &s->r);
 904                 if (ret)
 905                         return ret;
 906                 v4l2_rect_set_min_size(&s->r, &vivid_min_rect);
 907                 v4l2_rect_set_max_size(&s->r, &dev->src_rect);
 908                 v4l2_rect_map_inside(&s->r, &dev->crop_bounds_cap);
 909                 s->r.top /= factor;
 910                 s->r.height /= factor;
 911                 if (dev->has_scaler_cap) {
 912                         struct v4l2_rect fmt = dev->fmt_cap_rect;
 913                         struct v4l2_rect max_rect = {
 914                                 0, 0,
 915                                 s->r.width * MAX_ZOOM,
 916                                 s->r.height * MAX_ZOOM
 917                         };
 918                         struct v4l2_rect min_rect = {
 919                                 0, 0,
 920                                 s->r.width / MAX_ZOOM,
 921                                 s->r.height / MAX_ZOOM
 922                         };
 923
 924                         v4l2_rect_set_min_size(&fmt, &min_rect);
 925                         if (!dev->has_compose_cap)
 926                                 v4l2_rect_set_max_size(&fmt, &max_rect);
 927                         if (!v4l2_rect_same_size(&dev->fmt_cap_rect, &fmt) &&
 928                             vb2_is_busy(&dev->vb_vid_cap_q))
 929                                 return -EBUSY;
 930                         if (dev->has_compose_cap) {
 931                                 v4l2_rect_set_min_size(compose, &min_rect);
 932                                 v4l2_rect_set_max_size(compose, &max_rect);
 933                         }
 934                         dev->fmt_cap_rect = fmt;
 935                         tpg_s_buf_height(&dev->tpg, fmt.height);
 936                 } else if (dev->has_compose_cap) {
 937                         struct v4l2_rect fmt = dev->fmt_cap_rect;
 938
 939                         v4l2_rect_set_min_size(&fmt, &s->r);
 940                         if (!v4l2_rect_same_size(&dev->fmt_cap_rect, &fmt) &&
 941                             vb2_is_busy(&dev->vb_vid_cap_q))
 942                                 return -EBUSY;
 943                         dev->fmt_cap_rect = fmt;
 944                         tpg_s_buf_height(&dev->tpg, fmt.height);
 945                         v4l2_rect_set_size_to(compose, &s->r);
 946                         v4l2_rect_map_inside(compose, &dev->fmt_cap_rect);
 947                 } else {
 948                         if (!v4l2_rect_same_size(&s->r, &dev->fmt_cap_rect) &&
 949                             vb2_is_busy(&dev->vb_vid_cap_q))
 950                                 return -EBUSY;
 951                         v4l2_rect_set_size_to(&dev->fmt_cap_rect, &s->r);
 952                         v4l2_rect_set_size_to(compose, &s->r);
 953                         v4l2_rect_map_inside(compose, &dev->fmt_cap_rect);
 954                         tpg_s_buf_height(&dev->tpg, dev->fmt_cap_rect.height);
 955                 }
 956                 s->r.top *= factor;
 957                 s->r.height *= factor;
 958                 *crop = s->r;
 959                 break;
 960         case V4L2_SEL_TGT_COMPOSE:
 961                 if (!dev->has_compose_cap)
 962                         return -EINVAL;
 963                 ret = vivid_vid_adjust_sel(s->flags, &s->r);
 964                 if (ret)
 965                         return ret;
 966                 v4l2_rect_set_min_size(&s->r, &vivid_min_rect);
 967                 v4l2_rect_set_max_size(&s->r, &dev->fmt_cap_rect);
 968                 if (dev->has_scaler_cap) {
 969                         struct v4l2_rect max_rect = {
 970                                 0, 0,
 971                                 dev->src_rect.width * MAX_ZOOM,
 972                                 (dev->src_rect.height / factor) * MAX_ZOOM
 973                         };
 974
 975                         v4l2_rect_set_max_size(&s->r, &max_rect);
 976                         if (dev->has_crop_cap) {
 977                                 struct v4l2_rect min_rect = {
 978                                         0, 0,
 979                                         s->r.width / MAX_ZOOM,
 980                                         (s->r.height * factor) / MAX_ZOOM
 981                                 };
 982                                 struct v4l2_rect max_rect = {
 983                                         0, 0,
 984                                         s->r.width * MAX_ZOOM,
 985                                         (s->r.height * factor) * MAX_ZOOM
 986                                 };
 987
 988                                 v4l2_rect_set_min_size(crop, &min_rect);
 989                                 v4l2_rect_set_max_size(crop, &max_rect);
 990                                 v4l2_rect_map_inside(crop, &dev->crop_bounds_cap);
 991                         }
 992                 } else if (dev->has_crop_cap) {
 993                         s->r.top *= factor;
 994                         s->r.height *= factor;
 995                         v4l2_rect_set_max_size(&s->r, &dev->src_rect);
 996                         v4l2_rect_set_size_to(crop, &s->r);
 997                         v4l2_rect_map_inside(crop, &dev->crop_bounds_cap);
 998                         s->r.top /= factor;
 999                         s->r.height /= factor;
1000                 } else {
1001                         v4l2_rect_set_size_to(&s->r, &dev->src_rect);
1002                         s->r.height /= factor;
1003                 }
1004                 v4l2_rect_map_inside(&s->r, &dev->fmt_cap_rect);
1005                 if (dev->bitmap_cap && (compose->width != s->r.width ||
1006                                         compose->height != s->r.height)) {
1007                         vfree(dev->bitmap_cap);
1008                         dev->bitmap_cap = NULL;
1009                 }
1010                 *compose = s->r;
1011                 break;
1012         default:
1013                 return -EINVAL;
1014         }
1015
1016         tpg_s_crop_compose(&dev->tpg, crop, compose);
1017         return 0;
1018 }
1019
1020 int vivid_vid_cap_g_pixelaspect(struct file *file, void *priv,
1021                                 int type, struct v4l2_fract *f)
1022 {
1023         struct vivid_dev *dev = video_drvdata(file);
1024
1025         if (type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
1026                 return -EINVAL;
1027
1028         switch (vivid_get_pixel_aspect(dev)) {
1029         case TPG_PIXEL_ASPECT_NTSC:
1030                 f->numerator = 11;
1031                 f->denominator = 10;
1032                 break;
1033         case TPG_PIXEL_ASPECT_PAL:
1034                 f->numerator = 54;
1035                 f->denominator = 59;
1036                 break;
1037         default:
1038                 break;
1039         }
1040         return 0;
1041 }
1042
1043 int vidioc_enum_fmt_vid_overlay(struct file *file, void  *priv,
1044                                         struct v4l2_fmtdesc *f)
1045 {
1046         struct vivid_dev *dev = video_drvdata(file);
1047         const struct vivid_fmt *fmt;
1048
1049         if (dev->multiplanar)
1050                 return -ENOTTY;
1051
1052         if (f->index >= ARRAY_SIZE(formats_ovl))
1053                 return -EINVAL;
1054
1055         fmt = &formats_ovl[f->index];
1056
1057         f->pixelformat = fmt->fourcc;
1058         return 0;
1059 }
1060
1061 int vidioc_g_fmt_vid_overlay(struct file *file, void *priv,
1062                                         struct v4l2_format *f)
1063 {
1064         struct vivid_dev *dev = video_drvdata(file);
1065         const struct v4l2_rect *compose = &dev->compose_cap;
1066         struct v4l2_window *win = &f->fmt.win;
1067         unsigned clipcount = win->clipcount;
1068
1069         if (dev->multiplanar)
1070                 return -ENOTTY;
1071
1072         win->w.top = dev->overlay_cap_top;
1073         win->w.left = dev->overlay_cap_left;
1074         win->w.width = compose->width;
1075         win->w.height = compose->height;
1076         win->field = dev->overlay_cap_field;
1077         win->clipcount = dev->clipcount_cap;
1078         if (clipcount > dev->clipcount_cap)
1079                 clipcount = dev->clipcount_cap;
1080         if (dev->bitmap_cap == NULL)
1081                 win->bitmap = NULL;
1082         else if (win->bitmap) {
1083                 if (copy_to_user(win->bitmap, dev->bitmap_cap,
1084                     ((compose->width + 7) / 8) * compose->height))
1085                         return -EFAULT;
1086         }
1087         if (clipcount && win->clips) {
1088                 if (copy_to_user(win->clips, dev->clips_cap,
1089                                  clipcount * sizeof(dev->clips_cap[0])))
1090                         return -EFAULT;
1091         }
1092         return 0;
1093 }
1094
1095 int vidioc_try_fmt_vid_overlay(struct file *file, void *priv,
1096                                         struct v4l2_format *f)
1097 {
1098         struct vivid_dev *dev = video_drvdata(file);
1099         const struct v4l2_rect *compose = &dev->compose_cap;
1100         struct v4l2_window *win = &f->fmt.win;
1101         int i, j;
1102
1103         if (dev->multiplanar)
1104                 return -ENOTTY;
1105
1106         win->w.left = clamp_t(int, win->w.left,
1107                               -dev->fb_cap.fmt.width, dev->fb_cap.fmt.width);
1108         win->w.top = clamp_t(int, win->w.top,
1109                              -dev->fb_cap.fmt.height, dev->fb_cap.fmt.height);
1110         win->w.width = compose->width;
1111         win->w.height = compose->height;
1112         if (win->field != V4L2_FIELD_BOTTOM && win->field != V4L2_FIELD_TOP)
1113                 win->field = V4L2_FIELD_ANY;
1114         win->chromakey = 0;
1115         win->global_alpha = 0;
1116         if (win->clipcount && !win->clips)
1117                 win->clipcount = 0;
1118         if (win->clipcount > MAX_CLIPS)
1119                 win->clipcount = MAX_CLIPS;
1120         if (win->clipcount) {
1121                 if (copy_from_user(dev->try_clips_cap, win->clips,
1122                                    win->clipcount * sizeof(dev->clips_cap[0])))
1123                         return -EFAULT;
1124                 for (i = 0; i < win->clipcount; i++) {
1125                         struct v4l2_rect *r = &dev->try_clips_cap[i].c;
1126
1127                         r->top = clamp_t(s32, r->top, 0, dev->fb_cap.fmt.height - 1);
1128                         r->height = clamp_t(s32, r->height, 1, dev->fb_cap.fmt.height - r->top);
1129                         r->left = clamp_t(u32, r->left, 0, dev->fb_cap.fmt.width - 1);
1130                         r->width = clamp_t(u32, r->width, 1, dev->fb_cap.fmt.width - r->left);
1131                 }
1132                 /*
1133                  * Yeah, so sue me, it's an O(n^2) algorithm. But n is a small
1134                  * number and it's typically a one-time deal.
1135                  */
1136                 for (i = 0; i < win->clipcount - 1; i++) {
1137                         struct v4l2_rect *r1 = &dev->try_clips_cap[i].c;
1138
1139                         for (j = i + 1; j < win->clipcount; j++) {
1140                                 struct v4l2_rect *r2 = &dev->try_clips_cap[j].c;
1141
1142                                 if (v4l2_rect_overlap(r1, r2))
1143                                         return -EINVAL;
1144                         }
1145                 }
1146                 if (copy_to_user(win->clips, dev->try_clips_cap,
1147                                  win->clipcount * sizeof(dev->clips_cap[0])))
1148                         return -EFAULT;
1149         }
1150         return 0;
1151 }
1152
1153 int vidioc_s_fmt_vid_overlay(struct file *file, void *priv,
1154                                         struct v4l2_format *f)
1155 {
1156         struct vivid_dev *dev = video_drvdata(file);
1157         const struct v4l2_rect *compose = &dev->compose_cap;
1158         struct v4l2_window *win = &f->fmt.win;
1159         int ret = vidioc_try_fmt_vid_overlay(file, priv, f);
1160         unsigned bitmap_size = ((compose->width + 7) / 8) * compose->height;
1161         unsigned clips_size = win->clipcount * sizeof(dev->clips_cap[0]);
1162         void *new_bitmap = NULL;
1163
1164         if (ret)
1165                 return ret;
1166
1167         if (win->bitmap) {
1168                 new_bitmap = vzalloc(bitmap_size);
1169
1170                 if (new_bitmap == NULL)
1171                         return -ENOMEM;
1172                 if (copy_from_user(new_bitmap, win->bitmap, bitmap_size)) {
1173                         vfree(new_bitmap);
1174                         return -EFAULT;
1175                 }
1176         }
1177
1178         dev->overlay_cap_top = win->w.top;
1179         dev->overlay_cap_left = win->w.left;
1180         dev->overlay_cap_field = win->field;
1181         vfree(dev->bitmap_cap);
1182         dev->bitmap_cap = new_bitmap;
1183         dev->clipcount_cap = win->clipcount;
1184         if (dev->clipcount_cap)
1185                 memcpy(dev->clips_cap, dev->try_clips_cap, clips_size);
1186         return 0;
1187 }
1188
1189 int vivid_vid_cap_overlay(struct file *file, void *fh, unsigned i)
1190 {
1191         struct vivid_dev *dev = video_drvdata(file);
1192
1193         if (dev->multiplanar)
1194                 return -ENOTTY;
1195
1196         if (i && dev->fb_vbase_cap == NULL)
1197                 return -EINVAL;
1198
1199         if (i && dev->fb_cap.fmt.pixelformat != dev->fmt_cap->fourcc) {
1200                 dprintk(dev, 1, "mismatch between overlay and video capture pixelformats\n");
1201                 return -EINVAL;
1202         }
1203
1204         if (dev->overlay_cap_owner && dev->overlay_cap_owner != fh)
1205                 return -EBUSY;
1206         dev->overlay_cap_owner = i ? fh : NULL;
1207         return 0;
1208 }
1209
1210 int vivid_vid_cap_g_fbuf(struct file *file, void *fh,
1211                                 struct v4l2_framebuffer *a)
1212 {
1213         struct vivid_dev *dev = video_drvdata(file);
1214
1215         if (dev->multiplanar)
1216                 return -ENOTTY;
1217
1218         *a = dev->fb_cap;
1219         a->capability = V4L2_FBUF_CAP_BITMAP_CLIPPING |
1220                         V4L2_FBUF_CAP_LIST_CLIPPING;
1221         a->flags = V4L2_FBUF_FLAG_PRIMARY;
1222         a->fmt.field = V4L2_FIELD_NONE;
1223         a->fmt.colorspace = V4L2_COLORSPACE_SRGB;
1224         a->fmt.priv = 0;
1225         return 0;
1226 }
1227
1228 int vivid_vid_cap_s_fbuf(struct file *file, void *fh,
1229                                 const struct v4l2_framebuffer *a)
1230 {
1231         struct vivid_dev *dev = video_drvdata(file);
1232         const struct vivid_fmt *fmt;
1233
1234         if (dev->multiplanar)
1235                 return -ENOTTY;
1236
1237         if (!capable(CAP_SYS_ADMIN) && !capable(CAP_SYS_RAWIO))
1238                 return -EPERM;
1239
1240         if (dev->overlay_cap_owner)
1241                 return -EBUSY;
1242
1243         if (a->base == NULL) {
1244                 dev->fb_cap.base = NULL;
1245                 dev->fb_vbase_cap = NULL;
1246                 return 0;
1247         }
1248
1249         if (a->fmt.width < 48 || a->fmt.height < 32)
1250                 return -EINVAL;
1251         fmt = vivid_get_format(dev, a->fmt.pixelformat);
1252         if (!fmt || !fmt->can_do_overlay)
1253                 return -EINVAL;
1254         if (a->fmt.bytesperline < (a->fmt.width * fmt->bit_depth[0]) / 8)
1255                 return -EINVAL;
1256         if (a->fmt.height * a->fmt.bytesperline < a->fmt.sizeimage)
1257                 return -EINVAL;
1258
1259         dev->fb_vbase_cap = phys_to_virt((unsigned long)a->base);
1260         dev->fb_cap = *a;
1261         dev->overlay_cap_left = clamp_t(int, dev->overlay_cap_left,
1262                                     -dev->fb_cap.fmt.width, dev->fb_cap.fmt.width);
1263         dev->overlay_cap_top = clamp_t(int, dev->overlay_cap_top,
1264                                    -dev->fb_cap.fmt.height, dev->fb_cap.fmt.height);
1265         return 0;
1266 }
1267
1268 static const struct v4l2_audio vivid_audio_inputs[] = {
1269         { 0, "TV", V4L2_AUDCAP_STEREO },
1270         { 1, "Line-In", V4L2_AUDCAP_STEREO },
1271 };
1272
1273 int vidioc_enum_input(struct file *file, void *priv,
1274                                 struct v4l2_input *inp)
1275 {
1276         struct vivid_dev *dev = video_drvdata(file);
1277
1278         if (inp->index >= dev->num_inputs)
1279                 return -EINVAL;
1280
1281         inp->type = V4L2_INPUT_TYPE_CAMERA;
1282         switch (dev->input_type[inp->index]) {
1283         case WEBCAM:
1284                 snprintf(inp->name, sizeof(inp->name), "Webcam %u",
1285                                 dev->input_name_counter[inp->index]);
1286                 inp->capabilities = 0;
1287                 break;
1288         case TV:
1289                 snprintf(inp->name, sizeof(inp->name), "TV %u",
1290                                 dev->input_name_counter[inp->index]);
1291                 inp->type = V4L2_INPUT_TYPE_TUNER;
1292                 inp->std = V4L2_STD_ALL;
1293                 if (dev->has_audio_inputs)
1294                         inp->audioset = (1 << ARRAY_SIZE(vivid_audio_inputs)) - 1;
1295                 inp->capabilities = V4L2_IN_CAP_STD;
1296                 break;
1297         case SVID:
1298                 snprintf(inp->name, sizeof(inp->name), "S-Video %u",
1299                                 dev->input_name_counter[inp->index]);
1300                 inp->std = V4L2_STD_ALL;
1301                 if (dev->has_audio_inputs)
1302                         inp->audioset = (1 << ARRAY_SIZE(vivid_audio_inputs)) - 1;
1303                 inp->capabilities = V4L2_IN_CAP_STD;
1304                 break;
1305         case HDMI:
1306                 snprintf(inp->name, sizeof(inp->name), "HDMI %u",
1307                                 dev->input_name_counter[inp->index]);
1308                 inp->capabilities = V4L2_IN_CAP_DV_TIMINGS;
1309                 if (dev->edid_blocks == 0 ||
1310                     dev->dv_timings_signal_mode[dev->input] == NO_SIGNAL)
1311                         inp->status |= V4L2_IN_ST_NO_SIGNAL;
1312                 else if (dev->dv_timings_signal_mode[dev->input] == NO_LOCK ||
1313                          dev->dv_timings_signal_mode[dev->input] == OUT_OF_RANGE)
1314                         inp->status |= V4L2_IN_ST_NO_H_LOCK;
1315                 break;
1316         }
1317         if (dev->sensor_hflip)
1318                 inp->status |= V4L2_IN_ST_HFLIP;
1319         if (dev->sensor_vflip)
1320                 inp->status |= V4L2_IN_ST_VFLIP;
1321         if (dev->input == inp->index && vivid_is_sdtv_cap(dev)) {
1322                 if (dev->std_signal_mode[dev->input] == NO_SIGNAL) {
1323                         inp->status |= V4L2_IN_ST_NO_SIGNAL;
1324                 } else if (dev->std_signal_mode[dev->input] == NO_LOCK) {
1325                         inp->status |= V4L2_IN_ST_NO_H_LOCK;
1326                 } else if (vivid_is_tv_cap(dev)) {
1327                         switch (tpg_g_quality(&dev->tpg)) {
1328                         case TPG_QUAL_GRAY:
1329                                 inp->status |= V4L2_IN_ST_COLOR_KILL;
1330                                 break;
1331                         case TPG_QUAL_NOISE:
1332                                 inp->status |= V4L2_IN_ST_NO_H_LOCK;
1333                                 break;
1334                         default:
1335                                 break;
1336                         }
1337                 }
1338         }
1339         return 0;
1340 }
1341
1342 int vidioc_g_input(struct file *file, void *priv, unsigned *i)
1343 {
1344         struct vivid_dev *dev = video_drvdata(file);
1345
1346         *i = dev->input;
1347         return 0;
1348 }
1349
1350 int vidioc_s_input(struct file *file, void *priv, unsigned i)
1351 {
1352         struct vivid_dev *dev = video_drvdata(file);
1353         struct v4l2_bt_timings *bt = &dev->dv_timings_cap[dev->input].bt;
1354         unsigned brightness;
1355
1356         if (i >= dev->num_inputs)
1357                 return -EINVAL;
1358
1359         if (i == dev->input)
1360                 return 0;
1361
1362         if (vb2_is_busy(&dev->vb_vid_cap_q) || vb2_is_busy(&dev->vb_vbi_cap_q))
1363                 return -EBUSY;
1364
1365         dev->input = i;
1366         dev->vid_cap_dev.tvnorms = 0;
1367         if (dev->input_type[i] == TV || dev->input_type[i] == SVID) {
1368                 dev->tv_audio_input = (dev->input_type[i] == TV) ? 0 : 1;
1369                 dev->vid_cap_dev.tvnorms = V4L2_STD_ALL;
1370         }
1371         dev->vbi_cap_dev.tvnorms = dev->vid_cap_dev.tvnorms;
1372         vivid_update_format_cap(dev, false);
1373
1374         if (dev->colorspace) {
1375                 switch (dev->input_type[i]) {
1376                 case WEBCAM:
1377                         v4l2_ctrl_s_ctrl(dev->colorspace, VIVID_CS_SRGB);
1378                         break;
1379                 case TV:
1380                 case SVID:
1381                         v4l2_ctrl_s_ctrl(dev->colorspace, VIVID_CS_170M);
1382                         break;
1383                 case HDMI:
1384                         if (bt->flags & V4L2_DV_FL_IS_CE_VIDEO) {
1385                                 if (dev->src_rect.width == 720 && dev->src_rect.height <= 576)
1386                                         v4l2_ctrl_s_ctrl(dev->colorspace, VIVID_CS_170M);
1387                                 else
1388                                         v4l2_ctrl_s_ctrl(dev->colorspace, VIVID_CS_709);
1389                         } else {
1390                                 v4l2_ctrl_s_ctrl(dev->colorspace, VIVID_CS_SRGB);
1391                         }
1392                         break;
1393                 }
1394         }
1395
1396         /*
1397          * Modify the brightness range depending on the input.
1398          * This makes it easy to use vivid to test if applications can
1399          * handle control range modifications and is also how this is
1400          * typically used in practice as different inputs may be hooked
1401          * up to different receivers with different control ranges.
1402          */
1403         brightness = 128 * i + dev->input_brightness[i];
1404         v4l2_ctrl_modify_range(dev->brightness,
1405                         128 * i, 255 + 128 * i, 1, 128 + 128 * i);
1406         v4l2_ctrl_s_ctrl(dev->brightness, brightness);
1407
1408         /* Restore per-input states. */
1409         v4l2_ctrl_activate(dev->ctrl_dv_timings_signal_mode,
1410                            vivid_is_hdmi_cap(dev));
1411         v4l2_ctrl_activate(dev->ctrl_dv_timings, vivid_is_hdmi_cap(dev) &&
1412                            dev->dv_timings_signal_mode[dev->input] ==
1413                            SELECTED_DV_TIMINGS);
1414         v4l2_ctrl_activate(dev->ctrl_std_signal_mode, vivid_is_sdtv_cap(dev));
1415         v4l2_ctrl_activate(dev->ctrl_standard, vivid_is_sdtv_cap(dev) &&
1416                            dev->std_signal_mode[dev->input]);
1417
1418         if (vivid_is_hdmi_cap(dev)) {
1419                 v4l2_ctrl_s_ctrl(dev->ctrl_dv_timings_signal_mode,
1420                                  dev->dv_timings_signal_mode[dev->input]);
1421                 v4l2_ctrl_s_ctrl(dev->ctrl_dv_timings,
1422                                  dev->query_dv_timings[dev->input]);
1423         } else if (vivid_is_sdtv_cap(dev)) {
1424                 v4l2_ctrl_s_ctrl(dev->ctrl_std_signal_mode,
1425                                  dev->std_signal_mode[dev->input]);
1426                 v4l2_ctrl_s_ctrl(dev->ctrl_standard,
1427                                  dev->std_signal_mode[dev->input]);
1428         }
1429
1430         return 0;
1431 }
1432
1433 int vidioc_enumaudio(struct file *file, void *fh, struct v4l2_audio *vin)
1434 {
1435         if (vin->index >= ARRAY_SIZE(vivid_audio_inputs))
1436                 return -EINVAL;
1437         *vin = vivid_audio_inputs[vin->index];
1438         return 0;
1439 }
1440
1441 int vidioc_g_audio(struct file *file, void *fh, struct v4l2_audio *vin)
1442 {
1443         struct vivid_dev *dev = video_drvdata(file);
1444
1445         if (!vivid_is_sdtv_cap(dev))
1446                 return -EINVAL;
1447         *vin = vivid_audio_inputs[dev->tv_audio_input];
1448         return 0;
1449 }
1450
1451 int vidioc_s_audio(struct file *file, void *fh, const struct v4l2_audio *vin)
1452 {
1453         struct vivid_dev *dev = video_drvdata(file);
1454
1455         if (!vivid_is_sdtv_cap(dev))
1456                 return -EINVAL;
1457         if (vin->index >= ARRAY_SIZE(vivid_audio_inputs))
1458                 return -EINVAL;
1459         dev->tv_audio_input = vin->index;
1460         return 0;
1461 }
1462
1463 int vivid_video_g_frequency(struct file *file, void *fh, struct v4l2_frequency *vf)
1464 {
1465         struct vivid_dev *dev = video_drvdata(file);
1466
1467         if (vf->tuner != 0)
1468                 return -EINVAL;
1469         vf->frequency = dev->tv_freq;
1470         return 0;
1471 }
1472
1473 int vivid_video_s_frequency(struct file *file, void *fh, const struct v4l2_frequency *vf)
1474 {
1475         struct vivid_dev *dev = video_drvdata(file);
1476
1477         if (vf->tuner != 0)
1478                 return -EINVAL;
1479         dev->tv_freq = clamp_t(unsigned, vf->frequency, MIN_TV_FREQ, MAX_TV_FREQ);
1480         if (vivid_is_tv_cap(dev))
1481                 vivid_update_quality(dev);
1482         return 0;
1483 }
1484
1485 int vivid_video_s_tuner(struct file *file, void *fh, const struct v4l2_tuner *vt)
1486 {
1487         struct vivid_dev *dev = video_drvdata(file);
1488
1489         if (vt->index != 0)
1490                 return -EINVAL;
1491         if (vt->audmode > V4L2_TUNER_MODE_LANG1_LANG2)
1492                 return -EINVAL;
1493         dev->tv_audmode = vt->audmode;
1494         return 0;
1495 }
1496
1497 int vivid_video_g_tuner(struct file *file, void *fh, struct v4l2_tuner *vt)
1498 {
1499         struct vivid_dev *dev = video_drvdata(file);
1500         enum tpg_quality qual;
1501
1502         if (vt->index != 0)
1503                 return -EINVAL;
1504
1505         vt->capability = V4L2_TUNER_CAP_NORM | V4L2_TUNER_CAP_STEREO |
1506                          V4L2_TUNER_CAP_LANG1 | V4L2_TUNER_CAP_LANG2;
1507         vt->audmode = dev->tv_audmode;
1508         vt->rangelow = MIN_TV_FREQ;
1509         vt->rangehigh = MAX_TV_FREQ;
1510         qual = vivid_get_quality(dev, &vt->afc);
1511         if (qual == TPG_QUAL_COLOR)
1512                 vt->signal = 0xffff;
1513         else if (qual == TPG_QUAL_GRAY)
1514                 vt->signal = 0x8000;
1515         else
1516                 vt->signal = 0;
1517         if (qual == TPG_QUAL_NOISE) {
1518                 vt->rxsubchans = 0;
1519         } else if (qual == TPG_QUAL_GRAY) {
1520                 vt->rxsubchans = V4L2_TUNER_SUB_MONO;
1521         } else {
1522                 unsigned int channel_nr = dev->tv_freq / (6 * 16);
1523                 unsigned int options =
1524                         (dev->std_cap[dev->input] & V4L2_STD_NTSC_M) ? 4 : 3;
1525
1526                 switch (channel_nr % options) {
1527                 case 0:
1528                         vt->rxsubchans = V4L2_TUNER_SUB_MONO;
1529                         break;
1530                 case 1:
1531                         vt->rxsubchans = V4L2_TUNER_SUB_STEREO;
1532                         break;
1533                 case 2:
1534                         if (dev->std_cap[dev->input] & V4L2_STD_NTSC_M)
1535                                 vt->rxsubchans = V4L2_TUNER_SUB_MONO | V4L2_TUNER_SUB_SAP;
1536                         else
1537                                 vt->rxsubchans = V4L2_TUNER_SUB_LANG1 | V4L2_TUNER_SUB_LANG2;
1538                         break;
1539                 case 3:
1540                         vt->rxsubchans = V4L2_TUNER_SUB_STEREO | V4L2_TUNER_SUB_SAP;
1541                         break;
1542                 }
1543         }
1544         strscpy(vt->name, "TV Tuner", sizeof(vt->name));
1545         return 0;
1546 }
1547
1548 /* Must remain in sync with the vivid_ctrl_standard_strings array */
1549 const v4l2_std_id vivid_standard[] = {
1550         V4L2_STD_NTSC_M,
1551         V4L2_STD_NTSC_M_JP,
1552         V4L2_STD_NTSC_M_KR,
1553         V4L2_STD_NTSC_443,
1554         V4L2_STD_PAL_BG | V4L2_STD_PAL_H,
1555         V4L2_STD_PAL_I,
1556         V4L2_STD_PAL_DK,
1557         V4L2_STD_PAL_M,
1558         V4L2_STD_PAL_N,
1559         V4L2_STD_PAL_Nc,
1560         V4L2_STD_PAL_60,
1561         V4L2_STD_SECAM_B | V4L2_STD_SECAM_G | V4L2_STD_SECAM_H,
1562         V4L2_STD_SECAM_DK,
1563         V4L2_STD_SECAM_L,
1564         V4L2_STD_SECAM_LC,
1565         V4L2_STD_UNKNOWN
1566 };
1567
1568 /* Must remain in sync with the vivid_standard array */
1569 const char * const vivid_ctrl_standard_strings[] = {
1570         "NTSC-M",
1571         "NTSC-M-JP",
1572         "NTSC-M-KR",
1573         "NTSC-443",
1574         "PAL-BGH",
1575         "PAL-I",
1576         "PAL-DK",
1577         "PAL-M",
1578         "PAL-N",
1579         "PAL-Nc",
1580         "PAL-60",
1581         "SECAM-BGH",
1582         "SECAM-DK",
1583         "SECAM-L",
1584         "SECAM-Lc",
1585         NULL,
1586 };
1587
1588 int vidioc_querystd(struct file *file, void *priv, v4l2_std_id *id)
1589 {
1590         struct vivid_dev *dev = video_drvdata(file);
1591         unsigned int last = dev->query_std_last[dev->input];
1592
1593         if (!vivid_is_sdtv_cap(dev))
1594                 return -ENODATA;
1595         if (dev->std_signal_mode[dev->input] == NO_SIGNAL ||
1596             dev->std_signal_mode[dev->input] == NO_LOCK) {
1597                 *id = V4L2_STD_UNKNOWN;
1598                 return 0;
1599         }
1600         if (vivid_is_tv_cap(dev) && tpg_g_quality(&dev->tpg) == TPG_QUAL_NOISE) {
1601                 *id = V4L2_STD_UNKNOWN;
1602         } else if (dev->std_signal_mode[dev->input] == CURRENT_STD) {
1603                 *id = dev->std_cap[dev->input];
1604         } else if (dev->std_signal_mode[dev->input] == SELECTED_STD) {
1605                 *id = dev->query_std[dev->input];
1606         } else {
1607                 *id = vivid_standard[last];
1608                 dev->query_std_last[dev->input] =
1609                         (last + 1) % ARRAY_SIZE(vivid_standard);
1610         }
1611
1612         return 0;
1613 }
1614
1615 int vivid_vid_cap_s_std(struct file *file, void *priv, v4l2_std_id id)
1616 {
1617         struct vivid_dev *dev = video_drvdata(file);
1618
1619         if (!vivid_is_sdtv_cap(dev))
1620                 return -ENODATA;
1621         if (dev->std_cap[dev->input] == id)
1622                 return 0;
1623         if (vb2_is_busy(&dev->vb_vid_cap_q) || vb2_is_busy(&dev->vb_vbi_cap_q))
1624                 return -EBUSY;
1625         dev->std_cap[dev->input] = id;
1626         vivid_update_format_cap(dev, false);
1627         return 0;
1628 }
1629
1630 static void find_aspect_ratio(u32 width, u32 height,
1631                                u32 *num, u32 *denom)
1632 {
1633         if (!(height % 3) && ((height * 4 / 3) == width)) {
1634                 *num = 4;
1635                 *denom = 3;
1636         } else if (!(height % 9) && ((height * 16 / 9) == width)) {
1637                 *num = 16;
1638                 *denom = 9;
1639         } else if (!(height % 10) && ((height * 16 / 10) == width)) {
1640                 *num = 16;
1641                 *denom = 10;
1642         } else if (!(height % 4) && ((height * 5 / 4) == width)) {
1643                 *num = 5;
1644                 *denom = 4;
1645         } else if (!(height % 9) && ((height * 15 / 9) == width)) {
1646                 *num = 15;
1647                 *denom = 9;
1648         } else { /* default to 16:9 */
1649                 *num = 16;
1650                 *denom = 9;
1651         }
1652 }
1653
1654 static bool valid_cvt_gtf_timings(struct v4l2_dv_timings *timings)
1655 {
1656         struct v4l2_bt_timings *bt = &timings->bt;
1657         u32 total_h_pixel;
1658         u32 total_v_lines;
1659         u32 h_freq;
1660
1661         if (!v4l2_valid_dv_timings(timings, &vivid_dv_timings_cap,
1662                                 NULL, NULL))
1663                 return false;
1664
1665         total_h_pixel = V4L2_DV_BT_FRAME_WIDTH(bt);
1666         total_v_lines = V4L2_DV_BT_FRAME_HEIGHT(bt);
1667
1668         h_freq = (u32)bt->pixelclock / total_h_pixel;
1669
1670         if (bt->standards == 0 || (bt->standards & V4L2_DV_BT_STD_CVT)) {
1671                 if (v4l2_detect_cvt(total_v_lines, h_freq, bt->vsync, bt->width,
1672                                     bt->polarities, bt->interlaced, timings))
1673                         return true;
1674         }
1675
1676         if (bt->standards == 0 || (bt->standards & V4L2_DV_BT_STD_GTF)) {
1677                 struct v4l2_fract aspect_ratio;
1678
1679                 find_aspect_ratio(bt->width, bt->height,
1680                                   &aspect_ratio.numerator,
1681                                   &aspect_ratio.denominator);
1682                 if (v4l2_detect_gtf(total_v_lines, h_freq, bt->vsync,
1683                                     bt->polarities, bt->interlaced,
1684                                     aspect_ratio, timings))
1685                         return true;
1686         }
1687         return false;
1688 }
1689
1690 int vivid_vid_cap_s_dv_timings(struct file *file, void *_fh,
1691                                     struct v4l2_dv_timings *timings)
1692 {
1693         struct vivid_dev *dev = video_drvdata(file);
1694
1695         if (!vivid_is_hdmi_cap(dev))
1696                 return -ENODATA;
1697         if (!v4l2_find_dv_timings_cap(timings, &vivid_dv_timings_cap,
1698                                       0, NULL, NULL) &&
1699             !valid_cvt_gtf_timings(timings))
1700                 return -EINVAL;
1701
1702         if (v4l2_match_dv_timings(timings, &dev->dv_timings_cap[dev->input],
1703                                   0, false))
1704                 return 0;
1705         if (vb2_is_busy(&dev->vb_vid_cap_q))
1706                 return -EBUSY;
1707
1708         dev->dv_timings_cap[dev->input] = *timings;
1709         vivid_update_format_cap(dev, false);
1710         return 0;
1711 }
1712
1713 int vidioc_query_dv_timings(struct file *file, void *_fh,
1714                                     struct v4l2_dv_timings *timings)
1715 {
1716         struct vivid_dev *dev = video_drvdata(file);
1717         unsigned int input = dev->input;
1718         unsigned int last = dev->query_dv_timings_last[input];
1719
1720         if (!vivid_is_hdmi_cap(dev))
1721                 return -ENODATA;
1722         if (dev->dv_timings_signal_mode[input] == NO_SIGNAL ||
1723             dev->edid_blocks == 0)
1724                 return -ENOLINK;
1725         if (dev->dv_timings_signal_mode[input] == NO_LOCK)
1726                 return -ENOLCK;
1727         if (dev->dv_timings_signal_mode[input] == OUT_OF_RANGE) {
1728                 timings->bt.pixelclock = vivid_dv_timings_cap.bt.max_pixelclock * 2;
1729                 return -ERANGE;
1730         }
1731         if (dev->dv_timings_signal_mode[input] == CURRENT_DV_TIMINGS) {
1732                 *timings = dev->dv_timings_cap[input];
1733         } else if (dev->dv_timings_signal_mode[input] ==
1734                    SELECTED_DV_TIMINGS) {
1735                 *timings =
1736                         v4l2_dv_timings_presets[dev->query_dv_timings[input]];
1737         } else {
1738                 *timings =
1739                         v4l2_dv_timings_presets[last];
1740                 dev->query_dv_timings_last[input] =
1741                         (last + 1) % dev->query_dv_timings_size;
1742         }
1743         return 0;
1744 }
1745
1746 int vidioc_s_edid(struct file *file, void *_fh,
1747                          struct v4l2_edid *edid)
1748 {
1749         struct vivid_dev *dev = video_drvdata(file);
1750         u16 phys_addr;
1751         unsigned int i;
1752         int ret;
1753
1754         memset(edid->reserved, 0, sizeof(edid->reserved));
1755         if (edid->pad >= dev->num_inputs)
1756                 return -EINVAL;
1757         if (dev->input_type[edid->pad] != HDMI || edid->start_block)
1758                 return -EINVAL;
1759         if (edid->blocks == 0) {
1760                 dev->edid_blocks = 0;
1761                 phys_addr = CEC_PHYS_ADDR_INVALID;
1762                 goto set_phys_addr;
1763         }
1764         if (edid->blocks > dev->edid_max_blocks) {
1765                 edid->blocks = dev->edid_max_blocks;
1766                 return -E2BIG;
1767         }
1768         phys_addr = cec_get_edid_phys_addr(edid->edid, edid->blocks * 128, NULL);
1769         ret = v4l2_phys_addr_validate(phys_addr, &phys_addr, NULL);
1770         if (ret)
1771                 return ret;
1772
1773         if (vb2_is_busy(&dev->vb_vid_cap_q))
1774                 return -EBUSY;
1775
1776         dev->edid_blocks = edid->blocks;
1777         memcpy(dev->edid, edid->edid, edid->blocks * 128);
1778
1779 set_phys_addr:
1780         /* TODO: a proper hotplug detect cycle should be emulated here */
1781         cec_s_phys_addr(dev->cec_rx_adap, phys_addr, false);
1782
1783         for (i = 0; i < MAX_OUTPUTS && dev->cec_tx_adap[i]; i++)
1784                 cec_s_phys_addr(dev->cec_tx_adap[i],
1785                                 v4l2_phys_addr_for_input(phys_addr, i + 1),
1786                                 false);
1787         return 0;
1788 }
1789
1790 int vidioc_enum_framesizes(struct file *file, void *fh,
1791                                          struct v4l2_frmsizeenum *fsize)
1792 {
1793         struct vivid_dev *dev = video_drvdata(file);
1794
1795         if (!vivid_is_webcam(dev) && !dev->has_scaler_cap)
1796                 return -EINVAL;
1797         if (vivid_get_format(dev, fsize->pixel_format) == NULL)
1798                 return -EINVAL;
1799         if (vivid_is_webcam(dev)) {
1800                 if (fsize->index >= ARRAY_SIZE(webcam_sizes))
1801                         return -EINVAL;
1802                 fsize->type = V4L2_FRMSIZE_TYPE_DISCRETE;
1803                 fsize->discrete = webcam_sizes[fsize->index];
1804                 return 0;
1805         }
1806         if (fsize->index)
1807                 return -EINVAL;
1808         fsize->type = V4L2_FRMSIZE_TYPE_STEPWISE;
1809         fsize->stepwise.min_width = MIN_WIDTH;
1810         fsize->stepwise.max_width = MAX_WIDTH * MAX_ZOOM;
1811         fsize->stepwise.step_width = 2;
1812         fsize->stepwise.min_height = MIN_HEIGHT;
1813         fsize->stepwise.max_height = MAX_HEIGHT * MAX_ZOOM;
1814         fsize->stepwise.step_height = 2;
1815         return 0;
1816 }
1817
1818 /* timeperframe is arbitrary and continuous */
1819 int vidioc_enum_frameintervals(struct file *file, void *priv,
1820                                              struct v4l2_frmivalenum *fival)
1821 {
1822         struct vivid_dev *dev = video_drvdata(file);
1823         const struct vivid_fmt *fmt;
1824         int i;
1825
1826         fmt = vivid_get_format(dev, fival->pixel_format);
1827         if (!fmt)
1828                 return -EINVAL;
1829
1830         if (!vivid_is_webcam(dev)) {
1831                 if (fival->index)
1832                         return -EINVAL;
1833                 if (fival->width < MIN_WIDTH || fival->width > MAX_WIDTH * MAX_ZOOM)
1834                         return -EINVAL;
1835                 if (fival->height < MIN_HEIGHT || fival->height > MAX_HEIGHT * MAX_ZOOM)
1836                         return -EINVAL;
1837                 fival->type = V4L2_FRMIVAL_TYPE_DISCRETE;
1838                 fival->discrete = dev->timeperframe_vid_cap;
1839                 return 0;
1840         }
1841
1842         for (i = 0; i < ARRAY_SIZE(webcam_sizes); i++)
1843                 if (fival->width == webcam_sizes[i].width &&
1844                     fival->height == webcam_sizes[i].height)
1845                         break;
1846         if (i == ARRAY_SIZE(webcam_sizes))
1847                 return -EINVAL;
1848         if (fival->index >= 2 * (VIVID_WEBCAM_SIZES - i))
1849                 return -EINVAL;
1850         fival->type = V4L2_FRMIVAL_TYPE_DISCRETE;
1851         fival->discrete = webcam_intervals[fival->index];
1852         return 0;
1853 }
1854
1855 int vivid_vid_cap_g_parm(struct file *file, void *priv,
1856                           struct v4l2_streamparm *parm)
1857 {
1858         struct vivid_dev *dev = video_drvdata(file);
1859
1860         if (parm->type != (dev->multiplanar ?
1861                            V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE :
1862                            V4L2_BUF_TYPE_VIDEO_CAPTURE))
1863                 return -EINVAL;
1864
1865         parm->parm.capture.capability   = V4L2_CAP_TIMEPERFRAME;
1866         parm->parm.capture.timeperframe = dev->timeperframe_vid_cap;
1867         parm->parm.capture.readbuffers  = 1;
1868         return 0;
1869 }
1870
1871 int vivid_vid_cap_s_parm(struct file *file, void *priv,
1872                           struct v4l2_streamparm *parm)
1873 {
1874         struct vivid_dev *dev = video_drvdata(file);
1875         unsigned ival_sz = 2 * (VIVID_WEBCAM_SIZES - dev->webcam_size_idx);
1876         struct v4l2_fract tpf;
1877         unsigned i;
1878
1879         if (parm->type != (dev->multiplanar ?
1880                            V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE :
1881                            V4L2_BUF_TYPE_VIDEO_CAPTURE))
1882                 return -EINVAL;
1883         if (!vivid_is_webcam(dev))
1884                 return vivid_vid_cap_g_parm(file, priv, parm);
1885
1886         tpf = parm->parm.capture.timeperframe;
1887
1888         if (tpf.denominator == 0)
1889                 tpf = webcam_intervals[ival_sz - 1];
1890         for (i = 0; i < ival_sz; i++)
1891                 if (V4L2_FRACT_COMPARE(tpf, >=, webcam_intervals[i]))
1892                         break;
1893         if (i == ival_sz)
1894                 i = ival_sz - 1;
1895         dev->webcam_ival_idx = i;
1896         tpf = webcam_intervals[dev->webcam_ival_idx];
1897
1898         /* resync the thread's timings */
1899         dev->cap_seq_resync = true;
1900         dev->timeperframe_vid_cap = tpf;
1901         parm->parm.capture.capability   = V4L2_CAP_TIMEPERFRAME;
1902         parm->parm.capture.timeperframe = tpf;
1903         parm->parm.capture.readbuffers  = 1;
1904         return 0;
1905 }