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

   1 /*
   2  * vivid-vid-cap.c - video capture support functions.
   3  *
   4  * Copyright 2014 Cisco Systems, Inc. and/or its affiliates. All rights reserved.
   5  *
   6  * This program is free software; you may redistribute it and/or modify
   7  * it under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation; version 2 of the License.
   9  *
  10  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  11  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  12  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  13  * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
  14  * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
  15  * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  16  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  17  * SOFTWARE.
  18  */
  19
  20 #include <linux/errno.h>
  21 #include <linux/kernel.h>
  22 #include <linux/sched.h>
  23 #include <linux/vmalloc.h>
  24 #include <linux/videodev2.h>
  25 #include <linux/v4l2-dv-timings.h>
  26 #include <media/v4l2-common.h>
  27 #include <media/v4l2-event.h>
  28 #include <media/v4l2-dv-timings.h>
  29
  30 #include "vivid-core.h"
  31 #include "vivid-vid-common.h"
  32 #include "vivid-kthread-cap.h"
  33 #include "vivid-vid-cap.h"
  34
  35 /* timeperframe: min/max and default */
  36 static const struct v4l2_fract
  37         tpf_min     = {.numerator = 1,          .denominator = FPS_MAX},
  38         tpf_max     = {.numerator = FPS_MAX,    .denominator = 1},
  39         tpf_default = {.numerator = 1,          .denominator = 30};
  40
  41 static const struct vivid_fmt formats_ovl[] = {
  42         {
  43                 .fourcc   = V4L2_PIX_FMT_RGB565, /* gggbbbbb rrrrrggg */
  44                 .vdownsampling = { 1 },
  45                 .bit_depth = { 16 },
  46                 .planes   = 1,
  47                 .buffers = 1,
  48         },
  49         {
  50                 .fourcc   = V4L2_PIX_FMT_XRGB555, /* gggbbbbb arrrrrgg */
  51                 .vdownsampling = { 1 },
  52                 .bit_depth = { 16 },
  53                 .planes   = 1,
  54                 .buffers = 1,
  55         },
  56         {
  57                 .fourcc   = V4L2_PIX_FMT_ARGB555, /* gggbbbbb arrrrrgg */
  58                 .vdownsampling = { 1 },
  59                 .bit_depth = { 16 },
  60                 .planes   = 1,
  61                 .buffers = 1,
  62         },
  63 };
  64
  65 /* The number of discrete webcam framesizes */
  66 #define VIVID_WEBCAM_SIZES 4
  67 /* The number of discrete webcam frameintervals */
  68 #define VIVID_WEBCAM_IVALS (VIVID_WEBCAM_SIZES * 2)
  69
  70 /* Sizes must be in increasing order */
  71 static const struct v4l2_frmsize_discrete webcam_sizes[VIVID_WEBCAM_SIZES] = {
  72         {  320, 180 },
  73         {  640, 360 },
  74         { 1280, 720 },
  75         { 1920, 1080 },
  76 };
  77
  78 /*
  79  * Intervals must be in increasing order and there must be twice as many
  80  * elements in this array as there are in webcam_sizes.
  81  */
  82 static const struct v4l2_fract webcam_intervals[VIVID_WEBCAM_IVALS] = {
  83         {  1, 2 },
  84         {  1, 5 },
  85         {  1, 10 },
  86         {  1, 15 },
  87         {  1, 25 },
  88         {  1, 30 },
  89         {  1, 50 },
  90         {  1, 60 },
  91 };
  92
  93 static const struct v4l2_discrete_probe webcam_probe = {
  94         webcam_sizes,
  95         VIVID_WEBCAM_SIZES
  96 };
  97
  98 static int vid_cap_queue_setup(struct vb2_queue *vq, const struct v4l2_format *fmt,
  99                        unsigned *nbuffers, unsigned *nplanes,
 100                        unsigned sizes[], void *alloc_ctxs[])
 101 {
 102         struct vivid_dev *dev = vb2_get_drv_priv(vq);
 103         unsigned buffers = tpg_g_buffers(&dev->tpg);
 104         unsigned h = dev->fmt_cap_rect.height;
 105         unsigned p;
 106
 107         if (dev->field_cap == V4L2_FIELD_ALTERNATE) {
 108                 /*
 109                  * You cannot use read() with FIELD_ALTERNATE since the field
 110                  * information (TOP/BOTTOM) cannot be passed back to the user.
 111                  */
 112                 if (vb2_fileio_is_active(vq))
 113                         return -EINVAL;
 114         }
 115
 116         if (dev->queue_setup_error) {
 117                 /*
 118                  * Error injection: test what happens if queue_setup() returns
 119                  * an error.
 120                  */
 121                 dev->queue_setup_error = false;
 122                 return -EINVAL;
 123         }
 124         if (fmt) {
 125                 const struct v4l2_pix_format_mplane *mp;
 126                 struct v4l2_format mp_fmt;
 127                 const struct vivid_fmt *vfmt;
 128
 129                 if (!V4L2_TYPE_IS_MULTIPLANAR(fmt->type)) {
 130                         fmt_sp2mp(fmt, &mp_fmt);
 131                         fmt = &mp_fmt;
 132                 }
 133                 mp = &fmt->fmt.pix_mp;
 134                 /*
 135                  * Check if the number of planes in the specified format match
 136                  * the number of buffers in the current format. You can't mix that.
 137                  */
 138                 if (mp->num_planes != buffers)
 139                         return -EINVAL;
 140                 vfmt = vivid_get_format(dev, mp->pixelformat);
 141                 for (p = 0; p < buffers; p++) {
 142                         sizes[p] = mp->plane_fmt[p].sizeimage;
 143                         if (sizes[p] < tpg_g_line_width(&dev->tpg, p) * h +
 144                                                         vfmt->data_offset[p])
 145                                 return -EINVAL;
 146                 }
 147         } else {
 148                 for (p = 0; p < buffers; p++)
 149                         sizes[p] = tpg_g_line_width(&dev->tpg, p) * h +
 150                                         dev->fmt_cap->data_offset[p];
 151         }
 152
 153         if (vq->num_buffers + *nbuffers < 2)
 154                 *nbuffers = 2 - vq->num_buffers;
 155
 156         *nplanes = buffers;
 157
 158         /*
 159          * videobuf2-vmalloc allocator is context-less so no need to set
 160          * alloc_ctxs array.
 161          */
 162
 163         dprintk(dev, 1, "%s: count=%d\n", __func__, *nbuffers);
 164         for (p = 0; p < buffers; p++)
 165                 dprintk(dev, 1, "%s: size[%u]=%u\n", __func__, p, sizes[p]);
 166
 167         return 0;
 168 }
 169
 170 static int vid_cap_buf_prepare(struct vb2_buffer *vb)
 171 {
 172         struct vivid_dev *dev = vb2_get_drv_priv(vb->vb2_queue);
 173         unsigned long size;
 174         unsigned buffers = tpg_g_buffers(&dev->tpg);
 175         unsigned p;
 176
 177         dprintk(dev, 1, "%s\n", __func__);
 178
 179         if (WARN_ON(NULL == dev->fmt_cap))
 180                 return -EINVAL;
 181
 182         if (dev->buf_prepare_error) {
 183                 /*
 184                  * Error injection: test what happens if buf_prepare() returns
 185                  * an error.
 186                  */
 187                 dev->buf_prepare_error = false;
 188                 return -EINVAL;
 189         }
 190         for (p = 0; p < buffers; p++) {
 191                 size = tpg_g_line_width(&dev->tpg, p) * dev->fmt_cap_rect.height +
 192                         dev->fmt_cap->data_offset[p];
 193
 194                 if (vb2_plane_size(vb, p) < size) {
 195                         dprintk(dev, 1, "%s data will not fit into plane %u (%lu < %lu)\n",
 196                                         __func__, p, vb2_plane_size(vb, p), size);
 197                         return -EINVAL;
 198                 }
 199
 200                 vb2_set_plane_payload(vb, p, size);
 201                 vb->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 vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
 210         struct vivid_dev *dev = vb2_get_drv_priv(vb->vb2_queue);
 211         struct v4l2_timecode *tc = &vbuf->timecode;
 212         unsigned fps = 25;
 213         unsigned seq = vbuf->sequence;
 214
 215         if (!vivid_is_sdtv_cap(dev))
 216                 return;
 217
 218         /*
 219          * Set the timecode. Rarely used, so it is interesting to
 220          * test this.
 221          */
 222         vbuf->flags |= V4L2_BUF_FLAG_TIMECODE;
 223         if (dev->std_cap & V4L2_STD_525_60)
 224                 fps = 30;
 225         tc->type = (fps == 30) ? V4L2_TC_TYPE_30FPS : V4L2_TC_TYPE_25FPS;
 226         tc->flags = 0;
 227         tc->frames = seq % fps;
 228         tc->seconds = (seq / fps) % 60;
 229         tc->minutes = (seq / (60 * fps)) % 60;
 230         tc->hours = (seq / (60 * 60 * fps)) % 24;
 231 }
 232
 233 static void vid_cap_buf_queue(struct vb2_buffer *vb)
 234 {
 235         struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
 236         struct vivid_dev *dev = vb2_get_drv_priv(vb->vb2_queue);
 237         struct vivid_buffer *buf = container_of(vbuf, struct vivid_buffer, vb);
 238
 239         dprintk(dev, 1, "%s\n", __func__);
 240
 241         spin_lock(&dev->slock);
 242         list_add_tail(&buf->list, &dev->vid_cap_active);
 243         spin_unlock(&dev->slock);
 244 }
 245
 246 static int vid_cap_start_streaming(struct vb2_queue *vq, unsigned count)
 247 {
 248         struct vivid_dev *dev = vb2_get_drv_priv(vq);
 249         unsigned i;
 250         int err;
 251
 252         if (vb2_is_streaming(&dev->vb_vid_out_q))
 253                 dev->can_loop_video = vivid_vid_can_loop(dev);
 254
 255         if (dev->kthread_vid_cap)
 256                 return 0;
 257
 258         dev->vid_cap_seq_count = 0;
 259         dprintk(dev, 1, "%s\n", __func__);
 260         for (i = 0; i < VIDEO_MAX_FRAME; i++)
 261                 dev->must_blank[i] = tpg_g_perc_fill(&dev->tpg) < 100;
 262         if (dev->start_streaming_error) {
 263                 dev->start_streaming_error = false;
 264                 err = -EINVAL;
 265         } else {
 266                 err = vivid_start_generating_vid_cap(dev, &dev->vid_cap_streaming);
 267         }
 268         if (err) {
 269                 struct vivid_buffer *buf, *tmp;
 270
 271                 list_for_each_entry_safe(buf, tmp, &dev->vid_cap_active, list) {
 272                         list_del(&buf->list);
 273                         vb2_buffer_done(&buf->vb.vb2_buf,
 274                                         VB2_BUF_STATE_QUEUED);
 275                 }
 276         }
 277         return err;
 278 }
 279
 280 /* abort streaming and wait for last buffer */
 281 static void vid_cap_stop_streaming(struct vb2_queue *vq)
 282 {
 283         struct vivid_dev *dev = vb2_get_drv_priv(vq);
 284
 285         dprintk(dev, 1, "%s\n", __func__);
 286         vivid_stop_generating_vid_cap(dev, &dev->vid_cap_streaming);
 287         dev->can_loop_video = false;
 288 }
 289
 290 const struct vb2_ops vivid_vid_cap_qops = {
 291         .queue_setup            = vid_cap_queue_setup,
 292         .buf_prepare            = vid_cap_buf_prepare,
 293         .buf_finish             = vid_cap_buf_finish,
 294         .buf_queue              = vid_cap_buf_queue,
 295         .start_streaming        = vid_cap_start_streaming,
 296         .stop_streaming         = vid_cap_stop_streaming,
 297         .wait_prepare           = vb2_ops_wait_prepare,
 298         .wait_finish            = vb2_ops_wait_finish,
 299 };
 300
 301 /*
 302  * Determine the 'picture' quality based on the current TV frequency: either
 303  * COLOR for a good 'signal', GRAY (grayscale picture) for a slightly off
 304  * signal or NOISE for no signal.
 305  */
 306 void vivid_update_quality(struct vivid_dev *dev)
 307 {
 308         unsigned freq_modulus;
 309
 310         if (dev->loop_video && (vivid_is_svid_cap(dev) || vivid_is_hdmi_cap(dev))) {
 311                 /*
 312                  * The 'noise' will only be replaced by the actual video
 313                  * if the output video matches the input video settings.
 314                  */
 315                 tpg_s_quality(&dev->tpg, TPG_QUAL_NOISE, 0);
 316                 return;
 317         }
 318         if (vivid_is_hdmi_cap(dev) && VIVID_INVALID_SIGNAL(dev->dv_timings_signal_mode)) {
 319                 tpg_s_quality(&dev->tpg, TPG_QUAL_NOISE, 0);
 320                 return;
 321         }
 322         if (vivid_is_sdtv_cap(dev) && VIVID_INVALID_SIGNAL(dev->std_signal_mode)) {
 323                 tpg_s_quality(&dev->tpg, TPG_QUAL_NOISE, 0);
 324                 return;
 325         }
 326         if (!vivid_is_tv_cap(dev)) {
 327                 tpg_s_quality(&dev->tpg, TPG_QUAL_COLOR, 0);
 328                 return;
 329         }
 330
 331         /*
 332          * There is a fake channel every 6 MHz at 49.25, 55.25, etc.
 333          * From +/- 0.25 MHz around the channel there is color, and from
 334          * +/- 1 MHz there is grayscale (chroma is lost).
 335          * Everywhere else it is just noise.
 336          */
 337         freq_modulus = (dev->tv_freq - 676 /* (43.25-1) * 16 */) % (6 * 16);
 338         if (freq_modulus > 2 * 16) {
 339                 tpg_s_quality(&dev->tpg, TPG_QUAL_NOISE,
 340                         next_pseudo_random32(dev->tv_freq ^ 0x55) & 0x3f);
 341                 return;
 342         }
 343         if (freq_modulus < 12 /*0.75 * 16*/ || freq_modulus > 20 /*1.25 * 16*/)
 344                 tpg_s_quality(&dev->tpg, TPG_QUAL_GRAY, 0);
 345         else
 346                 tpg_s_quality(&dev->tpg, TPG_QUAL_COLOR, 0);
 347 }
 348
 349 /*
 350  * Get the current picture quality and the associated afc value.
 351  */
 352 static enum tpg_quality vivid_get_quality(struct vivid_dev *dev, s32 *afc)
 353 {
 354         unsigned freq_modulus;
 355
 356         if (afc)
 357                 *afc = 0;
 358         if (tpg_g_quality(&dev->tpg) == TPG_QUAL_COLOR ||
 359             tpg_g_quality(&dev->tpg) == TPG_QUAL_NOISE)
 360                 return tpg_g_quality(&dev->tpg);
 361
 362         /*
 363          * There is a fake channel every 6 MHz at 49.25, 55.25, etc.
 364          * From +/- 0.25 MHz around the channel there is color, and from
 365          * +/- 1 MHz there is grayscale (chroma is lost).
 366          * Everywhere else it is just gray.
 367          */
 368         freq_modulus = (dev->tv_freq - 676 /* (43.25-1) * 16 */) % (6 * 16);
 369         if (afc)
 370                 *afc = freq_modulus - 1 * 16;
 371         return TPG_QUAL_GRAY;
 372 }
 373
 374 enum tpg_video_aspect vivid_get_video_aspect(const struct vivid_dev *dev)
 375 {
 376         if (vivid_is_sdtv_cap(dev))
 377                 return dev->std_aspect_ratio;
 378
 379         if (vivid_is_hdmi_cap(dev))
 380                 return dev->dv_timings_aspect_ratio;
 381
 382         return TPG_VIDEO_ASPECT_IMAGE;
 383 }
 384
 385 static enum tpg_pixel_aspect vivid_get_pixel_aspect(const struct vivid_dev *dev)
 386 {
 387         if (vivid_is_sdtv_cap(dev))
 388                 return (dev->std_cap & V4L2_STD_525_60) ?
 389                         TPG_PIXEL_ASPECT_NTSC : TPG_PIXEL_ASPECT_PAL;
 390
 391         if (vivid_is_hdmi_cap(dev) &&
 392             dev->src_rect.width == 720 && dev->src_rect.height <= 576)
 393                 return dev->src_rect.height == 480 ?
 394                         TPG_PIXEL_ASPECT_NTSC : TPG_PIXEL_ASPECT_PAL;
 395
 396         return TPG_PIXEL_ASPECT_SQUARE;
 397 }
 398
 399 /*
 400  * Called whenever the format has to be reset which can occur when
 401  * changing inputs, standard, timings, etc.
 402  */
 403 void vivid_update_format_cap(struct vivid_dev *dev, bool keep_controls)
 404 {
 405         struct v4l2_bt_timings *bt = &dev->dv_timings_cap.bt;
 406         unsigned size;
 407
 408         switch (dev->input_type[dev->input]) {
 409         case WEBCAM:
 410         default:
 411                 dev->src_rect.width = webcam_sizes[dev->webcam_size_idx].width;
 412                 dev->src_rect.height = webcam_sizes[dev->webcam_size_idx].height;
 413                 dev->timeperframe_vid_cap = webcam_intervals[dev->webcam_ival_idx];
 414                 dev->field_cap = V4L2_FIELD_NONE;
 415                 tpg_s_rgb_range(&dev->tpg, V4L2_DV_RGB_RANGE_AUTO);
 416                 break;
 417         case TV:
 418         case SVID:
 419                 dev->field_cap = dev->tv_field_cap;
 420                 dev->src_rect.width = 720;
 421                 if (dev->std_cap & V4L2_STD_525_60) {
 422                         dev->src_rect.height = 480;
 423                         dev->timeperframe_vid_cap = (struct v4l2_fract) { 1001, 30000 };
 424                         dev->service_set_cap = V4L2_SLICED_CAPTION_525;
 425                 } else {
 426                         dev->src_rect.height = 576;
 427                         dev->timeperframe_vid_cap = (struct v4l2_fract) { 1000, 25000 };
 428                         dev->service_set_cap = V4L2_SLICED_WSS_625 | V4L2_SLICED_TELETEXT_B;
 429                 }
 430                 tpg_s_rgb_range(&dev->tpg, V4L2_DV_RGB_RANGE_AUTO);
 431                 break;
 432         case HDMI:
 433                 dev->src_rect.width = bt->width;
 434                 dev->src_rect.height = bt->height;
 435                 size = V4L2_DV_BT_FRAME_WIDTH(bt) * V4L2_DV_BT_FRAME_HEIGHT(bt);
 436                 dev->timeperframe_vid_cap = (struct v4l2_fract) {
 437                         size / 100, (u32)bt->pixelclock / 100
 438                 };
 439                 if (bt->interlaced)
 440                         dev->field_cap = V4L2_FIELD_ALTERNATE;
 441                 else
 442                         dev->field_cap = V4L2_FIELD_NONE;
 443
 444                 /*
 445                  * We can be called from within s_ctrl, in that case we can't
 446                  * set/get controls. Luckily we don't need to in that case.
 447                  */
 448                 if (keep_controls || !dev->colorspace)
 449                         break;
 450                 if (bt->flags & V4L2_DV_FL_IS_CE_VIDEO) {
 451                         if (bt->width == 720 && bt->height <= 576)
 452                                 v4l2_ctrl_s_ctrl(dev->colorspace, VIVID_CS_170M);
 453                         else
 454                                 v4l2_ctrl_s_ctrl(dev->colorspace, VIVID_CS_709);
 455                         v4l2_ctrl_s_ctrl(dev->real_rgb_range_cap, 1);
 456                 } else {
 457                         v4l2_ctrl_s_ctrl(dev->colorspace, VIVID_CS_SRGB);
 458                         v4l2_ctrl_s_ctrl(dev->real_rgb_range_cap, 0);
 459                 }
 460                 tpg_s_rgb_range(&dev->tpg, v4l2_ctrl_g_ctrl(dev->rgb_range_cap));
 461                 break;
 462         }
 463         vivid_update_quality(dev);
 464         tpg_reset_source(&dev->tpg, dev->src_rect.width, dev->src_rect.height, dev->field_cap);
 465         dev->crop_cap = dev->src_rect;
 466         dev->crop_bounds_cap = dev->src_rect;
 467         dev->compose_cap = dev->crop_cap;
 468         if (V4L2_FIELD_HAS_T_OR_B(dev->field_cap))
 469                 dev->compose_cap.height /= 2;
 470         dev->fmt_cap_rect = dev->compose_cap;
 471         tpg_s_video_aspect(&dev->tpg, vivid_get_video_aspect(dev));
 472         tpg_s_pixel_aspect(&dev->tpg, vivid_get_pixel_aspect(dev));
 473         tpg_update_mv_step(&dev->tpg);
 474 }
 475
 476 /* Map the field to something that is valid for the current input */
 477 static enum v4l2_field vivid_field_cap(struct vivid_dev *dev, enum v4l2_field field)
 478 {
 479         if (vivid_is_sdtv_cap(dev)) {
 480                 switch (field) {
 481                 case V4L2_FIELD_INTERLACED_TB:
 482                 case V4L2_FIELD_INTERLACED_BT:
 483                 case V4L2_FIELD_SEQ_TB:
 484                 case V4L2_FIELD_SEQ_BT:
 485                 case V4L2_FIELD_TOP:
 486                 case V4L2_FIELD_BOTTOM:
 487                 case V4L2_FIELD_ALTERNATE:
 488                         return field;
 489                 case V4L2_FIELD_INTERLACED:
 490                 default:
 491                         return V4L2_FIELD_INTERLACED;
 492                 }
 493         }
 494         if (vivid_is_hdmi_cap(dev))
 495                 return dev->dv_timings_cap.bt.interlaced ? V4L2_FIELD_ALTERNATE :
 496                                                        V4L2_FIELD_NONE;
 497         return V4L2_FIELD_NONE;
 498 }
 499
 500 static unsigned vivid_colorspace_cap(struct vivid_dev *dev)
 501 {
 502         if (!dev->loop_video || vivid_is_webcam(dev) || vivid_is_tv_cap(dev))
 503                 return tpg_g_colorspace(&dev->tpg);
 504         return dev->colorspace_out;
 505 }
 506
 507 static unsigned vivid_xfer_func_cap(struct vivid_dev *dev)
 508 {
 509         if (!dev->loop_video || vivid_is_webcam(dev) || vivid_is_tv_cap(dev))
 510                 return tpg_g_xfer_func(&dev->tpg);
 511         return dev->xfer_func_out;
 512 }
 513
 514 static unsigned vivid_ycbcr_enc_cap(struct vivid_dev *dev)
 515 {
 516         if (!dev->loop_video || vivid_is_webcam(dev) || vivid_is_tv_cap(dev))
 517                 return tpg_g_ycbcr_enc(&dev->tpg);
 518         return dev->ycbcr_enc_out;
 519 }
 520
 521 static unsigned vivid_quantization_cap(struct vivid_dev *dev)
 522 {
 523         if (!dev->loop_video || vivid_is_webcam(dev) || vivid_is_tv_cap(dev))
 524                 return tpg_g_quantization(&dev->tpg);
 525         return dev->quantization_out;
 526 }
 527
 528 int vivid_g_fmt_vid_cap(struct file *file, void *priv,
 529                                         struct v4l2_format *f)
 530 {
 531         struct vivid_dev *dev = video_drvdata(file);
 532         struct v4l2_pix_format_mplane *mp = &f->fmt.pix_mp;
 533         unsigned p;
 534
 535         mp->width        = dev->fmt_cap_rect.width;
 536         mp->height       = dev->fmt_cap_rect.height;
 537         mp->field        = dev->field_cap;
 538         mp->pixelformat  = dev->fmt_cap->fourcc;
 539         mp->colorspace   = vivid_colorspace_cap(dev);
 540         mp->xfer_func    = vivid_xfer_func_cap(dev);
 541         mp->ycbcr_enc    = vivid_ycbcr_enc_cap(dev);
 542         mp->quantization = vivid_quantization_cap(dev);
 543         mp->num_planes = dev->fmt_cap->buffers;
 544         for (p = 0; p < mp->num_planes; p++) {
 545                 mp->plane_fmt[p].bytesperline = tpg_g_bytesperline(&dev->tpg, p);
 546                 mp->plane_fmt[p].sizeimage =
 547                         tpg_g_line_width(&dev->tpg, p) * mp->height +
 548                         dev->fmt_cap->data_offset[p];
 549         }
 550         return 0;
 551 }
 552
 553 int vivid_try_fmt_vid_cap(struct file *file, void *priv,
 554                         struct v4l2_format *f)
 555 {
 556         struct v4l2_pix_format_mplane *mp = &f->fmt.pix_mp;
 557         struct v4l2_plane_pix_format *pfmt = mp->plane_fmt;
 558         struct vivid_dev *dev = video_drvdata(file);
 559         const struct vivid_fmt *fmt;
 560         unsigned bytesperline, max_bpl;
 561         unsigned factor = 1;
 562         unsigned w, h;
 563         unsigned p;
 564
 565         fmt = vivid_get_format(dev, mp->pixelformat);
 566         if (!fmt) {
 567                 dprintk(dev, 1, "Fourcc format (0x%08x) unknown.\n",
 568                         mp->pixelformat);
 569                 mp->pixelformat = V4L2_PIX_FMT_YUYV;
 570                 fmt = vivid_get_format(dev, mp->pixelformat);
 571         }
 572
 573         mp->field = vivid_field_cap(dev, mp->field);
 574         if (vivid_is_webcam(dev)) {
 575                 const struct v4l2_frmsize_discrete *sz =
 576                         v4l2_find_nearest_format(&webcam_probe, mp->width, mp->height);
 577
 578                 w = sz->width;
 579                 h = sz->height;
 580         } else if (vivid_is_sdtv_cap(dev)) {
 581                 w = 720;
 582                 h = (dev->std_cap & V4L2_STD_525_60) ? 480 : 576;
 583         } else {
 584                 w = dev->src_rect.width;
 585                 h = dev->src_rect.height;
 586         }
 587         if (V4L2_FIELD_HAS_T_OR_B(mp->field))
 588                 factor = 2;
 589         if (vivid_is_webcam(dev) ||
 590             (!dev->has_scaler_cap && !dev->has_crop_cap && !dev->has_compose_cap)) {
 591                 mp->width = w;
 592                 mp->height = h / factor;
 593         } else {
 594                 struct v4l2_rect r = { 0, 0, mp->width, mp->height * factor };
 595
 596                 rect_set_min_size(&r, &vivid_min_rect);
 597                 rect_set_max_size(&r, &vivid_max_rect);
 598                 if (dev->has_scaler_cap && !dev->has_compose_cap) {
 599                         struct v4l2_rect max_r = { 0, 0, MAX_ZOOM * w, MAX_ZOOM * h };
 600
 601                         rect_set_max_size(&r, &max_r);
 602                 } else if (!dev->has_scaler_cap && dev->has_crop_cap && !dev->has_compose_cap) {
 603                         rect_set_max_size(&r, &dev->src_rect);
 604                 } else if (!dev->has_scaler_cap && !dev->has_crop_cap) {
 605                         rect_set_min_size(&r, &dev->src_rect);
 606                 }
 607                 mp->width = r.width;
 608                 mp->height = r.height / factor;
 609         }
 610
 611         /* This driver supports custom bytesperline values */
 612
 613         mp->num_planes = fmt->buffers;
 614         for (p = 0; p < mp->num_planes; p++) {
 615                 /* Calculate the minimum supported bytesperline value */
 616                 bytesperline = (mp->width * fmt->bit_depth[p]) >> 3;
 617                 /* Calculate the maximum supported bytesperline value */
 618                 max_bpl = (MAX_ZOOM * MAX_WIDTH * fmt->bit_depth[p]) >> 3;
 619
 620                 if (pfmt[p].bytesperline > max_bpl)
 621                         pfmt[p].bytesperline = max_bpl;
 622                 if (pfmt[p].bytesperline < bytesperline)
 623                         pfmt[p].bytesperline = bytesperline;
 624                 pfmt[p].sizeimage = tpg_calc_line_width(&dev->tpg, p, pfmt[p].bytesperline) *
 625                         mp->height + fmt->data_offset[p];
 626                 memset(pfmt[p].reserved, 0, sizeof(pfmt[p].reserved));
 627         }
 628         mp->colorspace = vivid_colorspace_cap(dev);
 629         mp->ycbcr_enc = vivid_ycbcr_enc_cap(dev);
 630         mp->xfer_func = vivid_xfer_func_cap(dev);
 631         mp->quantization = vivid_quantization_cap(dev);
 632         memset(mp->reserved, 0, sizeof(mp->reserved));
 633         return 0;
 634 }
 635
 636 int vivid_s_fmt_vid_cap(struct file *file, void *priv,
 637                                         struct v4l2_format *f)
 638 {
 639         struct v4l2_pix_format_mplane *mp = &f->fmt.pix_mp;
 640         struct vivid_dev *dev = video_drvdata(file);
 641         struct v4l2_rect *crop = &dev->crop_cap;
 642         struct v4l2_rect *compose = &dev->compose_cap;
 643         struct vb2_queue *q = &dev->vb_vid_cap_q;
 644         int ret = vivid_try_fmt_vid_cap(file, priv, f);
 645         unsigned factor = 1;
 646         unsigned p;
 647         unsigned i;
 648
 649         if (ret < 0)
 650                 return ret;
 651
 652         if (vb2_is_busy(q)) {
 653                 dprintk(dev, 1, "%s device busy\n", __func__);
 654                 return -EBUSY;
 655         }
 656
 657         if (dev->overlay_cap_owner && dev->fb_cap.fmt.pixelformat != mp->pixelformat) {
 658                 dprintk(dev, 1, "overlay is active, can't change pixelformat\n");
 659                 return -EBUSY;
 660         }
 661
 662         dev->fmt_cap = vivid_get_format(dev, mp->pixelformat);
 663         if (V4L2_FIELD_HAS_T_OR_B(mp->field))
 664                 factor = 2;
 665
 666         /* Note: the webcam input doesn't support scaling, cropping or composing */
 667
 668         if (!vivid_is_webcam(dev) &&
 669             (dev->has_scaler_cap || dev->has_crop_cap || dev->has_compose_cap)) {
 670                 struct v4l2_rect r = { 0, 0, mp->width, mp->height };
 671
 672                 if (dev->has_scaler_cap) {
 673                         if (dev->has_compose_cap)
 674                                 rect_map_inside(compose, &r);
 675                         else
 676                                 *compose = r;
 677                         if (dev->has_crop_cap && !dev->has_compose_cap) {
 678                                 struct v4l2_rect min_r = {
 679                                         0, 0,
 680                                         r.width / MAX_ZOOM,
 681                                         factor * r.height / MAX_ZOOM
 682                                 };
 683                                 struct v4l2_rect max_r = {
 684                                         0, 0,
 685                                         r.width * MAX_ZOOM,
 686                                         factor * r.height * MAX_ZOOM
 687                                 };
 688
 689                                 rect_set_min_size(crop, &min_r);
 690                                 rect_set_max_size(crop, &max_r);
 691                                 rect_map_inside(crop, &dev->crop_bounds_cap);
 692                         } else if (dev->has_crop_cap) {
 693                                 struct v4l2_rect min_r = {
 694                                         0, 0,
 695                                         compose->width / MAX_ZOOM,
 696                                         factor * compose->height / MAX_ZOOM
 697                                 };
 698                                 struct v4l2_rect max_r = {
 699                                         0, 0,
 700                                         compose->width * MAX_ZOOM,
 701                                         factor * compose->height * MAX_ZOOM
 702                                 };
 703
 704                                 rect_set_min_size(crop, &min_r);
 705                                 rect_set_max_size(crop, &max_r);
 706                                 rect_map_inside(crop, &dev->crop_bounds_cap);
 707                         }
 708                 } else if (dev->has_crop_cap && !dev->has_compose_cap) {
 709                         r.height *= factor;
 710                         rect_set_size_to(crop, &r);
 711                         rect_map_inside(crop, &dev->crop_bounds_cap);
 712                         r = *crop;
 713                         r.height /= factor;
 714                         rect_set_size_to(compose, &r);
 715                 } else if (!dev->has_crop_cap) {
 716                         rect_map_inside(compose, &r);
 717                 } else {
 718                         r.height *= factor;
 719                         rect_set_max_size(crop, &r);
 720                         rect_map_inside(crop, &dev->crop_bounds_cap);
 721                         compose->top *= factor;
 722                         compose->height *= factor;
 723                         rect_set_size_to(compose, crop);
 724                         rect_map_inside(compose, &r);
 725                         compose->top /= factor;
 726                         compose->height /= factor;
 727                 }
 728         } else if (vivid_is_webcam(dev)) {
 729                 /* Guaranteed to be a match */
 730                 for (i = 0; i < ARRAY_SIZE(webcam_sizes); i++)
 731                         if (webcam_sizes[i].width == mp->width &&
 732                                         webcam_sizes[i].height == mp->height)
 733                                 break;
 734                 dev->webcam_size_idx = i;
 735                 if (dev->webcam_ival_idx >= 2 * (VIVID_WEBCAM_SIZES - i))
 736                         dev->webcam_ival_idx = 2 * (VIVID_WEBCAM_SIZES - i) - 1;
 737                 vivid_update_format_cap(dev, false);
 738         } else {
 739                 struct v4l2_rect r = { 0, 0, mp->width, mp->height };
 740
 741                 rect_set_size_to(compose, &r);
 742                 r.height *= factor;
 743                 rect_set_size_to(crop, &r);
 744         }
 745
 746         dev->fmt_cap_rect.width = mp->width;
 747         dev->fmt_cap_rect.height = mp->height;
 748         tpg_s_buf_height(&dev->tpg, mp->height);
 749         tpg_s_fourcc(&dev->tpg, dev->fmt_cap->fourcc);
 750         for (p = 0; p < tpg_g_buffers(&dev->tpg); p++)
 751                 tpg_s_bytesperline(&dev->tpg, p, mp->plane_fmt[p].bytesperline);
 752         dev->field_cap = mp->field;
 753         if (dev->field_cap == V4L2_FIELD_ALTERNATE)
 754                 tpg_s_field(&dev->tpg, V4L2_FIELD_TOP, true);
 755         else
 756                 tpg_s_field(&dev->tpg, dev->field_cap, false);
 757         tpg_s_crop_compose(&dev->tpg, &dev->crop_cap, &dev->compose_cap);
 758         if (vivid_is_sdtv_cap(dev))
 759                 dev->tv_field_cap = mp->field;
 760         tpg_update_mv_step(&dev->tpg);
 761         return 0;
 762 }
 763
 764 int vidioc_g_fmt_vid_cap_mplane(struct file *file, void *priv,
 765                                         struct v4l2_format *f)
 766 {
 767         struct vivid_dev *dev = video_drvdata(file);
 768
 769         if (!dev->multiplanar)
 770                 return -ENOTTY;
 771         return vivid_g_fmt_vid_cap(file, priv, f);
 772 }
 773
 774 int vidioc_try_fmt_vid_cap_mplane(struct file *file, void *priv,
 775                         struct v4l2_format *f)
 776 {
 777         struct vivid_dev *dev = video_drvdata(file);
 778
 779         if (!dev->multiplanar)
 780                 return -ENOTTY;
 781         return vivid_try_fmt_vid_cap(file, priv, f);
 782 }
 783
 784 int vidioc_s_fmt_vid_cap_mplane(struct file *file, void *priv,
 785                         struct v4l2_format *f)
 786 {
 787         struct vivid_dev *dev = video_drvdata(file);
 788
 789         if (!dev->multiplanar)
 790                 return -ENOTTY;
 791         return vivid_s_fmt_vid_cap(file, priv, f);
 792 }
 793
 794 int vidioc_g_fmt_vid_cap(struct file *file, void *priv,
 795                                         struct v4l2_format *f)
 796 {
 797         struct vivid_dev *dev = video_drvdata(file);
 798
 799         if (dev->multiplanar)
 800                 return -ENOTTY;
 801         return fmt_sp2mp_func(file, priv, f, vivid_g_fmt_vid_cap);
 802 }
 803
 804 int vidioc_try_fmt_vid_cap(struct file *file, void *priv,
 805                         struct v4l2_format *f)
 806 {
 807         struct vivid_dev *dev = video_drvdata(file);
 808
 809         if (dev->multiplanar)
 810                 return -ENOTTY;
 811         return fmt_sp2mp_func(file, priv, f, vivid_try_fmt_vid_cap);
 812 }
 813
 814 int vidioc_s_fmt_vid_cap(struct file *file, void *priv,
 815                         struct v4l2_format *f)
 816 {
 817         struct vivid_dev *dev = video_drvdata(file);
 818
 819         if (dev->multiplanar)
 820                 return -ENOTTY;
 821         return fmt_sp2mp_func(file, priv, f, vivid_s_fmt_vid_cap);
 822 }
 823
 824 int vivid_vid_cap_g_selection(struct file *file, void *priv,
 825                               struct v4l2_selection *sel)
 826 {
 827         struct vivid_dev *dev = video_drvdata(file);
 828
 829         if (!dev->has_crop_cap && !dev->has_compose_cap)
 830                 return -ENOTTY;
 831         if (sel->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
 832                 return -EINVAL;
 833         if (vivid_is_webcam(dev))
 834                 return -EINVAL;
 835
 836         sel->r.left = sel->r.top = 0;
 837         switch (sel->target) {
 838         case V4L2_SEL_TGT_CROP:
 839                 if (!dev->has_crop_cap)
 840                         return -EINVAL;
 841                 sel->r = dev->crop_cap;
 842                 break;
 843         case V4L2_SEL_TGT_CROP_DEFAULT:
 844         case V4L2_SEL_TGT_CROP_BOUNDS:
 845                 if (!dev->has_crop_cap)
 846                         return -EINVAL;
 847                 sel->r = dev->src_rect;
 848                 break;
 849         case V4L2_SEL_TGT_COMPOSE_BOUNDS:
 850                 if (!dev->has_compose_cap)
 851                         return -EINVAL;
 852                 sel->r = vivid_max_rect;
 853                 break;
 854         case V4L2_SEL_TGT_COMPOSE:
 855                 if (!dev->has_compose_cap)
 856                         return -EINVAL;
 857                 sel->r = dev->compose_cap;
 858                 break;
 859         case V4L2_SEL_TGT_COMPOSE_DEFAULT:
 860                 if (!dev->has_compose_cap)
 861                         return -EINVAL;
 862                 sel->r = dev->fmt_cap_rect;
 863                 break;
 864         default:
 865                 return -EINVAL;
 866         }
 867         return 0;
 868 }
 869
 870 int vivid_vid_cap_s_selection(struct file *file, void *fh, struct v4l2_selection *s)
 871 {
 872         struct vivid_dev *dev = video_drvdata(file);
 873         struct v4l2_rect *crop = &dev->crop_cap;
 874         struct v4l2_rect *compose = &dev->compose_cap;
 875         unsigned factor = V4L2_FIELD_HAS_T_OR_B(dev->field_cap) ? 2 : 1;
 876         int ret;
 877
 878         if (!dev->has_crop_cap && !dev->has_compose_cap)
 879                 return -ENOTTY;
 880         if (s->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
 881                 return -EINVAL;
 882         if (vivid_is_webcam(dev))
 883                 return -EINVAL;
 884
 885         switch (s->target) {
 886         case V4L2_SEL_TGT_CROP:
 887                 if (!dev->has_crop_cap)
 888                         return -EINVAL;
 889                 ret = vivid_vid_adjust_sel(s->flags, &s->r);
 890                 if (ret)
 891                         return ret;
 892                 rect_set_min_size(&s->r, &vivid_min_rect);
 893                 rect_set_max_size(&s->r, &dev->src_rect);
 894                 rect_map_inside(&s->r, &dev->crop_bounds_cap);
 895                 s->r.top /= factor;
 896                 s->r.height /= factor;
 897                 if (dev->has_scaler_cap) {
 898                         struct v4l2_rect fmt = dev->fmt_cap_rect;
 899                         struct v4l2_rect max_rect = {
 900                                 0, 0,
 901                                 s->r.width * MAX_ZOOM,
 902                                 s->r.height * MAX_ZOOM
 903                         };
 904                         struct v4l2_rect min_rect = {
 905                                 0, 0,
 906                                 s->r.width / MAX_ZOOM,
 907                                 s->r.height / MAX_ZOOM
 908                         };
 909
 910                         rect_set_min_size(&fmt, &min_rect);
 911                         if (!dev->has_compose_cap)
 912                                 rect_set_max_size(&fmt, &max_rect);
 913                         if (!rect_same_size(&dev->fmt_cap_rect, &fmt) &&
 914                             vb2_is_busy(&dev->vb_vid_cap_q))
 915                                 return -EBUSY;
 916                         if (dev->has_compose_cap) {
 917                                 rect_set_min_size(compose, &min_rect);
 918                                 rect_set_max_size(compose, &max_rect);
 919                         }
 920                         dev->fmt_cap_rect = fmt;
 921                         tpg_s_buf_height(&dev->tpg, fmt.height);
 922                 } else if (dev->has_compose_cap) {
 923                         struct v4l2_rect fmt = dev->fmt_cap_rect;
 924
 925                         rect_set_min_size(&fmt, &s->r);
 926                         if (!rect_same_size(&dev->fmt_cap_rect, &fmt) &&
 927                             vb2_is_busy(&dev->vb_vid_cap_q))
 928                                 return -EBUSY;
 929                         dev->fmt_cap_rect = fmt;
 930                         tpg_s_buf_height(&dev->tpg, fmt.height);
 931                         rect_set_size_to(compose, &s->r);
 932                         rect_map_inside(compose, &dev->fmt_cap_rect);
 933                 } else {
 934                         if (!rect_same_size(&s->r, &dev->fmt_cap_rect) &&
 935                             vb2_is_busy(&dev->vb_vid_cap_q))
 936                                 return -EBUSY;
 937                         rect_set_size_to(&dev->fmt_cap_rect, &s->r);
 938                         rect_set_size_to(compose, &s->r);
 939                         rect_map_inside(compose, &dev->fmt_cap_rect);
 940                         tpg_s_buf_height(&dev->tpg, dev->fmt_cap_rect.height);
 941                 }
 942                 s->r.top *= factor;
 943                 s->r.height *= factor;
 944                 *crop = s->r;
 945                 break;
 946         case V4L2_SEL_TGT_COMPOSE:
 947                 if (!dev->has_compose_cap)
 948                         return -EINVAL;
 949                 ret = vivid_vid_adjust_sel(s->flags, &s->r);
 950                 if (ret)
 951                         return ret;
 952                 rect_set_min_size(&s->r, &vivid_min_rect);
 953                 rect_set_max_size(&s->r, &dev->fmt_cap_rect);
 954                 if (dev->has_scaler_cap) {
 955                         struct v4l2_rect max_rect = {
 956                                 0, 0,
 957                                 dev->src_rect.width * MAX_ZOOM,
 958                                 (dev->src_rect.height / factor) * MAX_ZOOM
 959                         };
 960
 961                         rect_set_max_size(&s->r, &max_rect);
 962                         if (dev->has_crop_cap) {
 963                                 struct v4l2_rect min_rect = {
 964                                         0, 0,
 965                                         s->r.width / MAX_ZOOM,
 966                                         (s->r.height * factor) / MAX_ZOOM
 967                                 };
 968                                 struct v4l2_rect max_rect = {
 969                                         0, 0,
 970                                         s->r.width * MAX_ZOOM,
 971                                         (s->r.height * factor) * MAX_ZOOM
 972                                 };
 973
 974                                 rect_set_min_size(crop, &min_rect);
 975                                 rect_set_max_size(crop, &max_rect);
 976                                 rect_map_inside(crop, &dev->crop_bounds_cap);
 977                         }
 978                 } else if (dev->has_crop_cap) {
 979                         s->r.top *= factor;
 980                         s->r.height *= factor;
 981                         rect_set_max_size(&s->r, &dev->src_rect);
 982                         rect_set_size_to(crop, &s->r);
 983                         rect_map_inside(crop, &dev->crop_bounds_cap);
 984                         s->r.top /= factor;
 985                         s->r.height /= factor;
 986                 } else {
 987                         rect_set_size_to(&s->r, &dev->src_rect);
 988                         s->r.height /= factor;
 989                 }
 990                 rect_map_inside(&s->r, &dev->fmt_cap_rect);
 991                 if (dev->bitmap_cap && (compose->width != s->r.width ||
 992                                         compose->height != s->r.height)) {
 993                         kfree(dev->bitmap_cap);
 994                         dev->bitmap_cap = NULL;
 995                 }
 996                 *compose = s->r;
 997                 break;
 998         default:
 999                 return -EINVAL;
1000         }
1001
1002         tpg_s_crop_compose(&dev->tpg, crop, compose);
1003         return 0;
1004 }
1005
1006 int vivid_vid_cap_cropcap(struct file *file, void *priv,
1007                               struct v4l2_cropcap *cap)
1008 {
1009         struct vivid_dev *dev = video_drvdata(file);
1010
1011         if (cap->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
1012                 return -EINVAL;
1013
1014         switch (vivid_get_pixel_aspect(dev)) {
1015         case TPG_PIXEL_ASPECT_NTSC:
1016                 cap->pixelaspect.numerator = 11;
1017                 cap->pixelaspect.denominator = 10;
1018                 break;
1019         case TPG_PIXEL_ASPECT_PAL:
1020                 cap->pixelaspect.numerator = 54;
1021                 cap->pixelaspect.denominator = 59;
1022                 break;
1023         case TPG_PIXEL_ASPECT_SQUARE:
1024                 cap->pixelaspect.numerator = 1;
1025                 cap->pixelaspect.denominator = 1;
1026                 break;
1027         }
1028         return 0;
1029 }
1030
1031 int vidioc_enum_fmt_vid_overlay(struct file *file, void  *priv,
1032                                         struct v4l2_fmtdesc *f)
1033 {
1034         struct vivid_dev *dev = video_drvdata(file);
1035         const struct vivid_fmt *fmt;
1036
1037         if (dev->multiplanar)
1038                 return -ENOTTY;
1039
1040         if (f->index >= ARRAY_SIZE(formats_ovl))
1041                 return -EINVAL;
1042
1043         fmt = &formats_ovl[f->index];
1044
1045         f->pixelformat = fmt->fourcc;
1046         return 0;
1047 }
1048
1049 int vidioc_g_fmt_vid_overlay(struct file *file, void *priv,
1050                                         struct v4l2_format *f)
1051 {
1052         struct vivid_dev *dev = video_drvdata(file);
1053         const struct v4l2_rect *compose = &dev->compose_cap;
1054         struct v4l2_window *win = &f->fmt.win;
1055         unsigned clipcount = win->clipcount;
1056
1057         if (dev->multiplanar)
1058                 return -ENOTTY;
1059
1060         win->w.top = dev->overlay_cap_top;
1061         win->w.left = dev->overlay_cap_left;
1062         win->w.width = compose->width;
1063         win->w.height = compose->height;
1064         win->field = dev->overlay_cap_field;
1065         win->clipcount = dev->clipcount_cap;
1066         if (clipcount > dev->clipcount_cap)
1067                 clipcount = dev->clipcount_cap;
1068         if (dev->bitmap_cap == NULL)
1069                 win->bitmap = NULL;
1070         else if (win->bitmap) {
1071                 if (copy_to_user(win->bitmap, dev->bitmap_cap,
1072                     ((compose->width + 7) / 8) * compose->height))
1073                         return -EFAULT;
1074         }
1075         if (clipcount && win->clips) {
1076                 if (copy_to_user(win->clips, dev->clips_cap,
1077                                  clipcount * sizeof(dev->clips_cap[0])))
1078                         return -EFAULT;
1079         }
1080         return 0;
1081 }
1082
1083 int vidioc_try_fmt_vid_overlay(struct file *file, void *priv,
1084                                         struct v4l2_format *f)
1085 {
1086         struct vivid_dev *dev = video_drvdata(file);
1087         const struct v4l2_rect *compose = &dev->compose_cap;
1088         struct v4l2_window *win = &f->fmt.win;
1089         int i, j;
1090
1091         if (dev->multiplanar)
1092                 return -ENOTTY;
1093
1094         win->w.left = clamp_t(int, win->w.left,
1095                               -dev->fb_cap.fmt.width, dev->fb_cap.fmt.width);
1096         win->w.top = clamp_t(int, win->w.top,
1097                              -dev->fb_cap.fmt.height, dev->fb_cap.fmt.height);
1098         win->w.width = compose->width;
1099         win->w.height = compose->height;
1100         if (win->field != V4L2_FIELD_BOTTOM && win->field != V4L2_FIELD_TOP)
1101                 win->field = V4L2_FIELD_ANY;
1102         win->chromakey = 0;
1103         win->global_alpha = 0;
1104         if (win->clipcount && !win->clips)
1105                 win->clipcount = 0;
1106         if (win->clipcount > MAX_CLIPS)
1107                 win->clipcount = MAX_CLIPS;
1108         if (win->clipcount) {
1109                 if (copy_from_user(dev->try_clips_cap, win->clips,
1110                                    win->clipcount * sizeof(dev->clips_cap[0])))
1111                         return -EFAULT;
1112                 for (i = 0; i < win->clipcount; i++) {
1113                         struct v4l2_rect *r = &dev->try_clips_cap[i].c;
1114
1115                         r->top = clamp_t(s32, r->top, 0, dev->fb_cap.fmt.height - 1);
1116                         r->height = clamp_t(s32, r->height, 1, dev->fb_cap.fmt.height - r->top);
1117                         r->left = clamp_t(u32, r->left, 0, dev->fb_cap.fmt.width - 1);
1118                         r->width = clamp_t(u32, r->width, 1, dev->fb_cap.fmt.width - r->left);
1119                 }
1120                 /*
1121                  * Yeah, so sue me, it's an O(n^2) algorithm. But n is a small
1122                  * number and it's typically a one-time deal.
1123                  */
1124                 for (i = 0; i < win->clipcount - 1; i++) {
1125                         struct v4l2_rect *r1 = &dev->try_clips_cap[i].c;
1126
1127                         for (j = i + 1; j < win->clipcount; j++) {
1128                                 struct v4l2_rect *r2 = &dev->try_clips_cap[j].c;
1129
1130                                 if (rect_overlap(r1, r2))
1131                                         return -EINVAL;
1132                         }
1133                 }
1134                 if (copy_to_user(win->clips, dev->try_clips_cap,
1135                                  win->clipcount * sizeof(dev->clips_cap[0])))
1136                         return -EFAULT;
1137         }
1138         return 0;
1139 }
1140
1141 int vidioc_s_fmt_vid_overlay(struct file *file, void *priv,
1142                                         struct v4l2_format *f)
1143 {
1144         struct vivid_dev *dev = video_drvdata(file);
1145         const struct v4l2_rect *compose = &dev->compose_cap;
1146         struct v4l2_window *win = &f->fmt.win;
1147         int ret = vidioc_try_fmt_vid_overlay(file, priv, f);
1148         unsigned bitmap_size = ((compose->width + 7) / 8) * compose->height;
1149         unsigned clips_size = win->clipcount * sizeof(dev->clips_cap[0]);
1150         void *new_bitmap = NULL;
1151
1152         if (ret)
1153                 return ret;
1154
1155         if (win->bitmap) {
1156                 new_bitmap = vzalloc(bitmap_size);
1157
1158                 if (new_bitmap == NULL)
1159                         return -ENOMEM;
1160                 if (copy_from_user(new_bitmap, win->bitmap, bitmap_size)) {
1161                         vfree(new_bitmap);
1162                         return -EFAULT;
1163                 }
1164         }
1165
1166         dev->overlay_cap_top = win->w.top;
1167         dev->overlay_cap_left = win->w.left;
1168         dev->overlay_cap_field = win->field;
1169         vfree(dev->bitmap_cap);
1170         dev->bitmap_cap = new_bitmap;
1171         dev->clipcount_cap = win->clipcount;
1172         if (dev->clipcount_cap)
1173                 memcpy(dev->clips_cap, dev->try_clips_cap, clips_size);
1174         return 0;
1175 }
1176
1177 int vivid_vid_cap_overlay(struct file *file, void *fh, unsigned i)
1178 {
1179         struct vivid_dev *dev = video_drvdata(file);
1180
1181         if (dev->multiplanar)
1182                 return -ENOTTY;
1183
1184         if (i && dev->fb_vbase_cap == NULL)
1185                 return -EINVAL;
1186
1187         if (i && dev->fb_cap.fmt.pixelformat != dev->fmt_cap->fourcc) {
1188                 dprintk(dev, 1, "mismatch between overlay and video capture pixelformats\n");
1189                 return -EINVAL;
1190         }
1191
1192         if (dev->overlay_cap_owner && dev->overlay_cap_owner != fh)
1193                 return -EBUSY;
1194         dev->overlay_cap_owner = i ? fh : NULL;
1195         return 0;
1196 }
1197
1198 int vivid_vid_cap_g_fbuf(struct file *file, void *fh,
1199                                 struct v4l2_framebuffer *a)
1200 {
1201         struct vivid_dev *dev = video_drvdata(file);
1202
1203         if (dev->multiplanar)
1204                 return -ENOTTY;
1205
1206         *a = dev->fb_cap;
1207         a->capability = V4L2_FBUF_CAP_BITMAP_CLIPPING |
1208                         V4L2_FBUF_CAP_LIST_CLIPPING;
1209         a->flags = V4L2_FBUF_FLAG_PRIMARY;
1210         a->fmt.field = V4L2_FIELD_NONE;
1211         a->fmt.colorspace = V4L2_COLORSPACE_SRGB;
1212         a->fmt.priv = 0;
1213         return 0;
1214 }
1215
1216 int vivid_vid_cap_s_fbuf(struct file *file, void *fh,
1217                                 const struct v4l2_framebuffer *a)
1218 {
1219         struct vivid_dev *dev = video_drvdata(file);
1220         const struct vivid_fmt *fmt;
1221
1222         if (dev->multiplanar)
1223                 return -ENOTTY;
1224
1225         if (!capable(CAP_SYS_ADMIN) && !capable(CAP_SYS_RAWIO))
1226                 return -EPERM;
1227
1228         if (dev->overlay_cap_owner)
1229                 return -EBUSY;
1230
1231         if (a->base == NULL) {
1232                 dev->fb_cap.base = NULL;
1233                 dev->fb_vbase_cap = NULL;
1234                 return 0;
1235         }
1236
1237         if (a->fmt.width < 48 || a->fmt.height < 32)
1238                 return -EINVAL;
1239         fmt = vivid_get_format(dev, a->fmt.pixelformat);
1240         if (!fmt || !fmt->can_do_overlay)
1241                 return -EINVAL;
1242         if (a->fmt.bytesperline < (a->fmt.width * fmt->bit_depth[0]) / 8)
1243                 return -EINVAL;
1244         if (a->fmt.height * a->fmt.bytesperline < a->fmt.sizeimage)
1245                 return -EINVAL;
1246
1247         dev->fb_vbase_cap = phys_to_virt((unsigned long)a->base);
1248         dev->fb_cap = *a;
1249         dev->overlay_cap_left = clamp_t(int, dev->overlay_cap_left,
1250                                     -dev->fb_cap.fmt.width, dev->fb_cap.fmt.width);
1251         dev->overlay_cap_top = clamp_t(int, dev->overlay_cap_top,
1252                                    -dev->fb_cap.fmt.height, dev->fb_cap.fmt.height);
1253         return 0;
1254 }
1255
1256 static const struct v4l2_audio vivid_audio_inputs[] = {
1257         { 0, "TV", V4L2_AUDCAP_STEREO },
1258         { 1, "Line-In", V4L2_AUDCAP_STEREO },
1259 };
1260
1261 int vidioc_enum_input(struct file *file, void *priv,
1262                                 struct v4l2_input *inp)
1263 {
1264         struct vivid_dev *dev = video_drvdata(file);
1265
1266         if (inp->index >= dev->num_inputs)
1267                 return -EINVAL;
1268
1269         inp->type = V4L2_INPUT_TYPE_CAMERA;
1270         switch (dev->input_type[inp->index]) {
1271         case WEBCAM:
1272                 snprintf(inp->name, sizeof(inp->name), "Webcam %u",
1273                                 dev->input_name_counter[inp->index]);
1274                 inp->capabilities = 0;
1275                 break;
1276         case TV:
1277                 snprintf(inp->name, sizeof(inp->name), "TV %u",
1278                                 dev->input_name_counter[inp->index]);
1279                 inp->type = V4L2_INPUT_TYPE_TUNER;
1280                 inp->std = V4L2_STD_ALL;
1281                 if (dev->has_audio_inputs)
1282                         inp->audioset = (1 << ARRAY_SIZE(vivid_audio_inputs)) - 1;
1283                 inp->capabilities = V4L2_IN_CAP_STD;
1284                 break;
1285         case SVID:
1286                 snprintf(inp->name, sizeof(inp->name), "S-Video %u",
1287                                 dev->input_name_counter[inp->index]);
1288                 inp->std = V4L2_STD_ALL;
1289                 if (dev->has_audio_inputs)
1290                         inp->audioset = (1 << ARRAY_SIZE(vivid_audio_inputs)) - 1;
1291                 inp->capabilities = V4L2_IN_CAP_STD;
1292                 break;
1293         case HDMI:
1294                 snprintf(inp->name, sizeof(inp->name), "HDMI %u",
1295                                 dev->input_name_counter[inp->index]);
1296                 inp->capabilities = V4L2_IN_CAP_DV_TIMINGS;
1297                 if (dev->edid_blocks == 0 ||
1298                     dev->dv_timings_signal_mode == NO_SIGNAL)
1299                         inp->status |= V4L2_IN_ST_NO_SIGNAL;
1300                 else if (dev->dv_timings_signal_mode == NO_LOCK ||
1301                          dev->dv_timings_signal_mode == OUT_OF_RANGE)
1302                         inp->status |= V4L2_IN_ST_NO_H_LOCK;
1303                 break;
1304         }
1305         if (dev->sensor_hflip)
1306                 inp->status |= V4L2_IN_ST_HFLIP;
1307         if (dev->sensor_vflip)
1308                 inp->status |= V4L2_IN_ST_VFLIP;
1309         if (dev->input == inp->index && vivid_is_sdtv_cap(dev)) {
1310                 if (dev->std_signal_mode == NO_SIGNAL) {
1311                         inp->status |= V4L2_IN_ST_NO_SIGNAL;
1312                 } else if (dev->std_signal_mode == NO_LOCK) {
1313                         inp->status |= V4L2_IN_ST_NO_H_LOCK;
1314                 } else if (vivid_is_tv_cap(dev)) {
1315                         switch (tpg_g_quality(&dev->tpg)) {
1316                         case TPG_QUAL_GRAY:
1317                                 inp->status |= V4L2_IN_ST_COLOR_KILL;
1318                                 break;
1319                         case TPG_QUAL_NOISE:
1320                                 inp->status |= V4L2_IN_ST_NO_H_LOCK;
1321                                 break;
1322                         default:
1323                                 break;
1324                         }
1325                 }
1326         }
1327         return 0;
1328 }
1329
1330 int vidioc_g_input(struct file *file, void *priv, unsigned *i)
1331 {
1332         struct vivid_dev *dev = video_drvdata(file);
1333
1334         *i = dev->input;
1335         return 0;
1336 }
1337
1338 int vidioc_s_input(struct file *file, void *priv, unsigned i)
1339 {
1340         struct vivid_dev *dev = video_drvdata(file);
1341         struct v4l2_bt_timings *bt = &dev->dv_timings_cap.bt;
1342         unsigned brightness;
1343
1344         if (i >= dev->num_inputs)
1345                 return -EINVAL;
1346
1347         if (i == dev->input)
1348                 return 0;
1349
1350         if (vb2_is_busy(&dev->vb_vid_cap_q) || vb2_is_busy(&dev->vb_vbi_cap_q))
1351                 return -EBUSY;
1352
1353         dev->input = i;
1354         dev->vid_cap_dev.tvnorms = 0;
1355         if (dev->input_type[i] == TV || dev->input_type[i] == SVID) {
1356                 dev->tv_audio_input = (dev->input_type[i] == TV) ? 0 : 1;
1357                 dev->vid_cap_dev.tvnorms = V4L2_STD_ALL;
1358         }
1359         dev->vbi_cap_dev.tvnorms = dev->vid_cap_dev.tvnorms;
1360         vivid_update_format_cap(dev, false);
1361
1362         if (dev->colorspace) {
1363                 switch (dev->input_type[i]) {
1364                 case WEBCAM:
1365                         v4l2_ctrl_s_ctrl(dev->colorspace, VIVID_CS_SRGB);
1366                         break;
1367                 case TV:
1368                 case SVID:
1369                         v4l2_ctrl_s_ctrl(dev->colorspace, VIVID_CS_170M);
1370                         break;
1371                 case HDMI:
1372                         if (bt->flags & V4L2_DV_FL_IS_CE_VIDEO) {
1373                                 if (dev->src_rect.width == 720 && dev->src_rect.height <= 576)
1374                                         v4l2_ctrl_s_ctrl(dev->colorspace, VIVID_CS_170M);
1375                                 else
1376                                         v4l2_ctrl_s_ctrl(dev->colorspace, VIVID_CS_709);
1377                         } else {
1378                                 v4l2_ctrl_s_ctrl(dev->colorspace, VIVID_CS_SRGB);
1379                         }
1380                         break;
1381                 }
1382         }
1383
1384         /*
1385          * Modify the brightness range depending on the input.
1386          * This makes it easy to use vivid to test if applications can
1387          * handle control range modifications and is also how this is
1388          * typically used in practice as different inputs may be hooked
1389          * up to different receivers with different control ranges.
1390          */
1391         brightness = 128 * i + dev->input_brightness[i];
1392         v4l2_ctrl_modify_range(dev->brightness,
1393                         128 * i, 255 + 128 * i, 1, 128 + 128 * i);
1394         v4l2_ctrl_s_ctrl(dev->brightness, brightness);
1395         return 0;
1396 }
1397
1398 int vidioc_enumaudio(struct file *file, void *fh, struct v4l2_audio *vin)
1399 {
1400         if (vin->index >= ARRAY_SIZE(vivid_audio_inputs))
1401                 return -EINVAL;
1402         *vin = vivid_audio_inputs[vin->index];
1403         return 0;
1404 }
1405
1406 int vidioc_g_audio(struct file *file, void *fh, struct v4l2_audio *vin)
1407 {
1408         struct vivid_dev *dev = video_drvdata(file);
1409
1410         if (!vivid_is_sdtv_cap(dev))
1411                 return -EINVAL;
1412         *vin = vivid_audio_inputs[dev->tv_audio_input];
1413         return 0;
1414 }
1415
1416 int vidioc_s_audio(struct file *file, void *fh, const struct v4l2_audio *vin)
1417 {
1418         struct vivid_dev *dev = video_drvdata(file);
1419
1420         if (!vivid_is_sdtv_cap(dev))
1421                 return -EINVAL;
1422         if (vin->index >= ARRAY_SIZE(vivid_audio_inputs))
1423                 return -EINVAL;
1424         dev->tv_audio_input = vin->index;
1425         return 0;
1426 }
1427
1428 int vivid_video_g_frequency(struct file *file, void *fh, struct v4l2_frequency *vf)
1429 {
1430         struct vivid_dev *dev = video_drvdata(file);
1431
1432         if (vf->tuner != 0)
1433                 return -EINVAL;
1434         vf->frequency = dev->tv_freq;
1435         return 0;
1436 }
1437
1438 int vivid_video_s_frequency(struct file *file, void *fh, const struct v4l2_frequency *vf)
1439 {
1440         struct vivid_dev *dev = video_drvdata(file);
1441
1442         if (vf->tuner != 0)
1443                 return -EINVAL;
1444         dev->tv_freq = clamp_t(unsigned, vf->frequency, MIN_TV_FREQ, MAX_TV_FREQ);
1445         if (vivid_is_tv_cap(dev))
1446                 vivid_update_quality(dev);
1447         return 0;
1448 }
1449
1450 int vivid_video_s_tuner(struct file *file, void *fh, const struct v4l2_tuner *vt)
1451 {
1452         struct vivid_dev *dev = video_drvdata(file);
1453
1454         if (vt->index != 0)
1455                 return -EINVAL;
1456         if (vt->audmode > V4L2_TUNER_MODE_LANG1_LANG2)
1457                 return -EINVAL;
1458         dev->tv_audmode = vt->audmode;
1459         return 0;
1460 }
1461
1462 int vivid_video_g_tuner(struct file *file, void *fh, struct v4l2_tuner *vt)
1463 {
1464         struct vivid_dev *dev = video_drvdata(file);
1465         enum tpg_quality qual;
1466
1467         if (vt->index != 0)
1468                 return -EINVAL;
1469
1470         vt->capability = V4L2_TUNER_CAP_NORM | V4L2_TUNER_CAP_STEREO |
1471                          V4L2_TUNER_CAP_LANG1 | V4L2_TUNER_CAP_LANG2;
1472         vt->audmode = dev->tv_audmode;
1473         vt->rangelow = MIN_TV_FREQ;
1474         vt->rangehigh = MAX_TV_FREQ;
1475         qual = vivid_get_quality(dev, &vt->afc);
1476         if (qual == TPG_QUAL_COLOR)
1477                 vt->signal = 0xffff;
1478         else if (qual == TPG_QUAL_GRAY)
1479                 vt->signal = 0x8000;
1480         else
1481                 vt->signal = 0;
1482         if (qual == TPG_QUAL_NOISE) {
1483                 vt->rxsubchans = 0;
1484         } else if (qual == TPG_QUAL_GRAY) {
1485                 vt->rxsubchans = V4L2_TUNER_SUB_MONO;
1486         } else {
1487                 unsigned channel_nr = dev->tv_freq / (6 * 16);
1488                 unsigned options = (dev->std_cap & V4L2_STD_NTSC_M) ? 4 : 3;
1489
1490                 switch (channel_nr % options) {
1491                 case 0:
1492                         vt->rxsubchans = V4L2_TUNER_SUB_MONO;
1493                         break;
1494                 case 1:
1495                         vt->rxsubchans = V4L2_TUNER_SUB_STEREO;
1496                         break;
1497                 case 2:
1498                         if (dev->std_cap & V4L2_STD_NTSC_M)
1499                                 vt->rxsubchans = V4L2_TUNER_SUB_MONO | V4L2_TUNER_SUB_SAP;
1500                         else
1501                                 vt->rxsubchans = V4L2_TUNER_SUB_LANG1 | V4L2_TUNER_SUB_LANG2;
1502                         break;
1503                 case 3:
1504                         vt->rxsubchans = V4L2_TUNER_SUB_STEREO | V4L2_TUNER_SUB_SAP;
1505                         break;
1506                 }
1507         }
1508         strlcpy(vt->name, "TV Tuner", sizeof(vt->name));
1509         return 0;
1510 }
1511
1512 /* Must remain in sync with the vivid_ctrl_standard_strings array */
1513 const v4l2_std_id vivid_standard[] = {
1514         V4L2_STD_NTSC_M,
1515         V4L2_STD_NTSC_M_JP,
1516         V4L2_STD_NTSC_M_KR,
1517         V4L2_STD_NTSC_443,
1518         V4L2_STD_PAL_BG | V4L2_STD_PAL_H,
1519         V4L2_STD_PAL_I,
1520         V4L2_STD_PAL_DK,
1521         V4L2_STD_PAL_M,
1522         V4L2_STD_PAL_N,
1523         V4L2_STD_PAL_Nc,
1524         V4L2_STD_PAL_60,
1525         V4L2_STD_SECAM_B | V4L2_STD_SECAM_G | V4L2_STD_SECAM_H,
1526         V4L2_STD_SECAM_DK,
1527         V4L2_STD_SECAM_L,
1528         V4L2_STD_SECAM_LC,
1529         V4L2_STD_UNKNOWN
1530 };
1531
1532 /* Must remain in sync with the vivid_standard array */
1533 const char * const vivid_ctrl_standard_strings[] = {
1534         "NTSC-M",
1535         "NTSC-M-JP",
1536         "NTSC-M-KR",
1537         "NTSC-443",
1538         "PAL-BGH",
1539         "PAL-I",
1540         "PAL-DK",
1541         "PAL-M",
1542         "PAL-N",
1543         "PAL-Nc",
1544         "PAL-60",
1545         "SECAM-BGH",
1546         "SECAM-DK",
1547         "SECAM-L",
1548         "SECAM-Lc",
1549         NULL,
1550 };
1551
1552 int vidioc_querystd(struct file *file, void *priv, v4l2_std_id *id)
1553 {
1554         struct vivid_dev *dev = video_drvdata(file);
1555
1556         if (!vivid_is_sdtv_cap(dev))
1557                 return -ENODATA;
1558         if (dev->std_signal_mode == NO_SIGNAL ||
1559             dev->std_signal_mode == NO_LOCK) {
1560                 *id = V4L2_STD_UNKNOWN;
1561                 return 0;
1562         }
1563         if (vivid_is_tv_cap(dev) && tpg_g_quality(&dev->tpg) == TPG_QUAL_NOISE) {
1564                 *id = V4L2_STD_UNKNOWN;
1565         } else if (dev->std_signal_mode == CURRENT_STD) {
1566                 *id = dev->std_cap;
1567         } else if (dev->std_signal_mode == SELECTED_STD) {
1568                 *id = dev->query_std;
1569         } else {
1570                 *id = vivid_standard[dev->query_std_last];
1571                 dev->query_std_last = (dev->query_std_last + 1) % ARRAY_SIZE(vivid_standard);
1572         }
1573
1574         return 0;
1575 }
1576
1577 int vivid_vid_cap_s_std(struct file *file, void *priv, v4l2_std_id id)
1578 {
1579         struct vivid_dev *dev = video_drvdata(file);
1580
1581         if (!vivid_is_sdtv_cap(dev))
1582                 return -ENODATA;
1583         if (dev->std_cap == id)
1584                 return 0;
1585         if (vb2_is_busy(&dev->vb_vid_cap_q) || vb2_is_busy(&dev->vb_vbi_cap_q))
1586                 return -EBUSY;
1587         dev->std_cap = id;
1588         vivid_update_format_cap(dev, false);
1589         return 0;
1590 }
1591
1592 static void find_aspect_ratio(u32 width, u32 height,
1593                                u32 *num, u32 *denom)
1594 {
1595         if (!(height % 3) && ((height * 4 / 3) == width)) {
1596                 *num = 4;
1597                 *denom = 3;
1598         } else if (!(height % 9) && ((height * 16 / 9) == width)) {
1599                 *num = 16;
1600                 *denom = 9;
1601         } else if (!(height % 10) && ((height * 16 / 10) == width)) {
1602                 *num = 16;
1603                 *denom = 10;
1604         } else if (!(height % 4) && ((height * 5 / 4) == width)) {
1605                 *num = 5;
1606                 *denom = 4;
1607         } else if (!(height % 9) && ((height * 15 / 9) == width)) {
1608                 *num = 15;
1609                 *denom = 9;
1610         } else { /* default to 16:9 */
1611                 *num = 16;
1612                 *denom = 9;
1613         }
1614 }
1615
1616 static bool valid_cvt_gtf_timings(struct v4l2_dv_timings *timings)
1617 {
1618         struct v4l2_bt_timings *bt = &timings->bt;
1619         u32 total_h_pixel;
1620         u32 total_v_lines;
1621         u32 h_freq;
1622
1623         if (!v4l2_valid_dv_timings(timings, &vivid_dv_timings_cap,
1624                                 NULL, NULL))
1625                 return false;
1626
1627         total_h_pixel = V4L2_DV_BT_FRAME_WIDTH(bt);
1628         total_v_lines = V4L2_DV_BT_FRAME_HEIGHT(bt);
1629
1630         h_freq = (u32)bt->pixelclock / total_h_pixel;
1631
1632         if (bt->standards == 0 || (bt->standards & V4L2_DV_BT_STD_CVT)) {
1633                 if (v4l2_detect_cvt(total_v_lines, h_freq, bt->vsync, bt->width,
1634                                     bt->polarities, bt->interlaced, timings))
1635                         return true;
1636         }
1637
1638         if (bt->standards == 0 || (bt->standards & V4L2_DV_BT_STD_GTF)) {
1639                 struct v4l2_fract aspect_ratio;
1640
1641                 find_aspect_ratio(bt->width, bt->height,
1642                                   &aspect_ratio.numerator,
1643                                   &aspect_ratio.denominator);
1644                 if (v4l2_detect_gtf(total_v_lines, h_freq, bt->vsync,
1645                                     bt->polarities, bt->interlaced,
1646                                     aspect_ratio, timings))
1647                         return true;
1648         }
1649         return false;
1650 }
1651
1652 int vivid_vid_cap_s_dv_timings(struct file *file, void *_fh,
1653                                     struct v4l2_dv_timings *timings)
1654 {
1655         struct vivid_dev *dev = video_drvdata(file);
1656
1657         if (!vivid_is_hdmi_cap(dev))
1658                 return -ENODATA;
1659         if (!v4l2_find_dv_timings_cap(timings, &vivid_dv_timings_cap,
1660                                       0, NULL, NULL) &&
1661             !valid_cvt_gtf_timings(timings))
1662                 return -EINVAL;
1663
1664         if (v4l2_match_dv_timings(timings, &dev->dv_timings_cap, 0))
1665                 return 0;
1666         if (vb2_is_busy(&dev->vb_vid_cap_q))
1667                 return -EBUSY;
1668
1669         dev->dv_timings_cap = *timings;
1670         vivid_update_format_cap(dev, false);
1671         return 0;
1672 }
1673
1674 int vidioc_query_dv_timings(struct file *file, void *_fh,
1675                                     struct v4l2_dv_timings *timings)
1676 {
1677         struct vivid_dev *dev = video_drvdata(file);
1678
1679         if (!vivid_is_hdmi_cap(dev))
1680                 return -ENODATA;
1681         if (dev->dv_timings_signal_mode == NO_SIGNAL ||
1682             dev->edid_blocks == 0)
1683                 return -ENOLINK;
1684         if (dev->dv_timings_signal_mode == NO_LOCK)
1685                 return -ENOLCK;
1686         if (dev->dv_timings_signal_mode == OUT_OF_RANGE) {
1687                 timings->bt.pixelclock = vivid_dv_timings_cap.bt.max_pixelclock * 2;
1688                 return -ERANGE;
1689         }
1690         if (dev->dv_timings_signal_mode == CURRENT_DV_TIMINGS) {
1691                 *timings = dev->dv_timings_cap;
1692         } else if (dev->dv_timings_signal_mode == SELECTED_DV_TIMINGS) {
1693                 *timings = v4l2_dv_timings_presets[dev->query_dv_timings];
1694         } else {
1695                 *timings = v4l2_dv_timings_presets[dev->query_dv_timings_last];
1696                 dev->query_dv_timings_last = (dev->query_dv_timings_last + 1) %
1697                                                 dev->query_dv_timings_size;
1698         }
1699         return 0;
1700 }
1701
1702 int vidioc_s_edid(struct file *file, void *_fh,
1703                          struct v4l2_edid *edid)
1704 {
1705         struct vivid_dev *dev = video_drvdata(file);
1706
1707         memset(edid->reserved, 0, sizeof(edid->reserved));
1708         if (edid->pad >= dev->num_inputs)
1709                 return -EINVAL;
1710         if (dev->input_type[edid->pad] != HDMI || edid->start_block)
1711                 return -EINVAL;
1712         if (edid->blocks == 0) {
1713                 dev->edid_blocks = 0;
1714                 return 0;
1715         }
1716         if (edid->blocks > dev->edid_max_blocks) {
1717                 edid->blocks = dev->edid_max_blocks;
1718                 return -E2BIG;
1719         }
1720         dev->edid_blocks = edid->blocks;
1721         memcpy(dev->edid, edid->edid, edid->blocks * 128);
1722         return 0;
1723 }
1724
1725 int vidioc_enum_framesizes(struct file *file, void *fh,
1726                                          struct v4l2_frmsizeenum *fsize)
1727 {
1728         struct vivid_dev *dev = video_drvdata(file);
1729
1730         if (!vivid_is_webcam(dev) && !dev->has_scaler_cap)
1731                 return -EINVAL;
1732         if (vivid_get_format(dev, fsize->pixel_format) == NULL)
1733                 return -EINVAL;
1734         if (vivid_is_webcam(dev)) {
1735                 if (fsize->index >= ARRAY_SIZE(webcam_sizes))
1736                         return -EINVAL;
1737                 fsize->type = V4L2_FRMSIZE_TYPE_DISCRETE;
1738                 fsize->discrete = webcam_sizes[fsize->index];
1739                 return 0;
1740         }
1741         if (fsize->index)
1742                 return -EINVAL;
1743         fsize->type = V4L2_FRMSIZE_TYPE_STEPWISE;
1744         fsize->stepwise.min_width = MIN_WIDTH;
1745         fsize->stepwise.max_width = MAX_WIDTH * MAX_ZOOM;
1746         fsize->stepwise.step_width = 2;
1747         fsize->stepwise.min_height = MIN_HEIGHT;
1748         fsize->stepwise.max_height = MAX_HEIGHT * MAX_ZOOM;
1749         fsize->stepwise.step_height = 2;
1750         return 0;
1751 }
1752
1753 /* timeperframe is arbitrary and continuous */
1754 int vidioc_enum_frameintervals(struct file *file, void *priv,
1755                                              struct v4l2_frmivalenum *fival)
1756 {
1757         struct vivid_dev *dev = video_drvdata(file);
1758         const struct vivid_fmt *fmt;
1759         int i;
1760
1761         fmt = vivid_get_format(dev, fival->pixel_format);
1762         if (!fmt)
1763                 return -EINVAL;
1764
1765         if (!vivid_is_webcam(dev)) {
1766                 if (fival->index)
1767                         return -EINVAL;
1768                 if (fival->width < MIN_WIDTH || fival->width > MAX_WIDTH * MAX_ZOOM)
1769                         return -EINVAL;
1770                 if (fival->height < MIN_HEIGHT || fival->height > MAX_HEIGHT * MAX_ZOOM)
1771                         return -EINVAL;
1772                 fival->type = V4L2_FRMIVAL_TYPE_DISCRETE;
1773                 fival->discrete = dev->timeperframe_vid_cap;
1774                 return 0;
1775         }
1776
1777         for (i = 0; i < ARRAY_SIZE(webcam_sizes); i++)
1778                 if (fival->width == webcam_sizes[i].width &&
1779                     fival->height == webcam_sizes[i].height)
1780                         break;
1781         if (i == ARRAY_SIZE(webcam_sizes))
1782                 return -EINVAL;
1783         if (fival->index >= 2 * (VIVID_WEBCAM_SIZES - i))
1784                 return -EINVAL;
1785         fival->type = V4L2_FRMIVAL_TYPE_DISCRETE;
1786         fival->discrete = webcam_intervals[fival->index];
1787         return 0;
1788 }
1789
1790 int vivid_vid_cap_g_parm(struct file *file, void *priv,
1791                           struct v4l2_streamparm *parm)
1792 {
1793         struct vivid_dev *dev = video_drvdata(file);
1794
1795         if (parm->type != (dev->multiplanar ?
1796                            V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE :
1797                            V4L2_BUF_TYPE_VIDEO_CAPTURE))
1798                 return -EINVAL;
1799
1800         parm->parm.capture.capability   = V4L2_CAP_TIMEPERFRAME;
1801         parm->parm.capture.timeperframe = dev->timeperframe_vid_cap;
1802         parm->parm.capture.readbuffers  = 1;
1803         return 0;
1804 }
1805
1806 #define FRACT_CMP(a, OP, b)     \
1807         ((u64)(a).numerator * (b).denominator  OP  (u64)(b).numerator * (a).denominator)
1808
1809 int vivid_vid_cap_s_parm(struct file *file, void *priv,
1810                           struct v4l2_streamparm *parm)
1811 {
1812         struct vivid_dev *dev = video_drvdata(file);
1813         unsigned ival_sz = 2 * (VIVID_WEBCAM_SIZES - dev->webcam_size_idx);
1814         struct v4l2_fract tpf;
1815         unsigned i;
1816
1817         if (parm->type != (dev->multiplanar ?
1818                            V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE :
1819                            V4L2_BUF_TYPE_VIDEO_CAPTURE))
1820                 return -EINVAL;
1821         if (!vivid_is_webcam(dev))
1822                 return vivid_vid_cap_g_parm(file, priv, parm);
1823
1824         tpf = parm->parm.capture.timeperframe;
1825
1826         if (tpf.denominator == 0)
1827                 tpf = webcam_intervals[ival_sz - 1];
1828         for (i = 0; i < ival_sz; i++)
1829                 if (FRACT_CMP(tpf, >=, webcam_intervals[i]))
1830                         break;
1831         if (i == ival_sz)
1832                 i = ival_sz - 1;
1833         dev->webcam_ival_idx = i;
1834         tpf = webcam_intervals[dev->webcam_ival_idx];
1835         tpf = FRACT_CMP(tpf, <, tpf_min) ? tpf_min : tpf;
1836         tpf = FRACT_CMP(tpf, >, tpf_max) ? tpf_max : tpf;
1837
1838         /* resync the thread's timings */
1839         dev->cap_seq_resync = true;
1840         dev->timeperframe_vid_cap = tpf;
1841         parm->parm.capture.timeperframe = tpf;
1842         parm->parm.capture.readbuffers  = 1;
1843         return 0;
1844 }