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 /* timeperframe: min/max and default */
  25 static const struct v4l2_fract
  26         tpf_min     = {.numerator = 1,          .denominator = FPS_MAX},
  27         tpf_max     = {.numerator = FPS_MAX,    .denominator = 1};
  28
  29 static const struct vivid_fmt formats_ovl[] = {
  30         {
  31                 .fourcc   = V4L2_PIX_FMT_RGB565, /* gggbbbbb rrrrrggg */
  32                 .vdownsampling = { 1 },
  33                 .bit_depth = { 16 },
  34                 .planes   = 1,
  35                 .buffers = 1,
  36         },
  37         {
  38                 .fourcc   = V4L2_PIX_FMT_XRGB555, /* gggbbbbb arrrrrgg */
  39                 .vdownsampling = { 1 },
  40                 .bit_depth = { 16 },
  41                 .planes   = 1,
  42                 .buffers = 1,
  43         },
  44         {
  45                 .fourcc   = V4L2_PIX_FMT_ARGB555, /* gggbbbbb arrrrrgg */
  46                 .vdownsampling = { 1 },
  47                 .bit_depth = { 16 },
  48                 .planes   = 1,
  49                 .buffers = 1,
  50         },
  51 };
  52
  53 /* The number of discrete webcam framesizes */
  54 #define VIVID_WEBCAM_SIZES 5
  55 /* The number of discrete webcam frameintervals */
  56 #define VIVID_WEBCAM_IVALS (VIVID_WEBCAM_SIZES * 2)
  57
  58 /* Sizes must be in increasing order */
  59 static const struct v4l2_frmsize_discrete webcam_sizes[VIVID_WEBCAM_SIZES] = {
  60         {  320, 180 },
  61         {  640, 360 },
  62         { 1280, 720 },
  63         { 1920, 1080 },
  64         { 3840, 2160 },
  65 };
  66
  67 /*
  68  * Intervals must be in increasing order and there must be twice as many
  69  * elements in this array as there are in webcam_sizes.
  70  */
  71 static const struct v4l2_fract webcam_intervals[VIVID_WEBCAM_IVALS] = {
  72         {  1, 1 },
  73         {  1, 2 },
  74         {  1, 4 },
  75         {  1, 5 },
  76         {  1, 10 },
  77         {  1, 15 },
  78         {  1, 25 },
  79         {  1, 30 },
  80         {  1, 50 },
  81         {  1, 60 },
  82 };
  83
  84 static int vid_cap_queue_setup(struct vb2_queue *vq,
  85                        unsigned *nbuffers, unsigned *nplanes,
  86                        unsigned sizes[], struct device *alloc_devs[])
  87 {
  88         struct vivid_dev *dev = vb2_get_drv_priv(vq);
  89         unsigned buffers = tpg_g_buffers(&dev->tpg);
  90         unsigned h = dev->fmt_cap_rect.height;
  91         unsigned p;
  92
  93         if (dev->field_cap == V4L2_FIELD_ALTERNATE) {
  94                 /*
  95                  * You cannot use read() with FIELD_ALTERNATE since the field
  96                  * information (TOP/BOTTOM) cannot be passed back to the user.
  97                  */
  98                 if (vb2_fileio_is_active(vq))
  99                         return -EINVAL;
 100         }
 101
 102         if (dev->queue_setup_error) {
 103                 /*
 104                  * Error injection: test what happens if queue_setup() returns
 105                  * an error.
 106                  */
 107                 dev->queue_setup_error = false;
 108                 return -EINVAL;
 109         }
 110         if (*nplanes) {
 111                 /*
 112                  * Check if the number of requested planes match
 113                  * the number of buffers in the current format. You can't mix that.
 114                  */
 115                 if (*nplanes != buffers)
 116                         return -EINVAL;
 117                 for (p = 0; p < buffers; p++) {
 118                         if (sizes[p] < tpg_g_line_width(&dev->tpg, p) * h +
 119                                                 dev->fmt_cap->data_offset[p])
 120                                 return -EINVAL;
 121                 }
 122         } else {
 123                 for (p = 0; p < buffers; p++)
 124                         sizes[p] = tpg_g_line_width(&dev->tpg, p) * h +
 125                                         dev->fmt_cap->data_offset[p];
 126         }
 127
 128         if (vq->num_buffers + *nbuffers < 2)
 129                 *nbuffers = 2 - vq->num_buffers;
 130
 131         *nplanes = buffers;
 132
 133         dprintk(dev, 1, "%s: count=%d\n", __func__, *nbuffers);
 134         for (p = 0; p < buffers; p++)
 135                 dprintk(dev, 1, "%s: size[%u]=%u\n", __func__, p, sizes[p]);
 136
 137         return 0;
 138 }
 139
 140 static int vid_cap_buf_prepare(struct vb2_buffer *vb)
 141 {
 142         struct vivid_dev *dev = vb2_get_drv_priv(vb->vb2_queue);
 143         unsigned long size;
 144         unsigned buffers = tpg_g_buffers(&dev->tpg);
 145         unsigned p;
 146
 147         dprintk(dev, 1, "%s\n", __func__);
 148
 149         if (WARN_ON(NULL == dev->fmt_cap))
 150                 return -EINVAL;
 151
 152         if (dev->buf_prepare_error) {
 153                 /*
 154                  * Error injection: test what happens if buf_prepare() returns
 155                  * an error.
 156                  */
 157                 dev->buf_prepare_error = false;
 158                 return -EINVAL;
 159         }
 160         for (p = 0; p < buffers; p++) {
 161                 size = tpg_g_line_width(&dev->tpg, p) * dev->fmt_cap_rect.height +
 162                         dev->fmt_cap->data_offset[p];
 163
 164                 if (vb2_plane_size(vb, p) < size) {
 165                         dprintk(dev, 1, "%s data will not fit into plane %u (%lu < %lu)\n",
 166                                         __func__, p, vb2_plane_size(vb, p), size);
 167                         return -EINVAL;
 168                 }
 169
 170                 vb2_set_plane_payload(vb, p, size);
 171                 vb->planes[p].data_offset = dev->fmt_cap->data_offset[p];
 172         }
 173
 174         return 0;
 175 }
 176
 177 static void vid_cap_buf_finish(struct vb2_buffer *vb)
 178 {
 179         struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
 180         struct vivid_dev *dev = vb2_get_drv_priv(vb->vb2_queue);
 181         struct v4l2_timecode *tc = &vbuf->timecode;
 182         unsigned fps = 25;
 183         unsigned seq = vbuf->sequence;
 184
 185         if (!vivid_is_sdtv_cap(dev))
 186                 return;
 187
 188         /*
 189          * Set the timecode. Rarely used, so it is interesting to
 190          * test this.
 191          */
 192         vbuf->flags |= V4L2_BUF_FLAG_TIMECODE;
 193         if (dev->std_cap & V4L2_STD_525_60)
 194                 fps = 30;
 195         tc->type = (fps == 30) ? V4L2_TC_TYPE_30FPS : V4L2_TC_TYPE_25FPS;
 196         tc->flags = 0;
 197         tc->frames = seq % fps;
 198         tc->seconds = (seq / fps) % 60;
 199         tc->minutes = (seq / (60 * fps)) % 60;
 200         tc->hours = (seq / (60 * 60 * fps)) % 24;
 201 }
 202
 203 static void vid_cap_buf_queue(struct vb2_buffer *vb)
 204 {
 205         struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
 206         struct vivid_dev *dev = vb2_get_drv_priv(vb->vb2_queue);
 207         struct vivid_buffer *buf = container_of(vbuf, struct vivid_buffer, vb);
 208
 209         dprintk(dev, 1, "%s\n", __func__);
 210
 211         spin_lock(&dev->slock);
 212         list_add_tail(&buf->list, &dev->vid_cap_active);
 213         spin_unlock(&dev->slock);
 214 }
 215
 216 static int vid_cap_start_streaming(struct vb2_queue *vq, unsigned count)
 217 {
 218         struct vivid_dev *dev = vb2_get_drv_priv(vq);
 219         unsigned i;
 220         int err;
 221
 222         if (vb2_is_streaming(&dev->vb_vid_out_q))
 223                 dev->can_loop_video = vivid_vid_can_loop(dev);
 224
 225         dev->vid_cap_seq_count = 0;
 226         dprintk(dev, 1, "%s\n", __func__);
 227         for (i = 0; i < VIDEO_MAX_FRAME; i++)
 228                 dev->must_blank[i] = tpg_g_perc_fill(&dev->tpg) < 100;
 229         if (dev->start_streaming_error) {
 230                 dev->start_streaming_error = false;
 231                 err = -EINVAL;
 232         } else {
 233                 err = vivid_start_generating_vid_cap(dev, &dev->vid_cap_streaming);
 234         }
 235         if (err) {
 236                 struct vivid_buffer *buf, *tmp;
 237
 238                 list_for_each_entry_safe(buf, tmp, &dev->vid_cap_active, list) {
 239                         list_del(&buf->list);
 240                         vb2_buffer_done(&buf->vb.vb2_buf,
 241                                         VB2_BUF_STATE_QUEUED);
 242                 }
 243         }
 244         return err;
 245 }
 246
 247 /* abort streaming and wait for last buffer */
 248 static void vid_cap_stop_streaming(struct vb2_queue *vq)
 249 {
 250         struct vivid_dev *dev = vb2_get_drv_priv(vq);
 251
 252         dprintk(dev, 1, "%s\n", __func__);
 253         vivid_stop_generating_vid_cap(dev, &dev->vid_cap_streaming);
 254         dev->can_loop_video = false;
 255 }
 256
 257 const struct vb2_ops vivid_vid_cap_qops = {
 258         .queue_setup            = vid_cap_queue_setup,
 259         .buf_prepare            = vid_cap_buf_prepare,
 260         .buf_finish             = vid_cap_buf_finish,
 261         .buf_queue              = vid_cap_buf_queue,
 262         .start_streaming        = vid_cap_start_streaming,
 263         .stop_streaming         = vid_cap_stop_streaming,
 264         .wait_prepare           = vb2_ops_wait_prepare,
 265         .wait_finish            = vb2_ops_wait_finish,
 266 };
 267
 268 /*
 269  * Determine the 'picture' quality based on the current TV frequency: either
 270  * COLOR for a good 'signal', GRAY (grayscale picture) for a slightly off
 271  * signal or NOISE for no signal.
 272  */
 273 void vivid_update_quality(struct vivid_dev *dev)
 274 {
 275         unsigned freq_modulus;
 276
 277         if (dev->loop_video && (vivid_is_svid_cap(dev) || vivid_is_hdmi_cap(dev))) {
 278                 /*
 279                  * The 'noise' will only be replaced by the actual video
 280                  * if the output video matches the input video settings.
 281                  */
 282                 tpg_s_quality(&dev->tpg, TPG_QUAL_NOISE, 0);
 283                 return;
 284         }
 285         if (vivid_is_hdmi_cap(dev) && VIVID_INVALID_SIGNAL(dev->dv_timings_signal_mode)) {
 286                 tpg_s_quality(&dev->tpg, TPG_QUAL_NOISE, 0);
 287                 return;
 288         }
 289         if (vivid_is_sdtv_cap(dev) && VIVID_INVALID_SIGNAL(dev->std_signal_mode)) {
 290                 tpg_s_quality(&dev->tpg, TPG_QUAL_NOISE, 0);
 291                 return;
 292         }
 293         if (!vivid_is_tv_cap(dev)) {
 294                 tpg_s_quality(&dev->tpg, TPG_QUAL_COLOR, 0);
 295                 return;
 296         }
 297
 298         /*
 299          * There is a fake channel every 6 MHz at 49.25, 55.25, etc.
 300          * From +/- 0.25 MHz around the channel there is color, and from
 301          * +/- 1 MHz there is grayscale (chroma is lost).
 302          * Everywhere else it is just noise.
 303          */
 304         freq_modulus = (dev->tv_freq - 676 /* (43.25-1) * 16 */) % (6 * 16);
 305         if (freq_modulus > 2 * 16) {
 306                 tpg_s_quality(&dev->tpg, TPG_QUAL_NOISE,
 307                         next_pseudo_random32(dev->tv_freq ^ 0x55) & 0x3f);
 308                 return;
 309         }
 310         if (freq_modulus < 12 /*0.75 * 16*/ || freq_modulus > 20 /*1.25 * 16*/)
 311                 tpg_s_quality(&dev->tpg, TPG_QUAL_GRAY, 0);
 312         else
 313                 tpg_s_quality(&dev->tpg, TPG_QUAL_COLOR, 0);
 314 }
 315
 316 /*
 317  * Get the current picture quality and the associated afc value.
 318  */
 319 static enum tpg_quality vivid_get_quality(struct vivid_dev *dev, s32 *afc)
 320 {
 321         unsigned freq_modulus;
 322
 323         if (afc)
 324                 *afc = 0;
 325         if (tpg_g_quality(&dev->tpg) == TPG_QUAL_COLOR ||
 326             tpg_g_quality(&dev->tpg) == TPG_QUAL_NOISE)
 327                 return tpg_g_quality(&dev->tpg);
 328
 329         /*
 330          * There is a fake channel every 6 MHz at 49.25, 55.25, etc.
 331          * From +/- 0.25 MHz around the channel there is color, and from
 332          * +/- 1 MHz there is grayscale (chroma is lost).
 333          * Everywhere else it is just gray.
 334          */
 335         freq_modulus = (dev->tv_freq - 676 /* (43.25-1) * 16 */) % (6 * 16);
 336         if (afc)
 337                 *afc = freq_modulus - 1 * 16;
 338         return TPG_QUAL_GRAY;
 339 }
 340
 341 enum tpg_video_aspect vivid_get_video_aspect(const struct vivid_dev *dev)
 342 {
 343         if (vivid_is_sdtv_cap(dev))
 344                 return dev->std_aspect_ratio;
 345
 346         if (vivid_is_hdmi_cap(dev))
 347                 return dev->dv_timings_aspect_ratio;
 348
 349         return TPG_VIDEO_ASPECT_IMAGE;
 350 }
 351
 352 static enum tpg_pixel_aspect vivid_get_pixel_aspect(const struct vivid_dev *dev)
 353 {
 354         if (vivid_is_sdtv_cap(dev))
 355                 return (dev->std_cap & V4L2_STD_525_60) ?
 356                         TPG_PIXEL_ASPECT_NTSC : TPG_PIXEL_ASPECT_PAL;
 357
 358         if (vivid_is_hdmi_cap(dev) &&
 359             dev->src_rect.width == 720 && dev->src_rect.height <= 576)
 360                 return dev->src_rect.height == 480 ?
 361                         TPG_PIXEL_ASPECT_NTSC : TPG_PIXEL_ASPECT_PAL;
 362
 363         return TPG_PIXEL_ASPECT_SQUARE;
 364 }
 365
 366 /*
 367  * Called whenever the format has to be reset which can occur when
 368  * changing inputs, standard, timings, etc.
 369  */
 370 void vivid_update_format_cap(struct vivid_dev *dev, bool keep_controls)
 371 {
 372         struct v4l2_bt_timings *bt = &dev->dv_timings_cap.bt;
 373         unsigned size;
 374         u64 pixelclock;
 375
 376         switch (dev->input_type[dev->input]) {
 377         case WEBCAM:
 378         default:
 379                 dev->src_rect.width = webcam_sizes[dev->webcam_size_idx].width;
 380                 dev->src_rect.height = webcam_sizes[dev->webcam_size_idx].height;
 381                 dev->timeperframe_vid_cap = webcam_intervals[dev->webcam_ival_idx];
 382                 dev->field_cap = V4L2_FIELD_NONE;
 383                 tpg_s_rgb_range(&dev->tpg, V4L2_DV_RGB_RANGE_AUTO);
 384                 break;
 385         case TV:
 386         case SVID:
 387                 dev->field_cap = dev->tv_field_cap;
 388                 dev->src_rect.width = 720;
 389                 if (dev->std_cap & V4L2_STD_525_60) {
 390                         dev->src_rect.height = 480;
 391                         dev->timeperframe_vid_cap = (struct v4l2_fract) { 1001, 30000 };
 392                         dev->service_set_cap = V4L2_SLICED_CAPTION_525;
 393                 } else {
 394                         dev->src_rect.height = 576;
 395                         dev->timeperframe_vid_cap = (struct v4l2_fract) { 1000, 25000 };
 396                         dev->service_set_cap = V4L2_SLICED_WSS_625 | V4L2_SLICED_TELETEXT_B;
 397                 }
 398                 tpg_s_rgb_range(&dev->tpg, V4L2_DV_RGB_RANGE_AUTO);
 399                 break;
 400         case HDMI:
 401                 dev->src_rect.width = bt->width;
 402                 dev->src_rect.height = bt->height;
 403                 size = V4L2_DV_BT_FRAME_WIDTH(bt) * V4L2_DV_BT_FRAME_HEIGHT(bt);
 404                 if (dev->reduced_fps && can_reduce_fps(bt)) {
 405                         pixelclock = div_u64(bt->pixelclock * 1000, 1001);
 406                         bt->flags |= V4L2_DV_FL_REDUCED_FPS;
 407                 } else {
 408                         pixelclock = bt->pixelclock;
 409                         bt->flags &= ~V4L2_DV_FL_REDUCED_FPS;
 410                 }
 411                 dev->timeperframe_vid_cap = (struct v4l2_fract) {
 412                         size / 100, (u32)pixelclock / 100
 413                 };
 414                 if (bt->interlaced)
 415                         dev->field_cap = V4L2_FIELD_ALTERNATE;
 416                 else
 417                         dev->field_cap = V4L2_FIELD_NONE;
 418
 419                 /*
 420                  * We can be called from within s_ctrl, in that case we can't
 421                  * set/get controls. Luckily we don't need to in that case.
 422                  */
 423                 if (keep_controls || !dev->colorspace)
 424                         break;
 425                 if (bt->flags & V4L2_DV_FL_IS_CE_VIDEO) {
 426                         if (bt->width == 720 && bt->height <= 576)
 427                                 v4l2_ctrl_s_ctrl(dev->colorspace, VIVID_CS_170M);
 428                         else
 429                                 v4l2_ctrl_s_ctrl(dev->colorspace, VIVID_CS_709);
 430                         v4l2_ctrl_s_ctrl(dev->real_rgb_range_cap, 1);
 431                 } else {
 432                         v4l2_ctrl_s_ctrl(dev->colorspace, VIVID_CS_SRGB);
 433                         v4l2_ctrl_s_ctrl(dev->real_rgb_range_cap, 0);
 434                 }
 435                 tpg_s_rgb_range(&dev->tpg, v4l2_ctrl_g_ctrl(dev->rgb_range_cap));
 436                 break;
 437         }
 438         vfree(dev->bitmap_cap);
 439         dev->bitmap_cap = NULL;
 440         vivid_update_quality(dev);
 441         tpg_reset_source(&dev->tpg, dev->src_rect.width, dev->src_rect.height, dev->field_cap);
 442         dev->crop_cap = dev->src_rect;
 443         dev->crop_bounds_cap = dev->src_rect;
 444         if (dev->bitmap_cap &&
 445             (dev->compose_cap.width != dev->crop_cap.width ||
 446              dev->compose_cap.height != dev->crop_cap.height)) {
 447                 vfree(dev->bitmap_cap);
 448                 dev->bitmap_cap = NULL;
 449         }
 450         dev->compose_cap = dev->crop_cap;
 451         if (V4L2_FIELD_HAS_T_OR_B(dev->field_cap))
 452                 dev->compose_cap.height /= 2;
 453         dev->fmt_cap_rect = dev->compose_cap;
 454         tpg_s_video_aspect(&dev->tpg, vivid_get_video_aspect(dev));
 455         tpg_s_pixel_aspect(&dev->tpg, vivid_get_pixel_aspect(dev));
 456         tpg_update_mv_step(&dev->tpg);
 457 }
 458
 459 /* Map the field to something that is valid for the current input */
 460 static enum v4l2_field vivid_field_cap(struct vivid_dev *dev, enum v4l2_field field)
 461 {
 462         if (vivid_is_sdtv_cap(dev)) {
 463                 switch (field) {
 464                 case V4L2_FIELD_INTERLACED_TB:
 465                 case V4L2_FIELD_INTERLACED_BT:
 466                 case V4L2_FIELD_SEQ_TB:
 467                 case V4L2_FIELD_SEQ_BT:
 468                 case V4L2_FIELD_TOP:
 469                 case V4L2_FIELD_BOTTOM:
 470                 case V4L2_FIELD_ALTERNATE:
 471                         return field;
 472                 case V4L2_FIELD_INTERLACED:
 473                 default:
 474                         return V4L2_FIELD_INTERLACED;
 475                 }
 476         }
 477         if (vivid_is_hdmi_cap(dev))
 478                 return dev->dv_timings_cap.bt.interlaced ? V4L2_FIELD_ALTERNATE :
 479                                                        V4L2_FIELD_NONE;
 480         return V4L2_FIELD_NONE;
 481 }
 482
 483 static unsigned vivid_colorspace_cap(struct vivid_dev *dev)
 484 {
 485         if (!dev->loop_video || vivid_is_webcam(dev) || vivid_is_tv_cap(dev))
 486                 return tpg_g_colorspace(&dev->tpg);
 487         return dev->colorspace_out;
 488 }
 489
 490 static unsigned vivid_xfer_func_cap(struct vivid_dev *dev)
 491 {
 492         if (!dev->loop_video || vivid_is_webcam(dev) || vivid_is_tv_cap(dev))
 493                 return tpg_g_xfer_func(&dev->tpg);
 494         return dev->xfer_func_out;
 495 }
 496
 497 static unsigned vivid_ycbcr_enc_cap(struct vivid_dev *dev)
 498 {
 499         if (!dev->loop_video || vivid_is_webcam(dev) || vivid_is_tv_cap(dev))
 500                 return tpg_g_ycbcr_enc(&dev->tpg);
 501         return dev->ycbcr_enc_out;
 502 }
 503
 504 static unsigned int vivid_hsv_enc_cap(struct vivid_dev *dev)
 505 {
 506         if (!dev->loop_video || vivid_is_webcam(dev) || vivid_is_tv_cap(dev))
 507                 return tpg_g_hsv_enc(&dev->tpg);
 508         return dev->hsv_enc_out;
 509 }
 510
 511 static unsigned vivid_quantization_cap(struct vivid_dev *dev)
 512 {
 513         if (!dev->loop_video || vivid_is_webcam(dev) || vivid_is_tv_cap(dev))
 514                 return tpg_g_quantization(&dev->tpg);
 515         return dev->quantization_out;
 516 }
 517
 518 int vivid_g_fmt_vid_cap(struct file *file, void *priv,
 519                                         struct v4l2_format *f)
 520 {
 521         struct vivid_dev *dev = video_drvdata(file);
 522         struct v4l2_pix_format_mplane *mp = &f->fmt.pix_mp;
 523         unsigned p;
 524
 525         mp->width        = dev->fmt_cap_rect.width;
 526         mp->height       = dev->fmt_cap_rect.height;
 527         mp->field        = dev->field_cap;
 528         mp->pixelformat  = dev->fmt_cap->fourcc;
 529         mp->colorspace   = vivid_colorspace_cap(dev);
 530         mp->xfer_func    = vivid_xfer_func_cap(dev);
 531         if (dev->fmt_cap->color_enc == TGP_COLOR_ENC_HSV)
 532                 mp->hsv_enc    = vivid_hsv_enc_cap(dev);
 533         else
 534                 mp->ycbcr_enc    = vivid_ycbcr_enc_cap(dev);
 535         mp->quantization = vivid_quantization_cap(dev);
 536         mp->num_planes = dev->fmt_cap->buffers;
 537         for (p = 0; p < mp->num_planes; p++) {
 538                 mp->plane_fmt[p].bytesperline = tpg_g_bytesperline(&dev->tpg, p);
 539                 mp->plane_fmt[p].sizeimage =
 540                         tpg_g_line_width(&dev->tpg, p) * mp->height +
 541                         dev->fmt_cap->data_offset[p];
 542         }
 543         return 0;
 544 }
 545
 546 int vivid_try_fmt_vid_cap(struct file *file, void *priv,
 547                         struct v4l2_format *f)
 548 {
 549         struct v4l2_pix_format_mplane *mp = &f->fmt.pix_mp;
 550         struct v4l2_plane_pix_format *pfmt = mp->plane_fmt;
 551         struct vivid_dev *dev = video_drvdata(file);
 552         const struct vivid_fmt *fmt;
 553         unsigned bytesperline, max_bpl;
 554         unsigned factor = 1;
 555         unsigned w, h;
 556         unsigned p;
 557
 558         fmt = vivid_get_format(dev, mp->pixelformat);
 559         if (!fmt) {
 560                 dprintk(dev, 1, "Fourcc format (0x%08x) unknown.\n",
 561                         mp->pixelformat);
 562                 mp->pixelformat = V4L2_PIX_FMT_YUYV;
 563                 fmt = vivid_get_format(dev, mp->pixelformat);
 564         }
 565
 566         mp->field = vivid_field_cap(dev, mp->field);
 567         if (vivid_is_webcam(dev)) {
 568                 const struct v4l2_frmsize_discrete *sz =
 569                         v4l2_find_nearest_size(webcam_sizes,
 570                                                VIVID_WEBCAM_SIZES, width,
 571                                                height, mp->width, mp->height);
 572
 573                 w = sz->width;
 574                 h = sz->height;
 575         } else if (vivid_is_sdtv_cap(dev)) {
 576                 w = 720;
 577                 h = (dev->std_cap & V4L2_STD_525_60) ? 480 : 576;
 578         } else {
 579                 w = dev->src_rect.width;
 580                 h = dev->src_rect.height;
 581         }
 582         if (V4L2_FIELD_HAS_T_OR_B(mp->field))
 583                 factor = 2;
 584         if (vivid_is_webcam(dev) ||
 585             (!dev->has_scaler_cap && !dev->has_crop_cap && !dev->has_compose_cap)) {
 586                 mp->width = w;
 587                 mp->height = h / factor;
 588         } else {
 589                 struct v4l2_rect r = { 0, 0, mp->width, mp->height * factor };
 590
 591                 v4l2_rect_set_min_size(&r, &vivid_min_rect);
 592                 v4l2_rect_set_max_size(&r, &vivid_max_rect);
 593                 if (dev->has_scaler_cap && !dev->has_compose_cap) {
 594                         struct v4l2_rect max_r = { 0, 0, MAX_ZOOM * w, MAX_ZOOM * h };
 595
 596                         v4l2_rect_set_max_size(&r, &max_r);
 597                 } else if (!dev->has_scaler_cap && dev->has_crop_cap && !dev->has_compose_cap) {
 598                         v4l2_rect_set_max_size(&r, &dev->src_rect);
 599                 } else if (!dev->has_scaler_cap && !dev->has_crop_cap) {
 600                         v4l2_rect_set_min_size(&r, &dev->src_rect);
 601                 }
 602                 mp->width = r.width;
 603                 mp->height = r.height / factor;
 604         }
 605
 606         /* This driver supports custom bytesperline values */
 607
 608         mp->num_planes = fmt->buffers;
 609         for (p = 0; p < fmt->buffers; p++) {
 610                 /* Calculate the minimum supported bytesperline value */
 611                 bytesperline = (mp->width * fmt->bit_depth[p]) >> 3;
 612                 /* Calculate the maximum supported bytesperline value */
 613                 max_bpl = (MAX_ZOOM * MAX_WIDTH * fmt->bit_depth[p]) >> 3;
 614
 615                 if (pfmt[p].bytesperline > max_bpl)
 616                         pfmt[p].bytesperline = max_bpl;
 617                 if (pfmt[p].bytesperline < bytesperline)
 618                         pfmt[p].bytesperline = bytesperline;
 619
 620                 pfmt[p].sizeimage = (pfmt[p].bytesperline * mp->height) /
 621                                 fmt->vdownsampling[p] + fmt->data_offset[p];
 622
 623                 memset(pfmt[p].reserved, 0, sizeof(pfmt[p].reserved));
 624         }
 625         for (p = fmt->buffers; p < fmt->planes; p++)
 626                 pfmt[0].sizeimage += (pfmt[0].bytesperline * mp->height *
 627                         (fmt->bit_depth[p] / fmt->vdownsampling[p])) /
 628                         (fmt->bit_depth[0] / fmt->vdownsampling[0]);
 629
 630         mp->colorspace = vivid_colorspace_cap(dev);
 631         if (fmt->color_enc == TGP_COLOR_ENC_HSV)
 632                 mp->hsv_enc = vivid_hsv_enc_cap(dev);
 633         else
 634                 mp->ycbcr_enc = vivid_ycbcr_enc_cap(dev);
 635         mp->xfer_func = vivid_xfer_func_cap(dev);
 636         mp->quantization = vivid_quantization_cap(dev);
 637         memset(mp->reserved, 0, sizeof(mp->reserved));
 638         return 0;
 639 }
 640
 641 int vivid_s_fmt_vid_cap(struct file *file, void *priv,
 642                                         struct v4l2_format *f)
 643 {
 644         struct v4l2_pix_format_mplane *mp = &f->fmt.pix_mp;
 645         struct vivid_dev *dev = video_drvdata(file);
 646         struct v4l2_rect *crop = &dev->crop_cap;
 647         struct v4l2_rect *compose = &dev->compose_cap;
 648         struct vb2_queue *q = &dev->vb_vid_cap_q;
 649         int ret = vivid_try_fmt_vid_cap(file, priv, f);
 650         unsigned factor = 1;
 651         unsigned p;
 652         unsigned i;
 653
 654         if (ret < 0)
 655                 return ret;
 656
 657         if (vb2_is_busy(q)) {
 658                 dprintk(dev, 1, "%s device busy\n", __func__);
 659                 return -EBUSY;
 660         }
 661
 662         if (dev->overlay_cap_owner && dev->fb_cap.fmt.pixelformat != mp->pixelformat) {
 663                 dprintk(dev, 1, "overlay is active, can't change pixelformat\n");
 664                 return -EBUSY;
 665         }
 666
 667         dev->fmt_cap = vivid_get_format(dev, mp->pixelformat);
 668         if (V4L2_FIELD_HAS_T_OR_B(mp->field))
 669                 factor = 2;
 670
 671         /* Note: the webcam input doesn't support scaling, cropping or composing */
 672
 673         if (!vivid_is_webcam(dev) &&
 674             (dev->has_scaler_cap || dev->has_crop_cap || dev->has_compose_cap)) {
 675                 struct v4l2_rect r = { 0, 0, mp->width, mp->height };
 676
 677                 if (dev->has_scaler_cap) {
 678                         if (dev->has_compose_cap)
 679                                 v4l2_rect_map_inside(compose, &r);
 680                         else
 681                                 *compose = r;
 682                         if (dev->has_crop_cap && !dev->has_compose_cap) {
 683                                 struct v4l2_rect min_r = {
 684                                         0, 0,
 685                                         r.width / MAX_ZOOM,
 686                                         factor * r.height / MAX_ZOOM
 687                                 };
 688                                 struct v4l2_rect max_r = {
 689                                         0, 0,
 690                                         r.width * MAX_ZOOM,
 691                                         factor * r.height * MAX_ZOOM
 692                                 };
 693
 694                                 v4l2_rect_set_min_size(crop, &min_r);
 695                                 v4l2_rect_set_max_size(crop, &max_r);
 696                                 v4l2_rect_map_inside(crop, &dev->crop_bounds_cap);
 697                         } else if (dev->has_crop_cap) {
 698                                 struct v4l2_rect min_r = {
 699                                         0, 0,
 700                                         compose->width / MAX_ZOOM,
 701                                         factor * compose->height / MAX_ZOOM
 702                                 };
 703                                 struct v4l2_rect max_r = {
 704                                         0, 0,
 705                                         compose->width * MAX_ZOOM,
 706                                         factor * compose->height * MAX_ZOOM
 707                                 };
 708
 709                                 v4l2_rect_set_min_size(crop, &min_r);
 710                                 v4l2_rect_set_max_size(crop, &max_r);
 711                                 v4l2_rect_map_inside(crop, &dev->crop_bounds_cap);
 712                         }
 713                 } else if (dev->has_crop_cap && !dev->has_compose_cap) {
 714                         r.height *= factor;
 715                         v4l2_rect_set_size_to(crop, &r);
 716                         v4l2_rect_map_inside(crop, &dev->crop_bounds_cap);
 717                         r = *crop;
 718                         r.height /= factor;
 719                         v4l2_rect_set_size_to(compose, &r);
 720                 } else if (!dev->has_crop_cap) {
 721                         v4l2_rect_map_inside(compose, &r);
 722                 } else {
 723                         r.height *= factor;
 724                         v4l2_rect_set_max_size(crop, &r);
 725                         v4l2_rect_map_inside(crop, &dev->crop_bounds_cap);
 726                         compose->top *= factor;
 727                         compose->height *= factor;
 728                         v4l2_rect_set_size_to(compose, crop);
 729                         v4l2_rect_map_inside(compose, &r);
 730                         compose->top /= factor;
 731                         compose->height /= factor;
 732                 }
 733         } else if (vivid_is_webcam(dev)) {
 734                 /* Guaranteed to be a match */
 735                 for (i = 0; i < ARRAY_SIZE(webcam_sizes); i++)
 736                         if (webcam_sizes[i].width == mp->width &&
 737                                         webcam_sizes[i].height == mp->height)
 738                                 break;
 739                 dev->webcam_size_idx = i;
 740                 if (dev->webcam_ival_idx >= 2 * (VIVID_WEBCAM_SIZES - i))
 741                         dev->webcam_ival_idx = 2 * (VIVID_WEBCAM_SIZES - i) - 1;
 742                 vivid_update_format_cap(dev, false);
 743         } else {
 744                 struct v4l2_rect r = { 0, 0, mp->width, mp->height };
 745
 746                 v4l2_rect_set_size_to(compose, &r);
 747                 r.height *= factor;
 748                 v4l2_rect_set_size_to(crop, &r);
 749         }
 750
 751         dev->fmt_cap_rect.width = mp->width;
 752         dev->fmt_cap_rect.height = mp->height;
 753         tpg_s_buf_height(&dev->tpg, mp->height);
 754         tpg_s_fourcc(&dev->tpg, dev->fmt_cap->fourcc);
 755         for (p = 0; p < tpg_g_buffers(&dev->tpg); p++)
 756                 tpg_s_bytesperline(&dev->tpg, p, mp->plane_fmt[p].bytesperline);
 757         dev->field_cap = mp->field;
 758         if (dev->field_cap == V4L2_FIELD_ALTERNATE)
 759                 tpg_s_field(&dev->tpg, V4L2_FIELD_TOP, true);
 760         else
 761                 tpg_s_field(&dev->tpg, dev->field_cap, false);
 762         tpg_s_crop_compose(&dev->tpg, &dev->crop_cap, &dev->compose_cap);
 763         if (vivid_is_sdtv_cap(dev))
 764                 dev->tv_field_cap = mp->field;
 765         tpg_update_mv_step(&dev->tpg);
 766         return 0;
 767 }
 768
 769 int vidioc_g_fmt_vid_cap_mplane(struct file *file, void *priv,
 770                                         struct v4l2_format *f)
 771 {
 772         struct vivid_dev *dev = video_drvdata(file);
 773
 774         if (!dev->multiplanar)
 775                 return -ENOTTY;
 776         return vivid_g_fmt_vid_cap(file, priv, f);
 777 }
 778
 779 int vidioc_try_fmt_vid_cap_mplane(struct file *file, void *priv,
 780                         struct v4l2_format *f)
 781 {
 782         struct vivid_dev *dev = video_drvdata(file);
 783
 784         if (!dev->multiplanar)
 785                 return -ENOTTY;
 786         return vivid_try_fmt_vid_cap(file, priv, f);
 787 }
 788
 789 int vidioc_s_fmt_vid_cap_mplane(struct file *file, void *priv,
 790                         struct v4l2_format *f)
 791 {
 792         struct vivid_dev *dev = video_drvdata(file);
 793
 794         if (!dev->multiplanar)
 795                 return -ENOTTY;
 796         return vivid_s_fmt_vid_cap(file, priv, f);
 797 }
 798
 799 int vidioc_g_fmt_vid_cap(struct file *file, void *priv,
 800                                         struct v4l2_format *f)
 801 {
 802         struct vivid_dev *dev = video_drvdata(file);
 803
 804         if (dev->multiplanar)
 805                 return -ENOTTY;
 806         return fmt_sp2mp_func(file, priv, f, vivid_g_fmt_vid_cap);
 807 }
 808
 809 int vidioc_try_fmt_vid_cap(struct file *file, void *priv,
 810                         struct v4l2_format *f)
 811 {
 812         struct vivid_dev *dev = video_drvdata(file);
 813
 814         if (dev->multiplanar)
 815                 return -ENOTTY;
 816         return fmt_sp2mp_func(file, priv, f, vivid_try_fmt_vid_cap);
 817 }
 818
 819 int vidioc_s_fmt_vid_cap(struct file *file, void *priv,
 820                         struct v4l2_format *f)
 821 {
 822         struct vivid_dev *dev = video_drvdata(file);
 823
 824         if (dev->multiplanar)
 825                 return -ENOTTY;
 826         return fmt_sp2mp_func(file, priv, f, vivid_s_fmt_vid_cap);
 827 }
 828
 829 int vivid_vid_cap_g_selection(struct file *file, void *priv,
 830                               struct v4l2_selection *sel)
 831 {
 832         struct vivid_dev *dev = video_drvdata(file);
 833
 834         if (!dev->has_crop_cap && !dev->has_compose_cap)
 835                 return -ENOTTY;
 836         if (sel->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
 837                 return -EINVAL;
 838         if (vivid_is_webcam(dev))
 839                 return -ENODATA;
 840
 841         sel->r.left = sel->r.top = 0;
 842         switch (sel->target) {
 843         case V4L2_SEL_TGT_CROP:
 844                 if (!dev->has_crop_cap)
 845                         return -EINVAL;
 846                 sel->r = dev->crop_cap;
 847                 break;
 848         case V4L2_SEL_TGT_CROP_DEFAULT:
 849         case V4L2_SEL_TGT_CROP_BOUNDS:
 850                 if (!dev->has_crop_cap)
 851                         return -EINVAL;
 852                 sel->r = dev->src_rect;
 853                 break;
 854         case V4L2_SEL_TGT_COMPOSE_BOUNDS:
 855                 if (!dev->has_compose_cap)
 856                         return -EINVAL;
 857                 sel->r = vivid_max_rect;
 858                 break;
 859         case V4L2_SEL_TGT_COMPOSE:
 860                 if (!dev->has_compose_cap)
 861                         return -EINVAL;
 862                 sel->r = dev->compose_cap;
 863                 break;
 864         case V4L2_SEL_TGT_COMPOSE_DEFAULT:
 865                 if (!dev->has_compose_cap)
 866                         return -EINVAL;
 867                 sel->r = dev->fmt_cap_rect;
 868                 break;
 869         default:
 870                 return -EINVAL;
 871         }
 872         return 0;
 873 }
 874
 875 int vivid_vid_cap_s_selection(struct file *file, void *fh, struct v4l2_selection *s)
 876 {
 877         struct vivid_dev *dev = video_drvdata(file);
 878         struct v4l2_rect *crop = &dev->crop_cap;
 879         struct v4l2_rect *compose = &dev->compose_cap;
 880         unsigned orig_compose_w = compose->width;
 881         unsigned orig_compose_h = compose->height;
 882         unsigned factor = V4L2_FIELD_HAS_T_OR_B(dev->field_cap) ? 2 : 1;
 883         int ret;
 884
 885         if (!dev->has_crop_cap && !dev->has_compose_cap)
 886                 return -ENOTTY;
 887         if (s->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
 888                 return -EINVAL;
 889         if (vivid_is_webcam(dev))
 890                 return -ENODATA;
 891
 892         switch (s->target) {
 893         case V4L2_SEL_TGT_CROP:
 894                 if (!dev->has_crop_cap)
 895                         return -EINVAL;
 896                 ret = vivid_vid_adjust_sel(s->flags, &s->r);
 897                 if (ret)
 898                         return ret;
 899                 v4l2_rect_set_min_size(&s->r, &vivid_min_rect);
 900                 v4l2_rect_set_max_size(&s->r, &dev->src_rect);
 901                 v4l2_rect_map_inside(&s->r, &dev->crop_bounds_cap);
 902                 s->r.top /= factor;
 903                 s->r.height /= factor;
 904                 if (dev->has_scaler_cap) {
 905                         struct v4l2_rect fmt = dev->fmt_cap_rect;
 906                         struct v4l2_rect max_rect = {
 907                                 0, 0,
 908                                 s->r.width * MAX_ZOOM,
 909                                 s->r.height * MAX_ZOOM
 910                         };
 911                         struct v4l2_rect min_rect = {
 912                                 0, 0,
 913                                 s->r.width / MAX_ZOOM,
 914                                 s->r.height / MAX_ZOOM
 915                         };
 916
 917                         v4l2_rect_set_min_size(&fmt, &min_rect);
 918                         if (!dev->has_compose_cap)
 919                                 v4l2_rect_set_max_size(&fmt, &max_rect);
 920                         if (!v4l2_rect_same_size(&dev->fmt_cap_rect, &fmt) &&
 921                             vb2_is_busy(&dev->vb_vid_cap_q))
 922                                 return -EBUSY;
 923                         if (dev->has_compose_cap) {
 924                                 v4l2_rect_set_min_size(compose, &min_rect);
 925                                 v4l2_rect_set_max_size(compose, &max_rect);
 926                                 v4l2_rect_map_inside(compose, &fmt);
 927                         }
 928                         dev->fmt_cap_rect = fmt;
 929                         tpg_s_buf_height(&dev->tpg, fmt.height);
 930                 } else if (dev->has_compose_cap) {
 931                         struct v4l2_rect fmt = dev->fmt_cap_rect;
 932
 933                         v4l2_rect_set_min_size(&fmt, &s->r);
 934                         if (!v4l2_rect_same_size(&dev->fmt_cap_rect, &fmt) &&
 935                             vb2_is_busy(&dev->vb_vid_cap_q))
 936                                 return -EBUSY;
 937                         dev->fmt_cap_rect = fmt;
 938                         tpg_s_buf_height(&dev->tpg, fmt.height);
 939                         v4l2_rect_set_size_to(compose, &s->r);
 940                         v4l2_rect_map_inside(compose, &dev->fmt_cap_rect);
 941                 } else {
 942                         if (!v4l2_rect_same_size(&s->r, &dev->fmt_cap_rect) &&
 943                             vb2_is_busy(&dev->vb_vid_cap_q))
 944                                 return -EBUSY;
 945                         v4l2_rect_set_size_to(&dev->fmt_cap_rect, &s->r);
 946                         v4l2_rect_set_size_to(compose, &s->r);
 947                         v4l2_rect_map_inside(compose, &dev->fmt_cap_rect);
 948                         tpg_s_buf_height(&dev->tpg, dev->fmt_cap_rect.height);
 949                 }
 950                 s->r.top *= factor;
 951                 s->r.height *= factor;
 952                 *crop = s->r;
 953                 break;
 954         case V4L2_SEL_TGT_COMPOSE:
 955                 if (!dev->has_compose_cap)
 956                         return -EINVAL;
 957                 ret = vivid_vid_adjust_sel(s->flags, &s->r);
 958                 if (ret)
 959                         return ret;
 960                 v4l2_rect_set_min_size(&s->r, &vivid_min_rect);
 961                 v4l2_rect_set_max_size(&s->r, &dev->fmt_cap_rect);
 962                 if (dev->has_scaler_cap) {
 963                         struct v4l2_rect max_rect = {
 964                                 0, 0,
 965                                 dev->src_rect.width * MAX_ZOOM,
 966                                 (dev->src_rect.height / factor) * MAX_ZOOM
 967                         };
 968
 969                         v4l2_rect_set_max_size(&s->r, &max_rect);
 970                         if (dev->has_crop_cap) {
 971                                 struct v4l2_rect min_rect = {
 972                                         0, 0,
 973                                         s->r.width / MAX_ZOOM,
 974                                         (s->r.height * factor) / MAX_ZOOM
 975                                 };
 976                                 struct v4l2_rect max_rect = {
 977                                         0, 0,
 978                                         s->r.width * MAX_ZOOM,
 979                                         (s->r.height * factor) * MAX_ZOOM
 980                                 };
 981
 982                                 v4l2_rect_set_min_size(crop, &min_rect);
 983                                 v4l2_rect_set_max_size(crop, &max_rect);
 984                                 v4l2_rect_map_inside(crop, &dev->crop_bounds_cap);
 985                         }
 986                 } else if (dev->has_crop_cap) {
 987                         s->r.top *= factor;
 988                         s->r.height *= factor;
 989                         v4l2_rect_set_max_size(&s->r, &dev->src_rect);
 990                         v4l2_rect_set_size_to(crop, &s->r);
 991                         v4l2_rect_map_inside(crop, &dev->crop_bounds_cap);
 992                         s->r.top /= factor;
 993                         s->r.height /= factor;
 994                 } else {
 995                         v4l2_rect_set_size_to(&s->r, &dev->src_rect);
 996                         s->r.height /= factor;
 997                 }
 998                 v4l2_rect_map_inside(&s->r, &dev->fmt_cap_rect);
 999                 *compose = s->r;
1000                 break;
1001         default:
1002                 return -EINVAL;
1003         }
1004
1005         if (dev->bitmap_cap && (compose->width != orig_compose_w ||
1006                                 compose->height != orig_compose_h)) {
1007                 vfree(dev->bitmap_cap);
1008                 dev->bitmap_cap = NULL;
1009         }
1010         tpg_s_crop_compose(&dev->tpg, crop, compose);
1011         return 0;
1012 }
1013
1014 int vivid_vid_cap_cropcap(struct file *file, void *priv,
1015                               struct v4l2_cropcap *cap)
1016 {
1017         struct vivid_dev *dev = video_drvdata(file);
1018
1019         if (cap->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
1020                 return -EINVAL;
1021
1022         switch (vivid_get_pixel_aspect(dev)) {
1023         case TPG_PIXEL_ASPECT_NTSC:
1024                 cap->pixelaspect.numerator = 11;
1025                 cap->pixelaspect.denominator = 10;
1026                 break;
1027         case TPG_PIXEL_ASPECT_PAL:
1028                 cap->pixelaspect.numerator = 54;
1029                 cap->pixelaspect.denominator = 59;
1030                 break;
1031         case TPG_PIXEL_ASPECT_SQUARE:
1032                 cap->pixelaspect.numerator = 1;
1033                 cap->pixelaspect.denominator = 1;
1034                 break;
1035         }
1036         return 0;
1037 }
1038
1039 int vidioc_enum_fmt_vid_overlay(struct file *file, void  *priv,
1040                                         struct v4l2_fmtdesc *f)
1041 {
1042         struct vivid_dev *dev = video_drvdata(file);
1043         const struct vivid_fmt *fmt;
1044
1045         if (dev->multiplanar)
1046                 return -ENOTTY;
1047
1048         if (f->index >= ARRAY_SIZE(formats_ovl))
1049                 return -EINVAL;
1050
1051         fmt = &formats_ovl[f->index];
1052
1053         f->pixelformat = fmt->fourcc;
1054         return 0;
1055 }
1056
1057 int vidioc_g_fmt_vid_overlay(struct file *file, void *priv,
1058                                         struct v4l2_format *f)
1059 {
1060         struct vivid_dev *dev = video_drvdata(file);
1061         const struct v4l2_rect *compose = &dev->compose_cap;
1062         struct v4l2_window *win = &f->fmt.win;
1063         unsigned clipcount = win->clipcount;
1064
1065         if (dev->multiplanar)
1066                 return -ENOTTY;
1067
1068         win->w.top = dev->overlay_cap_top;
1069         win->w.left = dev->overlay_cap_left;
1070         win->w.width = compose->width;
1071         win->w.height = compose->height;
1072         win->field = dev->overlay_cap_field;
1073         win->clipcount = dev->clipcount_cap;
1074         if (clipcount > dev->clipcount_cap)
1075                 clipcount = dev->clipcount_cap;
1076         if (dev->bitmap_cap == NULL)
1077                 win->bitmap = NULL;
1078         else if (win->bitmap) {
1079                 if (copy_to_user(win->bitmap, dev->bitmap_cap,
1080                     ((compose->width + 7) / 8) * compose->height))
1081                         return -EFAULT;
1082         }
1083         if (clipcount && win->clips) {
1084                 if (copy_to_user(win->clips, dev->clips_cap,
1085                                  clipcount * sizeof(dev->clips_cap[0])))
1086                         return -EFAULT;
1087         }
1088         return 0;
1089 }
1090
1091 int vidioc_try_fmt_vid_overlay(struct file *file, void *priv,
1092                                         struct v4l2_format *f)
1093 {
1094         struct vivid_dev *dev = video_drvdata(file);
1095         const struct v4l2_rect *compose = &dev->compose_cap;
1096         struct v4l2_window *win = &f->fmt.win;
1097         int i, j;
1098
1099         if (dev->multiplanar)
1100                 return -ENOTTY;
1101
1102         win->w.left = clamp_t(int, win->w.left,
1103                               -dev->fb_cap.fmt.width, dev->fb_cap.fmt.width);
1104         win->w.top = clamp_t(int, win->w.top,
1105                              -dev->fb_cap.fmt.height, dev->fb_cap.fmt.height);
1106         win->w.width = compose->width;
1107         win->w.height = compose->height;
1108         if (win->field != V4L2_FIELD_BOTTOM && win->field != V4L2_FIELD_TOP)
1109                 win->field = V4L2_FIELD_ANY;
1110         win->chromakey = 0;
1111         win->global_alpha = 0;
1112         if (win->clipcount && !win->clips)
1113                 win->clipcount = 0;
1114         if (win->clipcount > MAX_CLIPS)
1115                 win->clipcount = MAX_CLIPS;
1116         if (win->clipcount) {
1117                 if (copy_from_user(dev->try_clips_cap, win->clips,
1118                                    win->clipcount * sizeof(dev->clips_cap[0])))
1119                         return -EFAULT;
1120                 for (i = 0; i < win->clipcount; i++) {
1121                         struct v4l2_rect *r = &dev->try_clips_cap[i].c;
1122
1123                         r->top = clamp_t(s32, r->top, 0, dev->fb_cap.fmt.height - 1);
1124                         r->height = clamp_t(s32, r->height, 1, dev->fb_cap.fmt.height - r->top);
1125                         r->left = clamp_t(u32, r->left, 0, dev->fb_cap.fmt.width - 1);
1126                         r->width = clamp_t(u32, r->width, 1, dev->fb_cap.fmt.width - r->left);
1127                 }
1128                 /*
1129                  * Yeah, so sue me, it's an O(n^2) algorithm. But n is a small
1130                  * number and it's typically a one-time deal.
1131                  */
1132                 for (i = 0; i < win->clipcount - 1; i++) {
1133                         struct v4l2_rect *r1 = &dev->try_clips_cap[i].c;
1134
1135                         for (j = i + 1; j < win->clipcount; j++) {
1136                                 struct v4l2_rect *r2 = &dev->try_clips_cap[j].c;
1137
1138                                 if (v4l2_rect_overlap(r1, r2))
1139                                         return -EINVAL;
1140                         }
1141                 }
1142                 if (copy_to_user(win->clips, dev->try_clips_cap,
1143                                  win->clipcount * sizeof(dev->clips_cap[0])))
1144                         return -EFAULT;
1145         }
1146         return 0;
1147 }
1148
1149 int vidioc_s_fmt_vid_overlay(struct file *file, void *priv,
1150                                         struct v4l2_format *f)
1151 {
1152         struct vivid_dev *dev = video_drvdata(file);
1153         const struct v4l2_rect *compose = &dev->compose_cap;
1154         struct v4l2_window *win = &f->fmt.win;
1155         int ret = vidioc_try_fmt_vid_overlay(file, priv, f);
1156         unsigned bitmap_size = ((compose->width + 7) / 8) * compose->height;
1157         unsigned clips_size = win->clipcount * sizeof(dev->clips_cap[0]);
1158         void *new_bitmap = NULL;
1159
1160         if (ret)
1161                 return ret;
1162
1163         if (win->bitmap) {
1164                 new_bitmap = vzalloc(bitmap_size);
1165
1166                 if (new_bitmap == NULL)
1167                         return -ENOMEM;
1168                 if (copy_from_user(new_bitmap, win->bitmap, bitmap_size)) {
1169                         vfree(new_bitmap);
1170                         return -EFAULT;
1171                 }
1172         }
1173
1174         dev->overlay_cap_top = win->w.top;
1175         dev->overlay_cap_left = win->w.left;
1176         dev->overlay_cap_field = win->field;
1177         vfree(dev->bitmap_cap);
1178         dev->bitmap_cap = new_bitmap;
1179         dev->clipcount_cap = win->clipcount;
1180         if (dev->clipcount_cap)
1181                 memcpy(dev->clips_cap, dev->try_clips_cap, clips_size);
1182         return 0;
1183 }
1184
1185 int vivid_vid_cap_overlay(struct file *file, void *fh, unsigned i)
1186 {
1187         struct vivid_dev *dev = video_drvdata(file);
1188
1189         if (dev->multiplanar)
1190                 return -ENOTTY;
1191
1192         if (i && dev->fb_vbase_cap == NULL)
1193                 return -EINVAL;
1194
1195         if (i && dev->fb_cap.fmt.pixelformat != dev->fmt_cap->fourcc) {
1196                 dprintk(dev, 1, "mismatch between overlay and video capture pixelformats\n");
1197                 return -EINVAL;
1198         }
1199
1200         if (dev->overlay_cap_owner && dev->overlay_cap_owner != fh)
1201                 return -EBUSY;
1202         dev->overlay_cap_owner = i ? fh : NULL;
1203         return 0;
1204 }
1205
1206 int vivid_vid_cap_g_fbuf(struct file *file, void *fh,
1207                                 struct v4l2_framebuffer *a)
1208 {
1209         struct vivid_dev *dev = video_drvdata(file);
1210
1211         if (dev->multiplanar)
1212                 return -ENOTTY;
1213
1214         *a = dev->fb_cap;
1215         a->capability = V4L2_FBUF_CAP_BITMAP_CLIPPING |
1216                         V4L2_FBUF_CAP_LIST_CLIPPING;
1217         a->flags = V4L2_FBUF_FLAG_PRIMARY;
1218         a->fmt.field = V4L2_FIELD_NONE;
1219         a->fmt.colorspace = V4L2_COLORSPACE_SRGB;
1220         a->fmt.priv = 0;
1221         return 0;
1222 }
1223
1224 int vivid_vid_cap_s_fbuf(struct file *file, void *fh,
1225                                 const struct v4l2_framebuffer *a)
1226 {
1227         struct vivid_dev *dev = video_drvdata(file);
1228         const struct vivid_fmt *fmt;
1229
1230         if (dev->multiplanar)
1231                 return -ENOTTY;
1232
1233         if (!capable(CAP_SYS_ADMIN) && !capable(CAP_SYS_RAWIO))
1234                 return -EPERM;
1235
1236         if (dev->overlay_cap_owner)
1237                 return -EBUSY;
1238
1239         if (a->base == NULL) {
1240                 dev->fb_cap.base = NULL;
1241                 dev->fb_vbase_cap = NULL;
1242                 return 0;
1243         }
1244
1245         if (a->fmt.width < 48 || a->fmt.height < 32)
1246                 return -EINVAL;
1247         fmt = vivid_get_format(dev, a->fmt.pixelformat);
1248         if (!fmt || !fmt->can_do_overlay)
1249                 return -EINVAL;
1250         if (a->fmt.bytesperline < (a->fmt.width * fmt->bit_depth[0]) / 8)
1251                 return -EINVAL;
1252         if (a->fmt.bytesperline > a->fmt.sizeimage / a->fmt.height)
1253                 return -EINVAL;
1254
1255         /*
1256          * Only support the framebuffer of one of the vivid instances.
1257          * Anything else is rejected.
1258          */
1259         if (!vivid_validate_fb(a))
1260                 return -EINVAL;
1261
1262         dev->fb_vbase_cap = phys_to_virt((unsigned long)a->base);
1263         dev->fb_cap = *a;
1264         dev->overlay_cap_left = clamp_t(int, dev->overlay_cap_left,
1265                                     -dev->fb_cap.fmt.width, dev->fb_cap.fmt.width);
1266         dev->overlay_cap_top = clamp_t(int, dev->overlay_cap_top,
1267                                    -dev->fb_cap.fmt.height, dev->fb_cap.fmt.height);
1268         return 0;
1269 }
1270
1271 static const struct v4l2_audio vivid_audio_inputs[] = {
1272         { 0, "TV", V4L2_AUDCAP_STEREO },
1273         { 1, "Line-In", V4L2_AUDCAP_STEREO },
1274 };
1275
1276 int vidioc_enum_input(struct file *file, void *priv,
1277                                 struct v4l2_input *inp)
1278 {
1279         struct vivid_dev *dev = video_drvdata(file);
1280
1281         if (inp->index >= dev->num_inputs)
1282                 return -EINVAL;
1283
1284         inp->type = V4L2_INPUT_TYPE_CAMERA;
1285         switch (dev->input_type[inp->index]) {
1286         case WEBCAM:
1287                 snprintf(inp->name, sizeof(inp->name), "Webcam %u",
1288                                 dev->input_name_counter[inp->index]);
1289                 inp->capabilities = 0;
1290                 break;
1291         case TV:
1292                 snprintf(inp->name, sizeof(inp->name), "TV %u",
1293                                 dev->input_name_counter[inp->index]);
1294                 inp->type = V4L2_INPUT_TYPE_TUNER;
1295                 inp->std = V4L2_STD_ALL;
1296                 if (dev->has_audio_inputs)
1297                         inp->audioset = (1 << ARRAY_SIZE(vivid_audio_inputs)) - 1;
1298                 inp->capabilities = V4L2_IN_CAP_STD;
1299                 break;
1300         case SVID:
1301                 snprintf(inp->name, sizeof(inp->name), "S-Video %u",
1302                                 dev->input_name_counter[inp->index]);
1303                 inp->std = V4L2_STD_ALL;
1304                 if (dev->has_audio_inputs)
1305                         inp->audioset = (1 << ARRAY_SIZE(vivid_audio_inputs)) - 1;
1306                 inp->capabilities = V4L2_IN_CAP_STD;
1307                 break;
1308         case HDMI:
1309                 snprintf(inp->name, sizeof(inp->name), "HDMI %u",
1310                                 dev->input_name_counter[inp->index]);
1311                 inp->capabilities = V4L2_IN_CAP_DV_TIMINGS;
1312                 if (dev->edid_blocks == 0 ||
1313                     dev->dv_timings_signal_mode == NO_SIGNAL)
1314                         inp->status |= V4L2_IN_ST_NO_SIGNAL;
1315                 else if (dev->dv_timings_signal_mode == NO_LOCK ||
1316                          dev->dv_timings_signal_mode == OUT_OF_RANGE)
1317                         inp->status |= V4L2_IN_ST_NO_H_LOCK;
1318                 break;
1319         }
1320         if (dev->sensor_hflip)
1321                 inp->status |= V4L2_IN_ST_HFLIP;
1322         if (dev->sensor_vflip)
1323                 inp->status |= V4L2_IN_ST_VFLIP;
1324         if (dev->input == inp->index && vivid_is_sdtv_cap(dev)) {
1325                 if (dev->std_signal_mode == NO_SIGNAL) {
1326                         inp->status |= V4L2_IN_ST_NO_SIGNAL;
1327                 } else if (dev->std_signal_mode == NO_LOCK) {
1328                         inp->status |= V4L2_IN_ST_NO_H_LOCK;
1329                 } else if (vivid_is_tv_cap(dev)) {
1330                         switch (tpg_g_quality(&dev->tpg)) {
1331                         case TPG_QUAL_GRAY:
1332                                 inp->status |= V4L2_IN_ST_COLOR_KILL;
1333                                 break;
1334                         case TPG_QUAL_NOISE:
1335                                 inp->status |= V4L2_IN_ST_NO_H_LOCK;
1336                                 break;
1337                         default:
1338                                 break;
1339                         }
1340                 }
1341         }
1342         return 0;
1343 }
1344
1345 int vidioc_g_input(struct file *file, void *priv, unsigned *i)
1346 {
1347         struct vivid_dev *dev = video_drvdata(file);
1348
1349         *i = dev->input;
1350         return 0;
1351 }
1352
1353 int vidioc_s_input(struct file *file, void *priv, unsigned i)
1354 {
1355         struct vivid_dev *dev = video_drvdata(file);
1356         struct v4l2_bt_timings *bt = &dev->dv_timings_cap.bt;
1357         unsigned brightness;
1358
1359         if (i >= dev->num_inputs)
1360                 return -EINVAL;
1361
1362         if (i == dev->input)
1363                 return 0;
1364
1365         if (vb2_is_busy(&dev->vb_vid_cap_q) || vb2_is_busy(&dev->vb_vbi_cap_q))
1366                 return -EBUSY;
1367
1368         dev->input = i;
1369         dev->vid_cap_dev.tvnorms = 0;
1370         if (dev->input_type[i] == TV || dev->input_type[i] == SVID) {
1371                 dev->tv_audio_input = (dev->input_type[i] == TV) ? 0 : 1;
1372                 dev->vid_cap_dev.tvnorms = V4L2_STD_ALL;
1373         }
1374         dev->vbi_cap_dev.tvnorms = dev->vid_cap_dev.tvnorms;
1375         vivid_update_format_cap(dev, false);
1376
1377         if (dev->colorspace) {
1378                 switch (dev->input_type[i]) {
1379                 case WEBCAM:
1380                         v4l2_ctrl_s_ctrl(dev->colorspace, VIVID_CS_SRGB);
1381                         break;
1382                 case TV:
1383                 case SVID:
1384                         v4l2_ctrl_s_ctrl(dev->colorspace, VIVID_CS_170M);
1385                         break;
1386                 case HDMI:
1387                         if (bt->flags & V4L2_DV_FL_IS_CE_VIDEO) {
1388                                 if (dev->src_rect.width == 720 && dev->src_rect.height <= 576)
1389                                         v4l2_ctrl_s_ctrl(dev->colorspace, VIVID_CS_170M);
1390                                 else
1391                                         v4l2_ctrl_s_ctrl(dev->colorspace, VIVID_CS_709);
1392                         } else {
1393                                 v4l2_ctrl_s_ctrl(dev->colorspace, VIVID_CS_SRGB);
1394                         }
1395                         break;
1396                 }
1397         }
1398
1399         /*
1400          * Modify the brightness range depending on the input.
1401          * This makes it easy to use vivid to test if applications can
1402          * handle control range modifications and is also how this is
1403          * typically used in practice as different inputs may be hooked
1404          * up to different receivers with different control ranges.
1405          */
1406         brightness = 128 * i + dev->input_brightness[i];
1407         v4l2_ctrl_modify_range(dev->brightness,
1408                         128 * i, 255 + 128 * i, 1, 128 + 128 * i);
1409         v4l2_ctrl_s_ctrl(dev->brightness, brightness);
1410         return 0;
1411 }
1412
1413 int vidioc_enumaudio(struct file *file, void *fh, struct v4l2_audio *vin)
1414 {
1415         if (vin->index >= ARRAY_SIZE(vivid_audio_inputs))
1416                 return -EINVAL;
1417         *vin = vivid_audio_inputs[vin->index];
1418         return 0;
1419 }
1420
1421 int vidioc_g_audio(struct file *file, void *fh, struct v4l2_audio *vin)
1422 {
1423         struct vivid_dev *dev = video_drvdata(file);
1424
1425         if (!vivid_is_sdtv_cap(dev))
1426                 return -EINVAL;
1427         *vin = vivid_audio_inputs[dev->tv_audio_input];
1428         return 0;
1429 }
1430
1431 int vidioc_s_audio(struct file *file, void *fh, const struct v4l2_audio *vin)
1432 {
1433         struct vivid_dev *dev = video_drvdata(file);
1434
1435         if (!vivid_is_sdtv_cap(dev))
1436                 return -EINVAL;
1437         if (vin->index >= ARRAY_SIZE(vivid_audio_inputs))
1438                 return -EINVAL;
1439         dev->tv_audio_input = vin->index;
1440         return 0;
1441 }
1442
1443 int vivid_video_g_frequency(struct file *file, void *fh, struct v4l2_frequency *vf)
1444 {
1445         struct vivid_dev *dev = video_drvdata(file);
1446
1447         if (vf->tuner != 0)
1448                 return -EINVAL;
1449         vf->frequency = dev->tv_freq;
1450         return 0;
1451 }
1452
1453 int vivid_video_s_frequency(struct file *file, void *fh, const struct v4l2_frequency *vf)
1454 {
1455         struct vivid_dev *dev = video_drvdata(file);
1456
1457         if (vf->tuner != 0)
1458                 return -EINVAL;
1459         dev->tv_freq = clamp_t(unsigned, vf->frequency, MIN_TV_FREQ, MAX_TV_FREQ);
1460         if (vivid_is_tv_cap(dev))
1461                 vivid_update_quality(dev);
1462         return 0;
1463 }
1464
1465 int vivid_video_s_tuner(struct file *file, void *fh, const struct v4l2_tuner *vt)
1466 {
1467         struct vivid_dev *dev = video_drvdata(file);
1468
1469         if (vt->index != 0)
1470                 return -EINVAL;
1471         if (vt->audmode > V4L2_TUNER_MODE_LANG1_LANG2)
1472                 return -EINVAL;
1473         dev->tv_audmode = vt->audmode;
1474         return 0;
1475 }
1476
1477 int vivid_video_g_tuner(struct file *file, void *fh, struct v4l2_tuner *vt)
1478 {
1479         struct vivid_dev *dev = video_drvdata(file);
1480         enum tpg_quality qual;
1481
1482         if (vt->index != 0)
1483                 return -EINVAL;
1484
1485         vt->capability = V4L2_TUNER_CAP_NORM | V4L2_TUNER_CAP_STEREO |
1486                          V4L2_TUNER_CAP_LANG1 | V4L2_TUNER_CAP_LANG2;
1487         vt->audmode = dev->tv_audmode;
1488         vt->rangelow = MIN_TV_FREQ;
1489         vt->rangehigh = MAX_TV_FREQ;
1490         qual = vivid_get_quality(dev, &vt->afc);
1491         if (qual == TPG_QUAL_COLOR)
1492                 vt->signal = 0xffff;
1493         else if (qual == TPG_QUAL_GRAY)
1494                 vt->signal = 0x8000;
1495         else
1496                 vt->signal = 0;
1497         if (qual == TPG_QUAL_NOISE) {
1498                 vt->rxsubchans = 0;
1499         } else if (qual == TPG_QUAL_GRAY) {
1500                 vt->rxsubchans = V4L2_TUNER_SUB_MONO;
1501         } else {
1502                 unsigned channel_nr = dev->tv_freq / (6 * 16);
1503                 unsigned options = (dev->std_cap & V4L2_STD_NTSC_M) ? 4 : 3;
1504
1505                 switch (channel_nr % options) {
1506                 case 0:
1507                         vt->rxsubchans = V4L2_TUNER_SUB_MONO;
1508                         break;
1509                 case 1:
1510                         vt->rxsubchans = V4L2_TUNER_SUB_STEREO;
1511                         break;
1512                 case 2:
1513                         if (dev->std_cap & V4L2_STD_NTSC_M)
1514                                 vt->rxsubchans = V4L2_TUNER_SUB_MONO | V4L2_TUNER_SUB_SAP;
1515                         else
1516                                 vt->rxsubchans = V4L2_TUNER_SUB_LANG1 | V4L2_TUNER_SUB_LANG2;
1517                         break;
1518                 case 3:
1519                         vt->rxsubchans = V4L2_TUNER_SUB_STEREO | V4L2_TUNER_SUB_SAP;
1520                         break;
1521                 }
1522         }
1523         strlcpy(vt->name, "TV Tuner", sizeof(vt->name));
1524         return 0;
1525 }
1526
1527 /* Must remain in sync with the vivid_ctrl_standard_strings array */
1528 const v4l2_std_id vivid_standard[] = {
1529         V4L2_STD_NTSC_M,
1530         V4L2_STD_NTSC_M_JP,
1531         V4L2_STD_NTSC_M_KR,
1532         V4L2_STD_NTSC_443,
1533         V4L2_STD_PAL_BG | V4L2_STD_PAL_H,
1534         V4L2_STD_PAL_I,
1535         V4L2_STD_PAL_DK,
1536         V4L2_STD_PAL_M,
1537         V4L2_STD_PAL_N,
1538         V4L2_STD_PAL_Nc,
1539         V4L2_STD_PAL_60,
1540         V4L2_STD_SECAM_B | V4L2_STD_SECAM_G | V4L2_STD_SECAM_H,
1541         V4L2_STD_SECAM_DK,
1542         V4L2_STD_SECAM_L,
1543         V4L2_STD_SECAM_LC,
1544         V4L2_STD_UNKNOWN
1545 };
1546
1547 /* Must remain in sync with the vivid_standard array */
1548 const char * const vivid_ctrl_standard_strings[] = {
1549         "NTSC-M",
1550         "NTSC-M-JP",
1551         "NTSC-M-KR",
1552         "NTSC-443",
1553         "PAL-BGH",
1554         "PAL-I",
1555         "PAL-DK",
1556         "PAL-M",
1557         "PAL-N",
1558         "PAL-Nc",
1559         "PAL-60",
1560         "SECAM-BGH",
1561         "SECAM-DK",
1562         "SECAM-L",
1563         "SECAM-Lc",
1564         NULL,
1565 };
1566
1567 int vidioc_querystd(struct file *file, void *priv, v4l2_std_id *id)
1568 {
1569         struct vivid_dev *dev = video_drvdata(file);
1570
1571         if (!vivid_is_sdtv_cap(dev))
1572                 return -ENODATA;
1573         if (dev->std_signal_mode == NO_SIGNAL ||
1574             dev->std_signal_mode == NO_LOCK) {
1575                 *id = V4L2_STD_UNKNOWN;
1576                 return 0;
1577         }
1578         if (vivid_is_tv_cap(dev) && tpg_g_quality(&dev->tpg) == TPG_QUAL_NOISE) {
1579                 *id = V4L2_STD_UNKNOWN;
1580         } else if (dev->std_signal_mode == CURRENT_STD) {
1581                 *id = dev->std_cap;
1582         } else if (dev->std_signal_mode == SELECTED_STD) {
1583                 *id = dev->query_std;
1584         } else {
1585                 *id = vivid_standard[dev->query_std_last];
1586                 dev->query_std_last = (dev->query_std_last + 1) % ARRAY_SIZE(vivid_standard);
1587         }
1588
1589         return 0;
1590 }
1591
1592 int vivid_vid_cap_s_std(struct file *file, void *priv, v4l2_std_id id)
1593 {
1594         struct vivid_dev *dev = video_drvdata(file);
1595
1596         if (!vivid_is_sdtv_cap(dev))
1597                 return -ENODATA;
1598         if (dev->std_cap == id)
1599                 return 0;
1600         if (vb2_is_busy(&dev->vb_vid_cap_q) || vb2_is_busy(&dev->vb_vbi_cap_q))
1601                 return -EBUSY;
1602         dev->std_cap = id;
1603         vivid_update_format_cap(dev, false);
1604         return 0;
1605 }
1606
1607 static void find_aspect_ratio(u32 width, u32 height,
1608                                u32 *num, u32 *denom)
1609 {
1610         if (!(height % 3) && ((height * 4 / 3) == width)) {
1611                 *num = 4;
1612                 *denom = 3;
1613         } else if (!(height % 9) && ((height * 16 / 9) == width)) {
1614                 *num = 16;
1615                 *denom = 9;
1616         } else if (!(height % 10) && ((height * 16 / 10) == width)) {
1617                 *num = 16;
1618                 *denom = 10;
1619         } else if (!(height % 4) && ((height * 5 / 4) == width)) {
1620                 *num = 5;
1621                 *denom = 4;
1622         } else if (!(height % 9) && ((height * 15 / 9) == width)) {
1623                 *num = 15;
1624                 *denom = 9;
1625         } else { /* default to 16:9 */
1626                 *num = 16;
1627                 *denom = 9;
1628         }
1629 }
1630
1631 static bool valid_cvt_gtf_timings(struct v4l2_dv_timings *timings)
1632 {
1633         struct v4l2_bt_timings *bt = &timings->bt;
1634         u32 total_h_pixel;
1635         u32 total_v_lines;
1636         u32 h_freq;
1637
1638         if (!v4l2_valid_dv_timings(timings, &vivid_dv_timings_cap,
1639                                 NULL, NULL))
1640                 return false;
1641
1642         total_h_pixel = V4L2_DV_BT_FRAME_WIDTH(bt);
1643         total_v_lines = V4L2_DV_BT_FRAME_HEIGHT(bt);
1644
1645         h_freq = (u32)bt->pixelclock / total_h_pixel;
1646
1647         if (bt->standards == 0 || (bt->standards & V4L2_DV_BT_STD_CVT)) {
1648                 if (v4l2_detect_cvt(total_v_lines, h_freq, bt->vsync, bt->width,
1649                                     bt->polarities, bt->interlaced, timings))
1650                         return true;
1651         }
1652
1653         if (bt->standards == 0 || (bt->standards & V4L2_DV_BT_STD_GTF)) {
1654                 struct v4l2_fract aspect_ratio;
1655
1656                 find_aspect_ratio(bt->width, bt->height,
1657                                   &aspect_ratio.numerator,
1658                                   &aspect_ratio.denominator);
1659                 if (v4l2_detect_gtf(total_v_lines, h_freq, bt->vsync,
1660                                     bt->polarities, bt->interlaced,
1661                                     aspect_ratio, timings))
1662                         return true;
1663         }
1664         return false;
1665 }
1666
1667 int vivid_vid_cap_s_dv_timings(struct file *file, void *_fh,
1668                                     struct v4l2_dv_timings *timings)
1669 {
1670         struct vivid_dev *dev = video_drvdata(file);
1671
1672         if (!vivid_is_hdmi_cap(dev))
1673                 return -ENODATA;
1674         if (!v4l2_find_dv_timings_cap(timings, &vivid_dv_timings_cap,
1675                                       0, NULL, NULL) &&
1676             !valid_cvt_gtf_timings(timings))
1677                 return -EINVAL;
1678
1679         if (v4l2_match_dv_timings(timings, &dev->dv_timings_cap, 0, false))
1680                 return 0;
1681         if (vb2_is_busy(&dev->vb_vid_cap_q))
1682                 return -EBUSY;
1683
1684         dev->dv_timings_cap = *timings;
1685         vivid_update_format_cap(dev, false);
1686         return 0;
1687 }
1688
1689 int vidioc_query_dv_timings(struct file *file, void *_fh,
1690                                     struct v4l2_dv_timings *timings)
1691 {
1692         struct vivid_dev *dev = video_drvdata(file);
1693
1694         if (!vivid_is_hdmi_cap(dev))
1695                 return -ENODATA;
1696         if (dev->dv_timings_signal_mode == NO_SIGNAL ||
1697             dev->edid_blocks == 0)
1698                 return -ENOLINK;
1699         if (dev->dv_timings_signal_mode == NO_LOCK)
1700                 return -ENOLCK;
1701         if (dev->dv_timings_signal_mode == OUT_OF_RANGE) {
1702                 timings->bt.pixelclock = vivid_dv_timings_cap.bt.max_pixelclock * 2;
1703                 return -ERANGE;
1704         }
1705         if (dev->dv_timings_signal_mode == CURRENT_DV_TIMINGS) {
1706                 *timings = dev->dv_timings_cap;
1707         } else if (dev->dv_timings_signal_mode == SELECTED_DV_TIMINGS) {
1708                 *timings = v4l2_dv_timings_presets[dev->query_dv_timings];
1709         } else {
1710                 *timings = v4l2_dv_timings_presets[dev->query_dv_timings_last];
1711                 dev->query_dv_timings_last = (dev->query_dv_timings_last + 1) %
1712                                                 dev->query_dv_timings_size;
1713         }
1714         return 0;
1715 }
1716
1717 int vidioc_s_edid(struct file *file, void *_fh,
1718                          struct v4l2_edid *edid)
1719 {
1720         struct vivid_dev *dev = video_drvdata(file);
1721         u16 phys_addr;
1722         unsigned int i;
1723         int ret;
1724
1725         memset(edid->reserved, 0, sizeof(edid->reserved));
1726         if (edid->pad >= dev->num_inputs)
1727                 return -EINVAL;
1728         if (dev->input_type[edid->pad] != HDMI || edid->start_block)
1729                 return -EINVAL;
1730         if (edid->blocks == 0) {
1731                 dev->edid_blocks = 0;
1732                 phys_addr = CEC_PHYS_ADDR_INVALID;
1733                 goto set_phys_addr;
1734         }
1735         if (edid->blocks > dev->edid_max_blocks) {
1736                 edid->blocks = dev->edid_max_blocks;
1737                 return -E2BIG;
1738         }
1739         phys_addr = cec_get_edid_phys_addr(edid->edid, edid->blocks * 128, NULL);
1740         ret = v4l2_phys_addr_validate(phys_addr, &phys_addr, NULL);
1741         if (ret)
1742                 return ret;
1743
1744         if (vb2_is_busy(&dev->vb_vid_cap_q))
1745                 return -EBUSY;
1746
1747         dev->edid_blocks = edid->blocks;
1748         memcpy(dev->edid, edid->edid, edid->blocks * 128);
1749
1750 set_phys_addr:
1751         /* TODO: a proper hotplug detect cycle should be emulated here */
1752         cec_s_phys_addr(dev->cec_rx_adap, phys_addr, false);
1753
1754         for (i = 0; i < MAX_OUTPUTS && dev->cec_tx_adap[i]; i++)
1755                 cec_s_phys_addr(dev->cec_tx_adap[i],
1756                                 v4l2_phys_addr_for_input(phys_addr, i + 1),
1757                                 false);
1758         return 0;
1759 }
1760
1761 int vidioc_enum_framesizes(struct file *file, void *fh,
1762                                          struct v4l2_frmsizeenum *fsize)
1763 {
1764         struct vivid_dev *dev = video_drvdata(file);
1765
1766         if (!vivid_is_webcam(dev) && !dev->has_scaler_cap)
1767                 return -EINVAL;
1768         if (vivid_get_format(dev, fsize->pixel_format) == NULL)
1769                 return -EINVAL;
1770         if (vivid_is_webcam(dev)) {
1771                 if (fsize->index >= ARRAY_SIZE(webcam_sizes))
1772                         return -EINVAL;
1773                 fsize->type = V4L2_FRMSIZE_TYPE_DISCRETE;
1774                 fsize->discrete = webcam_sizes[fsize->index];
1775                 return 0;
1776         }
1777         if (fsize->index)
1778                 return -EINVAL;
1779         fsize->type = V4L2_FRMSIZE_TYPE_STEPWISE;
1780         fsize->stepwise.min_width = MIN_WIDTH;
1781         fsize->stepwise.max_width = MAX_WIDTH * MAX_ZOOM;
1782         fsize->stepwise.step_width = 2;
1783         fsize->stepwise.min_height = MIN_HEIGHT;
1784         fsize->stepwise.max_height = MAX_HEIGHT * MAX_ZOOM;
1785         fsize->stepwise.step_height = 2;
1786         return 0;
1787 }
1788
1789 /* timeperframe is arbitrary and continuous */
1790 int vidioc_enum_frameintervals(struct file *file, void *priv,
1791                                              struct v4l2_frmivalenum *fival)
1792 {
1793         struct vivid_dev *dev = video_drvdata(file);
1794         const struct vivid_fmt *fmt;
1795         int i;
1796
1797         fmt = vivid_get_format(dev, fival->pixel_format);
1798         if (!fmt)
1799                 return -EINVAL;
1800
1801         if (!vivid_is_webcam(dev)) {
1802                 if (fival->index)
1803                         return -EINVAL;
1804                 if (fival->width < MIN_WIDTH || fival->width > MAX_WIDTH * MAX_ZOOM)
1805                         return -EINVAL;
1806                 if (fival->height < MIN_HEIGHT || fival->height > MAX_HEIGHT * MAX_ZOOM)
1807                         return -EINVAL;
1808                 fival->type = V4L2_FRMIVAL_TYPE_DISCRETE;
1809                 fival->discrete = dev->timeperframe_vid_cap;
1810                 return 0;
1811         }
1812
1813         for (i = 0; i < ARRAY_SIZE(webcam_sizes); i++)
1814                 if (fival->width == webcam_sizes[i].width &&
1815                     fival->height == webcam_sizes[i].height)
1816                         break;
1817         if (i == ARRAY_SIZE(webcam_sizes))
1818                 return -EINVAL;
1819         if (fival->index >= 2 * (VIVID_WEBCAM_SIZES - i))
1820                 return -EINVAL;
1821         fival->type = V4L2_FRMIVAL_TYPE_DISCRETE;
1822         fival->discrete = webcam_intervals[fival->index];
1823         return 0;
1824 }
1825
1826 int vivid_vid_cap_g_parm(struct file *file, void *priv,
1827                           struct v4l2_streamparm *parm)
1828 {
1829         struct vivid_dev *dev = video_drvdata(file);
1830
1831         if (parm->type != (dev->multiplanar ?
1832                            V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE :
1833                            V4L2_BUF_TYPE_VIDEO_CAPTURE))
1834                 return -EINVAL;
1835
1836         parm->parm.capture.capability   = V4L2_CAP_TIMEPERFRAME;
1837         parm->parm.capture.timeperframe = dev->timeperframe_vid_cap;
1838         parm->parm.capture.readbuffers  = 1;
1839         return 0;
1840 }
1841
1842 #define FRACT_CMP(a, OP, b)     \
1843         ((u64)(a).numerator * (b).denominator  OP  (u64)(b).numerator * (a).denominator)
1844
1845 int vivid_vid_cap_s_parm(struct file *file, void *priv,
1846                           struct v4l2_streamparm *parm)
1847 {
1848         struct vivid_dev *dev = video_drvdata(file);
1849         unsigned ival_sz = 2 * (VIVID_WEBCAM_SIZES - dev->webcam_size_idx);
1850         struct v4l2_fract tpf;
1851         unsigned i;
1852
1853         if (parm->type != (dev->multiplanar ?
1854                            V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE :
1855                            V4L2_BUF_TYPE_VIDEO_CAPTURE))
1856                 return -EINVAL;
1857         if (!vivid_is_webcam(dev))
1858                 return vivid_vid_cap_g_parm(file, priv, parm);
1859
1860         tpf = parm->parm.capture.timeperframe;
1861
1862         if (tpf.denominator == 0)
1863                 tpf = webcam_intervals[ival_sz - 1];
1864         for (i = 0; i < ival_sz; i++)
1865                 if (FRACT_CMP(tpf, >=, webcam_intervals[i]))
1866                         break;
1867         if (i == ival_sz)
1868                 i = ival_sz - 1;
1869         dev->webcam_ival_idx = i;
1870         tpf = webcam_intervals[dev->webcam_ival_idx];
1871         tpf = FRACT_CMP(tpf, <, tpf_min) ? tpf_min : tpf;
1872         tpf = FRACT_CMP(tpf, >, tpf_max) ? tpf_max : tpf;
1873
1874         /* resync the thread's timings */
1875         dev->cap_seq_resync = true;
1876         dev->timeperframe_vid_cap = tpf;
1877         parm->parm.capture.capability   = V4L2_CAP_TIMEPERFRAME;
1878         parm->parm.capture.timeperframe = tpf;
1879         parm->parm.capture.readbuffers  = 1;
1880         return 0;
1881 }