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

   1 /*
   2  * vivid-vid-cap.c - video capture support functions.
   3  *
   4  * Copyright 2014 Cisco Systems, Inc. and/or its affiliates. All rights reserved.
   5  *
   6  * This program is free software; you may redistribute it and/or modify
   7  * it under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation; version 2 of the License.
   9  *
  10  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  11  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  12  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  13  * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
  14  * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
  15  * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  16  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  17  * SOFTWARE.
  18  */
  19
  20 #include <linux/errno.h>
  21 #include <linux/kernel.h>
  22 #include <linux/sched.h>
  23 #include <linux/vmalloc.h>
  24 #include <linux/videodev2.h>
  25 #include <linux/v4l2-dv-timings.h>
  26 #include <media/v4l2-common.h>
  27 #include <media/v4l2-event.h>
  28 #include <media/v4l2-dv-timings.h>
  29
  30 #include "vivid-core.h"
  31 #include "vivid-vid-common.h"
  32 #include "vivid-kthread-cap.h"
  33 #include "vivid-vid-cap.h"
  34
  35 /* timeperframe: min/max and default */
  36 static const struct v4l2_fract
  37         tpf_min     = {.numerator = 1,          .denominator = FPS_MAX},
  38         tpf_max     = {.numerator = FPS_MAX,    .denominator = 1},
  39         tpf_default = {.numerator = 1,          .denominator = 30};
  40
  41 static const struct vivid_fmt formats_ovl[] = {
  42         {
  43                 .fourcc   = V4L2_PIX_FMT_RGB565, /* gggbbbbb rrrrrggg */
  44                 .vdownsampling = { 1 },
  45                 .bit_depth = { 16 },
  46                 .planes   = 1,
  47                 .buffers = 1,
  48         },
  49         {
  50                 .fourcc   = V4L2_PIX_FMT_XRGB555, /* gggbbbbb arrrrrgg */
  51                 .vdownsampling = { 1 },
  52                 .bit_depth = { 16 },
  53                 .planes   = 1,
  54                 .buffers = 1,
  55         },
  56         {
  57                 .fourcc   = V4L2_PIX_FMT_ARGB555, /* gggbbbbb arrrrrgg */
  58                 .vdownsampling = { 1 },
  59                 .bit_depth = { 16 },
  60                 .planes   = 1,
  61                 .buffers = 1,
  62         },
  63 };
  64
  65 /* The number of discrete webcam framesizes */
  66 #define VIVID_WEBCAM_SIZES 4
  67 /* The number of discrete webcam frameintervals */
  68 #define VIVID_WEBCAM_IVALS (VIVID_WEBCAM_SIZES * 2)
  69
  70 /* Sizes must be in increasing order */
  71 static const struct v4l2_frmsize_discrete webcam_sizes[VIVID_WEBCAM_SIZES] = {
  72         {  320, 180 },
  73         {  640, 360 },
  74         { 1280, 720 },
  75         { 1920, 1080 },
  76 };
  77
  78 /*
  79  * Intervals must be in increasing order and there must be twice as many
  80  * elements in this array as there are in webcam_sizes.
  81  */
  82 static const struct v4l2_fract webcam_intervals[VIVID_WEBCAM_IVALS] = {
  83         {  1, 2 },
  84         {  1, 5 },
  85         {  1, 10 },
  86         {  1, 15 },
  87         {  1, 25 },
  88         {  1, 30 },
  89         {  1, 50 },
  90         {  1, 60 },
  91 };
  92
  93 static const struct v4l2_discrete_probe webcam_probe = {
  94         webcam_sizes,
  95         VIVID_WEBCAM_SIZES
  96 };
  97
  98 static int vid_cap_queue_setup(struct vb2_queue *vq, const struct v4l2_format *fmt,
  99                        unsigned *nbuffers, unsigned *nplanes,
 100                        unsigned sizes[], void *alloc_ctxs[])
 101 {
 102         struct vivid_dev *dev = vb2_get_drv_priv(vq);
 103         unsigned buffers = tpg_g_buffers(&dev->tpg);
 104         unsigned h = dev->fmt_cap_rect.height;
 105         unsigned p;
 106
 107         if (dev->field_cap == V4L2_FIELD_ALTERNATE) {
 108                 /*
 109                  * You cannot use read() with FIELD_ALTERNATE since the field
 110                  * information (TOP/BOTTOM) cannot be passed back to the user.
 111                  */
 112                 if (vb2_fileio_is_active(vq))
 113                         return -EINVAL;
 114         }
 115
 116         if (dev->queue_setup_error) {
 117                 /*
 118                  * Error injection: test what happens if queue_setup() returns
 119                  * an error.
 120                  */
 121                 dev->queue_setup_error = false;
 122                 return -EINVAL;
 123         }
 124         if (fmt) {
 125                 const struct v4l2_pix_format_mplane *mp;
 126                 struct v4l2_format mp_fmt;
 127                 const struct vivid_fmt *vfmt;
 128
 129                 if (!V4L2_TYPE_IS_MULTIPLANAR(fmt->type)) {
 130                         fmt_sp2mp(fmt, &mp_fmt);
 131                         fmt = &mp_fmt;
 132                 }
 133                 mp = &fmt->fmt.pix_mp;
 134                 /*
 135                  * Check if the number of planes in the specified format match
 136                  * the number of buffers in the current format. You can't mix that.
 137                  */
 138                 if (mp->num_planes != buffers)
 139                         return -EINVAL;
 140                 vfmt = vivid_get_format(dev, mp->pixelformat);
 141                 for (p = 0; p < buffers; p++) {
 142                         sizes[p] = mp->plane_fmt[p].sizeimage;
 143                         if (sizes[p] < tpg_g_line_width(&dev->tpg, p) * h +
 144                                                         vfmt->data_offset[p])
 145                                 return -EINVAL;
 146                 }
 147         } else {
 148                 for (p = 0; p < buffers; p++)
 149                         sizes[p] = tpg_g_line_width(&dev->tpg, p) * h +
 150                                         dev->fmt_cap->data_offset[p];
 151         }
 152
 153         if (vq->num_buffers + *nbuffers < 2)
 154                 *nbuffers = 2 - vq->num_buffers;
 155
 156         *nplanes = buffers;
 157
 158         /*
 159          * videobuf2-vmalloc allocator is context-less so no need to set
 160          * alloc_ctxs array.
 161          */
 162
 163         dprintk(dev, 1, "%s: count=%d\n", __func__, *nbuffers);
 164         for (p = 0; p < buffers; p++)
 165                 dprintk(dev, 1, "%s: size[%u]=%u\n", __func__, p, sizes[p]);
 166
 167         return 0;
 168 }
 169
 170 static int vid_cap_buf_prepare(struct vb2_buffer *vb)
 171 {
 172         struct vivid_dev *dev = vb2_get_drv_priv(vb->vb2_queue);
 173         unsigned long size;
 174         unsigned buffers = tpg_g_buffers(&dev->tpg);
 175         unsigned p;
 176
 177         dprintk(dev, 1, "%s\n", __func__);
 178
 179         if (WARN_ON(NULL == dev->fmt_cap))
 180                 return -EINVAL;
 181
 182         if (dev->buf_prepare_error) {
 183                 /*
 184                  * Error injection: test what happens if buf_prepare() returns
 185                  * an error.
 186                  */
 187                 dev->buf_prepare_error = false;
 188                 return -EINVAL;
 189         }
 190         for (p = 0; p < buffers; p++) {
 191                 size = tpg_g_line_width(&dev->tpg, p) * dev->fmt_cap_rect.height +
 192                         dev->fmt_cap->data_offset[p];
 193
 194                 if (vb2_plane_size(vb, p) < size) {
 195                         dprintk(dev, 1, "%s data will not fit into plane %u (%lu < %lu)\n",
 196                                         __func__, p, vb2_plane_size(vb, p), size);
 197                         return -EINVAL;
 198                 }
 199
 200                 vb2_set_plane_payload(vb, p, size);
 201                 vb->v4l2_planes[p].data_offset = dev->fmt_cap->data_offset[p];
 202         }
 203
 204         return 0;
 205 }
 206
 207 static void vid_cap_buf_finish(struct vb2_buffer *vb)
 208 {
 209         struct vivid_dev *dev = vb2_get_drv_priv(vb->vb2_queue);
 210         struct v4l2_timecode *tc = &vb->v4l2_buf.timecode;
 211         unsigned fps = 25;
 212         unsigned seq = vb->v4l2_buf.sequence;
 213
 214         if (!vivid_is_sdtv_cap(dev))
 215                 return;
 216
 217         /*
 218          * Set the timecode. Rarely used, so it is interesting to
 219          * test this.
 220          */
 221         vb->v4l2_buf.flags |= V4L2_BUF_FLAG_TIMECODE;
 222         if (dev->std_cap & V4L2_STD_525_60)
 223                 fps = 30;
 224         tc->type = (fps == 30) ? V4L2_TC_TYPE_30FPS : V4L2_TC_TYPE_25FPS;
 225         tc->flags = 0;
 226         tc->frames = seq % fps;
 227         tc->seconds = (seq / fps) % 60;
 228         tc->minutes = (seq / (60 * fps)) % 60;
 229         tc->hours = (seq / (60 * 60 * fps)) % 24;
 230 }
 231
 232 static void vid_cap_buf_queue(struct vb2_buffer *vb)
 233 {
 234         struct vivid_dev *dev = vb2_get_drv_priv(vb->vb2_queue);
 235         struct vivid_buffer *buf = container_of(vb, struct vivid_buffer, vb);
 236
 237         dprintk(dev, 1, "%s\n", __func__);
 238
 239         spin_lock(&dev->slock);
 240         list_add_tail(&buf->list, &dev->vid_cap_active);
 241         spin_unlock(&dev->slock);
 242 }
 243
 244 static int vid_cap_start_streaming(struct vb2_queue *vq, unsigned count)
 245 {
 246         struct vivid_dev *dev = vb2_get_drv_priv(vq);
 247         unsigned i;
 248         int err;
 249
 250         if (vb2_is_streaming(&dev->vb_vid_out_q))
 251                 dev->can_loop_video = vivid_vid_can_loop(dev);
 252
 253         if (dev->kthread_vid_cap)
 254                 return 0;
 255
 256         dev->vid_cap_seq_count = 0;
 257         dprintk(dev, 1, "%s\n", __func__);
 258         for (i = 0; i < VIDEO_MAX_FRAME; i++)
 259                 dev->must_blank[i] = tpg_g_perc_fill(&dev->tpg) < 100;
 260         if (dev->start_streaming_error) {
 261                 dev->start_streaming_error = false;
 262                 err = -EINVAL;
 263         } else {
 264                 err = vivid_start_generating_vid_cap(dev, &dev->vid_cap_streaming);
 265         }
 266         if (err) {
 267                 struct vivid_buffer *buf, *tmp;
 268
 269                 list_for_each_entry_safe(buf, tmp, &dev->vid_cap_active, list) {
 270                         list_del(&buf->list);
 271                         vb2_buffer_done(&buf->vb, VB2_BUF_STATE_QUEUED);
 272                 }
 273         }
 274         return err;
 275 }
 276
 277 /* abort streaming and wait for last buffer */
 278 static void vid_cap_stop_streaming(struct vb2_queue *vq)
 279 {
 280         struct vivid_dev *dev = vb2_get_drv_priv(vq);
 281
 282         dprintk(dev, 1, "%s\n", __func__);
 283         vivid_stop_generating_vid_cap(dev, &dev->vid_cap_streaming);
 284         dev->can_loop_video = false;
 285 }
 286
 287 const struct vb2_ops vivid_vid_cap_qops = {
 288         .queue_setup            = vid_cap_queue_setup,
 289         .buf_prepare            = vid_cap_buf_prepare,
 290         .buf_finish             = vid_cap_buf_finish,
 291         .buf_queue              = vid_cap_buf_queue,
 292         .start_streaming        = vid_cap_start_streaming,
 293         .stop_streaming         = vid_cap_stop_streaming,
 294         .wait_prepare           = vb2_ops_wait_prepare,
 295         .wait_finish            = vb2_ops_wait_finish,
 296 };
 297
 298 /*
 299  * Determine the 'picture' quality based on the current TV frequency: either
 300  * COLOR for a good 'signal', GRAY (grayscale picture) for a slightly off
 301  * signal or NOISE for no signal.
 302  */
 303 void vivid_update_quality(struct vivid_dev *dev)
 304 {
 305         unsigned freq_modulus;
 306
 307         if (dev->loop_video && (vivid_is_svid_cap(dev) || vivid_is_hdmi_cap(dev))) {
 308                 /*
 309                  * The 'noise' will only be replaced by the actual video
 310                  * if the output video matches the input video settings.
 311                  */
 312                 tpg_s_quality(&dev->tpg, TPG_QUAL_NOISE, 0);
 313                 return;
 314         }
 315         if (vivid_is_hdmi_cap(dev) && VIVID_INVALID_SIGNAL(dev->dv_timings_signal_mode)) {
 316                 tpg_s_quality(&dev->tpg, TPG_QUAL_NOISE, 0);
 317                 return;
 318         }
 319         if (vivid_is_sdtv_cap(dev) && VIVID_INVALID_SIGNAL(dev->std_signal_mode)) {
 320                 tpg_s_quality(&dev->tpg, TPG_QUAL_NOISE, 0);
 321                 return;
 322         }
 323         if (!vivid_is_tv_cap(dev)) {
 324                 tpg_s_quality(&dev->tpg, TPG_QUAL_COLOR, 0);
 325                 return;
 326         }
 327
 328         /*
 329          * There is a fake channel every 6 MHz at 49.25, 55.25, etc.
 330          * From +/- 0.25 MHz around the channel there is color, and from
 331          * +/- 1 MHz there is grayscale (chroma is lost).
 332          * Everywhere else it is just noise.
 333          */
 334         freq_modulus = (dev->tv_freq - 676 /* (43.25-1) * 16 */) % (6 * 16);
 335         if (freq_modulus > 2 * 16) {
 336                 tpg_s_quality(&dev->tpg, TPG_QUAL_NOISE,
 337                         next_pseudo_random32(dev->tv_freq ^ 0x55) & 0x3f);
 338                 return;
 339         }
 340         if (freq_modulus < 12 /*0.75 * 16*/ || freq_modulus > 20 /*1.25 * 16*/)
 341                 tpg_s_quality(&dev->tpg, TPG_QUAL_GRAY, 0);
 342         else
 343                 tpg_s_quality(&dev->tpg, TPG_QUAL_COLOR, 0);
 344 }
 345
 346 /*
 347  * Get the current picture quality and the associated afc value.
 348  */
 349 static enum tpg_quality vivid_get_quality(struct vivid_dev *dev, s32 *afc)
 350 {
 351         unsigned freq_modulus;
 352
 353         if (afc)
 354                 *afc = 0;
 355         if (tpg_g_quality(&dev->tpg) == TPG_QUAL_COLOR ||
 356             tpg_g_quality(&dev->tpg) == TPG_QUAL_NOISE)
 357                 return tpg_g_quality(&dev->tpg);
 358
 359         /*
 360          * There is a fake channel every 6 MHz at 49.25, 55.25, etc.
 361          * From +/- 0.25 MHz around the channel there is color, and from
 362          * +/- 1 MHz there is grayscale (chroma is lost).
 363          * Everywhere else it is just gray.
 364          */
 365         freq_modulus = (dev->tv_freq - 676 /* (43.25-1) * 16 */) % (6 * 16);
 366         if (afc)
 367                 *afc = freq_modulus - 1 * 16;
 368         return TPG_QUAL_GRAY;
 369 }
 370
 371 enum tpg_video_aspect vivid_get_video_aspect(const struct vivid_dev *dev)
 372 {
 373         if (vivid_is_sdtv_cap(dev))
 374                 return dev->std_aspect_ratio;
 375
 376         if (vivid_is_hdmi_cap(dev))
 377                 return dev->dv_timings_aspect_ratio;
 378
 379         return TPG_VIDEO_ASPECT_IMAGE;
 380 }
 381
 382 static enum tpg_pixel_aspect vivid_get_pixel_aspect(const struct vivid_dev *dev)
 383 {
 384         if (vivid_is_sdtv_cap(dev))
 385                 return (dev->std_cap & V4L2_STD_525_60) ?
 386                         TPG_PIXEL_ASPECT_NTSC : TPG_PIXEL_ASPECT_PAL;
 387
 388         if (vivid_is_hdmi_cap(dev) &&
 389             dev->src_rect.width == 720 && dev->src_rect.height <= 576)
 390                 return dev->src_rect.height == 480 ?
 391                         TPG_PIXEL_ASPECT_NTSC : TPG_PIXEL_ASPECT_PAL;
 392
 393         return TPG_PIXEL_ASPECT_SQUARE;
 394 }
 395
 396 /*
 397  * Called whenever the format has to be reset which can occur when
 398  * changing inputs, standard, timings, etc.
 399  */
 400 void vivid_update_format_cap(struct vivid_dev *dev, bool keep_controls)
 401 {
 402         struct v4l2_bt_timings *bt = &dev->dv_timings_cap.bt;
 403         unsigned size;
 404
 405         switch (dev->input_type[dev->input]) {
 406         case WEBCAM:
 407         default:
 408                 dev->src_rect.width = webcam_sizes[dev->webcam_size_idx].width;
 409                 dev->src_rect.height = webcam_sizes[dev->webcam_size_idx].height;
 410                 dev->timeperframe_vid_cap = webcam_intervals[dev->webcam_ival_idx];
 411                 dev->field_cap = V4L2_FIELD_NONE;
 412                 tpg_s_rgb_range(&dev->tpg, V4L2_DV_RGB_RANGE_AUTO);
 413                 break;
 414         case TV:
 415         case SVID:
 416                 dev->field_cap = dev->tv_field_cap;
 417                 dev->src_rect.width = 720;
 418                 if (dev->std_cap & V4L2_STD_525_60) {
 419                         dev->src_rect.height = 480;
 420                         dev->timeperframe_vid_cap = (struct v4l2_fract) { 1001, 30000 };
 421                         dev->service_set_cap = V4L2_SLICED_CAPTION_525;
 422                 } else {
 423                         dev->src_rect.height = 576;
 424                         dev->timeperframe_vid_cap = (struct v4l2_fract) { 1000, 25000 };
 425                         dev->service_set_cap = V4L2_SLICED_WSS_625 | V4L2_SLICED_TELETEXT_B;
 426                 }
 427                 tpg_s_rgb_range(&dev->tpg, V4L2_DV_RGB_RANGE_AUTO);
 428                 break;
 429         case HDMI:
 430                 dev->src_rect.width = bt->width;
 431                 dev->src_rect.height = bt->height;
 432                 size = V4L2_DV_BT_FRAME_WIDTH(bt) * V4L2_DV_BT_FRAME_HEIGHT(bt);
 433                 dev->timeperframe_vid_cap = (struct v4l2_fract) {
 434                         size / 100, (u32)bt->pixelclock / 100
 435                 };
 436                 if (bt->interlaced)
 437                         dev->field_cap = V4L2_FIELD_ALTERNATE;
 438                 else
 439                         dev->field_cap = V4L2_FIELD_NONE;
 440
 441                 /*
 442                  * We can be called from within s_ctrl, in that case we can't
 443                  * set/get controls. Luckily we don't need to in that case.
 444                  */
 445                 if (keep_controls || !dev->colorspace)
 446                         break;
 447                 if (bt->flags & V4L2_DV_FL_IS_CE_VIDEO) {
 448                         if (bt->width == 720 && bt->height <= 576)
 449                                 v4l2_ctrl_s_ctrl(dev->colorspace, VIVID_CS_170M);
 450                         else
 451                                 v4l2_ctrl_s_ctrl(dev->colorspace, VIVID_CS_709);
 452                         v4l2_ctrl_s_ctrl(dev->real_rgb_range_cap, 1);
 453                 } else {
 454                         v4l2_ctrl_s_ctrl(dev->colorspace, VIVID_CS_SRGB);
 455                         v4l2_ctrl_s_ctrl(dev->real_rgb_range_cap, 0);
 456                 }
 457                 tpg_s_rgb_range(&dev->tpg, v4l2_ctrl_g_ctrl(dev->rgb_range_cap));
 458                 break;
 459         }
 460         vivid_update_quality(dev);
 461         tpg_reset_source(&dev->tpg, dev->src_rect.width, dev->src_rect.height, dev->field_cap);
 462         dev->crop_cap = dev->src_rect;
 463         dev->crop_bounds_cap = dev->src_rect;
 464         dev->compose_cap = dev->crop_cap;
 465         if (V4L2_FIELD_HAS_T_OR_B(dev->field_cap))
 466                 dev->compose_cap.height /= 2;
 467         dev->fmt_cap_rect = dev->compose_cap;
 468         tpg_s_video_aspect(&dev->tpg, vivid_get_video_aspect(dev));
 469         tpg_s_pixel_aspect(&dev->tpg, vivid_get_pixel_aspect(dev));
 470         tpg_update_mv_step(&dev->tpg);
 471 }
 472
 473 /* Map the field to something that is valid for the current input */
 474 static enum v4l2_field vivid_field_cap(struct vivid_dev *dev, enum v4l2_field field)
 475 {
 476         if (vivid_is_sdtv_cap(dev)) {
 477                 switch (field) {
 478                 case V4L2_FIELD_INTERLACED_TB:
 479                 case V4L2_FIELD_INTERLACED_BT:
 480                 case V4L2_FIELD_SEQ_TB:
 481                 case V4L2_FIELD_SEQ_BT:
 482                 case V4L2_FIELD_TOP:
 483                 case V4L2_FIELD_BOTTOM:
 484                 case V4L2_FIELD_ALTERNATE:
 485                         return field;
 486                 case V4L2_FIELD_INTERLACED:
 487                 default:
 488                         return V4L2_FIELD_INTERLACED;
 489                 }
 490         }
 491         if (vivid_is_hdmi_cap(dev))
 492                 return dev->dv_timings_cap.bt.interlaced ? V4L2_FIELD_ALTERNATE :
 493                                                        V4L2_FIELD_NONE;
 494         return V4L2_FIELD_NONE;
 495 }
 496
 497 static unsigned vivid_colorspace_cap(struct vivid_dev *dev)
 498 {
 499         if (!dev->loop_video || vivid_is_webcam(dev) || vivid_is_tv_cap(dev))
 500                 return tpg_g_colorspace(&dev->tpg);
 501         return dev->colorspace_out;
 502 }
 503
 504 static unsigned vivid_xfer_func_cap(struct vivid_dev *dev)
 505 {
 506         if (!dev->loop_video || vivid_is_webcam(dev) || vivid_is_tv_cap(dev))
 507                 return tpg_g_xfer_func(&dev->tpg);
 508         return dev->xfer_func_out;
 509 }
 510
 511 static unsigned vivid_ycbcr_enc_cap(struct vivid_dev *dev)
 512 {
 513         if (!dev->loop_video || vivid_is_webcam(dev) || vivid_is_tv_cap(dev))
 514                 return tpg_g_ycbcr_enc(&dev->tpg);
 515         return dev->ycbcr_enc_out;
 516 }
 517
 518 static unsigned vivid_quantization_cap(struct vivid_dev *dev)
 519 {
 520         if (!dev->loop_video || vivid_is_webcam(dev) || vivid_is_tv_cap(dev))
 521                 return tpg_g_quantization(&dev->tpg);
 522         return dev->quantization_out;
 523 }
 524
 525 int vivid_g_fmt_vid_cap(struct file *file, void *priv,
 526                                         struct v4l2_format *f)
 527 {
 528         struct vivid_dev *dev = video_drvdata(file);
 529         struct v4l2_pix_format_mplane *mp = &f->fmt.pix_mp;
 530         unsigned p;
 531
 532         mp->width        = dev->fmt_cap_rect.width;
 533         mp->height       = dev->fmt_cap_rect.height;
 534         mp->field        = dev->field_cap;
 535         mp->pixelformat  = dev->fmt_cap->fourcc;
 536         mp->colorspace   = vivid_colorspace_cap(dev);
 537         mp->xfer_func    = vivid_xfer_func_cap(dev);
 538         mp->ycbcr_enc    = vivid_ycbcr_enc_cap(dev);
 539         mp->quantization = vivid_quantization_cap(dev);
 540         mp->num_planes = dev->fmt_cap->buffers;
 541         for (p = 0; p < mp->num_planes; p++) {
 542                 mp->plane_fmt[p].bytesperline = tpg_g_bytesperline(&dev->tpg, p);
 543                 mp->plane_fmt[p].sizeimage =
 544                         tpg_g_line_width(&dev->tpg, p) * mp->height +
 545                         dev->fmt_cap->data_offset[p];
 546         }
 547         return 0;
 548 }
 549
 550 int vivid_try_fmt_vid_cap(struct file *file, void *priv,
 551                         struct v4l2_format *f)
 552 {
 553         struct v4l2_pix_format_mplane *mp = &f->fmt.pix_mp;
 554         struct v4l2_plane_pix_format *pfmt = mp->plane_fmt;
 555         struct vivid_dev *dev = video_drvdata(file);
 556         const struct vivid_fmt *fmt;
 557         unsigned bytesperline, max_bpl;
 558         unsigned factor = 1;
 559         unsigned w, h;
 560         unsigned p;
 561
 562         fmt = vivid_get_format(dev, mp->pixelformat);
 563         if (!fmt) {
 564                 dprintk(dev, 1, "Fourcc format (0x%08x) unknown.\n",
 565                         mp->pixelformat);
 566                 mp->pixelformat = V4L2_PIX_FMT_YUYV;
 567                 fmt = vivid_get_format(dev, mp->pixelformat);
 568         }
 569
 570         mp->field = vivid_field_cap(dev, mp->field);
 571         if (vivid_is_webcam(dev)) {
 572                 const struct v4l2_frmsize_discrete *sz =
 573                         v4l2_find_nearest_format(&webcam_probe, mp->width, mp->height);
 574
 575                 w = sz->width;
 576                 h = sz->height;
 577         } else if (vivid_is_sdtv_cap(dev)) {
 578                 w = 720;
 579                 h = (dev->std_cap & V4L2_STD_525_60) ? 480 : 576;
 580         } else {
 581                 w = dev->src_rect.width;
 582                 h = dev->src_rect.height;
 583         }
 584         if (V4L2_FIELD_HAS_T_OR_B(mp->field))
 585                 factor = 2;
 586         if (vivid_is_webcam(dev) ||
 587             (!dev->has_scaler_cap && !dev->has_crop_cap && !dev->has_compose_cap)) {
 588                 mp->width = w;
 589                 mp->height = h / factor;
 590         } else {
 591                 struct v4l2_rect r = { 0, 0, mp->width, mp->height * factor };
 592
 593                 rect_set_min_size(&r, &vivid_min_rect);
 594                 rect_set_max_size(&r, &vivid_max_rect);
 595                 if (dev->has_scaler_cap && !dev->has_compose_cap) {
 596                         struct v4l2_rect max_r = { 0, 0, MAX_ZOOM * w, MAX_ZOOM * h };
 597
 598                         rect_set_max_size(&r, &max_r);
 599                 } else if (!dev->has_scaler_cap && dev->has_crop_cap && !dev->has_compose_cap) {
 600                         rect_set_max_size(&r, &dev->src_rect);
 601                 } else if (!dev->has_scaler_cap && !dev->has_crop_cap) {
 602                         rect_set_min_size(&r, &dev->src_rect);
 603                 }
 604                 mp->width = r.width;
 605                 mp->height = r.height / factor;
 606         }
 607
 608         /* This driver supports custom bytesperline values */
 609
 610         mp->num_planes = fmt->buffers;
 611         for (p = 0; p < mp->num_planes; p++) {
 612                 /* Calculate the minimum supported bytesperline value */
 613                 bytesperline = (mp->width * fmt->bit_depth[p]) >> 3;
 614                 /* Calculate the maximum supported bytesperline value */
 615                 max_bpl = (MAX_ZOOM * MAX_WIDTH * fmt->bit_depth[p]) >> 3;
 616
 617                 if (pfmt[p].bytesperline > max_bpl)
 618                         pfmt[p].bytesperline = max_bpl;
 619                 if (pfmt[p].bytesperline < bytesperline)
 620                         pfmt[p].bytesperline = bytesperline;
 621                 pfmt[p].sizeimage = tpg_calc_line_width(&dev->tpg, p, pfmt[p].bytesperline) *
 622                         mp->height + fmt->data_offset[p];
 623                 memset(pfmt[p].reserved, 0, sizeof(pfmt[p].reserved));
 624         }
 625         mp->colorspace = vivid_colorspace_cap(dev);
 626         mp->ycbcr_enc = vivid_ycbcr_enc_cap(dev);
 627         mp->xfer_func = vivid_xfer_func_cap(dev);
 628         mp->quantization = vivid_quantization_cap(dev);
 629         memset(mp->reserved, 0, sizeof(mp->reserved));
 630         return 0;
 631 }
 632
 633 int vivid_s_fmt_vid_cap(struct file *file, void *priv,
 634                                         struct v4l2_format *f)
 635 {
 636         struct v4l2_pix_format_mplane *mp = &f->fmt.pix_mp;
 637         struct vivid_dev *dev = video_drvdata(file);
 638         struct v4l2_rect *crop = &dev->crop_cap;
 639         struct v4l2_rect *compose = &dev->compose_cap;
 640         struct vb2_queue *q = &dev->vb_vid_cap_q;
 641         int ret = vivid_try_fmt_vid_cap(file, priv, f);
 642         unsigned factor = 1;
 643         unsigned p;
 644         unsigned i;
 645
 646         if (ret < 0)
 647                 return ret;
 648
 649         if (vb2_is_busy(q)) {
 650                 dprintk(dev, 1, "%s device busy\n", __func__);
 651                 return -EBUSY;
 652         }
 653
 654         if (dev->overlay_cap_owner && dev->fb_cap.fmt.pixelformat != mp->pixelformat) {
 655                 dprintk(dev, 1, "overlay is active, can't change pixelformat\n");
 656                 return -EBUSY;
 657         }
 658
 659         dev->fmt_cap = vivid_get_format(dev, mp->pixelformat);
 660         if (V4L2_FIELD_HAS_T_OR_B(mp->field))
 661                 factor = 2;
 662
 663         /* Note: the webcam input doesn't support scaling, cropping or composing */
 664
 665         if (!vivid_is_webcam(dev) &&
 666             (dev->has_scaler_cap || dev->has_crop_cap || dev->has_compose_cap)) {
 667                 struct v4l2_rect r = { 0, 0, mp->width, mp->height };
 668
 669                 if (dev->has_scaler_cap) {
 670                         if (dev->has_compose_cap)
 671                                 rect_map_inside(compose, &r);
 672                         else
 673                                 *compose = r;
 674                         if (dev->has_crop_cap && !dev->has_compose_cap) {
 675                                 struct v4l2_rect min_r = {
 676                                         0, 0,
 677                                         r.width / MAX_ZOOM,
 678                                         factor * r.height / MAX_ZOOM
 679                                 };
 680                                 struct v4l2_rect max_r = {
 681                                         0, 0,
 682                                         r.width * MAX_ZOOM,
 683                                         factor * r.height * MAX_ZOOM
 684                                 };
 685
 686                                 rect_set_min_size(crop, &min_r);
 687                                 rect_set_max_size(crop, &max_r);
 688                                 rect_map_inside(crop, &dev->crop_bounds_cap);
 689                         } else if (dev->has_crop_cap) {
 690                                 struct v4l2_rect min_r = {
 691                                         0, 0,
 692                                         compose->width / MAX_ZOOM,
 693                                         factor * compose->height / MAX_ZOOM
 694                                 };
 695                                 struct v4l2_rect max_r = {
 696                                         0, 0,
 697                                         compose->width * MAX_ZOOM,
 698                                         factor * compose->height * MAX_ZOOM
 699                                 };
 700
 701                                 rect_set_min_size(crop, &min_r);
 702                                 rect_set_max_size(crop, &max_r);
 703                                 rect_map_inside(crop, &dev->crop_bounds_cap);
 704                         }
 705                 } else if (dev->has_crop_cap && !dev->has_compose_cap) {
 706                         r.height *= factor;
 707                         rect_set_size_to(crop, &r);
 708                         rect_map_inside(crop, &dev->crop_bounds_cap);
 709                         r = *crop;
 710                         r.height /= factor;
 711                         rect_set_size_to(compose, &r);
 712                 } else if (!dev->has_crop_cap) {
 713                         rect_map_inside(compose, &r);
 714                 } else {
 715                         r.height *= factor;
 716                         rect_set_max_size(crop, &r);
 717                         rect_map_inside(crop, &dev->crop_bounds_cap);
 718                         compose->top *= factor;
 719                         compose->height *= factor;
 720                         rect_set_size_to(compose, crop);
 721                         rect_map_inside(compose, &r);
 722                         compose->top /= factor;
 723                         compose->height /= factor;
 724                 }
 725         } else if (vivid_is_webcam(dev)) {
 726                 /* Guaranteed to be a match */
 727                 for (i = 0; i < ARRAY_SIZE(webcam_sizes); i++)
 728                         if (webcam_sizes[i].width == mp->width &&
 729                                         webcam_sizes[i].height == mp->height)
 730                                 break;
 731                 dev->webcam_size_idx = i;
 732                 if (dev->webcam_ival_idx >= 2 * (VIVID_WEBCAM_SIZES - i))
 733                         dev->webcam_ival_idx = 2 * (VIVID_WEBCAM_SIZES - i) - 1;
 734                 vivid_update_format_cap(dev, false);
 735         } else {
 736                 struct v4l2_rect r = { 0, 0, mp->width, mp->height };
 737
 738                 rect_set_size_to(compose, &r);
 739                 r.height *= factor;
 740                 rect_set_size_to(crop, &r);
 741         }
 742
 743         dev->fmt_cap_rect.width = mp->width;
 744         dev->fmt_cap_rect.height = mp->height;
 745         tpg_s_buf_height(&dev->tpg, mp->height);
 746         tpg_s_fourcc(&dev->tpg, dev->fmt_cap->fourcc);
 747         for (p = 0; p < tpg_g_buffers(&dev->tpg); p++)
 748                 tpg_s_bytesperline(&dev->tpg, p, mp->plane_fmt[p].bytesperline);
 749         dev->field_cap = mp->field;
 750         if (dev->field_cap == V4L2_FIELD_ALTERNATE)
 751                 tpg_s_field(&dev->tpg, V4L2_FIELD_TOP, true);
 752         else
 753                 tpg_s_field(&dev->tpg, dev->field_cap, false);
 754         tpg_s_crop_compose(&dev->tpg, &dev->crop_cap, &dev->compose_cap);
 755         if (vivid_is_sdtv_cap(dev))
 756                 dev->tv_field_cap = mp->field;
 757         tpg_update_mv_step(&dev->tpg);
 758         return 0;
 759 }
 760
 761 int vidioc_g_fmt_vid_cap_mplane(struct file *file, void *priv,
 762                                         struct v4l2_format *f)
 763 {
 764         struct vivid_dev *dev = video_drvdata(file);
 765
 766         if (!dev->multiplanar)
 767                 return -ENOTTY;
 768         return vivid_g_fmt_vid_cap(file, priv, f);
 769 }
 770
 771 int vidioc_try_fmt_vid_cap_mplane(struct file *file, void *priv,
 772                         struct v4l2_format *f)
 773 {
 774         struct vivid_dev *dev = video_drvdata(file);
 775
 776         if (!dev->multiplanar)
 777                 return -ENOTTY;
 778         return vivid_try_fmt_vid_cap(file, priv, f);
 779 }
 780
 781 int vidioc_s_fmt_vid_cap_mplane(struct file *file, void *priv,
 782                         struct v4l2_format *f)
 783 {
 784         struct vivid_dev *dev = video_drvdata(file);
 785
 786         if (!dev->multiplanar)
 787                 return -ENOTTY;
 788         return vivid_s_fmt_vid_cap(file, priv, f);
 789 }
 790
 791 int vidioc_g_fmt_vid_cap(struct file *file, void *priv,
 792                                         struct v4l2_format *f)
 793 {
 794         struct vivid_dev *dev = video_drvdata(file);
 795
 796         if (dev->multiplanar)
 797                 return -ENOTTY;
 798         return fmt_sp2mp_func(file, priv, f, vivid_g_fmt_vid_cap);
 799 }
 800
 801 int vidioc_try_fmt_vid_cap(struct file *file, void *priv,
 802                         struct v4l2_format *f)
 803 {
 804         struct vivid_dev *dev = video_drvdata(file);
 805
 806         if (dev->multiplanar)
 807                 return -ENOTTY;
 808         return fmt_sp2mp_func(file, priv, f, vivid_try_fmt_vid_cap);
 809 }
 810
 811 int vidioc_s_fmt_vid_cap(struct file *file, void *priv,
 812                         struct v4l2_format *f)
 813 {
 814         struct vivid_dev *dev = video_drvdata(file);
 815
 816         if (dev->multiplanar)
 817                 return -ENOTTY;
 818         return fmt_sp2mp_func(file, priv, f, vivid_s_fmt_vid_cap);
 819 }
 820
 821 int vivid_vid_cap_g_selection(struct file *file, void *priv,
 822                               struct v4l2_selection *sel)
 823 {
 824         struct vivid_dev *dev = video_drvdata(file);
 825
 826         if (!dev->has_crop_cap && !dev->has_compose_cap)
 827                 return -ENOTTY;
 828         if (sel->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
 829                 return -EINVAL;
 830         if (vivid_is_webcam(dev))
 831                 return -EINVAL;
 832
 833         sel->r.left = sel->r.top = 0;
 834         switch (sel->target) {
 835         case V4L2_SEL_TGT_CROP:
 836                 if (!dev->has_crop_cap)
 837                         return -EINVAL;
 838                 sel->r = dev->crop_cap;
 839                 break;
 840         case V4L2_SEL_TGT_CROP_DEFAULT:
 841         case V4L2_SEL_TGT_CROP_BOUNDS:
 842                 if (!dev->has_crop_cap)
 843                         return -EINVAL;
 844                 sel->r = dev->src_rect;
 845                 break;
 846         case V4L2_SEL_TGT_COMPOSE_BOUNDS:
 847                 if (!dev->has_compose_cap)
 848                         return -EINVAL;
 849                 sel->r = vivid_max_rect;
 850                 break;
 851         case V4L2_SEL_TGT_COMPOSE:
 852                 if (!dev->has_compose_cap)
 853                         return -EINVAL;
 854                 sel->r = dev->compose_cap;
 855                 break;
 856         case V4L2_SEL_TGT_COMPOSE_DEFAULT:
 857                 if (!dev->has_compose_cap)
 858                         return -EINVAL;
 859                 sel->r = dev->fmt_cap_rect;
 860                 break;
 861         default:
 862                 return -EINVAL;
 863         }
 864         return 0;
 865 }
 866
 867 int vivid_vid_cap_s_selection(struct file *file, void *fh, struct v4l2_selection *s)
 868 {
 869         struct vivid_dev *dev = video_drvdata(file);
 870         struct v4l2_rect *crop = &dev->crop_cap;
 871         struct v4l2_rect *compose = &dev->compose_cap;
 872         unsigned factor = V4L2_FIELD_HAS_T_OR_B(dev->field_cap) ? 2 : 1;
 873         int ret;
 874
 875         if (!dev->has_crop_cap && !dev->has_compose_cap)
 876                 return -ENOTTY;
 877         if (s->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
 878                 return -EINVAL;
 879         if (vivid_is_webcam(dev))
 880                 return -EINVAL;
 881
 882         switch (s->target) {
 883         case V4L2_SEL_TGT_CROP:
 884                 if (!dev->has_crop_cap)
 885                         return -EINVAL;
 886                 ret = vivid_vid_adjust_sel(s->flags, &s->r);
 887                 if (ret)
 888                         return ret;
 889                 rect_set_min_size(&s->r, &vivid_min_rect);
 890                 rect_set_max_size(&s->r, &dev->src_rect);
 891                 rect_map_inside(&s->r, &dev->crop_bounds_cap);
 892                 s->r.top /= factor;
 893                 s->r.height /= factor;
 894                 if (dev->has_scaler_cap) {
 895                         struct v4l2_rect fmt = dev->fmt_cap_rect;
 896                         struct v4l2_rect max_rect = {
 897                                 0, 0,
 898                                 s->r.width * MAX_ZOOM,
 899                                 s->r.height * MAX_ZOOM
 900                         };
 901                         struct v4l2_rect min_rect = {
 902                                 0, 0,
 903                                 s->r.width / MAX_ZOOM,
 904                                 s->r.height / MAX_ZOOM
 905                         };
 906
 907                         rect_set_min_size(&fmt, &min_rect);
 908                         if (!dev->has_compose_cap)
 909                                 rect_set_max_size(&fmt, &max_rect);
 910                         if (!rect_same_size(&dev->fmt_cap_rect, &fmt) &&
 911                             vb2_is_busy(&dev->vb_vid_cap_q))
 912                                 return -EBUSY;
 913                         if (dev->has_compose_cap) {
 914                                 rect_set_min_size(compose, &min_rect);
 915                                 rect_set_max_size(compose, &max_rect);
 916                         }
 917                         dev->fmt_cap_rect = fmt;
 918                         tpg_s_buf_height(&dev->tpg, fmt.height);
 919                 } else if (dev->has_compose_cap) {
 920                         struct v4l2_rect fmt = dev->fmt_cap_rect;
 921
 922                         rect_set_min_size(&fmt, &s->r);
 923                         if (!rect_same_size(&dev->fmt_cap_rect, &fmt) &&
 924                             vb2_is_busy(&dev->vb_vid_cap_q))
 925                                 return -EBUSY;
 926                         dev->fmt_cap_rect = fmt;
 927                         tpg_s_buf_height(&dev->tpg, fmt.height);
 928                         rect_set_size_to(compose, &s->r);
 929                         rect_map_inside(compose, &dev->fmt_cap_rect);
 930                 } else {
 931                         if (!rect_same_size(&s->r, &dev->fmt_cap_rect) &&
 932                             vb2_is_busy(&dev->vb_vid_cap_q))
 933                                 return -EBUSY;
 934                         rect_set_size_to(&dev->fmt_cap_rect, &s->r);
 935                         rect_set_size_to(compose, &s->r);
 936                         rect_map_inside(compose, &dev->fmt_cap_rect);
 937                         tpg_s_buf_height(&dev->tpg, dev->fmt_cap_rect.height);
 938                 }
 939                 s->r.top *= factor;
 940                 s->r.height *= factor;
 941                 *crop = s->r;
 942                 break;
 943         case V4L2_SEL_TGT_COMPOSE:
 944                 if (!dev->has_compose_cap)
 945                         return -EINVAL;
 946                 ret = vivid_vid_adjust_sel(s->flags, &s->r);
 947                 if (ret)
 948                         return ret;
 949                 rect_set_min_size(&s->r, &vivid_min_rect);
 950                 rect_set_max_size(&s->r, &dev->fmt_cap_rect);
 951                 if (dev->has_scaler_cap) {
 952                         struct v4l2_rect max_rect = {
 953                                 0, 0,
 954                                 dev->src_rect.width * MAX_ZOOM,
 955                                 (dev->src_rect.height / factor) * MAX_ZOOM
 956                         };
 957
 958                         rect_set_max_size(&s->r, &max_rect);
 959                         if (dev->has_crop_cap) {
 960                                 struct v4l2_rect min_rect = {
 961                                         0, 0,
 962                                         s->r.width / MAX_ZOOM,
 963                                         (s->r.height * factor) / MAX_ZOOM
 964                                 };
 965                                 struct v4l2_rect max_rect = {
 966                                         0, 0,
 967                                         s->r.width * MAX_ZOOM,
 968                                         (s->r.height * factor) * MAX_ZOOM
 969                                 };
 970
 971                                 rect_set_min_size(crop, &min_rect);
 972                                 rect_set_max_size(crop, &max_rect);
 973                                 rect_map_inside(crop, &dev->crop_bounds_cap);
 974                         }
 975                 } else if (dev->has_crop_cap) {
 976                         s->r.top *= factor;
 977                         s->r.height *= factor;
 978                         rect_set_max_size(&s->r, &dev->src_rect);
 979                         rect_set_size_to(crop, &s->r);
 980                         rect_map_inside(crop, &dev->crop_bounds_cap);
 981                         s->r.top /= factor;
 982                         s->r.height /= factor;
 983                 } else {
 984                         rect_set_size_to(&s->r, &dev->src_rect);
 985                         s->r.height /= factor;
 986                 }
 987                 rect_map_inside(&s->r, &dev->fmt_cap_rect);
 988                 if (dev->bitmap_cap && (compose->width != s->r.width ||
 989                                         compose->height != s->r.height)) {
 990                         kfree(dev->bitmap_cap);
 991                         dev->bitmap_cap = NULL;
 992                 }
 993                 *compose = s->r;
 994                 break;
 995         default:
 996                 return -EINVAL;
 997         }
 998
 999         tpg_s_crop_compose(&dev->tpg, crop, compose);
1000         return 0;
1001 }
1002
1003 int vivid_vid_cap_cropcap(struct file *file, void *priv,
1004                               struct v4l2_cropcap *cap)
1005 {
1006         struct vivid_dev *dev = video_drvdata(file);
1007
1008         if (cap->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
1009                 return -EINVAL;
1010
1011         switch (vivid_get_pixel_aspect(dev)) {
1012         case TPG_PIXEL_ASPECT_NTSC:
1013                 cap->pixelaspect.numerator = 11;
1014                 cap->pixelaspect.denominator = 10;
1015                 break;
1016         case TPG_PIXEL_ASPECT_PAL:
1017                 cap->pixelaspect.numerator = 54;
1018                 cap->pixelaspect.denominator = 59;
1019                 break;
1020         case TPG_PIXEL_ASPECT_SQUARE:
1021                 cap->pixelaspect.numerator = 1;
1022                 cap->pixelaspect.denominator = 1;
1023                 break;
1024         }
1025         return 0;
1026 }
1027
1028 int vidioc_enum_fmt_vid_overlay(struct file *file, void  *priv,
1029                                         struct v4l2_fmtdesc *f)
1030 {
1031         struct vivid_dev *dev = video_drvdata(file);
1032         const struct vivid_fmt *fmt;
1033
1034         if (dev->multiplanar)
1035                 return -ENOTTY;
1036
1037         if (f->index >= ARRAY_SIZE(formats_ovl))
1038                 return -EINVAL;
1039
1040         fmt = &formats_ovl[f->index];
1041
1042         f->pixelformat = fmt->fourcc;
1043         return 0;
1044 }
1045
1046 int vidioc_g_fmt_vid_overlay(struct file *file, void *priv,
1047                                         struct v4l2_format *f)
1048 {
1049         struct vivid_dev *dev = video_drvdata(file);
1050         const struct v4l2_rect *compose = &dev->compose_cap;
1051         struct v4l2_window *win = &f->fmt.win;
1052         unsigned clipcount = win->clipcount;
1053
1054         if (dev->multiplanar)
1055                 return -ENOTTY;
1056
1057         win->w.top = dev->overlay_cap_top;
1058         win->w.left = dev->overlay_cap_left;
1059         win->w.width = compose->width;
1060         win->w.height = compose->height;
1061         win->field = dev->overlay_cap_field;
1062         win->clipcount = dev->clipcount_cap;
1063         if (clipcount > dev->clipcount_cap)
1064                 clipcount = dev->clipcount_cap;
1065         if (dev->bitmap_cap == NULL)
1066                 win->bitmap = NULL;
1067         else if (win->bitmap) {
1068                 if (copy_to_user(win->bitmap, dev->bitmap_cap,
1069                     ((compose->width + 7) / 8) * compose->height))
1070                         return -EFAULT;
1071         }
1072         if (clipcount && win->clips) {
1073                 if (copy_to_user(win->clips, dev->clips_cap,
1074                                  clipcount * sizeof(dev->clips_cap[0])))
1075                         return -EFAULT;
1076         }
1077         return 0;
1078 }
1079
1080 int vidioc_try_fmt_vid_overlay(struct file *file, void *priv,
1081                                         struct v4l2_format *f)
1082 {
1083         struct vivid_dev *dev = video_drvdata(file);
1084         const struct v4l2_rect *compose = &dev->compose_cap;
1085         struct v4l2_window *win = &f->fmt.win;
1086         int i, j;
1087
1088         if (dev->multiplanar)
1089                 return -ENOTTY;
1090
1091         win->w.left = clamp_t(int, win->w.left,
1092                               -dev->fb_cap.fmt.width, dev->fb_cap.fmt.width);
1093         win->w.top = clamp_t(int, win->w.top,
1094                              -dev->fb_cap.fmt.height, dev->fb_cap.fmt.height);
1095         win->w.width = compose->width;
1096         win->w.height = compose->height;
1097         if (win->field != V4L2_FIELD_BOTTOM && win->field != V4L2_FIELD_TOP)
1098                 win->field = V4L2_FIELD_ANY;
1099         win->chromakey = 0;
1100         win->global_alpha = 0;
1101         if (win->clipcount && !win->clips)
1102                 win->clipcount = 0;
1103         if (win->clipcount > MAX_CLIPS)
1104                 win->clipcount = MAX_CLIPS;
1105         if (win->clipcount) {
1106                 if (copy_from_user(dev->try_clips_cap, win->clips,
1107                                    win->clipcount * sizeof(dev->clips_cap[0])))
1108                         return -EFAULT;
1109                 for (i = 0; i < win->clipcount; i++) {
1110                         struct v4l2_rect *r = &dev->try_clips_cap[i].c;
1111
1112                         r->top = clamp_t(s32, r->top, 0, dev->fb_cap.fmt.height - 1);
1113                         r->height = clamp_t(s32, r->height, 1, dev->fb_cap.fmt.height - r->top);
1114                         r->left = clamp_t(u32, r->left, 0, dev->fb_cap.fmt.width - 1);
1115                         r->width = clamp_t(u32, r->width, 1, dev->fb_cap.fmt.width - r->left);
1116                 }
1117                 /*
1118                  * Yeah, so sue me, it's an O(n^2) algorithm. But n is a small
1119                  * number and it's typically a one-time deal.
1120                  */
1121                 for (i = 0; i < win->clipcount - 1; i++) {
1122                         struct v4l2_rect *r1 = &dev->try_clips_cap[i].c;
1123
1124                         for (j = i + 1; j < win->clipcount; j++) {
1125                                 struct v4l2_rect *r2 = &dev->try_clips_cap[j].c;
1126
1127                                 if (rect_overlap(r1, r2))
1128                                         return -EINVAL;
1129                         }
1130                 }
1131                 if (copy_to_user(win->clips, dev->try_clips_cap,
1132                                  win->clipcount * sizeof(dev->clips_cap[0])))
1133                         return -EFAULT;
1134         }
1135         return 0;
1136 }
1137
1138 int vidioc_s_fmt_vid_overlay(struct file *file, void *priv,
1139                                         struct v4l2_format *f)
1140 {
1141         struct vivid_dev *dev = video_drvdata(file);
1142         const struct v4l2_rect *compose = &dev->compose_cap;
1143         struct v4l2_window *win = &f->fmt.win;
1144         int ret = vidioc_try_fmt_vid_overlay(file, priv, f);
1145         unsigned bitmap_size = ((compose->width + 7) / 8) * compose->height;
1146         unsigned clips_size = win->clipcount * sizeof(dev->clips_cap[0]);
1147         void *new_bitmap = NULL;
1148
1149         if (ret)
1150                 return ret;
1151
1152         if (win->bitmap) {
1153                 new_bitmap = vzalloc(bitmap_size);
1154
1155                 if (new_bitmap == NULL)
1156                         return -ENOMEM;
1157                 if (copy_from_user(new_bitmap, win->bitmap, bitmap_size)) {
1158                         vfree(new_bitmap);
1159                         return -EFAULT;
1160                 }
1161         }
1162
1163         dev->overlay_cap_top = win->w.top;
1164         dev->overlay_cap_left = win->w.left;
1165         dev->overlay_cap_field = win->field;
1166         vfree(dev->bitmap_cap);
1167         dev->bitmap_cap = new_bitmap;
1168         dev->clipcount_cap = win->clipcount;
1169         if (dev->clipcount_cap)
1170                 memcpy(dev->clips_cap, dev->try_clips_cap, clips_size);
1171         return 0;
1172 }
1173
1174 int vivid_vid_cap_overlay(struct file *file, void *fh, unsigned i)
1175 {
1176         struct vivid_dev *dev = video_drvdata(file);
1177
1178         if (dev->multiplanar)
1179                 return -ENOTTY;
1180
1181         if (i && dev->fb_vbase_cap == NULL)
1182                 return -EINVAL;
1183
1184         if (i && dev->fb_cap.fmt.pixelformat != dev->fmt_cap->fourcc) {
1185                 dprintk(dev, 1, "mismatch between overlay and video capture pixelformats\n");
1186                 return -EINVAL;
1187         }
1188
1189         if (dev->overlay_cap_owner && dev->overlay_cap_owner != fh)
1190                 return -EBUSY;
1191         dev->overlay_cap_owner = i ? fh : NULL;
1192         return 0;
1193 }
1194
1195 int vivid_vid_cap_g_fbuf(struct file *file, void *fh,
1196                                 struct v4l2_framebuffer *a)
1197 {
1198         struct vivid_dev *dev = video_drvdata(file);
1199
1200         if (dev->multiplanar)
1201                 return -ENOTTY;
1202
1203         *a = dev->fb_cap;
1204         a->capability = V4L2_FBUF_CAP_BITMAP_CLIPPING |
1205                         V4L2_FBUF_CAP_LIST_CLIPPING;
1206         a->flags = V4L2_FBUF_FLAG_PRIMARY;
1207         a->fmt.field = V4L2_FIELD_NONE;
1208         a->fmt.colorspace = V4L2_COLORSPACE_SRGB;
1209         a->fmt.priv = 0;
1210         return 0;
1211 }
1212
1213 int vivid_vid_cap_s_fbuf(struct file *file, void *fh,
1214                                 const struct v4l2_framebuffer *a)
1215 {
1216         struct vivid_dev *dev = video_drvdata(file);
1217         const struct vivid_fmt *fmt;
1218
1219         if (dev->multiplanar)
1220                 return -ENOTTY;
1221
1222         if (!capable(CAP_SYS_ADMIN) && !capable(CAP_SYS_RAWIO))
1223                 return -EPERM;
1224
1225         if (dev->overlay_cap_owner)
1226                 return -EBUSY;
1227
1228         if (a->base == NULL) {
1229                 dev->fb_cap.base = NULL;
1230                 dev->fb_vbase_cap = NULL;
1231                 return 0;
1232         }
1233
1234         if (a->fmt.width < 48 || a->fmt.height < 32)
1235                 return -EINVAL;
1236         fmt = vivid_get_format(dev, a->fmt.pixelformat);
1237         if (!fmt || !fmt->can_do_overlay)
1238                 return -EINVAL;
1239         if (a->fmt.bytesperline < (a->fmt.width * fmt->bit_depth[0]) / 8)
1240                 return -EINVAL;
1241         if (a->fmt.height * a->fmt.bytesperline < a->fmt.sizeimage)
1242                 return -EINVAL;
1243
1244         dev->fb_vbase_cap = phys_to_virt((unsigned long)a->base);
1245         dev->fb_cap = *a;
1246         dev->overlay_cap_left = clamp_t(int, dev->overlay_cap_left,
1247                                     -dev->fb_cap.fmt.width, dev->fb_cap.fmt.width);
1248         dev->overlay_cap_top = clamp_t(int, dev->overlay_cap_top,
1249                                    -dev->fb_cap.fmt.height, dev->fb_cap.fmt.height);
1250         return 0;
1251 }
1252
1253 static const struct v4l2_audio vivid_audio_inputs[] = {
1254         { 0, "TV", V4L2_AUDCAP_STEREO },
1255         { 1, "Line-In", V4L2_AUDCAP_STEREO },
1256 };
1257
1258 int vidioc_enum_input(struct file *file, void *priv,
1259                                 struct v4l2_input *inp)
1260 {
1261         struct vivid_dev *dev = video_drvdata(file);
1262
1263         if (inp->index >= dev->num_inputs)
1264                 return -EINVAL;
1265
1266         inp->type = V4L2_INPUT_TYPE_CAMERA;
1267         switch (dev->input_type[inp->index]) {
1268         case WEBCAM:
1269                 snprintf(inp->name, sizeof(inp->name), "Webcam %u",
1270                                 dev->input_name_counter[inp->index]);
1271                 inp->capabilities = 0;
1272                 break;
1273         case TV:
1274                 snprintf(inp->name, sizeof(inp->name), "TV %u",
1275                                 dev->input_name_counter[inp->index]);
1276                 inp->type = V4L2_INPUT_TYPE_TUNER;
1277                 inp->std = V4L2_STD_ALL;
1278                 if (dev->has_audio_inputs)
1279                         inp->audioset = (1 << ARRAY_SIZE(vivid_audio_inputs)) - 1;
1280                 inp->capabilities = V4L2_IN_CAP_STD;
1281                 break;
1282         case SVID:
1283                 snprintf(inp->name, sizeof(inp->name), "S-Video %u",
1284                                 dev->input_name_counter[inp->index]);
1285                 inp->std = V4L2_STD_ALL;
1286                 if (dev->has_audio_inputs)
1287                         inp->audioset = (1 << ARRAY_SIZE(vivid_audio_inputs)) - 1;
1288                 inp->capabilities = V4L2_IN_CAP_STD;
1289                 break;
1290         case HDMI:
1291                 snprintf(inp->name, sizeof(inp->name), "HDMI %u",
1292                                 dev->input_name_counter[inp->index]);
1293                 inp->capabilities = V4L2_IN_CAP_DV_TIMINGS;
1294                 if (dev->edid_blocks == 0 ||
1295                     dev->dv_timings_signal_mode == NO_SIGNAL)
1296                         inp->status |= V4L2_IN_ST_NO_SIGNAL;
1297                 else if (dev->dv_timings_signal_mode == NO_LOCK ||
1298                          dev->dv_timings_signal_mode == OUT_OF_RANGE)
1299                         inp->status |= V4L2_IN_ST_NO_H_LOCK;
1300                 break;
1301         }
1302         if (dev->sensor_hflip)
1303                 inp->status |= V4L2_IN_ST_HFLIP;
1304         if (dev->sensor_vflip)
1305                 inp->status |= V4L2_IN_ST_VFLIP;
1306         if (dev->input == inp->index && vivid_is_sdtv_cap(dev)) {
1307                 if (dev->std_signal_mode == NO_SIGNAL) {
1308                         inp->status |= V4L2_IN_ST_NO_SIGNAL;
1309                 } else if (dev->std_signal_mode == NO_LOCK) {
1310                         inp->status |= V4L2_IN_ST_NO_H_LOCK;
1311                 } else if (vivid_is_tv_cap(dev)) {
1312                         switch (tpg_g_quality(&dev->tpg)) {
1313                         case TPG_QUAL_GRAY:
1314                                 inp->status |= V4L2_IN_ST_COLOR_KILL;
1315                                 break;
1316                         case TPG_QUAL_NOISE:
1317                                 inp->status |= V4L2_IN_ST_NO_H_LOCK;
1318                                 break;
1319                         default:
1320                                 break;
1321                         }
1322                 }
1323         }
1324         return 0;
1325 }
1326
1327 int vidioc_g_input(struct file *file, void *priv, unsigned *i)
1328 {
1329         struct vivid_dev *dev = video_drvdata(file);
1330
1331         *i = dev->input;
1332         return 0;
1333 }
1334
1335 int vidioc_s_input(struct file *file, void *priv, unsigned i)
1336 {
1337         struct vivid_dev *dev = video_drvdata(file);
1338         struct v4l2_bt_timings *bt = &dev->dv_timings_cap.bt;
1339         unsigned brightness;
1340
1341         if (i >= dev->num_inputs)
1342                 return -EINVAL;
1343
1344         if (i == dev->input)
1345                 return 0;
1346
1347         if (vb2_is_busy(&dev->vb_vid_cap_q) || vb2_is_busy(&dev->vb_vbi_cap_q))
1348                 return -EBUSY;
1349
1350         dev->input = i;
1351         dev->vid_cap_dev.tvnorms = 0;
1352         if (dev->input_type[i] == TV || dev->input_type[i] == SVID) {
1353                 dev->tv_audio_input = (dev->input_type[i] == TV) ? 0 : 1;
1354                 dev->vid_cap_dev.tvnorms = V4L2_STD_ALL;
1355         }
1356         dev->vbi_cap_dev.tvnorms = dev->vid_cap_dev.tvnorms;
1357         vivid_update_format_cap(dev, false);
1358
1359         if (dev->colorspace) {
1360                 switch (dev->input_type[i]) {
1361                 case WEBCAM:
1362                         v4l2_ctrl_s_ctrl(dev->colorspace, VIVID_CS_SRGB);
1363                         break;
1364                 case TV:
1365                 case SVID:
1366                         v4l2_ctrl_s_ctrl(dev->colorspace, VIVID_CS_170M);
1367                         break;
1368                 case HDMI:
1369                         if (bt->flags & V4L2_DV_FL_IS_CE_VIDEO) {
1370                                 if (dev->src_rect.width == 720 && dev->src_rect.height <= 576)
1371                                         v4l2_ctrl_s_ctrl(dev->colorspace, VIVID_CS_170M);
1372                                 else
1373                                         v4l2_ctrl_s_ctrl(dev->colorspace, VIVID_CS_709);
1374                         } else {
1375                                 v4l2_ctrl_s_ctrl(dev->colorspace, VIVID_CS_SRGB);
1376                         }
1377                         break;
1378                 }
1379         }
1380
1381         /*
1382          * Modify the brightness range depending on the input.
1383          * This makes it easy to use vivid to test if applications can
1384          * handle control range modifications and is also how this is
1385          * typically used in practice as different inputs may be hooked
1386          * up to different receivers with different control ranges.
1387          */
1388         brightness = 128 * i + dev->input_brightness[i];
1389         v4l2_ctrl_modify_range(dev->brightness,
1390                         128 * i, 255 + 128 * i, 1, 128 + 128 * i);
1391         v4l2_ctrl_s_ctrl(dev->brightness, brightness);
1392         return 0;
1393 }
1394
1395 int vidioc_enumaudio(struct file *file, void *fh, struct v4l2_audio *vin)
1396 {
1397         if (vin->index >= ARRAY_SIZE(vivid_audio_inputs))
1398                 return -EINVAL;
1399         *vin = vivid_audio_inputs[vin->index];
1400         return 0;
1401 }
1402
1403 int vidioc_g_audio(struct file *file, void *fh, struct v4l2_audio *vin)
1404 {
1405         struct vivid_dev *dev = video_drvdata(file);
1406
1407         if (!vivid_is_sdtv_cap(dev))
1408                 return -EINVAL;
1409         *vin = vivid_audio_inputs[dev->tv_audio_input];
1410         return 0;
1411 }
1412
1413 int vidioc_s_audio(struct file *file, void *fh, const struct v4l2_audio *vin)
1414 {
1415         struct vivid_dev *dev = video_drvdata(file);
1416
1417         if (!vivid_is_sdtv_cap(dev))
1418                 return -EINVAL;
1419         if (vin->index >= ARRAY_SIZE(vivid_audio_inputs))
1420                 return -EINVAL;
1421         dev->tv_audio_input = vin->index;
1422         return 0;
1423 }
1424
1425 int vivid_video_g_frequency(struct file *file, void *fh, struct v4l2_frequency *vf)
1426 {
1427         struct vivid_dev *dev = video_drvdata(file);
1428
1429         if (vf->tuner != 0)
1430                 return -EINVAL;
1431         vf->frequency = dev->tv_freq;
1432         return 0;
1433 }
1434
1435 int vivid_video_s_frequency(struct file *file, void *fh, const struct v4l2_frequency *vf)
1436 {
1437         struct vivid_dev *dev = video_drvdata(file);
1438
1439         if (vf->tuner != 0)
1440                 return -EINVAL;
1441         dev->tv_freq = clamp_t(unsigned, vf->frequency, MIN_TV_FREQ, MAX_TV_FREQ);
1442         if (vivid_is_tv_cap(dev))
1443                 vivid_update_quality(dev);
1444         return 0;
1445 }
1446
1447 int vivid_video_s_tuner(struct file *file, void *fh, const struct v4l2_tuner *vt)
1448 {
1449         struct vivid_dev *dev = video_drvdata(file);
1450
1451         if (vt->index != 0)
1452                 return -EINVAL;
1453         if (vt->audmode > V4L2_TUNER_MODE_LANG1_LANG2)
1454                 return -EINVAL;
1455         dev->tv_audmode = vt->audmode;
1456         return 0;
1457 }
1458
1459 int vivid_video_g_tuner(struct file *file, void *fh, struct v4l2_tuner *vt)
1460 {
1461         struct vivid_dev *dev = video_drvdata(file);
1462         enum tpg_quality qual;
1463
1464         if (vt->index != 0)
1465                 return -EINVAL;
1466
1467         vt->capability = V4L2_TUNER_CAP_NORM | V4L2_TUNER_CAP_STEREO |
1468                          V4L2_TUNER_CAP_LANG1 | V4L2_TUNER_CAP_LANG2;
1469         vt->audmode = dev->tv_audmode;
1470         vt->rangelow = MIN_TV_FREQ;
1471         vt->rangehigh = MAX_TV_FREQ;
1472         qual = vivid_get_quality(dev, &vt->afc);
1473         if (qual == TPG_QUAL_COLOR)
1474                 vt->signal = 0xffff;
1475         else if (qual == TPG_QUAL_GRAY)
1476                 vt->signal = 0x8000;
1477         else
1478                 vt->signal = 0;
1479         if (qual == TPG_QUAL_NOISE) {
1480                 vt->rxsubchans = 0;
1481         } else if (qual == TPG_QUAL_GRAY) {
1482                 vt->rxsubchans = V4L2_TUNER_SUB_MONO;
1483         } else {
1484                 unsigned channel_nr = dev->tv_freq / (6 * 16);
1485                 unsigned options = (dev->std_cap & V4L2_STD_NTSC_M) ? 4 : 3;
1486
1487                 switch (channel_nr % options) {
1488                 case 0:
1489                         vt->rxsubchans = V4L2_TUNER_SUB_MONO;
1490                         break;
1491                 case 1:
1492                         vt->rxsubchans = V4L2_TUNER_SUB_STEREO;
1493                         break;
1494                 case 2:
1495                         if (dev->std_cap & V4L2_STD_NTSC_M)
1496                                 vt->rxsubchans = V4L2_TUNER_SUB_MONO | V4L2_TUNER_SUB_SAP;
1497                         else
1498                                 vt->rxsubchans = V4L2_TUNER_SUB_LANG1 | V4L2_TUNER_SUB_LANG2;
1499                         break;
1500                 case 3:
1501                         vt->rxsubchans = V4L2_TUNER_SUB_STEREO | V4L2_TUNER_SUB_SAP;
1502                         break;
1503                 }
1504         }
1505         strlcpy(vt->name, "TV Tuner", sizeof(vt->name));
1506         return 0;
1507 }
1508
1509 /* Must remain in sync with the vivid_ctrl_standard_strings array */
1510 const v4l2_std_id vivid_standard[] = {
1511         V4L2_STD_NTSC_M,
1512         V4L2_STD_NTSC_M_JP,
1513         V4L2_STD_NTSC_M_KR,
1514         V4L2_STD_NTSC_443,
1515         V4L2_STD_PAL_BG | V4L2_STD_PAL_H,
1516         V4L2_STD_PAL_I,
1517         V4L2_STD_PAL_DK,
1518         V4L2_STD_PAL_M,
1519         V4L2_STD_PAL_N,
1520         V4L2_STD_PAL_Nc,
1521         V4L2_STD_PAL_60,
1522         V4L2_STD_SECAM_B | V4L2_STD_SECAM_G | V4L2_STD_SECAM_H,
1523         V4L2_STD_SECAM_DK,
1524         V4L2_STD_SECAM_L,
1525         V4L2_STD_SECAM_LC,
1526         V4L2_STD_UNKNOWN
1527 };
1528
1529 /* Must remain in sync with the vivid_standard array */
1530 const char * const vivid_ctrl_standard_strings[] = {
1531         "NTSC-M",
1532         "NTSC-M-JP",
1533         "NTSC-M-KR",
1534         "NTSC-443",
1535         "PAL-BGH",
1536         "PAL-I",
1537         "PAL-DK",
1538         "PAL-M",
1539         "PAL-N",
1540         "PAL-Nc",
1541         "PAL-60",
1542         "SECAM-BGH",
1543         "SECAM-DK",
1544         "SECAM-L",
1545         "SECAM-Lc",
1546         NULL,
1547 };
1548
1549 int vidioc_querystd(struct file *file, void *priv, v4l2_std_id *id)
1550 {
1551         struct vivid_dev *dev = video_drvdata(file);
1552
1553         if (!vivid_is_sdtv_cap(dev))
1554                 return -ENODATA;
1555         if (dev->std_signal_mode == NO_SIGNAL ||
1556             dev->std_signal_mode == NO_LOCK) {
1557                 *id = V4L2_STD_UNKNOWN;
1558                 return 0;
1559         }
1560         if (vivid_is_tv_cap(dev) && tpg_g_quality(&dev->tpg) == TPG_QUAL_NOISE) {
1561                 *id = V4L2_STD_UNKNOWN;
1562         } else if (dev->std_signal_mode == CURRENT_STD) {
1563                 *id = dev->std_cap;
1564         } else if (dev->std_signal_mode == SELECTED_STD) {
1565                 *id = dev->query_std;
1566         } else {
1567                 *id = vivid_standard[dev->query_std_last];
1568                 dev->query_std_last = (dev->query_std_last + 1) % ARRAY_SIZE(vivid_standard);
1569         }
1570
1571         return 0;
1572 }
1573
1574 int vivid_vid_cap_s_std(struct file *file, void *priv, v4l2_std_id id)
1575 {
1576         struct vivid_dev *dev = video_drvdata(file);
1577
1578         if (!vivid_is_sdtv_cap(dev))
1579                 return -ENODATA;
1580         if (dev->std_cap == id)
1581                 return 0;
1582         if (vb2_is_busy(&dev->vb_vid_cap_q) || vb2_is_busy(&dev->vb_vbi_cap_q))
1583                 return -EBUSY;
1584         dev->std_cap = id;
1585         vivid_update_format_cap(dev, false);
1586         return 0;
1587 }
1588
1589 static void find_aspect_ratio(u32 width, u32 height,
1590                                u32 *num, u32 *denom)
1591 {
1592         if (!(height % 3) && ((height * 4 / 3) == width)) {
1593                 *num = 4;
1594                 *denom = 3;
1595         } else if (!(height % 9) && ((height * 16 / 9) == width)) {
1596                 *num = 16;
1597                 *denom = 9;
1598         } else if (!(height % 10) && ((height * 16 / 10) == width)) {
1599                 *num = 16;
1600                 *denom = 10;
1601         } else if (!(height % 4) && ((height * 5 / 4) == width)) {
1602                 *num = 5;
1603                 *denom = 4;
1604         } else if (!(height % 9) && ((height * 15 / 9) == width)) {
1605                 *num = 15;
1606                 *denom = 9;
1607         } else { /* default to 16:9 */
1608                 *num = 16;
1609                 *denom = 9;
1610         }
1611 }
1612
1613 static bool valid_cvt_gtf_timings(struct v4l2_dv_timings *timings)
1614 {
1615         struct v4l2_bt_timings *bt = &timings->bt;
1616         u32 total_h_pixel;
1617         u32 total_v_lines;
1618         u32 h_freq;
1619
1620         if (!v4l2_valid_dv_timings(timings, &vivid_dv_timings_cap,
1621                                 NULL, NULL))
1622                 return false;
1623
1624         total_h_pixel = V4L2_DV_BT_FRAME_WIDTH(bt);
1625         total_v_lines = V4L2_DV_BT_FRAME_HEIGHT(bt);
1626
1627         h_freq = (u32)bt->pixelclock / total_h_pixel;
1628
1629         if (bt->standards == 0 || (bt->standards & V4L2_DV_BT_STD_CVT)) {
1630                 if (v4l2_detect_cvt(total_v_lines, h_freq, bt->vsync, bt->width,
1631                                     bt->polarities, bt->interlaced, timings))
1632                         return true;
1633         }
1634
1635         if (bt->standards == 0 || (bt->standards & V4L2_DV_BT_STD_GTF)) {
1636                 struct v4l2_fract aspect_ratio;
1637
1638                 find_aspect_ratio(bt->width, bt->height,
1639                                   &aspect_ratio.numerator,
1640                                   &aspect_ratio.denominator);
1641                 if (v4l2_detect_gtf(total_v_lines, h_freq, bt->vsync,
1642                                     bt->polarities, bt->interlaced,
1643                                     aspect_ratio, timings))
1644                         return true;
1645         }
1646         return false;
1647 }
1648
1649 int vivid_vid_cap_s_dv_timings(struct file *file, void *_fh,
1650                                     struct v4l2_dv_timings *timings)
1651 {
1652         struct vivid_dev *dev = video_drvdata(file);
1653
1654         if (!vivid_is_hdmi_cap(dev))
1655                 return -ENODATA;
1656         if (!v4l2_find_dv_timings_cap(timings, &vivid_dv_timings_cap,
1657                                       0, NULL, NULL) &&
1658             !valid_cvt_gtf_timings(timings))
1659                 return -EINVAL;
1660
1661         if (v4l2_match_dv_timings(timings, &dev->dv_timings_cap, 0))
1662                 return 0;
1663         if (vb2_is_busy(&dev->vb_vid_cap_q))
1664                 return -EBUSY;
1665
1666         dev->dv_timings_cap = *timings;
1667         vivid_update_format_cap(dev, false);
1668         return 0;
1669 }
1670
1671 int vidioc_query_dv_timings(struct file *file, void *_fh,
1672                                     struct v4l2_dv_timings *timings)
1673 {
1674         struct vivid_dev *dev = video_drvdata(file);
1675
1676         if (!vivid_is_hdmi_cap(dev))
1677                 return -ENODATA;
1678         if (dev->dv_timings_signal_mode == NO_SIGNAL ||
1679             dev->edid_blocks == 0)
1680                 return -ENOLINK;
1681         if (dev->dv_timings_signal_mode == NO_LOCK)
1682                 return -ENOLCK;
1683         if (dev->dv_timings_signal_mode == OUT_OF_RANGE) {
1684                 timings->bt.pixelclock = vivid_dv_timings_cap.bt.max_pixelclock * 2;
1685                 return -ERANGE;
1686         }
1687         if (dev->dv_timings_signal_mode == CURRENT_DV_TIMINGS) {
1688                 *timings = dev->dv_timings_cap;
1689         } else if (dev->dv_timings_signal_mode == SELECTED_DV_TIMINGS) {
1690                 *timings = v4l2_dv_timings_presets[dev->query_dv_timings];
1691         } else {
1692                 *timings = v4l2_dv_timings_presets[dev->query_dv_timings_last];
1693                 dev->query_dv_timings_last = (dev->query_dv_timings_last + 1) %
1694                                                 dev->query_dv_timings_size;
1695         }
1696         return 0;
1697 }
1698
1699 int vidioc_s_edid(struct file *file, void *_fh,
1700                          struct v4l2_edid *edid)
1701 {
1702         struct vivid_dev *dev = video_drvdata(file);
1703
1704         memset(edid->reserved, 0, sizeof(edid->reserved));
1705         if (edid->pad >= dev->num_inputs)
1706                 return -EINVAL;
1707         if (dev->input_type[edid->pad] != HDMI || edid->start_block)
1708                 return -EINVAL;
1709         if (edid->blocks == 0) {
1710                 dev->edid_blocks = 0;
1711                 return 0;
1712         }
1713         if (edid->blocks > dev->edid_max_blocks) {
1714                 edid->blocks = dev->edid_max_blocks;
1715                 return -E2BIG;
1716         }
1717         dev->edid_blocks = edid->blocks;
1718         memcpy(dev->edid, edid->edid, edid->blocks * 128);
1719         return 0;
1720 }
1721
1722 int vidioc_enum_framesizes(struct file *file, void *fh,
1723                                          struct v4l2_frmsizeenum *fsize)
1724 {
1725         struct vivid_dev *dev = video_drvdata(file);
1726
1727         if (!vivid_is_webcam(dev) && !dev->has_scaler_cap)
1728                 return -EINVAL;
1729         if (vivid_get_format(dev, fsize->pixel_format) == NULL)
1730                 return -EINVAL;
1731         if (vivid_is_webcam(dev)) {
1732                 if (fsize->index >= ARRAY_SIZE(webcam_sizes))
1733                         return -EINVAL;
1734                 fsize->type = V4L2_FRMSIZE_TYPE_DISCRETE;
1735                 fsize->discrete = webcam_sizes[fsize->index];
1736                 return 0;
1737         }
1738         if (fsize->index)
1739                 return -EINVAL;
1740         fsize->type = V4L2_FRMSIZE_TYPE_STEPWISE;
1741         fsize->stepwise.min_width = MIN_WIDTH;
1742         fsize->stepwise.max_width = MAX_WIDTH * MAX_ZOOM;
1743         fsize->stepwise.step_width = 2;
1744         fsize->stepwise.min_height = MIN_HEIGHT;
1745         fsize->stepwise.max_height = MAX_HEIGHT * MAX_ZOOM;
1746         fsize->stepwise.step_height = 2;
1747         return 0;
1748 }
1749
1750 /* timeperframe is arbitrary and continuous */
1751 int vidioc_enum_frameintervals(struct file *file, void *priv,
1752                                              struct v4l2_frmivalenum *fival)
1753 {
1754         struct vivid_dev *dev = video_drvdata(file);
1755         const struct vivid_fmt *fmt;
1756         int i;
1757
1758         fmt = vivid_get_format(dev, fival->pixel_format);
1759         if (!fmt)
1760                 return -EINVAL;
1761
1762         if (!vivid_is_webcam(dev)) {
1763                 if (fival->index)
1764                         return -EINVAL;
1765                 if (fival->width < MIN_WIDTH || fival->width > MAX_WIDTH * MAX_ZOOM)
1766                         return -EINVAL;
1767                 if (fival->height < MIN_HEIGHT || fival->height > MAX_HEIGHT * MAX_ZOOM)
1768                         return -EINVAL;
1769                 fival->type = V4L2_FRMIVAL_TYPE_DISCRETE;
1770                 fival->discrete = dev->timeperframe_vid_cap;
1771                 return 0;
1772         }
1773
1774         for (i = 0; i < ARRAY_SIZE(webcam_sizes); i++)
1775                 if (fival->width == webcam_sizes[i].width &&
1776                     fival->height == webcam_sizes[i].height)
1777                         break;
1778         if (i == ARRAY_SIZE(webcam_sizes))
1779                 return -EINVAL;
1780         if (fival->index >= 2 * (VIVID_WEBCAM_SIZES - i))
1781                 return -EINVAL;
1782         fival->type = V4L2_FRMIVAL_TYPE_DISCRETE;
1783         fival->discrete = webcam_intervals[fival->index];
1784         return 0;
1785 }
1786
1787 int vivid_vid_cap_g_parm(struct file *file, void *priv,
1788                           struct v4l2_streamparm *parm)
1789 {
1790         struct vivid_dev *dev = video_drvdata(file);
1791
1792         if (parm->type != (dev->multiplanar ?
1793                            V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE :
1794                            V4L2_BUF_TYPE_VIDEO_CAPTURE))
1795                 return -EINVAL;
1796
1797         parm->parm.capture.capability   = V4L2_CAP_TIMEPERFRAME;
1798         parm->parm.capture.timeperframe = dev->timeperframe_vid_cap;
1799         parm->parm.capture.readbuffers  = 1;
1800         return 0;
1801 }
1802
1803 #define FRACT_CMP(a, OP, b)     \
1804         ((u64)(a).numerator * (b).denominator  OP  (u64)(b).numerator * (a).denominator)
1805
1806 int vivid_vid_cap_s_parm(struct file *file, void *priv,
1807                           struct v4l2_streamparm *parm)
1808 {
1809         struct vivid_dev *dev = video_drvdata(file);
1810         unsigned ival_sz = 2 * (VIVID_WEBCAM_SIZES - dev->webcam_size_idx);
1811         struct v4l2_fract tpf;
1812         unsigned i;
1813
1814         if (parm->type != (dev->multiplanar ?
1815                            V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE :
1816                            V4L2_BUF_TYPE_VIDEO_CAPTURE))
1817                 return -EINVAL;
1818         if (!vivid_is_webcam(dev))
1819                 return vivid_vid_cap_g_parm(file, priv, parm);
1820
1821         tpf = parm->parm.capture.timeperframe;
1822
1823         if (tpf.denominator == 0)
1824                 tpf = webcam_intervals[ival_sz - 1];
1825         for (i = 0; i < ival_sz; i++)
1826                 if (FRACT_CMP(tpf, >=, webcam_intervals[i]))
1827                         break;
1828         if (i == ival_sz)
1829                 i = ival_sz - 1;
1830         dev->webcam_ival_idx = i;
1831         tpf = webcam_intervals[dev->webcam_ival_idx];
1832         tpf = FRACT_CMP(tpf, <, tpf_min) ? tpf_min : tpf;
1833         tpf = FRACT_CMP(tpf, >, tpf_max) ? tpf_max : tpf;
1834
1835         /* resync the thread's timings */
1836         dev->cap_seq_resync = true;
1837         dev->timeperframe_vid_cap = tpf;
1838         parm->parm.capture.timeperframe = tpf;
1839         parm->parm.capture.readbuffers  = 1;
1840         return 0;
1841 }