kernel/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                 .name     = "RGB565 (LE)",
  44                 .fourcc   = V4L2_PIX_FMT_RGB565, /* gggbbbbb rrrrrggg */
  45                 .vdownsampling = { 1 },
  46                 .bit_depth = { 16 },
  47                 .planes   = 1,
  48                 .buffers = 1,
  49         },
  50         {
  51                 .name     = "XRGB555 (LE)",
  52                 .fourcc   = V4L2_PIX_FMT_XRGB555, /* gggbbbbb arrrrrgg */
  53                 .vdownsampling = { 1 },
  54                 .bit_depth = { 16 },
  55                 .planes   = 1,
  56                 .buffers = 1,
  57         },
  58         {
  59                 .name     = "ARGB555 (LE)",
  60                 .fourcc   = V4L2_PIX_FMT_ARGB555, /* gggbbbbb arrrrrgg */
  61                 .vdownsampling = { 1 },
  62                 .bit_depth = { 16 },
  63                 .planes   = 1,
  64                 .buffers = 1,
  65         },
  66 };
  67
  68 /* The number of discrete webcam framesizes */
  69 #define VIVID_WEBCAM_SIZES 3
  70 /* The number of discrete webcam frameintervals */
  71 #define VIVID_WEBCAM_IVALS (VIVID_WEBCAM_SIZES * 2)
  72
  73 /* Sizes must be in increasing order */
  74 static const struct v4l2_frmsize_discrete webcam_sizes[VIVID_WEBCAM_SIZES] = {
  75         {  320, 180 },
  76         {  640, 360 },
  77         { 1280, 720 },
  78 };
  79
  80 /*
  81  * Intervals must be in increasing order and there must be twice as many
  82  * elements in this array as there are in webcam_sizes.
  83  */
  84 static const struct v4l2_fract webcam_intervals[VIVID_WEBCAM_IVALS] = {
  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_ycbcr_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_ycbcr_enc(&dev->tpg);
 508         return dev->ycbcr_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->ycbcr_enc    = vivid_ycbcr_enc_cap(dev);
 531         mp->quantization = vivid_quantization_cap(dev);
 532         mp->num_planes = dev->fmt_cap->buffers;
 533         for (p = 0; p < mp->num_planes; p++) {
 534                 mp->plane_fmt[p].bytesperline = tpg_g_bytesperline(&dev->tpg, p);
 535                 mp->plane_fmt[p].sizeimage =
 536                         tpg_g_line_width(&dev->tpg, p) * mp->height +
 537                         dev->fmt_cap->data_offset[p];
 538         }
 539         return 0;
 540 }
 541
 542 int vivid_try_fmt_vid_cap(struct file *file, void *priv,
 543                         struct v4l2_format *f)
 544 {
 545         struct v4l2_pix_format_mplane *mp = &f->fmt.pix_mp;
 546         struct v4l2_plane_pix_format *pfmt = mp->plane_fmt;
 547         struct vivid_dev *dev = video_drvdata(file);
 548         const struct vivid_fmt *fmt;
 549         unsigned bytesperline, max_bpl;
 550         unsigned factor = 1;
 551         unsigned w, h;
 552         unsigned p;
 553
 554         fmt = vivid_get_format(dev, mp->pixelformat);
 555         if (!fmt) {
 556                 dprintk(dev, 1, "Fourcc format (0x%08x) unknown.\n",
 557                         mp->pixelformat);
 558                 mp->pixelformat = V4L2_PIX_FMT_YUYV;
 559                 fmt = vivid_get_format(dev, mp->pixelformat);
 560         }
 561
 562         mp->field = vivid_field_cap(dev, mp->field);
 563         if (vivid_is_webcam(dev)) {
 564                 const struct v4l2_frmsize_discrete *sz =
 565                         v4l2_find_nearest_format(&webcam_probe, mp->width, mp->height);
 566
 567                 w = sz->width;
 568                 h = sz->height;
 569         } else if (vivid_is_sdtv_cap(dev)) {
 570                 w = 720;
 571                 h = (dev->std_cap & V4L2_STD_525_60) ? 480 : 576;
 572         } else {
 573                 w = dev->src_rect.width;
 574                 h = dev->src_rect.height;
 575         }
 576         if (V4L2_FIELD_HAS_T_OR_B(mp->field))
 577                 factor = 2;
 578         if (vivid_is_webcam(dev) ||
 579             (!dev->has_scaler_cap && !dev->has_crop_cap && !dev->has_compose_cap)) {
 580                 mp->width = w;
 581                 mp->height = h / factor;
 582         } else {
 583                 struct v4l2_rect r = { 0, 0, mp->width, mp->height * factor };
 584
 585                 rect_set_min_size(&r, &vivid_min_rect);
 586                 rect_set_max_size(&r, &vivid_max_rect);
 587                 if (dev->has_scaler_cap && !dev->has_compose_cap) {
 588                         struct v4l2_rect max_r = { 0, 0, MAX_ZOOM * w, MAX_ZOOM * h };
 589
 590                         rect_set_max_size(&r, &max_r);
 591                 } else if (!dev->has_scaler_cap && dev->has_crop_cap && !dev->has_compose_cap) {
 592                         rect_set_max_size(&r, &dev->src_rect);
 593                 } else if (!dev->has_scaler_cap && !dev->has_crop_cap) {
 594                         rect_set_min_size(&r, &dev->src_rect);
 595                 }
 596                 mp->width = r.width;
 597                 mp->height = r.height / factor;
 598         }
 599
 600         /* This driver supports custom bytesperline values */
 601
 602         mp->num_planes = fmt->buffers;
 603         for (p = 0; p < mp->num_planes; p++) {
 604                 /* Calculate the minimum supported bytesperline value */
 605                 bytesperline = (mp->width * fmt->bit_depth[p]) >> 3;
 606                 /* Calculate the maximum supported bytesperline value */
 607                 max_bpl = (MAX_ZOOM * MAX_WIDTH * fmt->bit_depth[p]) >> 3;
 608
 609                 if (pfmt[p].bytesperline > max_bpl)
 610                         pfmt[p].bytesperline = max_bpl;
 611                 if (pfmt[p].bytesperline < bytesperline)
 612                         pfmt[p].bytesperline = bytesperline;
 613                 pfmt[p].sizeimage = tpg_calc_line_width(&dev->tpg, p, pfmt[p].bytesperline) *
 614                         mp->height + fmt->data_offset[p];
 615                 memset(pfmt[p].reserved, 0, sizeof(pfmt[p].reserved));
 616         }
 617         mp->colorspace = vivid_colorspace_cap(dev);
 618         mp->ycbcr_enc = vivid_ycbcr_enc_cap(dev);
 619         mp->quantization = vivid_quantization_cap(dev);
 620         memset(mp->reserved, 0, sizeof(mp->reserved));
 621         return 0;
 622 }
 623
 624 int vivid_s_fmt_vid_cap(struct file *file, void *priv,
 625                                         struct v4l2_format *f)
 626 {
 627         struct v4l2_pix_format_mplane *mp = &f->fmt.pix_mp;
 628         struct vivid_dev *dev = video_drvdata(file);
 629         struct v4l2_rect *crop = &dev->crop_cap;
 630         struct v4l2_rect *compose = &dev->compose_cap;
 631         struct vb2_queue *q = &dev->vb_vid_cap_q;
 632         int ret = vivid_try_fmt_vid_cap(file, priv, f);
 633         unsigned factor = 1;
 634         unsigned p;
 635         unsigned i;
 636
 637         if (ret < 0)
 638                 return ret;
 639
 640         if (vb2_is_busy(q)) {
 641                 dprintk(dev, 1, "%s device busy\n", __func__);
 642                 return -EBUSY;
 643         }
 644
 645         if (dev->overlay_cap_owner && dev->fb_cap.fmt.pixelformat != mp->pixelformat) {
 646                 dprintk(dev, 1, "overlay is active, can't change pixelformat\n");
 647                 return -EBUSY;
 648         }
 649
 650         dev->fmt_cap = vivid_get_format(dev, mp->pixelformat);
 651         if (V4L2_FIELD_HAS_T_OR_B(mp->field))
 652                 factor = 2;
 653
 654         /* Note: the webcam input doesn't support scaling, cropping or composing */
 655
 656         if (!vivid_is_webcam(dev) &&
 657             (dev->has_scaler_cap || dev->has_crop_cap || dev->has_compose_cap)) {
 658                 struct v4l2_rect r = { 0, 0, mp->width, mp->height };
 659
 660                 if (dev->has_scaler_cap) {
 661                         if (dev->has_compose_cap)
 662                                 rect_map_inside(compose, &r);
 663                         else
 664                                 *compose = r;
 665                         if (dev->has_crop_cap && !dev->has_compose_cap) {
 666                                 struct v4l2_rect min_r = {
 667                                         0, 0,
 668                                         r.width / MAX_ZOOM,
 669                                         factor * r.height / MAX_ZOOM
 670                                 };
 671                                 struct v4l2_rect max_r = {
 672                                         0, 0,
 673                                         r.width * MAX_ZOOM,
 674                                         factor * r.height * MAX_ZOOM
 675                                 };
 676
 677                                 rect_set_min_size(crop, &min_r);
 678                                 rect_set_max_size(crop, &max_r);
 679                                 rect_map_inside(crop, &dev->crop_bounds_cap);
 680                         } else if (dev->has_crop_cap) {
 681                                 struct v4l2_rect min_r = {
 682                                         0, 0,
 683                                         compose->width / MAX_ZOOM,
 684                                         factor * compose->height / MAX_ZOOM
 685                                 };
 686                                 struct v4l2_rect max_r = {
 687                                         0, 0,
 688                                         compose->width * MAX_ZOOM,
 689                                         factor * compose->height * MAX_ZOOM
 690                                 };
 691
 692                                 rect_set_min_size(crop, &min_r);
 693                                 rect_set_max_size(crop, &max_r);
 694                                 rect_map_inside(crop, &dev->crop_bounds_cap);
 695                         }
 696                 } else if (dev->has_crop_cap && !dev->has_compose_cap) {
 697                         r.height *= factor;
 698                         rect_set_size_to(crop, &r);
 699                         rect_map_inside(crop, &dev->crop_bounds_cap);
 700                         r = *crop;
 701                         r.height /= factor;
 702                         rect_set_size_to(compose, &r);
 703                 } else if (!dev->has_crop_cap) {
 704                         rect_map_inside(compose, &r);
 705                 } else {
 706                         r.height *= factor;
 707                         rect_set_max_size(crop, &r);
 708                         rect_map_inside(crop, &dev->crop_bounds_cap);
 709                         compose->top *= factor;
 710                         compose->height *= factor;
 711                         rect_set_size_to(compose, crop);
 712                         rect_map_inside(compose, &r);
 713                         compose->top /= factor;
 714                         compose->height /= factor;
 715                 }
 716         } else if (vivid_is_webcam(dev)) {
 717                 /* Guaranteed to be a match */
 718                 for (i = 0; i < ARRAY_SIZE(webcam_sizes); i++)
 719                         if (webcam_sizes[i].width == mp->width &&
 720                                         webcam_sizes[i].height == mp->height)
 721                                 break;
 722                 dev->webcam_size_idx = i;
 723                 if (dev->webcam_ival_idx >= 2 * (3 - i))
 724                         dev->webcam_ival_idx = 2 * (3 - i) - 1;
 725                 vivid_update_format_cap(dev, false);
 726         } else {
 727                 struct v4l2_rect r = { 0, 0, mp->width, mp->height };
 728
 729                 rect_set_size_to(compose, &r);
 730                 r.height *= factor;
 731                 rect_set_size_to(crop, &r);
 732         }
 733
 734         dev->fmt_cap_rect.width = mp->width;
 735         dev->fmt_cap_rect.height = mp->height;
 736         tpg_s_buf_height(&dev->tpg, mp->height);
 737         tpg_s_fourcc(&dev->tpg, dev->fmt_cap->fourcc);
 738         for (p = 0; p < tpg_g_buffers(&dev->tpg); p++)
 739                 tpg_s_bytesperline(&dev->tpg, p, mp->plane_fmt[p].bytesperline);
 740         dev->field_cap = mp->field;
 741         if (dev->field_cap == V4L2_FIELD_ALTERNATE)
 742                 tpg_s_field(&dev->tpg, V4L2_FIELD_TOP, true);
 743         else
 744                 tpg_s_field(&dev->tpg, dev->field_cap, false);
 745         tpg_s_crop_compose(&dev->tpg, &dev->crop_cap, &dev->compose_cap);
 746         if (vivid_is_sdtv_cap(dev))
 747                 dev->tv_field_cap = mp->field;
 748         tpg_update_mv_step(&dev->tpg);
 749         return 0;
 750 }
 751
 752 int vidioc_g_fmt_vid_cap_mplane(struct file *file, void *priv,
 753                                         struct v4l2_format *f)
 754 {
 755         struct vivid_dev *dev = video_drvdata(file);
 756
 757         if (!dev->multiplanar)
 758                 return -ENOTTY;
 759         return vivid_g_fmt_vid_cap(file, priv, f);
 760 }
 761
 762 int vidioc_try_fmt_vid_cap_mplane(struct file *file, void *priv,
 763                         struct v4l2_format *f)
 764 {
 765         struct vivid_dev *dev = video_drvdata(file);
 766
 767         if (!dev->multiplanar)
 768                 return -ENOTTY;
 769         return vivid_try_fmt_vid_cap(file, priv, f);
 770 }
 771
 772 int vidioc_s_fmt_vid_cap_mplane(struct file *file, void *priv,
 773                         struct v4l2_format *f)
 774 {
 775         struct vivid_dev *dev = video_drvdata(file);
 776
 777         if (!dev->multiplanar)
 778                 return -ENOTTY;
 779         return vivid_s_fmt_vid_cap(file, priv, f);
 780 }
 781
 782 int vidioc_g_fmt_vid_cap(struct file *file, void *priv,
 783                                         struct v4l2_format *f)
 784 {
 785         struct vivid_dev *dev = video_drvdata(file);
 786
 787         if (dev->multiplanar)
 788                 return -ENOTTY;
 789         return fmt_sp2mp_func(file, priv, f, vivid_g_fmt_vid_cap);
 790 }
 791
 792 int vidioc_try_fmt_vid_cap(struct file *file, void *priv,
 793                         struct v4l2_format *f)
 794 {
 795         struct vivid_dev *dev = video_drvdata(file);
 796
 797         if (dev->multiplanar)
 798                 return -ENOTTY;
 799         return fmt_sp2mp_func(file, priv, f, vivid_try_fmt_vid_cap);
 800 }
 801
 802 int vidioc_s_fmt_vid_cap(struct file *file, void *priv,
 803                         struct v4l2_format *f)
 804 {
 805         struct vivid_dev *dev = video_drvdata(file);
 806
 807         if (dev->multiplanar)
 808                 return -ENOTTY;
 809         return fmt_sp2mp_func(file, priv, f, vivid_s_fmt_vid_cap);
 810 }
 811
 812 int vivid_vid_cap_g_selection(struct file *file, void *priv,
 813                               struct v4l2_selection *sel)
 814 {
 815         struct vivid_dev *dev = video_drvdata(file);
 816
 817         if (!dev->has_crop_cap && !dev->has_compose_cap)
 818                 return -ENOTTY;
 819         if (sel->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
 820                 return -EINVAL;
 821         if (vivid_is_webcam(dev))
 822                 return -EINVAL;
 823
 824         sel->r.left = sel->r.top = 0;
 825         switch (sel->target) {
 826         case V4L2_SEL_TGT_CROP:
 827                 if (!dev->has_crop_cap)
 828                         return -EINVAL;
 829                 sel->r = dev->crop_cap;
 830                 break;
 831         case V4L2_SEL_TGT_CROP_DEFAULT:
 832         case V4L2_SEL_TGT_CROP_BOUNDS:
 833                 if (!dev->has_crop_cap)
 834                         return -EINVAL;
 835                 sel->r = dev->src_rect;
 836                 break;
 837         case V4L2_SEL_TGT_COMPOSE_BOUNDS:
 838                 if (!dev->has_compose_cap)
 839                         return -EINVAL;
 840                 sel->r = vivid_max_rect;
 841                 break;
 842         case V4L2_SEL_TGT_COMPOSE:
 843                 if (!dev->has_compose_cap)
 844                         return -EINVAL;
 845                 sel->r = dev->compose_cap;
 846                 break;
 847         case V4L2_SEL_TGT_COMPOSE_DEFAULT:
 848                 if (!dev->has_compose_cap)
 849                         return -EINVAL;
 850                 sel->r = dev->fmt_cap_rect;
 851                 break;
 852         default:
 853                 return -EINVAL;
 854         }
 855         return 0;
 856 }
 857
 858 int vivid_vid_cap_s_selection(struct file *file, void *fh, struct v4l2_selection *s)
 859 {
 860         struct vivid_dev *dev = video_drvdata(file);
 861         struct v4l2_rect *crop = &dev->crop_cap;
 862         struct v4l2_rect *compose = &dev->compose_cap;
 863         unsigned factor = V4L2_FIELD_HAS_T_OR_B(dev->field_cap) ? 2 : 1;
 864         int ret;
 865
 866         if (!dev->has_crop_cap && !dev->has_compose_cap)
 867                 return -ENOTTY;
 868         if (s->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
 869                 return -EINVAL;
 870         if (vivid_is_webcam(dev))
 871                 return -EINVAL;
 872
 873         switch (s->target) {
 874         case V4L2_SEL_TGT_CROP:
 875                 if (!dev->has_crop_cap)
 876                         return -EINVAL;
 877                 ret = vivid_vid_adjust_sel(s->flags, &s->r);
 878                 if (ret)
 879                         return ret;
 880                 rect_set_min_size(&s->r, &vivid_min_rect);
 881                 rect_set_max_size(&s->r, &dev->src_rect);
 882                 rect_map_inside(&s->r, &dev->crop_bounds_cap);
 883                 s->r.top /= factor;
 884                 s->r.height /= factor;
 885                 if (dev->has_scaler_cap) {
 886                         struct v4l2_rect fmt = dev->fmt_cap_rect;
 887                         struct v4l2_rect max_rect = {
 888                                 0, 0,
 889                                 s->r.width * MAX_ZOOM,
 890                                 s->r.height * MAX_ZOOM
 891                         };
 892                         struct v4l2_rect min_rect = {
 893                                 0, 0,
 894                                 s->r.width / MAX_ZOOM,
 895                                 s->r.height / MAX_ZOOM
 896                         };
 897
 898                         rect_set_min_size(&fmt, &min_rect);
 899                         if (!dev->has_compose_cap)
 900                                 rect_set_max_size(&fmt, &max_rect);
 901                         if (!rect_same_size(&dev->fmt_cap_rect, &fmt) &&
 902                             vb2_is_busy(&dev->vb_vid_cap_q))
 903                                 return -EBUSY;
 904                         if (dev->has_compose_cap) {
 905                                 rect_set_min_size(compose, &min_rect);
 906                                 rect_set_max_size(compose, &max_rect);
 907                         }
 908                         dev->fmt_cap_rect = fmt;
 909                         tpg_s_buf_height(&dev->tpg, fmt.height);
 910                 } else if (dev->has_compose_cap) {
 911                         struct v4l2_rect fmt = dev->fmt_cap_rect;
 912
 913                         rect_set_min_size(&fmt, &s->r);
 914                         if (!rect_same_size(&dev->fmt_cap_rect, &fmt) &&
 915                             vb2_is_busy(&dev->vb_vid_cap_q))
 916                                 return -EBUSY;
 917                         dev->fmt_cap_rect = fmt;
 918                         tpg_s_buf_height(&dev->tpg, fmt.height);
 919                         rect_set_size_to(compose, &s->r);
 920                         rect_map_inside(compose, &dev->fmt_cap_rect);
 921                 } else {
 922                         if (!rect_same_size(&s->r, &dev->fmt_cap_rect) &&
 923                             vb2_is_busy(&dev->vb_vid_cap_q))
 924                                 return -EBUSY;
 925                         rect_set_size_to(&dev->fmt_cap_rect, &s->r);
 926                         rect_set_size_to(compose, &s->r);
 927                         rect_map_inside(compose, &dev->fmt_cap_rect);
 928                         tpg_s_buf_height(&dev->tpg, dev->fmt_cap_rect.height);
 929                 }
 930                 s->r.top *= factor;
 931                 s->r.height *= factor;
 932                 *crop = s->r;
 933                 break;
 934         case V4L2_SEL_TGT_COMPOSE:
 935                 if (!dev->has_compose_cap)
 936                         return -EINVAL;
 937                 ret = vivid_vid_adjust_sel(s->flags, &s->r);
 938                 if (ret)
 939                         return ret;
 940                 rect_set_min_size(&s->r, &vivid_min_rect);
 941                 rect_set_max_size(&s->r, &dev->fmt_cap_rect);
 942                 if (dev->has_scaler_cap) {
 943                         struct v4l2_rect max_rect = {
 944                                 0, 0,
 945                                 dev->src_rect.width * MAX_ZOOM,
 946                                 (dev->src_rect.height / factor) * MAX_ZOOM
 947                         };
 948
 949                         rect_set_max_size(&s->r, &max_rect);
 950                         if (dev->has_crop_cap) {
 951                                 struct v4l2_rect min_rect = {
 952                                         0, 0,
 953                                         s->r.width / MAX_ZOOM,
 954                                         (s->r.height * factor) / MAX_ZOOM
 955                                 };
 956                                 struct v4l2_rect max_rect = {
 957                                         0, 0,
 958                                         s->r.width * MAX_ZOOM,
 959                                         (s->r.height * factor) * MAX_ZOOM
 960                                 };
 961
 962                                 rect_set_min_size(crop, &min_rect);
 963                                 rect_set_max_size(crop, &max_rect);
 964                                 rect_map_inside(crop, &dev->crop_bounds_cap);
 965                         }
 966                 } else if (dev->has_crop_cap) {
 967                         s->r.top *= factor;
 968                         s->r.height *= factor;
 969                         rect_set_max_size(&s->r, &dev->src_rect);
 970                         rect_set_size_to(crop, &s->r);
 971                         rect_map_inside(crop, &dev->crop_bounds_cap);
 972                         s->r.top /= factor;
 973                         s->r.height /= factor;
 974                 } else {
 975                         rect_set_size_to(&s->r, &dev->src_rect);
 976                         s->r.height /= factor;
 977                 }
 978                 rect_map_inside(&s->r, &dev->fmt_cap_rect);
 979                 if (dev->bitmap_cap && (compose->width != s->r.width ||
 980                                         compose->height != s->r.height)) {
 981                         kfree(dev->bitmap_cap);
 982                         dev->bitmap_cap = NULL;
 983                 }
 984                 *compose = s->r;
 985                 break;
 986         default:
 987                 return -EINVAL;
 988         }
 989
 990         tpg_s_crop_compose(&dev->tpg, crop, compose);
 991         return 0;
 992 }
 993
 994 int vivid_vid_cap_cropcap(struct file *file, void *priv,
 995                               struct v4l2_cropcap *cap)
 996 {
 997         struct vivid_dev *dev = video_drvdata(file);
 998
 999         if (cap->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
1000                 return -EINVAL;
1001
1002         switch (vivid_get_pixel_aspect(dev)) {
1003         case TPG_PIXEL_ASPECT_NTSC:
1004                 cap->pixelaspect.numerator = 11;
1005                 cap->pixelaspect.denominator = 10;
1006                 break;
1007         case TPG_PIXEL_ASPECT_PAL:
1008                 cap->pixelaspect.numerator = 54;
1009                 cap->pixelaspect.denominator = 59;
1010                 break;
1011         case TPG_PIXEL_ASPECT_SQUARE:
1012                 cap->pixelaspect.numerator = 1;
1013                 cap->pixelaspect.denominator = 1;
1014                 break;
1015         }
1016         return 0;
1017 }
1018
1019 int vidioc_enum_fmt_vid_overlay(struct file *file, void  *priv,
1020                                         struct v4l2_fmtdesc *f)
1021 {
1022         struct vivid_dev *dev = video_drvdata(file);
1023         const struct vivid_fmt *fmt;
1024
1025         if (dev->multiplanar)
1026                 return -ENOTTY;
1027
1028         if (f->index >= ARRAY_SIZE(formats_ovl))
1029                 return -EINVAL;
1030
1031         fmt = &formats_ovl[f->index];
1032
1033         strlcpy(f->description, fmt->name, sizeof(f->description));
1034         f->pixelformat = fmt->fourcc;
1035         return 0;
1036 }
1037
1038 int vidioc_g_fmt_vid_overlay(struct file *file, void *priv,
1039                                         struct v4l2_format *f)
1040 {
1041         struct vivid_dev *dev = video_drvdata(file);
1042         const struct v4l2_rect *compose = &dev->compose_cap;
1043         struct v4l2_window *win = &f->fmt.win;
1044         unsigned clipcount = win->clipcount;
1045
1046         if (dev->multiplanar)
1047                 return -ENOTTY;
1048
1049         win->w.top = dev->overlay_cap_top;
1050         win->w.left = dev->overlay_cap_left;
1051         win->w.width = compose->width;
1052         win->w.height = compose->height;
1053         win->field = dev->overlay_cap_field;
1054         win->clipcount = dev->clipcount_cap;
1055         if (clipcount > dev->clipcount_cap)
1056                 clipcount = dev->clipcount_cap;
1057         if (dev->bitmap_cap == NULL)
1058                 win->bitmap = NULL;
1059         else if (win->bitmap) {
1060                 if (copy_to_user(win->bitmap, dev->bitmap_cap,
1061                     ((compose->width + 7) / 8) * compose->height))
1062                         return -EFAULT;
1063         }
1064         if (clipcount && win->clips) {
1065                 if (copy_to_user(win->clips, dev->clips_cap,
1066                                  clipcount * sizeof(dev->clips_cap[0])))
1067                         return -EFAULT;
1068         }
1069         return 0;
1070 }
1071
1072 int vidioc_try_fmt_vid_overlay(struct file *file, void *priv,
1073                                         struct v4l2_format *f)
1074 {
1075         struct vivid_dev *dev = video_drvdata(file);
1076         const struct v4l2_rect *compose = &dev->compose_cap;
1077         struct v4l2_window *win = &f->fmt.win;
1078         int i, j;
1079
1080         if (dev->multiplanar)
1081                 return -ENOTTY;
1082
1083         win->w.left = clamp_t(int, win->w.left,
1084                               -dev->fb_cap.fmt.width, dev->fb_cap.fmt.width);
1085         win->w.top = clamp_t(int, win->w.top,
1086                              -dev->fb_cap.fmt.height, dev->fb_cap.fmt.height);
1087         win->w.width = compose->width;
1088         win->w.height = compose->height;
1089         if (win->field != V4L2_FIELD_BOTTOM && win->field != V4L2_FIELD_TOP)
1090                 win->field = V4L2_FIELD_ANY;
1091         win->chromakey = 0;
1092         win->global_alpha = 0;
1093         if (win->clipcount && !win->clips)
1094                 win->clipcount = 0;
1095         if (win->clipcount > MAX_CLIPS)
1096                 win->clipcount = MAX_CLIPS;
1097         if (win->clipcount) {
1098                 if (copy_from_user(dev->try_clips_cap, win->clips,
1099                                    win->clipcount * sizeof(dev->clips_cap[0])))
1100                         return -EFAULT;
1101                 for (i = 0; i < win->clipcount; i++) {
1102                         struct v4l2_rect *r = &dev->try_clips_cap[i].c;
1103
1104                         r->top = clamp_t(s32, r->top, 0, dev->fb_cap.fmt.height - 1);
1105                         r->height = clamp_t(s32, r->height, 1, dev->fb_cap.fmt.height - r->top);
1106                         r->left = clamp_t(u32, r->left, 0, dev->fb_cap.fmt.width - 1);
1107                         r->width = clamp_t(u32, r->width, 1, dev->fb_cap.fmt.width - r->left);
1108                 }
1109                 /*
1110                  * Yeah, so sue me, it's an O(n^2) algorithm. But n is a small
1111                  * number and it's typically a one-time deal.
1112                  */
1113                 for (i = 0; i < win->clipcount - 1; i++) {
1114                         struct v4l2_rect *r1 = &dev->try_clips_cap[i].c;
1115
1116                         for (j = i + 1; j < win->clipcount; j++) {
1117                                 struct v4l2_rect *r2 = &dev->try_clips_cap[j].c;
1118
1119                                 if (rect_overlap(r1, r2))
1120                                         return -EINVAL;
1121                         }
1122                 }
1123                 if (copy_to_user(win->clips, dev->try_clips_cap,
1124                                  win->clipcount * sizeof(dev->clips_cap[0])))
1125                         return -EFAULT;
1126         }
1127         return 0;
1128 }
1129
1130 int vidioc_s_fmt_vid_overlay(struct file *file, void *priv,
1131                                         struct v4l2_format *f)
1132 {
1133         struct vivid_dev *dev = video_drvdata(file);
1134         const struct v4l2_rect *compose = &dev->compose_cap;
1135         struct v4l2_window *win = &f->fmt.win;
1136         int ret = vidioc_try_fmt_vid_overlay(file, priv, f);
1137         unsigned bitmap_size = ((compose->width + 7) / 8) * compose->height;
1138         unsigned clips_size = win->clipcount * sizeof(dev->clips_cap[0]);
1139         void *new_bitmap = NULL;
1140
1141         if (ret)
1142                 return ret;
1143
1144         if (win->bitmap) {
1145                 new_bitmap = vzalloc(bitmap_size);
1146
1147                 if (new_bitmap == NULL)
1148                         return -ENOMEM;
1149                 if (copy_from_user(new_bitmap, win->bitmap, bitmap_size)) {
1150                         vfree(new_bitmap);
1151                         return -EFAULT;
1152                 }
1153         }
1154
1155         dev->overlay_cap_top = win->w.top;
1156         dev->overlay_cap_left = win->w.left;
1157         dev->overlay_cap_field = win->field;
1158         vfree(dev->bitmap_cap);
1159         dev->bitmap_cap = new_bitmap;
1160         dev->clipcount_cap = win->clipcount;
1161         if (dev->clipcount_cap)
1162                 memcpy(dev->clips_cap, dev->try_clips_cap, clips_size);
1163         return 0;
1164 }
1165
1166 int vivid_vid_cap_overlay(struct file *file, void *fh, unsigned i)
1167 {
1168         struct vivid_dev *dev = video_drvdata(file);
1169
1170         if (dev->multiplanar)
1171                 return -ENOTTY;
1172
1173         if (i && dev->fb_vbase_cap == NULL)
1174                 return -EINVAL;
1175
1176         if (i && dev->fb_cap.fmt.pixelformat != dev->fmt_cap->fourcc) {
1177                 dprintk(dev, 1, "mismatch between overlay and video capture pixelformats\n");
1178                 return -EINVAL;
1179         }
1180
1181         if (dev->overlay_cap_owner && dev->overlay_cap_owner != fh)
1182                 return -EBUSY;
1183         dev->overlay_cap_owner = i ? fh : NULL;
1184         return 0;
1185 }
1186
1187 int vivid_vid_cap_g_fbuf(struct file *file, void *fh,
1188                                 struct v4l2_framebuffer *a)
1189 {
1190         struct vivid_dev *dev = video_drvdata(file);
1191
1192         if (dev->multiplanar)
1193                 return -ENOTTY;
1194
1195         *a = dev->fb_cap;
1196         a->capability = V4L2_FBUF_CAP_BITMAP_CLIPPING |
1197                         V4L2_FBUF_CAP_LIST_CLIPPING;
1198         a->flags = V4L2_FBUF_FLAG_PRIMARY;
1199         a->fmt.field = V4L2_FIELD_NONE;
1200         a->fmt.colorspace = V4L2_COLORSPACE_SRGB;
1201         a->fmt.priv = 0;
1202         return 0;
1203 }
1204
1205 int vivid_vid_cap_s_fbuf(struct file *file, void *fh,
1206                                 const struct v4l2_framebuffer *a)
1207 {
1208         struct vivid_dev *dev = video_drvdata(file);
1209         const struct vivid_fmt *fmt;
1210
1211         if (dev->multiplanar)
1212                 return -ENOTTY;
1213
1214         if (!capable(CAP_SYS_ADMIN) && !capable(CAP_SYS_RAWIO))
1215                 return -EPERM;
1216
1217         if (dev->overlay_cap_owner)
1218                 return -EBUSY;
1219
1220         if (a->base == NULL) {
1221                 dev->fb_cap.base = NULL;
1222                 dev->fb_vbase_cap = NULL;
1223                 return 0;
1224         }
1225
1226         if (a->fmt.width < 48 || a->fmt.height < 32)
1227                 return -EINVAL;
1228         fmt = vivid_get_format(dev, a->fmt.pixelformat);
1229         if (!fmt || !fmt->can_do_overlay)
1230                 return -EINVAL;
1231         if (a->fmt.bytesperline < (a->fmt.width * fmt->bit_depth[0]) / 8)
1232                 return -EINVAL;
1233         if (a->fmt.height * a->fmt.bytesperline < a->fmt.sizeimage)
1234                 return -EINVAL;
1235
1236         dev->fb_vbase_cap = phys_to_virt((unsigned long)a->base);
1237         dev->fb_cap = *a;
1238         dev->overlay_cap_left = clamp_t(int, dev->overlay_cap_left,
1239                                     -dev->fb_cap.fmt.width, dev->fb_cap.fmt.width);
1240         dev->overlay_cap_top = clamp_t(int, dev->overlay_cap_top,
1241                                    -dev->fb_cap.fmt.height, dev->fb_cap.fmt.height);
1242         return 0;
1243 }
1244
1245 static const struct v4l2_audio vivid_audio_inputs[] = {
1246         { 0, "TV", V4L2_AUDCAP_STEREO },
1247         { 1, "Line-In", V4L2_AUDCAP_STEREO },
1248 };
1249
1250 int vidioc_enum_input(struct file *file, void *priv,
1251                                 struct v4l2_input *inp)
1252 {
1253         struct vivid_dev *dev = video_drvdata(file);
1254
1255         if (inp->index >= dev->num_inputs)
1256                 return -EINVAL;
1257
1258         inp->type = V4L2_INPUT_TYPE_CAMERA;
1259         switch (dev->input_type[inp->index]) {
1260         case WEBCAM:
1261                 snprintf(inp->name, sizeof(inp->name), "Webcam %u",
1262                                 dev->input_name_counter[inp->index]);
1263                 inp->capabilities = 0;
1264                 break;
1265         case TV:
1266                 snprintf(inp->name, sizeof(inp->name), "TV %u",
1267                                 dev->input_name_counter[inp->index]);
1268                 inp->type = V4L2_INPUT_TYPE_TUNER;
1269                 inp->std = V4L2_STD_ALL;
1270                 if (dev->has_audio_inputs)
1271                         inp->audioset = (1 << ARRAY_SIZE(vivid_audio_inputs)) - 1;
1272                 inp->capabilities = V4L2_IN_CAP_STD;
1273                 break;
1274         case SVID:
1275                 snprintf(inp->name, sizeof(inp->name), "S-Video %u",
1276                                 dev->input_name_counter[inp->index]);
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 HDMI:
1283                 snprintf(inp->name, sizeof(inp->name), "HDMI %u",
1284                                 dev->input_name_counter[inp->index]);
1285                 inp->capabilities = V4L2_IN_CAP_DV_TIMINGS;
1286                 if (dev->edid_blocks == 0 ||
1287                     dev->dv_timings_signal_mode == NO_SIGNAL)
1288                         inp->status |= V4L2_IN_ST_NO_SIGNAL;
1289                 else if (dev->dv_timings_signal_mode == NO_LOCK ||
1290                          dev->dv_timings_signal_mode == OUT_OF_RANGE)
1291                         inp->status |= V4L2_IN_ST_NO_H_LOCK;
1292                 break;
1293         }
1294         if (dev->sensor_hflip)
1295                 inp->status |= V4L2_IN_ST_HFLIP;
1296         if (dev->sensor_vflip)
1297                 inp->status |= V4L2_IN_ST_VFLIP;
1298         if (dev->input == inp->index && vivid_is_sdtv_cap(dev)) {
1299                 if (dev->std_signal_mode == NO_SIGNAL) {
1300                         inp->status |= V4L2_IN_ST_NO_SIGNAL;
1301                 } else if (dev->std_signal_mode == NO_LOCK) {
1302                         inp->status |= V4L2_IN_ST_NO_H_LOCK;
1303                 } else if (vivid_is_tv_cap(dev)) {
1304                         switch (tpg_g_quality(&dev->tpg)) {
1305                         case TPG_QUAL_GRAY:
1306                                 inp->status |= V4L2_IN_ST_COLOR_KILL;
1307                                 break;
1308                         case TPG_QUAL_NOISE:
1309                                 inp->status |= V4L2_IN_ST_NO_H_LOCK;
1310                                 break;
1311                         default:
1312                                 break;
1313                         }
1314                 }
1315         }
1316         return 0;
1317 }
1318
1319 int vidioc_g_input(struct file *file, void *priv, unsigned *i)
1320 {
1321         struct vivid_dev *dev = video_drvdata(file);
1322
1323         *i = dev->input;
1324         return 0;
1325 }
1326
1327 int vidioc_s_input(struct file *file, void *priv, unsigned i)
1328 {
1329         struct vivid_dev *dev = video_drvdata(file);
1330         struct v4l2_bt_timings *bt = &dev->dv_timings_cap.bt;
1331         unsigned brightness;
1332
1333         if (i >= dev->num_inputs)
1334                 return -EINVAL;
1335
1336         if (i == dev->input)
1337                 return 0;
1338
1339         if (vb2_is_busy(&dev->vb_vid_cap_q) || vb2_is_busy(&dev->vb_vbi_cap_q))
1340                 return -EBUSY;
1341
1342         dev->input = i;
1343         dev->vid_cap_dev.tvnorms = 0;
1344         if (dev->input_type[i] == TV || dev->input_type[i] == SVID) {
1345                 dev->tv_audio_input = (dev->input_type[i] == TV) ? 0 : 1;
1346                 dev->vid_cap_dev.tvnorms = V4L2_STD_ALL;
1347         }
1348         dev->vbi_cap_dev.tvnorms = dev->vid_cap_dev.tvnorms;
1349         vivid_update_format_cap(dev, false);
1350
1351         if (dev->colorspace) {
1352                 switch (dev->input_type[i]) {
1353                 case WEBCAM:
1354                         v4l2_ctrl_s_ctrl(dev->colorspace, VIVID_CS_SRGB);
1355                         break;
1356                 case TV:
1357                 case SVID:
1358                         v4l2_ctrl_s_ctrl(dev->colorspace, VIVID_CS_170M);
1359                         break;
1360                 case HDMI:
1361                         if (bt->flags & V4L2_DV_FL_IS_CE_VIDEO) {
1362                                 if (dev->src_rect.width == 720 && dev->src_rect.height <= 576)
1363                                         v4l2_ctrl_s_ctrl(dev->colorspace, VIVID_CS_170M);
1364                                 else
1365                                         v4l2_ctrl_s_ctrl(dev->colorspace, VIVID_CS_709);
1366                         } else {
1367                                 v4l2_ctrl_s_ctrl(dev->colorspace, VIVID_CS_SRGB);
1368                         }
1369                         break;
1370                 }
1371         }
1372
1373         /*
1374          * Modify the brightness range depending on the input.
1375          * This makes it easy to use vivid to test if applications can
1376          * handle control range modifications and is also how this is
1377          * typically used in practice as different inputs may be hooked
1378          * up to different receivers with different control ranges.
1379          */
1380         brightness = 128 * i + dev->input_brightness[i];
1381         v4l2_ctrl_modify_range(dev->brightness,
1382                         128 * i, 255 + 128 * i, 1, 128 + 128 * i);
1383         v4l2_ctrl_s_ctrl(dev->brightness, brightness);
1384         return 0;
1385 }
1386
1387 int vidioc_enumaudio(struct file *file, void *fh, struct v4l2_audio *vin)
1388 {
1389         if (vin->index >= ARRAY_SIZE(vivid_audio_inputs))
1390                 return -EINVAL;
1391         *vin = vivid_audio_inputs[vin->index];
1392         return 0;
1393 }
1394
1395 int vidioc_g_audio(struct file *file, void *fh, struct v4l2_audio *vin)
1396 {
1397         struct vivid_dev *dev = video_drvdata(file);
1398
1399         if (!vivid_is_sdtv_cap(dev))
1400                 return -EINVAL;
1401         *vin = vivid_audio_inputs[dev->tv_audio_input];
1402         return 0;
1403 }
1404
1405 int vidioc_s_audio(struct file *file, void *fh, const struct v4l2_audio *vin)
1406 {
1407         struct vivid_dev *dev = video_drvdata(file);
1408
1409         if (!vivid_is_sdtv_cap(dev))
1410                 return -EINVAL;
1411         if (vin->index >= ARRAY_SIZE(vivid_audio_inputs))
1412                 return -EINVAL;
1413         dev->tv_audio_input = vin->index;
1414         return 0;
1415 }
1416
1417 int vivid_video_g_frequency(struct file *file, void *fh, struct v4l2_frequency *vf)
1418 {
1419         struct vivid_dev *dev = video_drvdata(file);
1420
1421         if (vf->tuner != 0)
1422                 return -EINVAL;
1423         vf->frequency = dev->tv_freq;
1424         return 0;
1425 }
1426
1427 int vivid_video_s_frequency(struct file *file, void *fh, const struct v4l2_frequency *vf)
1428 {
1429         struct vivid_dev *dev = video_drvdata(file);
1430
1431         if (vf->tuner != 0)
1432                 return -EINVAL;
1433         dev->tv_freq = clamp_t(unsigned, vf->frequency, MIN_TV_FREQ, MAX_TV_FREQ);
1434         if (vivid_is_tv_cap(dev))
1435                 vivid_update_quality(dev);
1436         return 0;
1437 }
1438
1439 int vivid_video_s_tuner(struct file *file, void *fh, const struct v4l2_tuner *vt)
1440 {
1441         struct vivid_dev *dev = video_drvdata(file);
1442
1443         if (vt->index != 0)
1444                 return -EINVAL;
1445         if (vt->audmode > V4L2_TUNER_MODE_LANG1_LANG2)
1446                 return -EINVAL;
1447         dev->tv_audmode = vt->audmode;
1448         return 0;
1449 }
1450
1451 int vivid_video_g_tuner(struct file *file, void *fh, struct v4l2_tuner *vt)
1452 {
1453         struct vivid_dev *dev = video_drvdata(file);
1454         enum tpg_quality qual;
1455
1456         if (vt->index != 0)
1457                 return -EINVAL;
1458
1459         vt->capability = V4L2_TUNER_CAP_NORM | V4L2_TUNER_CAP_STEREO |
1460                          V4L2_TUNER_CAP_LANG1 | V4L2_TUNER_CAP_LANG2;
1461         vt->audmode = dev->tv_audmode;
1462         vt->rangelow = MIN_TV_FREQ;
1463         vt->rangehigh = MAX_TV_FREQ;
1464         qual = vivid_get_quality(dev, &vt->afc);
1465         if (qual == TPG_QUAL_COLOR)
1466                 vt->signal = 0xffff;
1467         else if (qual == TPG_QUAL_GRAY)
1468                 vt->signal = 0x8000;
1469         else
1470                 vt->signal = 0;
1471         if (qual == TPG_QUAL_NOISE) {
1472                 vt->rxsubchans = 0;
1473         } else if (qual == TPG_QUAL_GRAY) {
1474                 vt->rxsubchans = V4L2_TUNER_SUB_MONO;
1475         } else {
1476                 unsigned channel_nr = dev->tv_freq / (6 * 16);
1477                 unsigned options = (dev->std_cap & V4L2_STD_NTSC_M) ? 4 : 3;
1478
1479                 switch (channel_nr % options) {
1480                 case 0:
1481                         vt->rxsubchans = V4L2_TUNER_SUB_MONO;
1482                         break;
1483                 case 1:
1484                         vt->rxsubchans = V4L2_TUNER_SUB_STEREO;
1485                         break;
1486                 case 2:
1487                         if (dev->std_cap & V4L2_STD_NTSC_M)
1488                                 vt->rxsubchans = V4L2_TUNER_SUB_MONO | V4L2_TUNER_SUB_SAP;
1489                         else
1490                                 vt->rxsubchans = V4L2_TUNER_SUB_LANG1 | V4L2_TUNER_SUB_LANG2;
1491                         break;
1492                 case 3:
1493                         vt->rxsubchans = V4L2_TUNER_SUB_STEREO | V4L2_TUNER_SUB_SAP;
1494                         break;
1495                 }
1496         }
1497         strlcpy(vt->name, "TV Tuner", sizeof(vt->name));
1498         return 0;
1499 }
1500
1501 /* Must remain in sync with the vivid_ctrl_standard_strings array */
1502 const v4l2_std_id vivid_standard[] = {
1503         V4L2_STD_NTSC_M,
1504         V4L2_STD_NTSC_M_JP,
1505         V4L2_STD_NTSC_M_KR,
1506         V4L2_STD_NTSC_443,
1507         V4L2_STD_PAL_BG | V4L2_STD_PAL_H,
1508         V4L2_STD_PAL_I,
1509         V4L2_STD_PAL_DK,
1510         V4L2_STD_PAL_M,
1511         V4L2_STD_PAL_N,
1512         V4L2_STD_PAL_Nc,
1513         V4L2_STD_PAL_60,
1514         V4L2_STD_SECAM_B | V4L2_STD_SECAM_G | V4L2_STD_SECAM_H,
1515         V4L2_STD_SECAM_DK,
1516         V4L2_STD_SECAM_L,
1517         V4L2_STD_SECAM_LC,
1518         V4L2_STD_UNKNOWN
1519 };
1520
1521 /* Must remain in sync with the vivid_standard array */
1522 const char * const vivid_ctrl_standard_strings[] = {
1523         "NTSC-M",
1524         "NTSC-M-JP",
1525         "NTSC-M-KR",
1526         "NTSC-443",
1527         "PAL-BGH",
1528         "PAL-I",
1529         "PAL-DK",
1530         "PAL-M",
1531         "PAL-N",
1532         "PAL-Nc",
1533         "PAL-60",
1534         "SECAM-BGH",
1535         "SECAM-DK",
1536         "SECAM-L",
1537         "SECAM-Lc",
1538         NULL,
1539 };
1540
1541 int vidioc_querystd(struct file *file, void *priv, v4l2_std_id *id)
1542 {
1543         struct vivid_dev *dev = video_drvdata(file);
1544
1545         if (!vivid_is_sdtv_cap(dev))
1546                 return -ENODATA;
1547         if (dev->std_signal_mode == NO_SIGNAL ||
1548             dev->std_signal_mode == NO_LOCK) {
1549                 *id = V4L2_STD_UNKNOWN;
1550                 return 0;
1551         }
1552         if (vivid_is_tv_cap(dev) && tpg_g_quality(&dev->tpg) == TPG_QUAL_NOISE) {
1553                 *id = V4L2_STD_UNKNOWN;
1554         } else if (dev->std_signal_mode == CURRENT_STD) {
1555                 *id = dev->std_cap;
1556         } else if (dev->std_signal_mode == SELECTED_STD) {
1557                 *id = dev->query_std;
1558         } else {
1559                 *id = vivid_standard[dev->query_std_last];
1560                 dev->query_std_last = (dev->query_std_last + 1) % ARRAY_SIZE(vivid_standard);
1561         }
1562
1563         return 0;
1564 }
1565
1566 int vivid_vid_cap_s_std(struct file *file, void *priv, v4l2_std_id id)
1567 {
1568         struct vivid_dev *dev = video_drvdata(file);
1569
1570         if (!vivid_is_sdtv_cap(dev))
1571                 return -ENODATA;
1572         if (dev->std_cap == id)
1573                 return 0;
1574         if (vb2_is_busy(&dev->vb_vid_cap_q) || vb2_is_busy(&dev->vb_vbi_cap_q))
1575                 return -EBUSY;
1576         dev->std_cap = id;
1577         vivid_update_format_cap(dev, false);
1578         return 0;
1579 }
1580
1581 static void find_aspect_ratio(u32 width, u32 height,
1582                                u32 *num, u32 *denom)
1583 {
1584         if (!(height % 3) && ((height * 4 / 3) == width)) {
1585                 *num = 4;
1586                 *denom = 3;
1587         } else if (!(height % 9) && ((height * 16 / 9) == width)) {
1588                 *num = 16;
1589                 *denom = 9;
1590         } else if (!(height % 10) && ((height * 16 / 10) == width)) {
1591                 *num = 16;
1592                 *denom = 10;
1593         } else if (!(height % 4) && ((height * 5 / 4) == width)) {
1594                 *num = 5;
1595                 *denom = 4;
1596         } else if (!(height % 9) && ((height * 15 / 9) == width)) {
1597                 *num = 15;
1598                 *denom = 9;
1599         } else { /* default to 16:9 */
1600                 *num = 16;
1601                 *denom = 9;
1602         }
1603 }
1604
1605 static bool valid_cvt_gtf_timings(struct v4l2_dv_timings *timings)
1606 {
1607         struct v4l2_bt_timings *bt = &timings->bt;
1608         u32 total_h_pixel;
1609         u32 total_v_lines;
1610         u32 h_freq;
1611
1612         if (!v4l2_valid_dv_timings(timings, &vivid_dv_timings_cap,
1613                                 NULL, NULL))
1614                 return false;
1615
1616         total_h_pixel = V4L2_DV_BT_FRAME_WIDTH(bt);
1617         total_v_lines = V4L2_DV_BT_FRAME_HEIGHT(bt);
1618
1619         h_freq = (u32)bt->pixelclock / total_h_pixel;
1620
1621         if (bt->standards == 0 || (bt->standards & V4L2_DV_BT_STD_CVT)) {
1622                 if (v4l2_detect_cvt(total_v_lines, h_freq, bt->vsync,
1623                                     bt->polarities, timings))
1624                         return true;
1625         }
1626
1627         if (bt->standards == 0 || (bt->standards & V4L2_DV_BT_STD_GTF)) {
1628                 struct v4l2_fract aspect_ratio;
1629
1630                 find_aspect_ratio(bt->width, bt->height,
1631                                   &aspect_ratio.numerator,
1632                                   &aspect_ratio.denominator);
1633                 if (v4l2_detect_gtf(total_v_lines, h_freq, bt->vsync,
1634                                     bt->polarities, aspect_ratio, timings))
1635                         return true;
1636         }
1637         return false;
1638 }
1639
1640 int vivid_vid_cap_s_dv_timings(struct file *file, void *_fh,
1641                                     struct v4l2_dv_timings *timings)
1642 {
1643         struct vivid_dev *dev = video_drvdata(file);
1644
1645         if (!vivid_is_hdmi_cap(dev))
1646                 return -ENODATA;
1647         if (!v4l2_find_dv_timings_cap(timings, &vivid_dv_timings_cap,
1648                                       0, NULL, NULL) &&
1649             !valid_cvt_gtf_timings(timings))
1650                 return -EINVAL;
1651
1652         if (v4l2_match_dv_timings(timings, &dev->dv_timings_cap, 0))
1653                 return 0;
1654         if (vb2_is_busy(&dev->vb_vid_cap_q))
1655                 return -EBUSY;
1656
1657         dev->dv_timings_cap = *timings;
1658         vivid_update_format_cap(dev, false);
1659         return 0;
1660 }
1661
1662 int vidioc_query_dv_timings(struct file *file, void *_fh,
1663                                     struct v4l2_dv_timings *timings)
1664 {
1665         struct vivid_dev *dev = video_drvdata(file);
1666
1667         if (!vivid_is_hdmi_cap(dev))
1668                 return -ENODATA;
1669         if (dev->dv_timings_signal_mode == NO_SIGNAL ||
1670             dev->edid_blocks == 0)
1671                 return -ENOLINK;
1672         if (dev->dv_timings_signal_mode == NO_LOCK)
1673                 return -ENOLCK;
1674         if (dev->dv_timings_signal_mode == OUT_OF_RANGE) {
1675                 timings->bt.pixelclock = vivid_dv_timings_cap.bt.max_pixelclock * 2;
1676                 return -ERANGE;
1677         }
1678         if (dev->dv_timings_signal_mode == CURRENT_DV_TIMINGS) {
1679                 *timings = dev->dv_timings_cap;
1680         } else if (dev->dv_timings_signal_mode == SELECTED_DV_TIMINGS) {
1681                 *timings = v4l2_dv_timings_presets[dev->query_dv_timings];
1682         } else {
1683                 *timings = v4l2_dv_timings_presets[dev->query_dv_timings_last];
1684                 dev->query_dv_timings_last = (dev->query_dv_timings_last + 1) %
1685                                                 dev->query_dv_timings_size;
1686         }
1687         return 0;
1688 }
1689
1690 int vidioc_s_edid(struct file *file, void *_fh,
1691                          struct v4l2_edid *edid)
1692 {
1693         struct vivid_dev *dev = video_drvdata(file);
1694
1695         memset(edid->reserved, 0, sizeof(edid->reserved));
1696         if (edid->pad >= dev->num_inputs)
1697                 return -EINVAL;
1698         if (dev->input_type[edid->pad] != HDMI || edid->start_block)
1699                 return -EINVAL;
1700         if (edid->blocks == 0) {
1701                 dev->edid_blocks = 0;
1702                 return 0;
1703         }
1704         if (edid->blocks > dev->edid_max_blocks) {
1705                 edid->blocks = dev->edid_max_blocks;
1706                 return -E2BIG;
1707         }
1708         dev->edid_blocks = edid->blocks;
1709         memcpy(dev->edid, edid->edid, edid->blocks * 128);
1710         return 0;
1711 }
1712
1713 int vidioc_enum_framesizes(struct file *file, void *fh,
1714                                          struct v4l2_frmsizeenum *fsize)
1715 {
1716         struct vivid_dev *dev = video_drvdata(file);
1717
1718         if (!vivid_is_webcam(dev) && !dev->has_scaler_cap)
1719                 return -EINVAL;
1720         if (vivid_get_format(dev, fsize->pixel_format) == NULL)
1721                 return -EINVAL;
1722         if (vivid_is_webcam(dev)) {
1723                 if (fsize->index >= ARRAY_SIZE(webcam_sizes))
1724                         return -EINVAL;
1725                 fsize->type = V4L2_FRMSIZE_TYPE_DISCRETE;
1726                 fsize->discrete = webcam_sizes[fsize->index];
1727                 return 0;
1728         }
1729         if (fsize->index)
1730                 return -EINVAL;
1731         fsize->type = V4L2_FRMSIZE_TYPE_STEPWISE;
1732         fsize->stepwise.min_width = MIN_WIDTH;
1733         fsize->stepwise.max_width = MAX_WIDTH * MAX_ZOOM;
1734         fsize->stepwise.step_width = 2;
1735         fsize->stepwise.min_height = MIN_HEIGHT;
1736         fsize->stepwise.max_height = MAX_HEIGHT * MAX_ZOOM;
1737         fsize->stepwise.step_height = 2;
1738         return 0;
1739 }
1740
1741 /* timeperframe is arbitrary and continuous */
1742 int vidioc_enum_frameintervals(struct file *file, void *priv,
1743                                              struct v4l2_frmivalenum *fival)
1744 {
1745         struct vivid_dev *dev = video_drvdata(file);
1746         const struct vivid_fmt *fmt;
1747         int i;
1748
1749         fmt = vivid_get_format(dev, fival->pixel_format);
1750         if (!fmt)
1751                 return -EINVAL;
1752
1753         if (!vivid_is_webcam(dev)) {
1754                 if (fival->index)
1755                         return -EINVAL;
1756                 if (fival->width < MIN_WIDTH || fival->width > MAX_WIDTH * MAX_ZOOM)
1757                         return -EINVAL;
1758                 if (fival->height < MIN_HEIGHT || fival->height > MAX_HEIGHT * MAX_ZOOM)
1759                         return -EINVAL;
1760                 fival->type = V4L2_FRMIVAL_TYPE_DISCRETE;
1761                 fival->discrete = dev->timeperframe_vid_cap;
1762                 return 0;
1763         }
1764
1765         for (i = 0; i < ARRAY_SIZE(webcam_sizes); i++)
1766                 if (fival->width == webcam_sizes[i].width &&
1767                     fival->height == webcam_sizes[i].height)
1768                         break;
1769         if (i == ARRAY_SIZE(webcam_sizes))
1770                 return -EINVAL;
1771         if (fival->index >= 2 * (3 - i))
1772                 return -EINVAL;
1773         fival->type = V4L2_FRMIVAL_TYPE_DISCRETE;
1774         fival->discrete = webcam_intervals[fival->index];
1775         return 0;
1776 }
1777
1778 int vivid_vid_cap_g_parm(struct file *file, void *priv,
1779                           struct v4l2_streamparm *parm)
1780 {
1781         struct vivid_dev *dev = video_drvdata(file);
1782
1783         if (parm->type != (dev->multiplanar ?
1784                            V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE :
1785                            V4L2_BUF_TYPE_VIDEO_CAPTURE))
1786                 return -EINVAL;
1787
1788         parm->parm.capture.capability   = V4L2_CAP_TIMEPERFRAME;
1789         parm->parm.capture.timeperframe = dev->timeperframe_vid_cap;
1790         parm->parm.capture.readbuffers  = 1;
1791         return 0;
1792 }
1793
1794 #define FRACT_CMP(a, OP, b)     \
1795         ((u64)(a).numerator * (b).denominator  OP  (u64)(b).numerator * (a).denominator)
1796
1797 int vivid_vid_cap_s_parm(struct file *file, void *priv,
1798                           struct v4l2_streamparm *parm)
1799 {
1800         struct vivid_dev *dev = video_drvdata(file);
1801         unsigned ival_sz = 2 * (3 - dev->webcam_size_idx);
1802         struct v4l2_fract tpf;
1803         unsigned i;
1804
1805         if (parm->type != (dev->multiplanar ?
1806                            V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE :
1807                            V4L2_BUF_TYPE_VIDEO_CAPTURE))
1808                 return -EINVAL;
1809         if (!vivid_is_webcam(dev))
1810                 return vivid_vid_cap_g_parm(file, priv, parm);
1811
1812         tpf = parm->parm.capture.timeperframe;
1813
1814         if (tpf.denominator == 0)
1815                 tpf = webcam_intervals[ival_sz - 1];
1816         for (i = 0; i < ival_sz; i++)
1817                 if (FRACT_CMP(tpf, >=, webcam_intervals[i]))
1818                         break;
1819         if (i == ival_sz)
1820                 i = ival_sz - 1;
1821         dev->webcam_ival_idx = i;
1822         tpf = webcam_intervals[dev->webcam_ival_idx];
1823         tpf = FRACT_CMP(tpf, <, tpf_min) ? tpf_min : tpf;
1824         tpf = FRACT_CMP(tpf, >, tpf_max) ? tpf_max : tpf;
1825
1826         /* resync the thread's timings */
1827         dev->cap_seq_resync = true;
1828         dev->timeperframe_vid_cap = tpf;
1829         parm->parm.capture.timeperframe = tpf;
1830         parm->parm.capture.readbuffers  = 1;
1831         return 0;
1832 }