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

   1 /*
   2  * vivid-vid-cap.c - video capture support functions.
   3  *
   4  * Copyright 2014 Cisco Systems, Inc. and/or its affiliates. All rights reserved.
   5  *
   6  * This program is free software; you may redistribute it and/or modify
   7  * it under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation; version 2 of the License.
   9  *
  10  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  11  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  12  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  13  * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
  14  * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
  15  * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  16  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  17  * SOFTWARE.
  18  */
  19
  20 #include <linux/errno.h>
  21 #include <linux/kernel.h>
  22 #include <linux/sched.h>
  23 #include <linux/vmalloc.h>
  24 #include <linux/videodev2.h>
  25 #include <linux/v4l2-dv-timings.h>
  26 #include <media/v4l2-common.h>
  27 #include <media/v4l2-event.h>
  28 #include <media/v4l2-dv-timings.h>
  29 #include <media/v4l2-rect.h>
  30
  31 #include "vivid-core.h"
  32 #include "vivid-vid-common.h"
  33 #include "vivid-kthread-cap.h"
  34 #include "vivid-vid-cap.h"
  35
  36 /* timeperframe: min/max and default */
  37 static const struct v4l2_fract
  38         tpf_min     = {.numerator = 1,          .denominator = FPS_MAX},
  39         tpf_max     = {.numerator = FPS_MAX,    .denominator = 1};
  40
  41 static const struct vivid_fmt formats_ovl[] = {
  42         {
  43                 .fourcc   = V4L2_PIX_FMT_RGB565, /* gggbbbbb rrrrrggg */
  44                 .vdownsampling = { 1 },
  45                 .bit_depth = { 16 },
  46                 .planes   = 1,
  47                 .buffers = 1,
  48         },
  49         {
  50                 .fourcc   = V4L2_PIX_FMT_XRGB555, /* gggbbbbb arrrrrgg */
  51                 .vdownsampling = { 1 },
  52                 .bit_depth = { 16 },
  53                 .planes   = 1,
  54                 .buffers = 1,
  55         },
  56         {
  57                 .fourcc   = V4L2_PIX_FMT_ARGB555, /* gggbbbbb arrrrrgg */
  58                 .vdownsampling = { 1 },
  59                 .bit_depth = { 16 },
  60                 .planes   = 1,
  61                 .buffers = 1,
  62         },
  63 };
  64
  65 /* The number of discrete webcam framesizes */
  66 #define VIVID_WEBCAM_SIZES 5
  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         { 3840, 2160 },
  77 };
  78
  79 /*
  80  * Intervals must be in increasing order and there must be twice as many
  81  * elements in this array as there are in webcam_sizes.
  82  */
  83 static const struct v4l2_fract webcam_intervals[VIVID_WEBCAM_IVALS] = {
  84         {  1, 1 },
  85         {  1, 2 },
  86         {  1, 4 },
  87         {  1, 5 },
  88         {  1, 10 },
  89         {  1, 15 },
  90         {  1, 25 },
  91         {  1, 30 },
  92         {  1, 50 },
  93         {  1, 60 },
  94 };
  95
  96 static const struct v4l2_discrete_probe webcam_probe = {
  97         webcam_sizes,
  98         VIVID_WEBCAM_SIZES
  99 };
 100
 101 static int vid_cap_queue_setup(struct vb2_queue *vq,
 102                        unsigned *nbuffers, unsigned *nplanes,
 103                        unsigned sizes[], struct device *alloc_devs[])
 104 {
 105         struct vivid_dev *dev = vb2_get_drv_priv(vq);
 106         unsigned buffers = tpg_g_buffers(&dev->tpg);
 107         unsigned h = dev->fmt_cap_rect.height;
 108         unsigned p;
 109
 110         if (dev->field_cap == V4L2_FIELD_ALTERNATE) {
 111                 /*
 112                  * You cannot use read() with FIELD_ALTERNATE since the field
 113                  * information (TOP/BOTTOM) cannot be passed back to the user.
 114                  */
 115                 if (vb2_fileio_is_active(vq))
 116                         return -EINVAL;
 117         }
 118
 119         if (dev->queue_setup_error) {
 120                 /*
 121                  * Error injection: test what happens if queue_setup() returns
 122                  * an error.
 123                  */
 124                 dev->queue_setup_error = false;
 125                 return -EINVAL;
 126         }
 127         if (*nplanes) {
 128                 /*
 129                  * Check if the number of requested planes match
 130                  * the number of buffers in the current format. You can't mix that.
 131                  */
 132                 if (*nplanes != buffers)
 133                         return -EINVAL;
 134                 for (p = 0; p < buffers; p++) {
 135                         if (sizes[p] < tpg_g_line_width(&dev->tpg, p) * h +
 136                                                 dev->fmt_cap->data_offset[p])
 137                                 return -EINVAL;
 138                 }
 139         } else {
 140                 for (p = 0; p < buffers; p++)
 141                         sizes[p] = tpg_g_line_width(&dev->tpg, p) * h +
 142                                         dev->fmt_cap->data_offset[p];
 143         }
 144
 145         if (vq->num_buffers + *nbuffers < 2)
 146                 *nbuffers = 2 - vq->num_buffers;
 147
 148         *nplanes = buffers;
 149
 150         dprintk(dev, 1, "%s: count=%d\n", __func__, *nbuffers);
 151         for (p = 0; p < buffers; p++)
 152                 dprintk(dev, 1, "%s: size[%u]=%u\n", __func__, p, sizes[p]);
 153
 154         return 0;
 155 }
 156
 157 static int vid_cap_buf_prepare(struct vb2_buffer *vb)
 158 {
 159         struct vivid_dev *dev = vb2_get_drv_priv(vb->vb2_queue);
 160         unsigned long size;
 161         unsigned buffers = tpg_g_buffers(&dev->tpg);
 162         unsigned p;
 163
 164         dprintk(dev, 1, "%s\n", __func__);
 165
 166         if (WARN_ON(NULL == dev->fmt_cap))
 167                 return -EINVAL;
 168
 169         if (dev->buf_prepare_error) {
 170                 /*
 171                  * Error injection: test what happens if buf_prepare() returns
 172                  * an error.
 173                  */
 174                 dev->buf_prepare_error = false;
 175                 return -EINVAL;
 176         }
 177         for (p = 0; p < buffers; p++) {
 178                 size = tpg_g_line_width(&dev->tpg, p) * dev->fmt_cap_rect.height +
 179                         dev->fmt_cap->data_offset[p];
 180
 181                 if (vb2_plane_size(vb, p) < size) {
 182                         dprintk(dev, 1, "%s data will not fit into plane %u (%lu < %lu)\n",
 183                                         __func__, p, vb2_plane_size(vb, p), size);
 184                         return -EINVAL;
 185                 }
 186
 187                 vb2_set_plane_payload(vb, p, size);
 188                 vb->planes[p].data_offset = dev->fmt_cap->data_offset[p];
 189         }
 190
 191         return 0;
 192 }
 193
 194 static void vid_cap_buf_finish(struct vb2_buffer *vb)
 195 {
 196         struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
 197         struct vivid_dev *dev = vb2_get_drv_priv(vb->vb2_queue);
 198         struct v4l2_timecode *tc = &vbuf->timecode;
 199         unsigned fps = 25;
 200         unsigned seq = vbuf->sequence;
 201
 202         if (!vivid_is_sdtv_cap(dev))
 203                 return;
 204
 205         /*
 206          * Set the timecode. Rarely used, so it is interesting to
 207          * test this.
 208          */
 209         vbuf->flags |= V4L2_BUF_FLAG_TIMECODE;
 210         if (dev->std_cap & V4L2_STD_525_60)
 211                 fps = 30;
 212         tc->type = (fps == 30) ? V4L2_TC_TYPE_30FPS : V4L2_TC_TYPE_25FPS;
 213         tc->flags = 0;
 214         tc->frames = seq % fps;
 215         tc->seconds = (seq / fps) % 60;
 216         tc->minutes = (seq / (60 * fps)) % 60;
 217         tc->hours = (seq / (60 * 60 * fps)) % 24;
 218 }
 219
 220 static void vid_cap_buf_queue(struct vb2_buffer *vb)
 221 {
 222         struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
 223         struct vivid_dev *dev = vb2_get_drv_priv(vb->vb2_queue);
 224         struct vivid_buffer *buf = container_of(vbuf, struct vivid_buffer, vb);
 225
 226         dprintk(dev, 1, "%s\n", __func__);
 227
 228         spin_lock(&dev->slock);
 229         list_add_tail(&buf->list, &dev->vid_cap_active);
 230         spin_unlock(&dev->slock);
 231 }
 232
 233 static int vid_cap_start_streaming(struct vb2_queue *vq, unsigned count)
 234 {
 235         struct vivid_dev *dev = vb2_get_drv_priv(vq);
 236         unsigned i;
 237         int err;
 238
 239         if (vb2_is_streaming(&dev->vb_vid_out_q))
 240                 dev->can_loop_video = vivid_vid_can_loop(dev);
 241
 242         dev->vid_cap_seq_count = 0;
 243         dprintk(dev, 1, "%s\n", __func__);
 244         for (i = 0; i < VIDEO_MAX_FRAME; i++)
 245                 dev->must_blank[i] = tpg_g_perc_fill(&dev->tpg) < 100;
 246         if (dev->start_streaming_error) {
 247                 dev->start_streaming_error = false;
 248                 err = -EINVAL;
 249         } else {
 250                 err = vivid_start_generating_vid_cap(dev, &dev->vid_cap_streaming);
 251         }
 252         if (err) {
 253                 struct vivid_buffer *buf, *tmp;
 254
 255                 list_for_each_entry_safe(buf, tmp, &dev->vid_cap_active, list) {
 256                         list_del(&buf->list);
 257                         vb2_buffer_done(&buf->vb.vb2_buf,
 258                                         VB2_BUF_STATE_QUEUED);
 259                 }
 260         }
 261         return err;
 262 }
 263
 264 /* abort streaming and wait for last buffer */
 265 static void vid_cap_stop_streaming(struct vb2_queue *vq)
 266 {
 267         struct vivid_dev *dev = vb2_get_drv_priv(vq);
 268
 269         dprintk(dev, 1, "%s\n", __func__);
 270         vivid_stop_generating_vid_cap(dev, &dev->vid_cap_streaming);
 271         dev->can_loop_video = false;
 272 }
 273
 274 const struct vb2_ops vivid_vid_cap_qops = {
 275         .queue_setup            = vid_cap_queue_setup,
 276         .buf_prepare            = vid_cap_buf_prepare,
 277         .buf_finish             = vid_cap_buf_finish,
 278         .buf_queue              = vid_cap_buf_queue,
 279         .start_streaming        = vid_cap_start_streaming,
 280         .stop_streaming         = vid_cap_stop_streaming,
 281         .wait_prepare           = vb2_ops_wait_prepare,
 282         .wait_finish            = vb2_ops_wait_finish,
 283 };
 284
 285 /*
 286  * Determine the 'picture' quality based on the current TV frequency: either
 287  * COLOR for a good 'signal', GRAY (grayscale picture) for a slightly off
 288  * signal or NOISE for no signal.
 289  */
 290 void vivid_update_quality(struct vivid_dev *dev)
 291 {
 292         unsigned freq_modulus;
 293
 294         if (dev->loop_video && (vivid_is_svid_cap(dev) || vivid_is_hdmi_cap(dev))) {
 295                 /*
 296                  * The 'noise' will only be replaced by the actual video
 297                  * if the output video matches the input video settings.
 298                  */
 299                 tpg_s_quality(&dev->tpg, TPG_QUAL_NOISE, 0);
 300                 return;
 301         }
 302         if (vivid_is_hdmi_cap(dev) && VIVID_INVALID_SIGNAL(dev->dv_timings_signal_mode)) {
 303                 tpg_s_quality(&dev->tpg, TPG_QUAL_NOISE, 0);
 304                 return;
 305         }
 306         if (vivid_is_sdtv_cap(dev) && VIVID_INVALID_SIGNAL(dev->std_signal_mode)) {
 307                 tpg_s_quality(&dev->tpg, TPG_QUAL_NOISE, 0);
 308                 return;
 309         }
 310         if (!vivid_is_tv_cap(dev)) {
 311                 tpg_s_quality(&dev->tpg, TPG_QUAL_COLOR, 0);
 312                 return;
 313         }
 314
 315         /*
 316          * There is a fake channel every 6 MHz at 49.25, 55.25, etc.
 317          * From +/- 0.25 MHz around the channel there is color, and from
 318          * +/- 1 MHz there is grayscale (chroma is lost).
 319          * Everywhere else it is just noise.
 320          */
 321         freq_modulus = (dev->tv_freq - 676 /* (43.25-1) * 16 */) % (6 * 16);
 322         if (freq_modulus > 2 * 16) {
 323                 tpg_s_quality(&dev->tpg, TPG_QUAL_NOISE,
 324                         next_pseudo_random32(dev->tv_freq ^ 0x55) & 0x3f);
 325                 return;
 326         }
 327         if (freq_modulus < 12 /*0.75 * 16*/ || freq_modulus > 20 /*1.25 * 16*/)
 328                 tpg_s_quality(&dev->tpg, TPG_QUAL_GRAY, 0);
 329         else
 330                 tpg_s_quality(&dev->tpg, TPG_QUAL_COLOR, 0);
 331 }
 332
 333 /*
 334  * Get the current picture quality and the associated afc value.
 335  */
 336 static enum tpg_quality vivid_get_quality(struct vivid_dev *dev, s32 *afc)
 337 {
 338         unsigned freq_modulus;
 339
 340         if (afc)
 341                 *afc = 0;
 342         if (tpg_g_quality(&dev->tpg) == TPG_QUAL_COLOR ||
 343             tpg_g_quality(&dev->tpg) == TPG_QUAL_NOISE)
 344                 return tpg_g_quality(&dev->tpg);
 345
 346         /*
 347          * There is a fake channel every 6 MHz at 49.25, 55.25, etc.
 348          * From +/- 0.25 MHz around the channel there is color, and from
 349          * +/- 1 MHz there is grayscale (chroma is lost).
 350          * Everywhere else it is just gray.
 351          */
 352         freq_modulus = (dev->tv_freq - 676 /* (43.25-1) * 16 */) % (6 * 16);
 353         if (afc)
 354                 *afc = freq_modulus - 1 * 16;
 355         return TPG_QUAL_GRAY;
 356 }
 357
 358 enum tpg_video_aspect vivid_get_video_aspect(const struct vivid_dev *dev)
 359 {
 360         if (vivid_is_sdtv_cap(dev))
 361                 return dev->std_aspect_ratio;
 362
 363         if (vivid_is_hdmi_cap(dev))
 364                 return dev->dv_timings_aspect_ratio;
 365
 366         return TPG_VIDEO_ASPECT_IMAGE;
 367 }
 368
 369 static enum tpg_pixel_aspect vivid_get_pixel_aspect(const struct vivid_dev *dev)
 370 {
 371         if (vivid_is_sdtv_cap(dev))
 372                 return (dev->std_cap & V4L2_STD_525_60) ?
 373                         TPG_PIXEL_ASPECT_NTSC : TPG_PIXEL_ASPECT_PAL;
 374
 375         if (vivid_is_hdmi_cap(dev) &&
 376             dev->src_rect.width == 720 && dev->src_rect.height <= 576)
 377                 return dev->src_rect.height == 480 ?
 378                         TPG_PIXEL_ASPECT_NTSC : TPG_PIXEL_ASPECT_PAL;
 379
 380         return TPG_PIXEL_ASPECT_SQUARE;
 381 }
 382
 383 /*
 384  * Called whenever the format has to be reset which can occur when
 385  * changing inputs, standard, timings, etc.
 386  */
 387 void vivid_update_format_cap(struct vivid_dev *dev, bool keep_controls)
 388 {
 389         struct v4l2_bt_timings *bt = &dev->dv_timings_cap.bt;
 390         unsigned size;
 391         u64 pixelclock;
 392
 393         switch (dev->input_type[dev->input]) {
 394         case WEBCAM:
 395         default:
 396                 dev->src_rect.width = webcam_sizes[dev->webcam_size_idx].width;
 397                 dev->src_rect.height = webcam_sizes[dev->webcam_size_idx].height;
 398                 dev->timeperframe_vid_cap = webcam_intervals[dev->webcam_ival_idx];
 399                 dev->field_cap = V4L2_FIELD_NONE;
 400                 tpg_s_rgb_range(&dev->tpg, V4L2_DV_RGB_RANGE_AUTO);
 401                 break;
 402         case TV:
 403         case SVID:
 404                 dev->field_cap = dev->tv_field_cap;
 405                 dev->src_rect.width = 720;
 406                 if (dev->std_cap & V4L2_STD_525_60) {
 407                         dev->src_rect.height = 480;
 408                         dev->timeperframe_vid_cap = (struct v4l2_fract) { 1001, 30000 };
 409                         dev->service_set_cap = V4L2_SLICED_CAPTION_525;
 410                 } else {
 411                         dev->src_rect.height = 576;
 412                         dev->timeperframe_vid_cap = (struct v4l2_fract) { 1000, 25000 };
 413                         dev->service_set_cap = V4L2_SLICED_WSS_625 | V4L2_SLICED_TELETEXT_B;
 414                 }
 415                 tpg_s_rgb_range(&dev->tpg, V4L2_DV_RGB_RANGE_AUTO);
 416                 break;
 417         case HDMI:
 418                 dev->src_rect.width = bt->width;
 419                 dev->src_rect.height = bt->height;
 420                 size = V4L2_DV_BT_FRAME_WIDTH(bt) * V4L2_DV_BT_FRAME_HEIGHT(bt);
 421                 if (dev->reduced_fps && can_reduce_fps(bt)) {
 422                         pixelclock = div_u64(bt->pixelclock * 1000, 1001);
 423                         bt->flags |= V4L2_DV_FL_REDUCED_FPS;
 424                 } else {
 425                         pixelclock = bt->pixelclock;
 426                         bt->flags &= ~V4L2_DV_FL_REDUCED_FPS;
 427                 }
 428                 dev->timeperframe_vid_cap = (struct v4l2_fract) {
 429                         size / 100, (u32)pixelclock / 100
 430                 };
 431                 if (bt->interlaced)
 432                         dev->field_cap = V4L2_FIELD_ALTERNATE;
 433                 else
 434                         dev->field_cap = V4L2_FIELD_NONE;
 435
 436                 /*
 437                  * We can be called from within s_ctrl, in that case we can't
 438                  * set/get controls. Luckily we don't need to in that case.
 439                  */
 440                 if (keep_controls || !dev->colorspace)
 441                         break;
 442                 if (bt->flags & V4L2_DV_FL_IS_CE_VIDEO) {
 443                         if (bt->width == 720 && bt->height <= 576)
 444                                 v4l2_ctrl_s_ctrl(dev->colorspace, VIVID_CS_170M);
 445                         else
 446                                 v4l2_ctrl_s_ctrl(dev->colorspace, VIVID_CS_709);
 447                         v4l2_ctrl_s_ctrl(dev->real_rgb_range_cap, 1);
 448                 } else {
 449                         v4l2_ctrl_s_ctrl(dev->colorspace, VIVID_CS_SRGB);
 450                         v4l2_ctrl_s_ctrl(dev->real_rgb_range_cap, 0);
 451                 }
 452                 tpg_s_rgb_range(&dev->tpg, v4l2_ctrl_g_ctrl(dev->rgb_range_cap));
 453                 break;
 454         }
 455         vfree(dev->bitmap_cap);
 456         dev->bitmap_cap = NULL;
 457         vivid_update_quality(dev);
 458         tpg_reset_source(&dev->tpg, dev->src_rect.width, dev->src_rect.height, dev->field_cap);
 459         dev->crop_cap = dev->src_rect;
 460         dev->crop_bounds_cap = dev->src_rect;
 461         dev->compose_cap = dev->crop_cap;
 462         if (V4L2_FIELD_HAS_T_OR_B(dev->field_cap))
 463                 dev->compose_cap.height /= 2;
 464         dev->fmt_cap_rect = dev->compose_cap;
 465         tpg_s_video_aspect(&dev->tpg, vivid_get_video_aspect(dev));
 466         tpg_s_pixel_aspect(&dev->tpg, vivid_get_pixel_aspect(dev));
 467         tpg_update_mv_step(&dev->tpg);
 468 }
 469
 470 /* Map the field to something that is valid for the current input */
 471 static enum v4l2_field vivid_field_cap(struct vivid_dev *dev, enum v4l2_field field)
 472 {
 473         if (vivid_is_sdtv_cap(dev)) {
 474                 switch (field) {
 475                 case V4L2_FIELD_INTERLACED_TB:
 476                 case V4L2_FIELD_INTERLACED_BT:
 477                 case V4L2_FIELD_SEQ_TB:
 478                 case V4L2_FIELD_SEQ_BT:
 479                 case V4L2_FIELD_TOP:
 480                 case V4L2_FIELD_BOTTOM:
 481                 case V4L2_FIELD_ALTERNATE:
 482                         return field;
 483                 case V4L2_FIELD_INTERLACED:
 484                 default:
 485                         return V4L2_FIELD_INTERLACED;
 486                 }
 487         }
 488         if (vivid_is_hdmi_cap(dev))
 489                 return dev->dv_timings_cap.bt.interlaced ? V4L2_FIELD_ALTERNATE :
 490                                                        V4L2_FIELD_NONE;
 491         return V4L2_FIELD_NONE;
 492 }
 493
 494 static unsigned vivid_colorspace_cap(struct vivid_dev *dev)
 495 {
 496         if (!dev->loop_video || vivid_is_webcam(dev) || vivid_is_tv_cap(dev))
 497                 return tpg_g_colorspace(&dev->tpg);
 498         return dev->colorspace_out;
 499 }
 500
 501 static unsigned vivid_xfer_func_cap(struct vivid_dev *dev)
 502 {
 503         if (!dev->loop_video || vivid_is_webcam(dev) || vivid_is_tv_cap(dev))
 504                 return tpg_g_xfer_func(&dev->tpg);
 505         return dev->xfer_func_out;
 506 }
 507
 508 static unsigned vivid_ycbcr_enc_cap(struct vivid_dev *dev)
 509 {
 510         if (!dev->loop_video || vivid_is_webcam(dev) || vivid_is_tv_cap(dev))
 511                 return tpg_g_ycbcr_enc(&dev->tpg);
 512         return dev->ycbcr_enc_out;
 513 }
 514
 515 static unsigned int vivid_hsv_enc_cap(struct vivid_dev *dev)
 516 {
 517         if (!dev->loop_video || vivid_is_webcam(dev) || vivid_is_tv_cap(dev))
 518                 return tpg_g_hsv_enc(&dev->tpg);
 519         return dev->hsv_enc_out;
 520 }
 521
 522 static unsigned vivid_quantization_cap(struct vivid_dev *dev)
 523 {
 524         if (!dev->loop_video || vivid_is_webcam(dev) || vivid_is_tv_cap(dev))
 525                 return tpg_g_quantization(&dev->tpg);
 526         return dev->quantization_out;
 527 }
 528
 529 int vivid_g_fmt_vid_cap(struct file *file, void *priv,
 530                                         struct v4l2_format *f)
 531 {
 532         struct vivid_dev *dev = video_drvdata(file);
 533         struct v4l2_pix_format_mplane *mp = &f->fmt.pix_mp;
 534         unsigned p;
 535
 536         mp->width        = dev->fmt_cap_rect.width;
 537         mp->height       = dev->fmt_cap_rect.height;
 538         mp->field        = dev->field_cap;
 539         mp->pixelformat  = dev->fmt_cap->fourcc;
 540         mp->colorspace   = vivid_colorspace_cap(dev);
 541         mp->xfer_func    = vivid_xfer_func_cap(dev);
 542         if (dev->fmt_cap->color_enc == TGP_COLOR_ENC_HSV)
 543                 mp->hsv_enc    = vivid_hsv_enc_cap(dev);
 544         else
 545                 mp->ycbcr_enc    = vivid_ycbcr_enc_cap(dev);
 546         mp->quantization = vivid_quantization_cap(dev);
 547         mp->num_planes = dev->fmt_cap->buffers;
 548         for (p = 0; p < mp->num_planes; p++) {
 549                 mp->plane_fmt[p].bytesperline = tpg_g_bytesperline(&dev->tpg, p);
 550                 mp->plane_fmt[p].sizeimage =
 551                         tpg_g_line_width(&dev->tpg, p) * mp->height +
 552                         dev->fmt_cap->data_offset[p];
 553         }
 554         return 0;
 555 }
 556
 557 int vivid_try_fmt_vid_cap(struct file *file, void *priv,
 558                         struct v4l2_format *f)
 559 {
 560         struct v4l2_pix_format_mplane *mp = &f->fmt.pix_mp;
 561         struct v4l2_plane_pix_format *pfmt = mp->plane_fmt;
 562         struct vivid_dev *dev = video_drvdata(file);
 563         const struct vivid_fmt *fmt;
 564         unsigned bytesperline, max_bpl;
 565         unsigned factor = 1;
 566         unsigned w, h;
 567         unsigned p;
 568
 569         fmt = vivid_get_format(dev, mp->pixelformat);
 570         if (!fmt) {
 571                 dprintk(dev, 1, "Fourcc format (0x%08x) unknown.\n",
 572                         mp->pixelformat);
 573                 mp->pixelformat = V4L2_PIX_FMT_YUYV;
 574                 fmt = vivid_get_format(dev, mp->pixelformat);
 575         }
 576
 577         mp->field = vivid_field_cap(dev, mp->field);
 578         if (vivid_is_webcam(dev)) {
 579                 const struct v4l2_frmsize_discrete *sz =
 580                         v4l2_find_nearest_format(&webcam_probe, mp->width, mp->height);
 581
 582                 w = sz->width;
 583                 h = sz->height;
 584         } else if (vivid_is_sdtv_cap(dev)) {
 585                 w = 720;
 586                 h = (dev->std_cap & V4L2_STD_525_60) ? 480 : 576;
 587         } else {
 588                 w = dev->src_rect.width;
 589                 h = dev->src_rect.height;
 590         }
 591         if (V4L2_FIELD_HAS_T_OR_B(mp->field))
 592                 factor = 2;
 593         if (vivid_is_webcam(dev) ||
 594             (!dev->has_scaler_cap && !dev->has_crop_cap && !dev->has_compose_cap)) {
 595                 mp->width = w;
 596                 mp->height = h / factor;
 597         } else {
 598                 struct v4l2_rect r = { 0, 0, mp->width, mp->height * factor };
 599
 600                 v4l2_rect_set_min_size(&r, &vivid_min_rect);
 601                 v4l2_rect_set_max_size(&r, &vivid_max_rect);
 602                 if (dev->has_scaler_cap && !dev->has_compose_cap) {
 603                         struct v4l2_rect max_r = { 0, 0, MAX_ZOOM * w, MAX_ZOOM * h };
 604
 605                         v4l2_rect_set_max_size(&r, &max_r);
 606                 } else if (!dev->has_scaler_cap && dev->has_crop_cap && !dev->has_compose_cap) {
 607                         v4l2_rect_set_max_size(&r, &dev->src_rect);
 608                 } else if (!dev->has_scaler_cap && !dev->has_crop_cap) {
 609                         v4l2_rect_set_min_size(&r, &dev->src_rect);
 610                 }
 611                 mp->width = r.width;
 612                 mp->height = r.height / factor;
 613         }
 614
 615         /* This driver supports custom bytesperline values */
 616
 617         mp->num_planes = fmt->buffers;
 618         for (p = 0; p < fmt->buffers; p++) {
 619                 /* Calculate the minimum supported bytesperline value */
 620                 bytesperline = (mp->width * fmt->bit_depth[p]) >> 3;
 621                 /* Calculate the maximum supported bytesperline value */
 622                 max_bpl = (MAX_ZOOM * MAX_WIDTH * fmt->bit_depth[p]) >> 3;
 623
 624                 if (pfmt[p].bytesperline > max_bpl)
 625                         pfmt[p].bytesperline = max_bpl;
 626                 if (pfmt[p].bytesperline < bytesperline)
 627                         pfmt[p].bytesperline = bytesperline;
 628
 629                 pfmt[p].sizeimage = (pfmt[p].bytesperline * mp->height) /
 630                                 fmt->vdownsampling[p] + fmt->data_offset[p];
 631
 632                 memset(pfmt[p].reserved, 0, sizeof(pfmt[p].reserved));
 633         }
 634         for (p = fmt->buffers; p < fmt->planes; p++)
 635                 pfmt[0].sizeimage += (pfmt[0].bytesperline * mp->height *
 636                         (fmt->bit_depth[p] / fmt->vdownsampling[p])) /
 637                         (fmt->bit_depth[0] / fmt->vdownsampling[0]);
 638
 639         mp->colorspace = vivid_colorspace_cap(dev);
 640         if (fmt->color_enc == TGP_COLOR_ENC_HSV)
 641                 mp->hsv_enc = vivid_hsv_enc_cap(dev);
 642         else
 643                 mp->ycbcr_enc = vivid_ycbcr_enc_cap(dev);
 644         mp->xfer_func = vivid_xfer_func_cap(dev);
 645         mp->quantization = vivid_quantization_cap(dev);
 646         memset(mp->reserved, 0, sizeof(mp->reserved));
 647         return 0;
 648 }
 649
 650 int vivid_s_fmt_vid_cap(struct file *file, void *priv,
 651                                         struct v4l2_format *f)
 652 {
 653         struct v4l2_pix_format_mplane *mp = &f->fmt.pix_mp;
 654         struct vivid_dev *dev = video_drvdata(file);
 655         struct v4l2_rect *crop = &dev->crop_cap;
 656         struct v4l2_rect *compose = &dev->compose_cap;
 657         struct vb2_queue *q = &dev->vb_vid_cap_q;
 658         int ret = vivid_try_fmt_vid_cap(file, priv, f);
 659         unsigned factor = 1;
 660         unsigned p;
 661         unsigned i;
 662
 663         if (ret < 0)
 664                 return ret;
 665
 666         if (vb2_is_busy(q)) {
 667                 dprintk(dev, 1, "%s device busy\n", __func__);
 668                 return -EBUSY;
 669         }
 670
 671         if (dev->overlay_cap_owner && dev->fb_cap.fmt.pixelformat != mp->pixelformat) {
 672                 dprintk(dev, 1, "overlay is active, can't change pixelformat\n");
 673                 return -EBUSY;
 674         }
 675
 676         dev->fmt_cap = vivid_get_format(dev, mp->pixelformat);
 677         if (V4L2_FIELD_HAS_T_OR_B(mp->field))
 678                 factor = 2;
 679
 680         /* Note: the webcam input doesn't support scaling, cropping or composing */
 681
 682         if (!vivid_is_webcam(dev) &&
 683             (dev->has_scaler_cap || dev->has_crop_cap || dev->has_compose_cap)) {
 684                 struct v4l2_rect r = { 0, 0, mp->width, mp->height };
 685
 686                 if (dev->has_scaler_cap) {
 687                         if (dev->has_compose_cap)
 688                                 v4l2_rect_map_inside(compose, &r);
 689                         else
 690                                 *compose = r;
 691                         if (dev->has_crop_cap && !dev->has_compose_cap) {
 692                                 struct v4l2_rect min_r = {
 693                                         0, 0,
 694                                         r.width / MAX_ZOOM,
 695                                         factor * r.height / MAX_ZOOM
 696                                 };
 697                                 struct v4l2_rect max_r = {
 698                                         0, 0,
 699                                         r.width * MAX_ZOOM,
 700                                         factor * r.height * MAX_ZOOM
 701                                 };
 702
 703                                 v4l2_rect_set_min_size(crop, &min_r);
 704                                 v4l2_rect_set_max_size(crop, &max_r);
 705                                 v4l2_rect_map_inside(crop, &dev->crop_bounds_cap);
 706                         } else if (dev->has_crop_cap) {
 707                                 struct v4l2_rect min_r = {
 708                                         0, 0,
 709                                         compose->width / MAX_ZOOM,
 710                                         factor * compose->height / MAX_ZOOM
 711                                 };
 712                                 struct v4l2_rect max_r = {
 713                                         0, 0,
 714                                         compose->width * MAX_ZOOM,
 715                                         factor * compose->height * MAX_ZOOM
 716                                 };
 717
 718                                 v4l2_rect_set_min_size(crop, &min_r);
 719                                 v4l2_rect_set_max_size(crop, &max_r);
 720                                 v4l2_rect_map_inside(crop, &dev->crop_bounds_cap);
 721                         }
 722                 } else if (dev->has_crop_cap && !dev->has_compose_cap) {
 723                         r.height *= factor;
 724                         v4l2_rect_set_size_to(crop, &r);
 725                         v4l2_rect_map_inside(crop, &dev->crop_bounds_cap);
 726                         r = *crop;
 727                         r.height /= factor;
 728                         v4l2_rect_set_size_to(compose, &r);
 729                 } else if (!dev->has_crop_cap) {
 730                         v4l2_rect_map_inside(compose, &r);
 731                 } else {
 732                         r.height *= factor;
 733                         v4l2_rect_set_max_size(crop, &r);
 734                         v4l2_rect_map_inside(crop, &dev->crop_bounds_cap);
 735                         compose->top *= factor;
 736                         compose->height *= factor;
 737                         v4l2_rect_set_size_to(compose, crop);
 738                         v4l2_rect_map_inside(compose, &r);
 739                         compose->top /= factor;
 740                         compose->height /= factor;
 741                 }
 742         } else if (vivid_is_webcam(dev)) {
 743                 /* Guaranteed to be a match */
 744                 for (i = 0; i < ARRAY_SIZE(webcam_sizes); i++)
 745                         if (webcam_sizes[i].width == mp->width &&
 746                                         webcam_sizes[i].height == mp->height)
 747                                 break;
 748                 dev->webcam_size_idx = i;
 749                 if (dev->webcam_ival_idx >= 2 * (VIVID_WEBCAM_SIZES - i))
 750                         dev->webcam_ival_idx = 2 * (VIVID_WEBCAM_SIZES - i) - 1;
 751                 vivid_update_format_cap(dev, false);
 752         } else {
 753                 struct v4l2_rect r = { 0, 0, mp->width, mp->height };
 754
 755                 v4l2_rect_set_size_to(compose, &r);
 756                 r.height *= factor;
 757                 v4l2_rect_set_size_to(crop, &r);
 758         }
 759
 760         dev->fmt_cap_rect.width = mp->width;
 761         dev->fmt_cap_rect.height = mp->height;
 762         tpg_s_buf_height(&dev->tpg, mp->height);
 763         tpg_s_fourcc(&dev->tpg, dev->fmt_cap->fourcc);
 764         for (p = 0; p < tpg_g_buffers(&dev->tpg); p++)
 765                 tpg_s_bytesperline(&dev->tpg, p, mp->plane_fmt[p].bytesperline);
 766         dev->field_cap = mp->field;
 767         if (dev->field_cap == V4L2_FIELD_ALTERNATE)
 768                 tpg_s_field(&dev->tpg, V4L2_FIELD_TOP, true);
 769         else
 770                 tpg_s_field(&dev->tpg, dev->field_cap, false);
 771         tpg_s_crop_compose(&dev->tpg, &dev->crop_cap, &dev->compose_cap);
 772         if (vivid_is_sdtv_cap(dev))
 773                 dev->tv_field_cap = mp->field;
 774         tpg_update_mv_step(&dev->tpg);
 775         return 0;
 776 }
 777
 778 int vidioc_g_fmt_vid_cap_mplane(struct file *file, void *priv,
 779                                         struct v4l2_format *f)
 780 {
 781         struct vivid_dev *dev = video_drvdata(file);
 782
 783         if (!dev->multiplanar)
 784                 return -ENOTTY;
 785         return vivid_g_fmt_vid_cap(file, priv, f);
 786 }
 787
 788 int vidioc_try_fmt_vid_cap_mplane(struct file *file, void *priv,
 789                         struct v4l2_format *f)
 790 {
 791         struct vivid_dev *dev = video_drvdata(file);
 792
 793         if (!dev->multiplanar)
 794                 return -ENOTTY;
 795         return vivid_try_fmt_vid_cap(file, priv, f);
 796 }
 797
 798 int vidioc_s_fmt_vid_cap_mplane(struct file *file, void *priv,
 799                         struct v4l2_format *f)
 800 {
 801         struct vivid_dev *dev = video_drvdata(file);
 802
 803         if (!dev->multiplanar)
 804                 return -ENOTTY;
 805         return vivid_s_fmt_vid_cap(file, priv, f);
 806 }
 807
 808 int vidioc_g_fmt_vid_cap(struct file *file, void *priv,
 809                                         struct v4l2_format *f)
 810 {
 811         struct vivid_dev *dev = video_drvdata(file);
 812
 813         if (dev->multiplanar)
 814                 return -ENOTTY;
 815         return fmt_sp2mp_func(file, priv, f, vivid_g_fmt_vid_cap);
 816 }
 817
 818 int vidioc_try_fmt_vid_cap(struct file *file, void *priv,
 819                         struct v4l2_format *f)
 820 {
 821         struct vivid_dev *dev = video_drvdata(file);
 822
 823         if (dev->multiplanar)
 824                 return -ENOTTY;
 825         return fmt_sp2mp_func(file, priv, f, vivid_try_fmt_vid_cap);
 826 }
 827
 828 int vidioc_s_fmt_vid_cap(struct file *file, void *priv,
 829                         struct v4l2_format *f)
 830 {
 831         struct vivid_dev *dev = video_drvdata(file);
 832
 833         if (dev->multiplanar)
 834                 return -ENOTTY;
 835         return fmt_sp2mp_func(file, priv, f, vivid_s_fmt_vid_cap);
 836 }
 837
 838 int vivid_vid_cap_g_selection(struct file *file, void *priv,
 839                               struct v4l2_selection *sel)
 840 {
 841         struct vivid_dev *dev = video_drvdata(file);
 842
 843         if (!dev->has_crop_cap && !dev->has_compose_cap)
 844                 return -ENOTTY;
 845         if (sel->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
 846                 return -EINVAL;
 847         if (vivid_is_webcam(dev))
 848                 return -ENODATA;
 849
 850         sel->r.left = sel->r.top = 0;
 851         switch (sel->target) {
 852         case V4L2_SEL_TGT_CROP:
 853                 if (!dev->has_crop_cap)
 854                         return -EINVAL;
 855                 sel->r = dev->crop_cap;
 856                 break;
 857         case V4L2_SEL_TGT_CROP_DEFAULT:
 858         case V4L2_SEL_TGT_CROP_BOUNDS:
 859                 if (!dev->has_crop_cap)
 860                         return -EINVAL;
 861                 sel->r = dev->src_rect;
 862                 break;
 863         case V4L2_SEL_TGT_COMPOSE_BOUNDS:
 864                 if (!dev->has_compose_cap)
 865                         return -EINVAL;
 866                 sel->r = vivid_max_rect;
 867                 break;
 868         case V4L2_SEL_TGT_COMPOSE:
 869                 if (!dev->has_compose_cap)
 870                         return -EINVAL;
 871                 sel->r = dev->compose_cap;
 872                 break;
 873         case V4L2_SEL_TGT_COMPOSE_DEFAULT:
 874                 if (!dev->has_compose_cap)
 875                         return -EINVAL;
 876                 sel->r = dev->fmt_cap_rect;
 877                 break;
 878         default:
 879                 return -EINVAL;
 880         }
 881         return 0;
 882 }
 883
 884 int vivid_vid_cap_s_selection(struct file *file, void *fh, struct v4l2_selection *s)
 885 {
 886         struct vivid_dev *dev = video_drvdata(file);
 887         struct v4l2_rect *crop = &dev->crop_cap;
 888         struct v4l2_rect *compose = &dev->compose_cap;
 889         unsigned factor = V4L2_FIELD_HAS_T_OR_B(dev->field_cap) ? 2 : 1;
 890         int ret;
 891
 892         if (!dev->has_crop_cap && !dev->has_compose_cap)
 893                 return -ENOTTY;
 894         if (s->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
 895                 return -EINVAL;
 896         if (vivid_is_webcam(dev))
 897                 return -ENODATA;
 898
 899         switch (s->target) {
 900         case V4L2_SEL_TGT_CROP:
 901                 if (!dev->has_crop_cap)
 902                         return -EINVAL;
 903                 ret = vivid_vid_adjust_sel(s->flags, &s->r);
 904                 if (ret)
 905                         return ret;
 906                 v4l2_rect_set_min_size(&s->r, &vivid_min_rect);
 907                 v4l2_rect_set_max_size(&s->r, &dev->src_rect);
 908                 v4l2_rect_map_inside(&s->r, &dev->crop_bounds_cap);
 909                 s->r.top /= factor;
 910                 s->r.height /= factor;
 911                 if (dev->has_scaler_cap) {
 912                         struct v4l2_rect fmt = dev->fmt_cap_rect;
 913                         struct v4l2_rect max_rect = {
 914                                 0, 0,
 915                                 s->r.width * MAX_ZOOM,
 916                                 s->r.height * MAX_ZOOM
 917                         };
 918                         struct v4l2_rect min_rect = {
 919                                 0, 0,
 920                                 s->r.width / MAX_ZOOM,
 921                                 s->r.height / MAX_ZOOM
 922                         };
 923
 924                         v4l2_rect_set_min_size(&fmt, &min_rect);
 925                         if (!dev->has_compose_cap)
 926                                 v4l2_rect_set_max_size(&fmt, &max_rect);
 927                         if (!v4l2_rect_same_size(&dev->fmt_cap_rect, &fmt) &&
 928                             vb2_is_busy(&dev->vb_vid_cap_q))
 929                                 return -EBUSY;
 930                         if (dev->has_compose_cap) {
 931                                 v4l2_rect_set_min_size(compose, &min_rect);
 932                                 v4l2_rect_set_max_size(compose, &max_rect);
 933                         }
 934                         dev->fmt_cap_rect = fmt;
 935                         tpg_s_buf_height(&dev->tpg, fmt.height);
 936                 } else if (dev->has_compose_cap) {
 937                         struct v4l2_rect fmt = dev->fmt_cap_rect;
 938
 939                         v4l2_rect_set_min_size(&fmt, &s->r);
 940                         if (!v4l2_rect_same_size(&dev->fmt_cap_rect, &fmt) &&
 941                             vb2_is_busy(&dev->vb_vid_cap_q))
 942                                 return -EBUSY;
 943                         dev->fmt_cap_rect = fmt;
 944                         tpg_s_buf_height(&dev->tpg, fmt.height);
 945                         v4l2_rect_set_size_to(compose, &s->r);
 946                         v4l2_rect_map_inside(compose, &dev->fmt_cap_rect);
 947                 } else {
 948                         if (!v4l2_rect_same_size(&s->r, &dev->fmt_cap_rect) &&
 949                             vb2_is_busy(&dev->vb_vid_cap_q))
 950                                 return -EBUSY;
 951                         v4l2_rect_set_size_to(&dev->fmt_cap_rect, &s->r);
 952                         v4l2_rect_set_size_to(compose, &s->r);
 953                         v4l2_rect_map_inside(compose, &dev->fmt_cap_rect);
 954                         tpg_s_buf_height(&dev->tpg, dev->fmt_cap_rect.height);
 955                 }
 956                 s->r.top *= factor;
 957                 s->r.height *= factor;
 958                 *crop = s->r;
 959                 break;
 960         case V4L2_SEL_TGT_COMPOSE:
 961                 if (!dev->has_compose_cap)
 962                         return -EINVAL;
 963                 ret = vivid_vid_adjust_sel(s->flags, &s->r);
 964                 if (ret)
 965                         return ret;
 966                 v4l2_rect_set_min_size(&s->r, &vivid_min_rect);
 967                 v4l2_rect_set_max_size(&s->r, &dev->fmt_cap_rect);
 968                 if (dev->has_scaler_cap) {
 969                         struct v4l2_rect max_rect = {
 970                                 0, 0,
 971                                 dev->src_rect.width * MAX_ZOOM,
 972                                 (dev->src_rect.height / factor) * MAX_ZOOM
 973                         };
 974
 975                         v4l2_rect_set_max_size(&s->r, &max_rect);
 976                         if (dev->has_crop_cap) {
 977                                 struct v4l2_rect min_rect = {
 978                                         0, 0,
 979                                         s->r.width / MAX_ZOOM,
 980                                         (s->r.height * factor) / MAX_ZOOM
 981                                 };
 982                                 struct v4l2_rect max_rect = {
 983                                         0, 0,
 984                                         s->r.width * MAX_ZOOM,
 985                                         (s->r.height * factor) * MAX_ZOOM
 986                                 };
 987
 988                                 v4l2_rect_set_min_size(crop, &min_rect);
 989                                 v4l2_rect_set_max_size(crop, &max_rect);
 990                                 v4l2_rect_map_inside(crop, &dev->crop_bounds_cap);
 991                         }
 992                 } else if (dev->has_crop_cap) {
 993                         s->r.top *= factor;
 994                         s->r.height *= factor;
 995                         v4l2_rect_set_max_size(&s->r, &dev->src_rect);
 996                         v4l2_rect_set_size_to(crop, &s->r);
 997                         v4l2_rect_map_inside(crop, &dev->crop_bounds_cap);
 998                         s->r.top /= factor;
 999                         s->r.height /= factor;
1000                 } else {
1001                         v4l2_rect_set_size_to(&s->r, &dev->src_rect);
1002                         s->r.height /= factor;
1003                 }
1004                 v4l2_rect_map_inside(&s->r, &dev->fmt_cap_rect);
1005                 if (dev->bitmap_cap && (compose->width != s->r.width ||
1006                                         compose->height != s->r.height)) {
1007                         vfree(dev->bitmap_cap);
1008                         dev->bitmap_cap = NULL;
1009                 }
1010                 *compose = s->r;
1011                 break;
1012         default:
1013                 return -EINVAL;
1014         }
1015
1016         tpg_s_crop_compose(&dev->tpg, crop, compose);
1017         return 0;
1018 }
1019
1020 int vivid_vid_cap_cropcap(struct file *file, void *priv,
1021                               struct v4l2_cropcap *cap)
1022 {
1023         struct vivid_dev *dev = video_drvdata(file);
1024
1025         if (cap->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
1026                 return -EINVAL;
1027
1028         switch (vivid_get_pixel_aspect(dev)) {
1029         case TPG_PIXEL_ASPECT_NTSC:
1030                 cap->pixelaspect.numerator = 11;
1031                 cap->pixelaspect.denominator = 10;
1032                 break;
1033         case TPG_PIXEL_ASPECT_PAL:
1034                 cap->pixelaspect.numerator = 54;
1035                 cap->pixelaspect.denominator = 59;
1036                 break;
1037         case TPG_PIXEL_ASPECT_SQUARE:
1038                 cap->pixelaspect.numerator = 1;
1039                 cap->pixelaspect.denominator = 1;
1040                 break;
1041         }
1042         return 0;
1043 }
1044
1045 int vidioc_enum_fmt_vid_overlay(struct file *file, void  *priv,
1046                                         struct v4l2_fmtdesc *f)
1047 {
1048         struct vivid_dev *dev = video_drvdata(file);
1049         const struct vivid_fmt *fmt;
1050
1051         if (dev->multiplanar)
1052                 return -ENOTTY;
1053
1054         if (f->index >= ARRAY_SIZE(formats_ovl))
1055                 return -EINVAL;
1056
1057         fmt = &formats_ovl[f->index];
1058
1059         f->pixelformat = fmt->fourcc;
1060         return 0;
1061 }
1062
1063 int vidioc_g_fmt_vid_overlay(struct file *file, void *priv,
1064                                         struct v4l2_format *f)
1065 {
1066         struct vivid_dev *dev = video_drvdata(file);
1067         const struct v4l2_rect *compose = &dev->compose_cap;
1068         struct v4l2_window *win = &f->fmt.win;
1069         unsigned clipcount = win->clipcount;
1070
1071         if (dev->multiplanar)
1072                 return -ENOTTY;
1073
1074         win->w.top = dev->overlay_cap_top;
1075         win->w.left = dev->overlay_cap_left;
1076         win->w.width = compose->width;
1077         win->w.height = compose->height;
1078         win->field = dev->overlay_cap_field;
1079         win->clipcount = dev->clipcount_cap;
1080         if (clipcount > dev->clipcount_cap)
1081                 clipcount = dev->clipcount_cap;
1082         if (dev->bitmap_cap == NULL)
1083                 win->bitmap = NULL;
1084         else if (win->bitmap) {
1085                 if (copy_to_user(win->bitmap, dev->bitmap_cap,
1086                     ((compose->width + 7) / 8) * compose->height))
1087                         return -EFAULT;
1088         }
1089         if (clipcount && win->clips) {
1090                 if (copy_to_user(win->clips, dev->clips_cap,
1091                                  clipcount * sizeof(dev->clips_cap[0])))
1092                         return -EFAULT;
1093         }
1094         return 0;
1095 }
1096
1097 int vidioc_try_fmt_vid_overlay(struct file *file, void *priv,
1098                                         struct v4l2_format *f)
1099 {
1100         struct vivid_dev *dev = video_drvdata(file);
1101         const struct v4l2_rect *compose = &dev->compose_cap;
1102         struct v4l2_window *win = &f->fmt.win;
1103         int i, j;
1104
1105         if (dev->multiplanar)
1106                 return -ENOTTY;
1107
1108         win->w.left = clamp_t(int, win->w.left,
1109                               -dev->fb_cap.fmt.width, dev->fb_cap.fmt.width);
1110         win->w.top = clamp_t(int, win->w.top,
1111                              -dev->fb_cap.fmt.height, dev->fb_cap.fmt.height);
1112         win->w.width = compose->width;
1113         win->w.height = compose->height;
1114         if (win->field != V4L2_FIELD_BOTTOM && win->field != V4L2_FIELD_TOP)
1115                 win->field = V4L2_FIELD_ANY;
1116         win->chromakey = 0;
1117         win->global_alpha = 0;
1118         if (win->clipcount && !win->clips)
1119                 win->clipcount = 0;
1120         if (win->clipcount > MAX_CLIPS)
1121                 win->clipcount = MAX_CLIPS;
1122         if (win->clipcount) {
1123                 if (copy_from_user(dev->try_clips_cap, win->clips,
1124                                    win->clipcount * sizeof(dev->clips_cap[0])))
1125                         return -EFAULT;
1126                 for (i = 0; i < win->clipcount; i++) {
1127                         struct v4l2_rect *r = &dev->try_clips_cap[i].c;
1128
1129                         r->top = clamp_t(s32, r->top, 0, dev->fb_cap.fmt.height - 1);
1130                         r->height = clamp_t(s32, r->height, 1, dev->fb_cap.fmt.height - r->top);
1131                         r->left = clamp_t(u32, r->left, 0, dev->fb_cap.fmt.width - 1);
1132                         r->width = clamp_t(u32, r->width, 1, dev->fb_cap.fmt.width - r->left);
1133                 }
1134                 /*
1135                  * Yeah, so sue me, it's an O(n^2) algorithm. But n is a small
1136                  * number and it's typically a one-time deal.
1137                  */
1138                 for (i = 0; i < win->clipcount - 1; i++) {
1139                         struct v4l2_rect *r1 = &dev->try_clips_cap[i].c;
1140
1141                         for (j = i + 1; j < win->clipcount; j++) {
1142                                 struct v4l2_rect *r2 = &dev->try_clips_cap[j].c;
1143
1144                                 if (v4l2_rect_overlap(r1, r2))
1145                                         return -EINVAL;
1146                         }
1147                 }
1148                 if (copy_to_user(win->clips, dev->try_clips_cap,
1149                                  win->clipcount * sizeof(dev->clips_cap[0])))
1150                         return -EFAULT;
1151         }
1152         return 0;
1153 }
1154
1155 int vidioc_s_fmt_vid_overlay(struct file *file, void *priv,
1156                                         struct v4l2_format *f)
1157 {
1158         struct vivid_dev *dev = video_drvdata(file);
1159         const struct v4l2_rect *compose = &dev->compose_cap;
1160         struct v4l2_window *win = &f->fmt.win;
1161         int ret = vidioc_try_fmt_vid_overlay(file, priv, f);
1162         unsigned bitmap_size = ((compose->width + 7) / 8) * compose->height;
1163         unsigned clips_size = win->clipcount * sizeof(dev->clips_cap[0]);
1164         void *new_bitmap = NULL;
1165
1166         if (ret)
1167                 return ret;
1168
1169         if (win->bitmap) {
1170                 new_bitmap = vzalloc(bitmap_size);
1171
1172                 if (new_bitmap == NULL)
1173                         return -ENOMEM;
1174                 if (copy_from_user(new_bitmap, win->bitmap, bitmap_size)) {
1175                         vfree(new_bitmap);
1176                         return -EFAULT;
1177                 }
1178         }
1179
1180         dev->overlay_cap_top = win->w.top;
1181         dev->overlay_cap_left = win->w.left;
1182         dev->overlay_cap_field = win->field;
1183         vfree(dev->bitmap_cap);
1184         dev->bitmap_cap = new_bitmap;
1185         dev->clipcount_cap = win->clipcount;
1186         if (dev->clipcount_cap)
1187                 memcpy(dev->clips_cap, dev->try_clips_cap, clips_size);
1188         return 0;
1189 }
1190
1191 int vivid_vid_cap_overlay(struct file *file, void *fh, unsigned i)
1192 {
1193         struct vivid_dev *dev = video_drvdata(file);
1194
1195         if (dev->multiplanar)
1196                 return -ENOTTY;
1197
1198         if (i && dev->fb_vbase_cap == NULL)
1199                 return -EINVAL;
1200
1201         if (i && dev->fb_cap.fmt.pixelformat != dev->fmt_cap->fourcc) {
1202                 dprintk(dev, 1, "mismatch between overlay and video capture pixelformats\n");
1203                 return -EINVAL;
1204         }
1205
1206         if (dev->overlay_cap_owner && dev->overlay_cap_owner != fh)
1207                 return -EBUSY;
1208         dev->overlay_cap_owner = i ? fh : NULL;
1209         return 0;
1210 }
1211
1212 int vivid_vid_cap_g_fbuf(struct file *file, void *fh,
1213                                 struct v4l2_framebuffer *a)
1214 {
1215         struct vivid_dev *dev = video_drvdata(file);
1216
1217         if (dev->multiplanar)
1218                 return -ENOTTY;
1219
1220         *a = dev->fb_cap;
1221         a->capability = V4L2_FBUF_CAP_BITMAP_CLIPPING |
1222                         V4L2_FBUF_CAP_LIST_CLIPPING;
1223         a->flags = V4L2_FBUF_FLAG_PRIMARY;
1224         a->fmt.field = V4L2_FIELD_NONE;
1225         a->fmt.colorspace = V4L2_COLORSPACE_SRGB;
1226         a->fmt.priv = 0;
1227         return 0;
1228 }
1229
1230 int vivid_vid_cap_s_fbuf(struct file *file, void *fh,
1231                                 const struct v4l2_framebuffer *a)
1232 {
1233         struct vivid_dev *dev = video_drvdata(file);
1234         const struct vivid_fmt *fmt;
1235
1236         if (dev->multiplanar)
1237                 return -ENOTTY;
1238
1239         if (!capable(CAP_SYS_ADMIN) && !capable(CAP_SYS_RAWIO))
1240                 return -EPERM;
1241
1242         if (dev->overlay_cap_owner)
1243                 return -EBUSY;
1244
1245         if (a->base == NULL) {
1246                 dev->fb_cap.base = NULL;
1247                 dev->fb_vbase_cap = NULL;
1248                 return 0;
1249         }
1250
1251         if (a->fmt.width < 48 || a->fmt.height < 32)
1252                 return -EINVAL;
1253         fmt = vivid_get_format(dev, a->fmt.pixelformat);
1254         if (!fmt || !fmt->can_do_overlay)
1255                 return -EINVAL;
1256         if (a->fmt.bytesperline < (a->fmt.width * fmt->bit_depth[0]) / 8)
1257                 return -EINVAL;
1258         if (a->fmt.height * a->fmt.bytesperline < a->fmt.sizeimage)
1259                 return -EINVAL;
1260
1261         dev->fb_vbase_cap = phys_to_virt((unsigned long)a->base);
1262         dev->fb_cap = *a;
1263         dev->overlay_cap_left = clamp_t(int, dev->overlay_cap_left,
1264                                     -dev->fb_cap.fmt.width, dev->fb_cap.fmt.width);
1265         dev->overlay_cap_top = clamp_t(int, dev->overlay_cap_top,
1266                                    -dev->fb_cap.fmt.height, dev->fb_cap.fmt.height);
1267         return 0;
1268 }
1269
1270 static const struct v4l2_audio vivid_audio_inputs[] = {
1271         { 0, "TV", V4L2_AUDCAP_STEREO },
1272         { 1, "Line-In", V4L2_AUDCAP_STEREO },
1273 };
1274
1275 int vidioc_enum_input(struct file *file, void *priv,
1276                                 struct v4l2_input *inp)
1277 {
1278         struct vivid_dev *dev = video_drvdata(file);
1279
1280         if (inp->index >= dev->num_inputs)
1281                 return -EINVAL;
1282
1283         inp->type = V4L2_INPUT_TYPE_CAMERA;
1284         switch (dev->input_type[inp->index]) {
1285         case WEBCAM:
1286                 snprintf(inp->name, sizeof(inp->name), "Webcam %u",
1287                                 dev->input_name_counter[inp->index]);
1288                 inp->capabilities = 0;
1289                 break;
1290         case TV:
1291                 snprintf(inp->name, sizeof(inp->name), "TV %u",
1292                                 dev->input_name_counter[inp->index]);
1293                 inp->type = V4L2_INPUT_TYPE_TUNER;
1294                 inp->std = V4L2_STD_ALL;
1295                 if (dev->has_audio_inputs)
1296                         inp->audioset = (1 << ARRAY_SIZE(vivid_audio_inputs)) - 1;
1297                 inp->capabilities = V4L2_IN_CAP_STD;
1298                 break;
1299         case SVID:
1300                 snprintf(inp->name, sizeof(inp->name), "S-Video %u",
1301                                 dev->input_name_counter[inp->index]);
1302                 inp->std = V4L2_STD_ALL;
1303                 if (dev->has_audio_inputs)
1304                         inp->audioset = (1 << ARRAY_SIZE(vivid_audio_inputs)) - 1;
1305                 inp->capabilities = V4L2_IN_CAP_STD;
1306                 break;
1307         case HDMI:
1308                 snprintf(inp->name, sizeof(inp->name), "HDMI %u",
1309                                 dev->input_name_counter[inp->index]);
1310                 inp->capabilities = V4L2_IN_CAP_DV_TIMINGS;
1311                 if (dev->edid_blocks == 0 ||
1312                     dev->dv_timings_signal_mode == NO_SIGNAL)
1313                         inp->status |= V4L2_IN_ST_NO_SIGNAL;
1314                 else if (dev->dv_timings_signal_mode == NO_LOCK ||
1315                          dev->dv_timings_signal_mode == OUT_OF_RANGE)
1316                         inp->status |= V4L2_IN_ST_NO_H_LOCK;
1317                 break;
1318         }
1319         if (dev->sensor_hflip)
1320                 inp->status |= V4L2_IN_ST_HFLIP;
1321         if (dev->sensor_vflip)
1322                 inp->status |= V4L2_IN_ST_VFLIP;
1323         if (dev->input == inp->index && vivid_is_sdtv_cap(dev)) {
1324                 if (dev->std_signal_mode == NO_SIGNAL) {
1325                         inp->status |= V4L2_IN_ST_NO_SIGNAL;
1326                 } else if (dev->std_signal_mode == NO_LOCK) {
1327                         inp->status |= V4L2_IN_ST_NO_H_LOCK;
1328                 } else if (vivid_is_tv_cap(dev)) {
1329                         switch (tpg_g_quality(&dev->tpg)) {
1330                         case TPG_QUAL_GRAY:
1331                                 inp->status |= V4L2_IN_ST_COLOR_KILL;
1332                                 break;
1333                         case TPG_QUAL_NOISE:
1334                                 inp->status |= V4L2_IN_ST_NO_H_LOCK;
1335                                 break;
1336                         default:
1337                                 break;
1338                         }
1339                 }
1340         }
1341         return 0;
1342 }
1343
1344 int vidioc_g_input(struct file *file, void *priv, unsigned *i)
1345 {
1346         struct vivid_dev *dev = video_drvdata(file);
1347
1348         *i = dev->input;
1349         return 0;
1350 }
1351
1352 int vidioc_s_input(struct file *file, void *priv, unsigned i)
1353 {
1354         struct vivid_dev *dev = video_drvdata(file);
1355         struct v4l2_bt_timings *bt = &dev->dv_timings_cap.bt;
1356         unsigned brightness;
1357
1358         if (i >= dev->num_inputs)
1359                 return -EINVAL;
1360
1361         if (i == dev->input)
1362                 return 0;
1363
1364         if (vb2_is_busy(&dev->vb_vid_cap_q) || vb2_is_busy(&dev->vb_vbi_cap_q))
1365                 return -EBUSY;
1366
1367         dev->input = i;
1368         dev->vid_cap_dev.tvnorms = 0;
1369         if (dev->input_type[i] == TV || dev->input_type[i] == SVID) {
1370                 dev->tv_audio_input = (dev->input_type[i] == TV) ? 0 : 1;
1371                 dev->vid_cap_dev.tvnorms = V4L2_STD_ALL;
1372         }
1373         dev->vbi_cap_dev.tvnorms = dev->vid_cap_dev.tvnorms;
1374         vivid_update_format_cap(dev, false);
1375
1376         if (dev->colorspace) {
1377                 switch (dev->input_type[i]) {
1378                 case WEBCAM:
1379                         v4l2_ctrl_s_ctrl(dev->colorspace, VIVID_CS_SRGB);
1380                         break;
1381                 case TV:
1382                 case SVID:
1383                         v4l2_ctrl_s_ctrl(dev->colorspace, VIVID_CS_170M);
1384                         break;
1385                 case HDMI:
1386                         if (bt->flags & V4L2_DV_FL_IS_CE_VIDEO) {
1387                                 if (dev->src_rect.width == 720 && dev->src_rect.height <= 576)
1388                                         v4l2_ctrl_s_ctrl(dev->colorspace, VIVID_CS_170M);
1389                                 else
1390                                         v4l2_ctrl_s_ctrl(dev->colorspace, VIVID_CS_709);
1391                         } else {
1392                                 v4l2_ctrl_s_ctrl(dev->colorspace, VIVID_CS_SRGB);
1393                         }
1394                         break;
1395                 }
1396         }
1397
1398         /*
1399          * Modify the brightness range depending on the input.
1400          * This makes it easy to use vivid to test if applications can
1401          * handle control range modifications and is also how this is
1402          * typically used in practice as different inputs may be hooked
1403          * up to different receivers with different control ranges.
1404          */
1405         brightness = 128 * i + dev->input_brightness[i];
1406         v4l2_ctrl_modify_range(dev->brightness,
1407                         128 * i, 255 + 128 * i, 1, 128 + 128 * i);
1408         v4l2_ctrl_s_ctrl(dev->brightness, brightness);
1409         return 0;
1410 }
1411
1412 int vidioc_enumaudio(struct file *file, void *fh, struct v4l2_audio *vin)
1413 {
1414         if (vin->index >= ARRAY_SIZE(vivid_audio_inputs))
1415                 return -EINVAL;
1416         *vin = vivid_audio_inputs[vin->index];
1417         return 0;
1418 }
1419
1420 int vidioc_g_audio(struct file *file, void *fh, struct v4l2_audio *vin)
1421 {
1422         struct vivid_dev *dev = video_drvdata(file);
1423
1424         if (!vivid_is_sdtv_cap(dev))
1425                 return -EINVAL;
1426         *vin = vivid_audio_inputs[dev->tv_audio_input];
1427         return 0;
1428 }
1429
1430 int vidioc_s_audio(struct file *file, void *fh, const struct v4l2_audio *vin)
1431 {
1432         struct vivid_dev *dev = video_drvdata(file);
1433
1434         if (!vivid_is_sdtv_cap(dev))
1435                 return -EINVAL;
1436         if (vin->index >= ARRAY_SIZE(vivid_audio_inputs))
1437                 return -EINVAL;
1438         dev->tv_audio_input = vin->index;
1439         return 0;
1440 }
1441
1442 int vivid_video_g_frequency(struct file *file, void *fh, struct v4l2_frequency *vf)
1443 {
1444         struct vivid_dev *dev = video_drvdata(file);
1445
1446         if (vf->tuner != 0)
1447                 return -EINVAL;
1448         vf->frequency = dev->tv_freq;
1449         return 0;
1450 }
1451
1452 int vivid_video_s_frequency(struct file *file, void *fh, const struct v4l2_frequency *vf)
1453 {
1454         struct vivid_dev *dev = video_drvdata(file);
1455
1456         if (vf->tuner != 0)
1457                 return -EINVAL;
1458         dev->tv_freq = clamp_t(unsigned, vf->frequency, MIN_TV_FREQ, MAX_TV_FREQ);
1459         if (vivid_is_tv_cap(dev))
1460                 vivid_update_quality(dev);
1461         return 0;
1462 }
1463
1464 int vivid_video_s_tuner(struct file *file, void *fh, const struct v4l2_tuner *vt)
1465 {
1466         struct vivid_dev *dev = video_drvdata(file);
1467
1468         if (vt->index != 0)
1469                 return -EINVAL;
1470         if (vt->audmode > V4L2_TUNER_MODE_LANG1_LANG2)
1471                 return -EINVAL;
1472         dev->tv_audmode = vt->audmode;
1473         return 0;
1474 }
1475
1476 int vivid_video_g_tuner(struct file *file, void *fh, struct v4l2_tuner *vt)
1477 {
1478         struct vivid_dev *dev = video_drvdata(file);
1479         enum tpg_quality qual;
1480
1481         if (vt->index != 0)
1482                 return -EINVAL;
1483
1484         vt->capability = V4L2_TUNER_CAP_NORM | V4L2_TUNER_CAP_STEREO |
1485                          V4L2_TUNER_CAP_LANG1 | V4L2_TUNER_CAP_LANG2;
1486         vt->audmode = dev->tv_audmode;
1487         vt->rangelow = MIN_TV_FREQ;
1488         vt->rangehigh = MAX_TV_FREQ;
1489         qual = vivid_get_quality(dev, &vt->afc);
1490         if (qual == TPG_QUAL_COLOR)
1491                 vt->signal = 0xffff;
1492         else if (qual == TPG_QUAL_GRAY)
1493                 vt->signal = 0x8000;
1494         else
1495                 vt->signal = 0;
1496         if (qual == TPG_QUAL_NOISE) {
1497                 vt->rxsubchans = 0;
1498         } else if (qual == TPG_QUAL_GRAY) {
1499                 vt->rxsubchans = V4L2_TUNER_SUB_MONO;
1500         } else {
1501                 unsigned channel_nr = dev->tv_freq / (6 * 16);
1502                 unsigned options = (dev->std_cap & V4L2_STD_NTSC_M) ? 4 : 3;
1503
1504                 switch (channel_nr % options) {
1505                 case 0:
1506                         vt->rxsubchans = V4L2_TUNER_SUB_MONO;
1507                         break;
1508                 case 1:
1509                         vt->rxsubchans = V4L2_TUNER_SUB_STEREO;
1510                         break;
1511                 case 2:
1512                         if (dev->std_cap & V4L2_STD_NTSC_M)
1513                                 vt->rxsubchans = V4L2_TUNER_SUB_MONO | V4L2_TUNER_SUB_SAP;
1514                         else
1515                                 vt->rxsubchans = V4L2_TUNER_SUB_LANG1 | V4L2_TUNER_SUB_LANG2;
1516                         break;
1517                 case 3:
1518                         vt->rxsubchans = V4L2_TUNER_SUB_STEREO | V4L2_TUNER_SUB_SAP;
1519                         break;
1520                 }
1521         }
1522         strlcpy(vt->name, "TV Tuner", sizeof(vt->name));
1523         return 0;
1524 }
1525
1526 /* Must remain in sync with the vivid_ctrl_standard_strings array */
1527 const v4l2_std_id vivid_standard[] = {
1528         V4L2_STD_NTSC_M,
1529         V4L2_STD_NTSC_M_JP,
1530         V4L2_STD_NTSC_M_KR,
1531         V4L2_STD_NTSC_443,
1532         V4L2_STD_PAL_BG | V4L2_STD_PAL_H,
1533         V4L2_STD_PAL_I,
1534         V4L2_STD_PAL_DK,
1535         V4L2_STD_PAL_M,
1536         V4L2_STD_PAL_N,
1537         V4L2_STD_PAL_Nc,
1538         V4L2_STD_PAL_60,
1539         V4L2_STD_SECAM_B | V4L2_STD_SECAM_G | V4L2_STD_SECAM_H,
1540         V4L2_STD_SECAM_DK,
1541         V4L2_STD_SECAM_L,
1542         V4L2_STD_SECAM_LC,
1543         V4L2_STD_UNKNOWN
1544 };
1545
1546 /* Must remain in sync with the vivid_standard array */
1547 const char * const vivid_ctrl_standard_strings[] = {
1548         "NTSC-M",
1549         "NTSC-M-JP",
1550         "NTSC-M-KR",
1551         "NTSC-443",
1552         "PAL-BGH",
1553         "PAL-I",
1554         "PAL-DK",
1555         "PAL-M",
1556         "PAL-N",
1557         "PAL-Nc",
1558         "PAL-60",
1559         "SECAM-BGH",
1560         "SECAM-DK",
1561         "SECAM-L",
1562         "SECAM-Lc",
1563         NULL,
1564 };
1565
1566 int vidioc_querystd(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_signal_mode == NO_SIGNAL ||
1573             dev->std_signal_mode == NO_LOCK) {
1574                 *id = V4L2_STD_UNKNOWN;
1575                 return 0;
1576         }
1577         if (vivid_is_tv_cap(dev) && tpg_g_quality(&dev->tpg) == TPG_QUAL_NOISE) {
1578                 *id = V4L2_STD_UNKNOWN;
1579         } else if (dev->std_signal_mode == CURRENT_STD) {
1580                 *id = dev->std_cap;
1581         } else if (dev->std_signal_mode == SELECTED_STD) {
1582                 *id = dev->query_std;
1583         } else {
1584                 *id = vivid_standard[dev->query_std_last];
1585                 dev->query_std_last = (dev->query_std_last + 1) % ARRAY_SIZE(vivid_standard);
1586         }
1587
1588         return 0;
1589 }
1590
1591 int vivid_vid_cap_s_std(struct file *file, void *priv, v4l2_std_id id)
1592 {
1593         struct vivid_dev *dev = video_drvdata(file);
1594
1595         if (!vivid_is_sdtv_cap(dev))
1596                 return -ENODATA;
1597         if (dev->std_cap == id)
1598                 return 0;
1599         if (vb2_is_busy(&dev->vb_vid_cap_q) || vb2_is_busy(&dev->vb_vbi_cap_q))
1600                 return -EBUSY;
1601         dev->std_cap = id;
1602         vivid_update_format_cap(dev, false);
1603         return 0;
1604 }
1605
1606 static void find_aspect_ratio(u32 width, u32 height,
1607                                u32 *num, u32 *denom)
1608 {
1609         if (!(height % 3) && ((height * 4 / 3) == width)) {
1610                 *num = 4;
1611                 *denom = 3;
1612         } else if (!(height % 9) && ((height * 16 / 9) == width)) {
1613                 *num = 16;
1614                 *denom = 9;
1615         } else if (!(height % 10) && ((height * 16 / 10) == width)) {
1616                 *num = 16;
1617                 *denom = 10;
1618         } else if (!(height % 4) && ((height * 5 / 4) == width)) {
1619                 *num = 5;
1620                 *denom = 4;
1621         } else if (!(height % 9) && ((height * 15 / 9) == width)) {
1622                 *num = 15;
1623                 *denom = 9;
1624         } else { /* default to 16:9 */
1625                 *num = 16;
1626                 *denom = 9;
1627         }
1628 }
1629
1630 static bool valid_cvt_gtf_timings(struct v4l2_dv_timings *timings)
1631 {
1632         struct v4l2_bt_timings *bt = &timings->bt;
1633         u32 total_h_pixel;
1634         u32 total_v_lines;
1635         u32 h_freq;
1636
1637         if (!v4l2_valid_dv_timings(timings, &vivid_dv_timings_cap,
1638                                 NULL, NULL))
1639                 return false;
1640
1641         total_h_pixel = V4L2_DV_BT_FRAME_WIDTH(bt);
1642         total_v_lines = V4L2_DV_BT_FRAME_HEIGHT(bt);
1643
1644         h_freq = (u32)bt->pixelclock / total_h_pixel;
1645
1646         if (bt->standards == 0 || (bt->standards & V4L2_DV_BT_STD_CVT)) {
1647                 if (v4l2_detect_cvt(total_v_lines, h_freq, bt->vsync, bt->width,
1648                                     bt->polarities, bt->interlaced, timings))
1649                         return true;
1650         }
1651
1652         if (bt->standards == 0 || (bt->standards & V4L2_DV_BT_STD_GTF)) {
1653                 struct v4l2_fract aspect_ratio;
1654
1655                 find_aspect_ratio(bt->width, bt->height,
1656                                   &aspect_ratio.numerator,
1657                                   &aspect_ratio.denominator);
1658                 if (v4l2_detect_gtf(total_v_lines, h_freq, bt->vsync,
1659                                     bt->polarities, bt->interlaced,
1660                                     aspect_ratio, timings))
1661                         return true;
1662         }
1663         return false;
1664 }
1665
1666 int vivid_vid_cap_s_dv_timings(struct file *file, void *_fh,
1667                                     struct v4l2_dv_timings *timings)
1668 {
1669         struct vivid_dev *dev = video_drvdata(file);
1670
1671         if (!vivid_is_hdmi_cap(dev))
1672                 return -ENODATA;
1673         if (!v4l2_find_dv_timings_cap(timings, &vivid_dv_timings_cap,
1674                                       0, NULL, NULL) &&
1675             !valid_cvt_gtf_timings(timings))
1676                 return -EINVAL;
1677
1678         if (v4l2_match_dv_timings(timings, &dev->dv_timings_cap, 0, false))
1679                 return 0;
1680         if (vb2_is_busy(&dev->vb_vid_cap_q))
1681                 return -EBUSY;
1682
1683         dev->dv_timings_cap = *timings;
1684         vivid_update_format_cap(dev, false);
1685         return 0;
1686 }
1687
1688 int vidioc_query_dv_timings(struct file *file, void *_fh,
1689                                     struct v4l2_dv_timings *timings)
1690 {
1691         struct vivid_dev *dev = video_drvdata(file);
1692
1693         if (!vivid_is_hdmi_cap(dev))
1694                 return -ENODATA;
1695         if (dev->dv_timings_signal_mode == NO_SIGNAL ||
1696             dev->edid_blocks == 0)
1697                 return -ENOLINK;
1698         if (dev->dv_timings_signal_mode == NO_LOCK)
1699                 return -ENOLCK;
1700         if (dev->dv_timings_signal_mode == OUT_OF_RANGE) {
1701                 timings->bt.pixelclock = vivid_dv_timings_cap.bt.max_pixelclock * 2;
1702                 return -ERANGE;
1703         }
1704         if (dev->dv_timings_signal_mode == CURRENT_DV_TIMINGS) {
1705                 *timings = dev->dv_timings_cap;
1706         } else if (dev->dv_timings_signal_mode == SELECTED_DV_TIMINGS) {
1707                 *timings = v4l2_dv_timings_presets[dev->query_dv_timings];
1708         } else {
1709                 *timings = v4l2_dv_timings_presets[dev->query_dv_timings_last];
1710                 dev->query_dv_timings_last = (dev->query_dv_timings_last + 1) %
1711                                                 dev->query_dv_timings_size;
1712         }
1713         return 0;
1714 }
1715
1716 int vidioc_s_edid(struct file *file, void *_fh,
1717                          struct v4l2_edid *edid)
1718 {
1719         struct vivid_dev *dev = video_drvdata(file);
1720         u16 phys_addr;
1721         unsigned int i;
1722         int ret;
1723
1724         memset(edid->reserved, 0, sizeof(edid->reserved));
1725         if (edid->pad >= dev->num_inputs)
1726                 return -EINVAL;
1727         if (dev->input_type[edid->pad] != HDMI || edid->start_block)
1728                 return -EINVAL;
1729         if (edid->blocks == 0) {
1730                 dev->edid_blocks = 0;
1731                 phys_addr = CEC_PHYS_ADDR_INVALID;
1732                 goto set_phys_addr;
1733         }
1734         if (edid->blocks > dev->edid_max_blocks) {
1735                 edid->blocks = dev->edid_max_blocks;
1736                 return -E2BIG;
1737         }
1738         phys_addr = cec_get_edid_phys_addr(edid->edid, edid->blocks * 128, NULL);
1739         ret = cec_phys_addr_validate(phys_addr, &phys_addr, NULL);
1740         if (ret)
1741                 return ret;
1742
1743         if (vb2_is_busy(&dev->vb_vid_cap_q))
1744                 return -EBUSY;
1745
1746         dev->edid_blocks = edid->blocks;
1747         memcpy(dev->edid, edid->edid, edid->blocks * 128);
1748
1749 set_phys_addr:
1750         /* TODO: a proper hotplug detect cycle should be emulated here */
1751         cec_s_phys_addr(dev->cec_rx_adap, phys_addr, false);
1752
1753         for (i = 0; i < MAX_OUTPUTS && dev->cec_tx_adap[i]; i++)
1754                 cec_s_phys_addr(dev->cec_tx_adap[i],
1755                                 cec_phys_addr_for_input(phys_addr, i + 1),
1756                                 false);
1757         return 0;
1758 }
1759
1760 int vidioc_enum_framesizes(struct file *file, void *fh,
1761                                          struct v4l2_frmsizeenum *fsize)
1762 {
1763         struct vivid_dev *dev = video_drvdata(file);
1764
1765         if (!vivid_is_webcam(dev) && !dev->has_scaler_cap)
1766                 return -EINVAL;
1767         if (vivid_get_format(dev, fsize->pixel_format) == NULL)
1768                 return -EINVAL;
1769         if (vivid_is_webcam(dev)) {
1770                 if (fsize->index >= ARRAY_SIZE(webcam_sizes))
1771                         return -EINVAL;
1772                 fsize->type = V4L2_FRMSIZE_TYPE_DISCRETE;
1773                 fsize->discrete = webcam_sizes[fsize->index];
1774                 return 0;
1775         }
1776         if (fsize->index)
1777                 return -EINVAL;
1778         fsize->type = V4L2_FRMSIZE_TYPE_STEPWISE;
1779         fsize->stepwise.min_width = MIN_WIDTH;
1780         fsize->stepwise.max_width = MAX_WIDTH * MAX_ZOOM;
1781         fsize->stepwise.step_width = 2;
1782         fsize->stepwise.min_height = MIN_HEIGHT;
1783         fsize->stepwise.max_height = MAX_HEIGHT * MAX_ZOOM;
1784         fsize->stepwise.step_height = 2;
1785         return 0;
1786 }
1787
1788 /* timeperframe is arbitrary and continuous */
1789 int vidioc_enum_frameintervals(struct file *file, void *priv,
1790                                              struct v4l2_frmivalenum *fival)
1791 {
1792         struct vivid_dev *dev = video_drvdata(file);
1793         const struct vivid_fmt *fmt;
1794         int i;
1795
1796         fmt = vivid_get_format(dev, fival->pixel_format);
1797         if (!fmt)
1798                 return -EINVAL;
1799
1800         if (!vivid_is_webcam(dev)) {
1801                 if (fival->index)
1802                         return -EINVAL;
1803                 if (fival->width < MIN_WIDTH || fival->width > MAX_WIDTH * MAX_ZOOM)
1804                         return -EINVAL;
1805                 if (fival->height < MIN_HEIGHT || fival->height > MAX_HEIGHT * MAX_ZOOM)
1806                         return -EINVAL;
1807                 fival->type = V4L2_FRMIVAL_TYPE_DISCRETE;
1808                 fival->discrete = dev->timeperframe_vid_cap;
1809                 return 0;
1810         }
1811
1812         for (i = 0; i < ARRAY_SIZE(webcam_sizes); i++)
1813                 if (fival->width == webcam_sizes[i].width &&
1814                     fival->height == webcam_sizes[i].height)
1815                         break;
1816         if (i == ARRAY_SIZE(webcam_sizes))
1817                 return -EINVAL;
1818         if (fival->index >= 2 * (VIVID_WEBCAM_SIZES - i))
1819                 return -EINVAL;
1820         fival->type = V4L2_FRMIVAL_TYPE_DISCRETE;
1821         fival->discrete = webcam_intervals[fival->index];
1822         return 0;
1823 }
1824
1825 int vivid_vid_cap_g_parm(struct file *file, void *priv,
1826                           struct v4l2_streamparm *parm)
1827 {
1828         struct vivid_dev *dev = video_drvdata(file);
1829
1830         if (parm->type != (dev->multiplanar ?
1831                            V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE :
1832                            V4L2_BUF_TYPE_VIDEO_CAPTURE))
1833                 return -EINVAL;
1834
1835         parm->parm.capture.capability   = V4L2_CAP_TIMEPERFRAME;
1836         parm->parm.capture.timeperframe = dev->timeperframe_vid_cap;
1837         parm->parm.capture.readbuffers  = 1;
1838         return 0;
1839 }
1840
1841 #define FRACT_CMP(a, OP, b)     \
1842         ((u64)(a).numerator * (b).denominator  OP  (u64)(b).numerator * (a).denominator)
1843
1844 int vivid_vid_cap_s_parm(struct file *file, void *priv,
1845                           struct v4l2_streamparm *parm)
1846 {
1847         struct vivid_dev *dev = video_drvdata(file);
1848         unsigned ival_sz = 2 * (VIVID_WEBCAM_SIZES - dev->webcam_size_idx);
1849         struct v4l2_fract tpf;
1850         unsigned i;
1851
1852         if (parm->type != (dev->multiplanar ?
1853                            V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE :
1854                            V4L2_BUF_TYPE_VIDEO_CAPTURE))
1855                 return -EINVAL;
1856         if (!vivid_is_webcam(dev))
1857                 return vivid_vid_cap_g_parm(file, priv, parm);
1858
1859         tpf = parm->parm.capture.timeperframe;
1860
1861         if (tpf.denominator == 0)
1862                 tpf = webcam_intervals[ival_sz - 1];
1863         for (i = 0; i < ival_sz; i++)
1864                 if (FRACT_CMP(tpf, >=, webcam_intervals[i]))
1865                         break;
1866         if (i == ival_sz)
1867                 i = ival_sz - 1;
1868         dev->webcam_ival_idx = i;
1869         tpf = webcam_intervals[dev->webcam_ival_idx];
1870         tpf = FRACT_CMP(tpf, <, tpf_min) ? tpf_min : tpf;
1871         tpf = FRACT_CMP(tpf, >, tpf_max) ? tpf_max : tpf;
1872
1873         /* resync the thread's timings */
1874         dev->cap_seq_resync = true;
1875         dev->timeperframe_vid_cap = tpf;
1876         parm->parm.capture.capability   = V4L2_CAP_TIMEPERFRAME;
1877         parm->parm.capture.timeperframe = tpf;
1878         parm->parm.capture.readbuffers  = 1;
1879         return 0;
1880 }