GNU Linux-libre 4.19.281-gnu1
[releases.git] / drivers / media / platform / vivid / vivid-vid-cap.c
1 // SPDX-License-Identifier: GPL-2.0-only
2 /*
3  * vivid-vid-cap.c - video capture support functions.
4  *
5  * Copyright 2014 Cisco Systems, Inc. and/or its affiliates. All rights reserved.
6  */
7
8 #include <linux/errno.h>
9 #include <linux/kernel.h>
10 #include <linux/sched.h>
11 #include <linux/vmalloc.h>
12 #include <linux/videodev2.h>
13 #include <linux/v4l2-dv-timings.h>
14 #include <media/v4l2-common.h>
15 #include <media/v4l2-event.h>
16 #include <media/v4l2-dv-timings.h>
17 #include <media/v4l2-rect.h>
18
19 #include "vivid-core.h"
20 #include "vivid-vid-common.h"
21 #include "vivid-kthread-cap.h"
22 #include "vivid-vid-cap.h"
23
24 /* timeperframe: min/max and default */
25 static const struct v4l2_fract
26         tpf_min     = {.numerator = 1,          .denominator = FPS_MAX},
27         tpf_max     = {.numerator = FPS_MAX,    .denominator = 1};
28
29 static const struct vivid_fmt formats_ovl[] = {
30         {
31                 .fourcc   = V4L2_PIX_FMT_RGB565, /* gggbbbbb rrrrrggg */
32                 .vdownsampling = { 1 },
33                 .bit_depth = { 16 },
34                 .planes   = 1,
35                 .buffers = 1,
36         },
37         {
38                 .fourcc   = V4L2_PIX_FMT_XRGB555, /* gggbbbbb arrrrrgg */
39                 .vdownsampling = { 1 },
40                 .bit_depth = { 16 },
41                 .planes   = 1,
42                 .buffers = 1,
43         },
44         {
45                 .fourcc   = V4L2_PIX_FMT_ARGB555, /* gggbbbbb arrrrrgg */
46                 .vdownsampling = { 1 },
47                 .bit_depth = { 16 },
48                 .planes   = 1,
49                 .buffers = 1,
50         },
51 };
52
53 /* The number of discrete webcam framesizes */
54 #define VIVID_WEBCAM_SIZES 5
55 /* The number of discrete webcam frameintervals */
56 #define VIVID_WEBCAM_IVALS (VIVID_WEBCAM_SIZES * 2)
57
58 /* Sizes must be in increasing order */
59 static const struct v4l2_frmsize_discrete webcam_sizes[VIVID_WEBCAM_SIZES] = {
60         {  320, 180 },
61         {  640, 360 },
62         { 1280, 720 },
63         { 1920, 1080 },
64         { 3840, 2160 },
65 };
66
67 /*
68  * Intervals must be in increasing order and there must be twice as many
69  * elements in this array as there are in webcam_sizes.
70  */
71 static const struct v4l2_fract webcam_intervals[VIVID_WEBCAM_IVALS] = {
72         {  1, 1 },
73         {  1, 2 },
74         {  1, 4 },
75         {  1, 5 },
76         {  1, 10 },
77         {  1, 15 },
78         {  1, 25 },
79         {  1, 30 },
80         {  1, 50 },
81         {  1, 60 },
82 };
83
84 static int vid_cap_queue_setup(struct vb2_queue *vq,
85                        unsigned *nbuffers, unsigned *nplanes,
86                        unsigned sizes[], struct device *alloc_devs[])
87 {
88         struct vivid_dev *dev = vb2_get_drv_priv(vq);
89         unsigned buffers = tpg_g_buffers(&dev->tpg);
90         unsigned h = dev->fmt_cap_rect.height;
91         unsigned p;
92
93         if (dev->field_cap == V4L2_FIELD_ALTERNATE) {
94                 /*
95                  * You cannot use read() with FIELD_ALTERNATE since the field
96                  * information (TOP/BOTTOM) cannot be passed back to the user.
97                  */
98                 if (vb2_fileio_is_active(vq))
99                         return -EINVAL;
100         }
101
102         if (dev->queue_setup_error) {
103                 /*
104                  * Error injection: test what happens if queue_setup() returns
105                  * an error.
106                  */
107                 dev->queue_setup_error = false;
108                 return -EINVAL;
109         }
110         if (*nplanes) {
111                 /*
112                  * Check if the number of requested planes match
113                  * the number of buffers in the current format. You can't mix that.
114                  */
115                 if (*nplanes != buffers)
116                         return -EINVAL;
117                 for (p = 0; p < buffers; p++) {
118                         if (sizes[p] < tpg_g_line_width(&dev->tpg, p) * h +
119                                                 dev->fmt_cap->data_offset[p])
120                                 return -EINVAL;
121                 }
122         } else {
123                 for (p = 0; p < buffers; p++)
124                         sizes[p] = tpg_g_line_width(&dev->tpg, p) * h +
125                                         dev->fmt_cap->data_offset[p];
126         }
127
128         if (vq->num_buffers + *nbuffers < 2)
129                 *nbuffers = 2 - vq->num_buffers;
130
131         *nplanes = buffers;
132
133         dprintk(dev, 1, "%s: count=%d\n", __func__, *nbuffers);
134         for (p = 0; p < buffers; p++)
135                 dprintk(dev, 1, "%s: size[%u]=%u\n", __func__, p, sizes[p]);
136
137         return 0;
138 }
139
140 static int vid_cap_buf_prepare(struct vb2_buffer *vb)
141 {
142         struct vivid_dev *dev = vb2_get_drv_priv(vb->vb2_queue);
143         unsigned long size;
144         unsigned buffers = tpg_g_buffers(&dev->tpg);
145         unsigned p;
146
147         dprintk(dev, 1, "%s\n", __func__);
148
149         if (WARN_ON(NULL == dev->fmt_cap))
150                 return -EINVAL;
151
152         if (dev->buf_prepare_error) {
153                 /*
154                  * Error injection: test what happens if buf_prepare() returns
155                  * an error.
156                  */
157                 dev->buf_prepare_error = false;
158                 return -EINVAL;
159         }
160         for (p = 0; p < buffers; p++) {
161                 size = tpg_g_line_width(&dev->tpg, p) * dev->fmt_cap_rect.height +
162                         dev->fmt_cap->data_offset[p];
163
164                 if (vb2_plane_size(vb, p) < size) {
165                         dprintk(dev, 1, "%s data will not fit into plane %u (%lu < %lu)\n",
166                                         __func__, p, vb2_plane_size(vb, p), size);
167                         return -EINVAL;
168                 }
169
170                 vb2_set_plane_payload(vb, p, size);
171                 vb->planes[p].data_offset = dev->fmt_cap->data_offset[p];
172         }
173
174         return 0;
175 }
176
177 static void vid_cap_buf_finish(struct vb2_buffer *vb)
178 {
179         struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
180         struct vivid_dev *dev = vb2_get_drv_priv(vb->vb2_queue);
181         struct v4l2_timecode *tc = &vbuf->timecode;
182         unsigned fps = 25;
183         unsigned seq = vbuf->sequence;
184
185         if (!vivid_is_sdtv_cap(dev))
186                 return;
187
188         /*
189          * Set the timecode. Rarely used, so it is interesting to
190          * test this.
191          */
192         vbuf->flags |= V4L2_BUF_FLAG_TIMECODE;
193         if (dev->std_cap & V4L2_STD_525_60)
194                 fps = 30;
195         tc->type = (fps == 30) ? V4L2_TC_TYPE_30FPS : V4L2_TC_TYPE_25FPS;
196         tc->flags = 0;
197         tc->frames = seq % fps;
198         tc->seconds = (seq / fps) % 60;
199         tc->minutes = (seq / (60 * fps)) % 60;
200         tc->hours = (seq / (60 * 60 * fps)) % 24;
201 }
202
203 static void vid_cap_buf_queue(struct vb2_buffer *vb)
204 {
205         struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
206         struct vivid_dev *dev = vb2_get_drv_priv(vb->vb2_queue);
207         struct vivid_buffer *buf = container_of(vbuf, struct vivid_buffer, vb);
208
209         dprintk(dev, 1, "%s\n", __func__);
210
211         spin_lock(&dev->slock);
212         list_add_tail(&buf->list, &dev->vid_cap_active);
213         spin_unlock(&dev->slock);
214 }
215
216 static int vid_cap_start_streaming(struct vb2_queue *vq, unsigned count)
217 {
218         struct vivid_dev *dev = vb2_get_drv_priv(vq);
219         unsigned i;
220         int err;
221
222         if (vb2_is_streaming(&dev->vb_vid_out_q))
223                 dev->can_loop_video = vivid_vid_can_loop(dev);
224
225         dev->vid_cap_seq_count = 0;
226         dprintk(dev, 1, "%s\n", __func__);
227         for (i = 0; i < VIDEO_MAX_FRAME; i++)
228                 dev->must_blank[i] = tpg_g_perc_fill(&dev->tpg) < 100;
229         if (dev->start_streaming_error) {
230                 dev->start_streaming_error = false;
231                 err = -EINVAL;
232         } else {
233                 err = vivid_start_generating_vid_cap(dev, &dev->vid_cap_streaming);
234         }
235         if (err) {
236                 struct vivid_buffer *buf, *tmp;
237
238                 list_for_each_entry_safe(buf, tmp, &dev->vid_cap_active, list) {
239                         list_del(&buf->list);
240                         vb2_buffer_done(&buf->vb.vb2_buf,
241                                         VB2_BUF_STATE_QUEUED);
242                 }
243         }
244         return err;
245 }
246
247 /* abort streaming and wait for last buffer */
248 static void vid_cap_stop_streaming(struct vb2_queue *vq)
249 {
250         struct vivid_dev *dev = vb2_get_drv_priv(vq);
251
252         dprintk(dev, 1, "%s\n", __func__);
253         vivid_stop_generating_vid_cap(dev, &dev->vid_cap_streaming);
254         dev->can_loop_video = false;
255 }
256
257 const struct vb2_ops vivid_vid_cap_qops = {
258         .queue_setup            = vid_cap_queue_setup,
259         .buf_prepare            = vid_cap_buf_prepare,
260         .buf_finish             = vid_cap_buf_finish,
261         .buf_queue              = vid_cap_buf_queue,
262         .start_streaming        = vid_cap_start_streaming,
263         .stop_streaming         = vid_cap_stop_streaming,
264         .wait_prepare           = vb2_ops_wait_prepare,
265         .wait_finish            = vb2_ops_wait_finish,
266 };
267
268 /*
269  * Determine the 'picture' quality based on the current TV frequency: either
270  * COLOR for a good 'signal', GRAY (grayscale picture) for a slightly off
271  * signal or NOISE for no signal.
272  */
273 void vivid_update_quality(struct vivid_dev *dev)
274 {
275         unsigned freq_modulus;
276
277         if (dev->loop_video && (vivid_is_svid_cap(dev) || vivid_is_hdmi_cap(dev))) {
278                 /*
279                  * The 'noise' will only be replaced by the actual video
280                  * if the output video matches the input video settings.
281                  */
282                 tpg_s_quality(&dev->tpg, TPG_QUAL_NOISE, 0);
283                 return;
284         }
285         if (vivid_is_hdmi_cap(dev) && VIVID_INVALID_SIGNAL(dev->dv_timings_signal_mode)) {
286                 tpg_s_quality(&dev->tpg, TPG_QUAL_NOISE, 0);
287                 return;
288         }
289         if (vivid_is_sdtv_cap(dev) && VIVID_INVALID_SIGNAL(dev->std_signal_mode)) {
290                 tpg_s_quality(&dev->tpg, TPG_QUAL_NOISE, 0);
291                 return;
292         }
293         if (!vivid_is_tv_cap(dev)) {
294                 tpg_s_quality(&dev->tpg, TPG_QUAL_COLOR, 0);
295                 return;
296         }
297
298         /*
299          * There is a fake channel every 6 MHz at 49.25, 55.25, etc.
300          * From +/- 0.25 MHz around the channel there is color, and from
301          * +/- 1 MHz there is grayscale (chroma is lost).
302          * Everywhere else it is just noise.
303          */
304         freq_modulus = (dev->tv_freq - 676 /* (43.25-1) * 16 */) % (6 * 16);
305         if (freq_modulus > 2 * 16) {
306                 tpg_s_quality(&dev->tpg, TPG_QUAL_NOISE,
307                         next_pseudo_random32(dev->tv_freq ^ 0x55) & 0x3f);
308                 return;
309         }
310         if (freq_modulus < 12 /*0.75 * 16*/ || freq_modulus > 20 /*1.25 * 16*/)
311                 tpg_s_quality(&dev->tpg, TPG_QUAL_GRAY, 0);
312         else
313                 tpg_s_quality(&dev->tpg, TPG_QUAL_COLOR, 0);
314 }
315
316 /*
317  * Get the current picture quality and the associated afc value.
318  */
319 static enum tpg_quality vivid_get_quality(struct vivid_dev *dev, s32 *afc)
320 {
321         unsigned freq_modulus;
322
323         if (afc)
324                 *afc = 0;
325         if (tpg_g_quality(&dev->tpg) == TPG_QUAL_COLOR ||
326             tpg_g_quality(&dev->tpg) == TPG_QUAL_NOISE)
327                 return tpg_g_quality(&dev->tpg);
328
329         /*
330          * There is a fake channel every 6 MHz at 49.25, 55.25, etc.
331          * From +/- 0.25 MHz around the channel there is color, and from
332          * +/- 1 MHz there is grayscale (chroma is lost).
333          * Everywhere else it is just gray.
334          */
335         freq_modulus = (dev->tv_freq - 676 /* (43.25-1) * 16 */) % (6 * 16);
336         if (afc)
337                 *afc = freq_modulus - 1 * 16;
338         return TPG_QUAL_GRAY;
339 }
340
341 enum tpg_video_aspect vivid_get_video_aspect(const struct vivid_dev *dev)
342 {
343         if (vivid_is_sdtv_cap(dev))
344                 return dev->std_aspect_ratio;
345
346         if (vivid_is_hdmi_cap(dev))
347                 return dev->dv_timings_aspect_ratio;
348
349         return TPG_VIDEO_ASPECT_IMAGE;
350 }
351
352 static enum tpg_pixel_aspect vivid_get_pixel_aspect(const struct vivid_dev *dev)
353 {
354         if (vivid_is_sdtv_cap(dev))
355                 return (dev->std_cap & V4L2_STD_525_60) ?
356                         TPG_PIXEL_ASPECT_NTSC : TPG_PIXEL_ASPECT_PAL;
357
358         if (vivid_is_hdmi_cap(dev) &&
359             dev->src_rect.width == 720 && dev->src_rect.height <= 576)
360                 return dev->src_rect.height == 480 ?
361                         TPG_PIXEL_ASPECT_NTSC : TPG_PIXEL_ASPECT_PAL;
362
363         return TPG_PIXEL_ASPECT_SQUARE;
364 }
365
366 /*
367  * Called whenever the format has to be reset which can occur when
368  * changing inputs, standard, timings, etc.
369  */
370 void vivid_update_format_cap(struct vivid_dev *dev, bool keep_controls)
371 {
372         struct v4l2_bt_timings *bt = &dev->dv_timings_cap.bt;
373         unsigned size;
374         u64 pixelclock;
375
376         switch (dev->input_type[dev->input]) {
377         case WEBCAM:
378         default:
379                 dev->src_rect.width = webcam_sizes[dev->webcam_size_idx].width;
380                 dev->src_rect.height = webcam_sizes[dev->webcam_size_idx].height;
381                 dev->timeperframe_vid_cap = webcam_intervals[dev->webcam_ival_idx];
382                 dev->field_cap = V4L2_FIELD_NONE;
383                 tpg_s_rgb_range(&dev->tpg, V4L2_DV_RGB_RANGE_AUTO);
384                 break;
385         case TV:
386         case SVID:
387                 dev->field_cap = dev->tv_field_cap;
388                 dev->src_rect.width = 720;
389                 if (dev->std_cap & V4L2_STD_525_60) {
390                         dev->src_rect.height = 480;
391                         dev->timeperframe_vid_cap = (struct v4l2_fract) { 1001, 30000 };
392                         dev->service_set_cap = V4L2_SLICED_CAPTION_525;
393                 } else {
394                         dev->src_rect.height = 576;
395                         dev->timeperframe_vid_cap = (struct v4l2_fract) { 1000, 25000 };
396                         dev->service_set_cap = V4L2_SLICED_WSS_625 | V4L2_SLICED_TELETEXT_B;
397                 }
398                 tpg_s_rgb_range(&dev->tpg, V4L2_DV_RGB_RANGE_AUTO);
399                 break;
400         case HDMI:
401                 dev->src_rect.width = bt->width;
402                 dev->src_rect.height = bt->height;
403                 size = V4L2_DV_BT_FRAME_WIDTH(bt) * V4L2_DV_BT_FRAME_HEIGHT(bt);
404                 if (dev->reduced_fps && can_reduce_fps(bt)) {
405                         pixelclock = div_u64(bt->pixelclock * 1000, 1001);
406                         bt->flags |= V4L2_DV_FL_REDUCED_FPS;
407                 } else {
408                         pixelclock = bt->pixelclock;
409                         bt->flags &= ~V4L2_DV_FL_REDUCED_FPS;
410                 }
411                 dev->timeperframe_vid_cap = (struct v4l2_fract) {
412                         size / 100, (u32)pixelclock / 100
413                 };
414                 if (bt->interlaced)
415                         dev->field_cap = V4L2_FIELD_ALTERNATE;
416                 else
417                         dev->field_cap = V4L2_FIELD_NONE;
418
419                 /*
420                  * We can be called from within s_ctrl, in that case we can't
421                  * set/get controls. Luckily we don't need to in that case.
422                  */
423                 if (keep_controls || !dev->colorspace)
424                         break;
425                 if (bt->flags & V4L2_DV_FL_IS_CE_VIDEO) {
426                         if (bt->width == 720 && bt->height <= 576)
427                                 v4l2_ctrl_s_ctrl(dev->colorspace, VIVID_CS_170M);
428                         else
429                                 v4l2_ctrl_s_ctrl(dev->colorspace, VIVID_CS_709);
430                         v4l2_ctrl_s_ctrl(dev->real_rgb_range_cap, 1);
431                 } else {
432                         v4l2_ctrl_s_ctrl(dev->colorspace, VIVID_CS_SRGB);
433                         v4l2_ctrl_s_ctrl(dev->real_rgb_range_cap, 0);
434                 }
435                 tpg_s_rgb_range(&dev->tpg, v4l2_ctrl_g_ctrl(dev->rgb_range_cap));
436                 break;
437         }
438         vfree(dev->bitmap_cap);
439         dev->bitmap_cap = NULL;
440         vivid_update_quality(dev);
441         tpg_reset_source(&dev->tpg, dev->src_rect.width, dev->src_rect.height, dev->field_cap);
442         dev->crop_cap = dev->src_rect;
443         dev->crop_bounds_cap = dev->src_rect;
444         if (dev->bitmap_cap &&
445             (dev->compose_cap.width != dev->crop_cap.width ||
446              dev->compose_cap.height != dev->crop_cap.height)) {
447                 vfree(dev->bitmap_cap);
448                 dev->bitmap_cap = NULL;
449         }
450         dev->compose_cap = dev->crop_cap;
451         if (V4L2_FIELD_HAS_T_OR_B(dev->field_cap))
452                 dev->compose_cap.height /= 2;
453         dev->fmt_cap_rect = dev->compose_cap;
454         tpg_s_video_aspect(&dev->tpg, vivid_get_video_aspect(dev));
455         tpg_s_pixel_aspect(&dev->tpg, vivid_get_pixel_aspect(dev));
456         tpg_update_mv_step(&dev->tpg);
457 }
458
459 /* Map the field to something that is valid for the current input */
460 static enum v4l2_field vivid_field_cap(struct vivid_dev *dev, enum v4l2_field field)
461 {
462         if (vivid_is_sdtv_cap(dev)) {
463                 switch (field) {
464                 case V4L2_FIELD_INTERLACED_TB:
465                 case V4L2_FIELD_INTERLACED_BT:
466                 case V4L2_FIELD_SEQ_TB:
467                 case V4L2_FIELD_SEQ_BT:
468                 case V4L2_FIELD_TOP:
469                 case V4L2_FIELD_BOTTOM:
470                 case V4L2_FIELD_ALTERNATE:
471                         return field;
472                 case V4L2_FIELD_INTERLACED:
473                 default:
474                         return V4L2_FIELD_INTERLACED;
475                 }
476         }
477         if (vivid_is_hdmi_cap(dev))
478                 return dev->dv_timings_cap.bt.interlaced ? V4L2_FIELD_ALTERNATE :
479                                                        V4L2_FIELD_NONE;
480         return V4L2_FIELD_NONE;
481 }
482
483 static unsigned vivid_colorspace_cap(struct vivid_dev *dev)
484 {
485         if (!dev->loop_video || vivid_is_webcam(dev) || vivid_is_tv_cap(dev))
486                 return tpg_g_colorspace(&dev->tpg);
487         return dev->colorspace_out;
488 }
489
490 static unsigned vivid_xfer_func_cap(struct vivid_dev *dev)
491 {
492         if (!dev->loop_video || vivid_is_webcam(dev) || vivid_is_tv_cap(dev))
493                 return tpg_g_xfer_func(&dev->tpg);
494         return dev->xfer_func_out;
495 }
496
497 static unsigned vivid_ycbcr_enc_cap(struct vivid_dev *dev)
498 {
499         if (!dev->loop_video || vivid_is_webcam(dev) || vivid_is_tv_cap(dev))
500                 return tpg_g_ycbcr_enc(&dev->tpg);
501         return dev->ycbcr_enc_out;
502 }
503
504 static unsigned int vivid_hsv_enc_cap(struct vivid_dev *dev)
505 {
506         if (!dev->loop_video || vivid_is_webcam(dev) || vivid_is_tv_cap(dev))
507                 return tpg_g_hsv_enc(&dev->tpg);
508         return dev->hsv_enc_out;
509 }
510
511 static unsigned vivid_quantization_cap(struct vivid_dev *dev)
512 {
513         if (!dev->loop_video || vivid_is_webcam(dev) || vivid_is_tv_cap(dev))
514                 return tpg_g_quantization(&dev->tpg);
515         return dev->quantization_out;
516 }
517
518 int vivid_g_fmt_vid_cap(struct file *file, void *priv,
519                                         struct v4l2_format *f)
520 {
521         struct vivid_dev *dev = video_drvdata(file);
522         struct v4l2_pix_format_mplane *mp = &f->fmt.pix_mp;
523         unsigned p;
524
525         mp->width        = dev->fmt_cap_rect.width;
526         mp->height       = dev->fmt_cap_rect.height;
527         mp->field        = dev->field_cap;
528         mp->pixelformat  = dev->fmt_cap->fourcc;
529         mp->colorspace   = vivid_colorspace_cap(dev);
530         mp->xfer_func    = vivid_xfer_func_cap(dev);
531         if (dev->fmt_cap->color_enc == TGP_COLOR_ENC_HSV)
532                 mp->hsv_enc    = vivid_hsv_enc_cap(dev);
533         else
534                 mp->ycbcr_enc    = vivid_ycbcr_enc_cap(dev);
535         mp->quantization = vivid_quantization_cap(dev);
536         mp->num_planes = dev->fmt_cap->buffers;
537         for (p = 0; p < mp->num_planes; p++) {
538                 mp->plane_fmt[p].bytesperline = tpg_g_bytesperline(&dev->tpg, p);
539                 mp->plane_fmt[p].sizeimage =
540                         tpg_g_line_width(&dev->tpg, p) * mp->height +
541                         dev->fmt_cap->data_offset[p];
542         }
543         return 0;
544 }
545
546 int vivid_try_fmt_vid_cap(struct file *file, void *priv,
547                         struct v4l2_format *f)
548 {
549         struct v4l2_pix_format_mplane *mp = &f->fmt.pix_mp;
550         struct v4l2_plane_pix_format *pfmt = mp->plane_fmt;
551         struct vivid_dev *dev = video_drvdata(file);
552         const struct vivid_fmt *fmt;
553         unsigned bytesperline, max_bpl;
554         unsigned factor = 1;
555         unsigned w, h;
556         unsigned p;
557
558         fmt = vivid_get_format(dev, mp->pixelformat);
559         if (!fmt) {
560                 dprintk(dev, 1, "Fourcc format (0x%08x) unknown.\n",
561                         mp->pixelformat);
562                 mp->pixelformat = V4L2_PIX_FMT_YUYV;
563                 fmt = vivid_get_format(dev, mp->pixelformat);
564         }
565
566         mp->field = vivid_field_cap(dev, mp->field);
567         if (vivid_is_webcam(dev)) {
568                 const struct v4l2_frmsize_discrete *sz =
569                         v4l2_find_nearest_size(webcam_sizes,
570                                                VIVID_WEBCAM_SIZES, width,
571                                                height, mp->width, mp->height);
572
573                 w = sz->width;
574                 h = sz->height;
575         } else if (vivid_is_sdtv_cap(dev)) {
576                 w = 720;
577                 h = (dev->std_cap & V4L2_STD_525_60) ? 480 : 576;
578         } else {
579                 w = dev->src_rect.width;
580                 h = dev->src_rect.height;
581         }
582         if (V4L2_FIELD_HAS_T_OR_B(mp->field))
583                 factor = 2;
584         if (vivid_is_webcam(dev) ||
585             (!dev->has_scaler_cap && !dev->has_crop_cap && !dev->has_compose_cap)) {
586                 mp->width = w;
587                 mp->height = h / factor;
588         } else {
589                 struct v4l2_rect r = { 0, 0, mp->width, mp->height * factor };
590
591                 v4l2_rect_set_min_size(&r, &vivid_min_rect);
592                 v4l2_rect_set_max_size(&r, &vivid_max_rect);
593                 if (dev->has_scaler_cap && !dev->has_compose_cap) {
594                         struct v4l2_rect max_r = { 0, 0, MAX_ZOOM * w, MAX_ZOOM * h };
595
596                         v4l2_rect_set_max_size(&r, &max_r);
597                 } else if (!dev->has_scaler_cap && dev->has_crop_cap && !dev->has_compose_cap) {
598                         v4l2_rect_set_max_size(&r, &dev->src_rect);
599                 } else if (!dev->has_scaler_cap && !dev->has_crop_cap) {
600                         v4l2_rect_set_min_size(&r, &dev->src_rect);
601                 }
602                 mp->width = r.width;
603                 mp->height = r.height / factor;
604         }
605
606         /* This driver supports custom bytesperline values */
607
608         mp->num_planes = fmt->buffers;
609         for (p = 0; p < fmt->buffers; p++) {
610                 /* Calculate the minimum supported bytesperline value */
611                 bytesperline = (mp->width * fmt->bit_depth[p]) >> 3;
612                 /* Calculate the maximum supported bytesperline value */
613                 max_bpl = (MAX_ZOOM * MAX_WIDTH * fmt->bit_depth[p]) >> 3;
614
615                 if (pfmt[p].bytesperline > max_bpl)
616                         pfmt[p].bytesperline = max_bpl;
617                 if (pfmt[p].bytesperline < bytesperline)
618                         pfmt[p].bytesperline = bytesperline;
619
620                 pfmt[p].sizeimage = (pfmt[p].bytesperline * mp->height) /
621                                 fmt->vdownsampling[p] + fmt->data_offset[p];
622
623                 memset(pfmt[p].reserved, 0, sizeof(pfmt[p].reserved));
624         }
625         for (p = fmt->buffers; p < fmt->planes; p++)
626                 pfmt[0].sizeimage += (pfmt[0].bytesperline * mp->height *
627                         (fmt->bit_depth[p] / fmt->vdownsampling[p])) /
628                         (fmt->bit_depth[0] / fmt->vdownsampling[0]);
629
630         mp->colorspace = vivid_colorspace_cap(dev);
631         if (fmt->color_enc == TGP_COLOR_ENC_HSV)
632                 mp->hsv_enc = vivid_hsv_enc_cap(dev);
633         else
634                 mp->ycbcr_enc = vivid_ycbcr_enc_cap(dev);
635         mp->xfer_func = vivid_xfer_func_cap(dev);
636         mp->quantization = vivid_quantization_cap(dev);
637         memset(mp->reserved, 0, sizeof(mp->reserved));
638         return 0;
639 }
640
641 int vivid_s_fmt_vid_cap(struct file *file, void *priv,
642                                         struct v4l2_format *f)
643 {
644         struct v4l2_pix_format_mplane *mp = &f->fmt.pix_mp;
645         struct vivid_dev *dev = video_drvdata(file);
646         struct v4l2_rect *crop = &dev->crop_cap;
647         struct v4l2_rect *compose = &dev->compose_cap;
648         struct vb2_queue *q = &dev->vb_vid_cap_q;
649         int ret = vivid_try_fmt_vid_cap(file, priv, f);
650         unsigned factor = 1;
651         unsigned p;
652         unsigned i;
653
654         if (ret < 0)
655                 return ret;
656
657         if (vb2_is_busy(q)) {
658                 dprintk(dev, 1, "%s device busy\n", __func__);
659                 return -EBUSY;
660         }
661
662         if (dev->overlay_cap_owner && dev->fb_cap.fmt.pixelformat != mp->pixelformat) {
663                 dprintk(dev, 1, "overlay is active, can't change pixelformat\n");
664                 return -EBUSY;
665         }
666
667         dev->fmt_cap = vivid_get_format(dev, mp->pixelformat);
668         if (V4L2_FIELD_HAS_T_OR_B(mp->field))
669                 factor = 2;
670
671         /* Note: the webcam input doesn't support scaling, cropping or composing */
672
673         if (!vivid_is_webcam(dev) &&
674             (dev->has_scaler_cap || dev->has_crop_cap || dev->has_compose_cap)) {
675                 struct v4l2_rect r = { 0, 0, mp->width, mp->height };
676
677                 if (dev->has_scaler_cap) {
678                         if (dev->has_compose_cap)
679                                 v4l2_rect_map_inside(compose, &r);
680                         else
681                                 *compose = r;
682                         if (dev->has_crop_cap && !dev->has_compose_cap) {
683                                 struct v4l2_rect min_r = {
684                                         0, 0,
685                                         r.width / MAX_ZOOM,
686                                         factor * r.height / MAX_ZOOM
687                                 };
688                                 struct v4l2_rect max_r = {
689                                         0, 0,
690                                         r.width * MAX_ZOOM,
691                                         factor * r.height * MAX_ZOOM
692                                 };
693
694                                 v4l2_rect_set_min_size(crop, &min_r);
695                                 v4l2_rect_set_max_size(crop, &max_r);
696                                 v4l2_rect_map_inside(crop, &dev->crop_bounds_cap);
697                         } else if (dev->has_crop_cap) {
698                                 struct v4l2_rect min_r = {
699                                         0, 0,
700                                         compose->width / MAX_ZOOM,
701                                         factor * compose->height / MAX_ZOOM
702                                 };
703                                 struct v4l2_rect max_r = {
704                                         0, 0,
705                                         compose->width * MAX_ZOOM,
706                                         factor * compose->height * MAX_ZOOM
707                                 };
708
709                                 v4l2_rect_set_min_size(crop, &min_r);
710                                 v4l2_rect_set_max_size(crop, &max_r);
711                                 v4l2_rect_map_inside(crop, &dev->crop_bounds_cap);
712                         }
713                 } else if (dev->has_crop_cap && !dev->has_compose_cap) {
714                         r.height *= factor;
715                         v4l2_rect_set_size_to(crop, &r);
716                         v4l2_rect_map_inside(crop, &dev->crop_bounds_cap);
717                         r = *crop;
718                         r.height /= factor;
719                         v4l2_rect_set_size_to(compose, &r);
720                 } else if (!dev->has_crop_cap) {
721                         v4l2_rect_map_inside(compose, &r);
722                 } else {
723                         r.height *= factor;
724                         v4l2_rect_set_max_size(crop, &r);
725                         v4l2_rect_map_inside(crop, &dev->crop_bounds_cap);
726                         compose->top *= factor;
727                         compose->height *= factor;
728                         v4l2_rect_set_size_to(compose, crop);
729                         v4l2_rect_map_inside(compose, &r);
730                         compose->top /= factor;
731                         compose->height /= factor;
732                 }
733         } else if (vivid_is_webcam(dev)) {
734                 /* Guaranteed to be a match */
735                 for (i = 0; i < ARRAY_SIZE(webcam_sizes); i++)
736                         if (webcam_sizes[i].width == mp->width &&
737                                         webcam_sizes[i].height == mp->height)
738                                 break;
739                 dev->webcam_size_idx = i;
740                 if (dev->webcam_ival_idx >= 2 * (VIVID_WEBCAM_SIZES - i))
741                         dev->webcam_ival_idx = 2 * (VIVID_WEBCAM_SIZES - i) - 1;
742                 vivid_update_format_cap(dev, false);
743         } else {
744                 struct v4l2_rect r = { 0, 0, mp->width, mp->height };
745
746                 v4l2_rect_set_size_to(compose, &r);
747                 r.height *= factor;
748                 v4l2_rect_set_size_to(crop, &r);
749         }
750
751         dev->fmt_cap_rect.width = mp->width;
752         dev->fmt_cap_rect.height = mp->height;
753         tpg_s_buf_height(&dev->tpg, mp->height);
754         tpg_s_fourcc(&dev->tpg, dev->fmt_cap->fourcc);
755         for (p = 0; p < tpg_g_buffers(&dev->tpg); p++)
756                 tpg_s_bytesperline(&dev->tpg, p, mp->plane_fmt[p].bytesperline);
757         dev->field_cap = mp->field;
758         if (dev->field_cap == V4L2_FIELD_ALTERNATE)
759                 tpg_s_field(&dev->tpg, V4L2_FIELD_TOP, true);
760         else
761                 tpg_s_field(&dev->tpg, dev->field_cap, false);
762         tpg_s_crop_compose(&dev->tpg, &dev->crop_cap, &dev->compose_cap);
763         if (vivid_is_sdtv_cap(dev))
764                 dev->tv_field_cap = mp->field;
765         tpg_update_mv_step(&dev->tpg);
766         return 0;
767 }
768
769 int vidioc_g_fmt_vid_cap_mplane(struct file *file, void *priv,
770                                         struct v4l2_format *f)
771 {
772         struct vivid_dev *dev = video_drvdata(file);
773
774         if (!dev->multiplanar)
775                 return -ENOTTY;
776         return vivid_g_fmt_vid_cap(file, priv, f);
777 }
778
779 int vidioc_try_fmt_vid_cap_mplane(struct file *file, void *priv,
780                         struct v4l2_format *f)
781 {
782         struct vivid_dev *dev = video_drvdata(file);
783
784         if (!dev->multiplanar)
785                 return -ENOTTY;
786         return vivid_try_fmt_vid_cap(file, priv, f);
787 }
788
789 int vidioc_s_fmt_vid_cap_mplane(struct file *file, void *priv,
790                         struct v4l2_format *f)
791 {
792         struct vivid_dev *dev = video_drvdata(file);
793
794         if (!dev->multiplanar)
795                 return -ENOTTY;
796         return vivid_s_fmt_vid_cap(file, priv, f);
797 }
798
799 int vidioc_g_fmt_vid_cap(struct file *file, void *priv,
800                                         struct v4l2_format *f)
801 {
802         struct vivid_dev *dev = video_drvdata(file);
803
804         if (dev->multiplanar)
805                 return -ENOTTY;
806         return fmt_sp2mp_func(file, priv, f, vivid_g_fmt_vid_cap);
807 }
808
809 int vidioc_try_fmt_vid_cap(struct file *file, void *priv,
810                         struct v4l2_format *f)
811 {
812         struct vivid_dev *dev = video_drvdata(file);
813
814         if (dev->multiplanar)
815                 return -ENOTTY;
816         return fmt_sp2mp_func(file, priv, f, vivid_try_fmt_vid_cap);
817 }
818
819 int vidioc_s_fmt_vid_cap(struct file *file, void *priv,
820                         struct v4l2_format *f)
821 {
822         struct vivid_dev *dev = video_drvdata(file);
823
824         if (dev->multiplanar)
825                 return -ENOTTY;
826         return fmt_sp2mp_func(file, priv, f, vivid_s_fmt_vid_cap);
827 }
828
829 int vivid_vid_cap_g_selection(struct file *file, void *priv,
830                               struct v4l2_selection *sel)
831 {
832         struct vivid_dev *dev = video_drvdata(file);
833
834         if (!dev->has_crop_cap && !dev->has_compose_cap)
835                 return -ENOTTY;
836         if (sel->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
837                 return -EINVAL;
838         if (vivid_is_webcam(dev))
839                 return -ENODATA;
840
841         sel->r.left = sel->r.top = 0;
842         switch (sel->target) {
843         case V4L2_SEL_TGT_CROP:
844                 if (!dev->has_crop_cap)
845                         return -EINVAL;
846                 sel->r = dev->crop_cap;
847                 break;
848         case V4L2_SEL_TGT_CROP_DEFAULT:
849         case V4L2_SEL_TGT_CROP_BOUNDS:
850                 if (!dev->has_crop_cap)
851                         return -EINVAL;
852                 sel->r = dev->src_rect;
853                 break;
854         case V4L2_SEL_TGT_COMPOSE_BOUNDS:
855                 if (!dev->has_compose_cap)
856                         return -EINVAL;
857                 sel->r = vivid_max_rect;
858                 break;
859         case V4L2_SEL_TGT_COMPOSE:
860                 if (!dev->has_compose_cap)
861                         return -EINVAL;
862                 sel->r = dev->compose_cap;
863                 break;
864         case V4L2_SEL_TGT_COMPOSE_DEFAULT:
865                 if (!dev->has_compose_cap)
866                         return -EINVAL;
867                 sel->r = dev->fmt_cap_rect;
868                 break;
869         default:
870                 return -EINVAL;
871         }
872         return 0;
873 }
874
875 int vivid_vid_cap_s_selection(struct file *file, void *fh, struct v4l2_selection *s)
876 {
877         struct vivid_dev *dev = video_drvdata(file);
878         struct v4l2_rect *crop = &dev->crop_cap;
879         struct v4l2_rect *compose = &dev->compose_cap;
880         unsigned orig_compose_w = compose->width;
881         unsigned orig_compose_h = compose->height;
882         unsigned factor = V4L2_FIELD_HAS_T_OR_B(dev->field_cap) ? 2 : 1;
883         int ret;
884
885         if (!dev->has_crop_cap && !dev->has_compose_cap)
886                 return -ENOTTY;
887         if (s->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
888                 return -EINVAL;
889         if (vivid_is_webcam(dev))
890                 return -ENODATA;
891
892         switch (s->target) {
893         case V4L2_SEL_TGT_CROP:
894                 if (!dev->has_crop_cap)
895                         return -EINVAL;
896                 ret = vivid_vid_adjust_sel(s->flags, &s->r);
897                 if (ret)
898                         return ret;
899                 v4l2_rect_set_min_size(&s->r, &vivid_min_rect);
900                 v4l2_rect_set_max_size(&s->r, &dev->src_rect);
901                 v4l2_rect_map_inside(&s->r, &dev->crop_bounds_cap);
902                 s->r.top /= factor;
903                 s->r.height /= factor;
904                 if (dev->has_scaler_cap) {
905                         struct v4l2_rect fmt = dev->fmt_cap_rect;
906                         struct v4l2_rect max_rect = {
907                                 0, 0,
908                                 s->r.width * MAX_ZOOM,
909                                 s->r.height * MAX_ZOOM
910                         };
911                         struct v4l2_rect min_rect = {
912                                 0, 0,
913                                 s->r.width / MAX_ZOOM,
914                                 s->r.height / MAX_ZOOM
915                         };
916
917                         v4l2_rect_set_min_size(&fmt, &min_rect);
918                         if (!dev->has_compose_cap)
919                                 v4l2_rect_set_max_size(&fmt, &max_rect);
920                         if (!v4l2_rect_same_size(&dev->fmt_cap_rect, &fmt) &&
921                             vb2_is_busy(&dev->vb_vid_cap_q))
922                                 return -EBUSY;
923                         if (dev->has_compose_cap) {
924                                 v4l2_rect_set_min_size(compose, &min_rect);
925                                 v4l2_rect_set_max_size(compose, &max_rect);
926                                 v4l2_rect_map_inside(compose, &fmt);
927                         }
928                         dev->fmt_cap_rect = fmt;
929                         tpg_s_buf_height(&dev->tpg, fmt.height);
930                 } else if (dev->has_compose_cap) {
931                         struct v4l2_rect fmt = dev->fmt_cap_rect;
932
933                         v4l2_rect_set_min_size(&fmt, &s->r);
934                         if (!v4l2_rect_same_size(&dev->fmt_cap_rect, &fmt) &&
935                             vb2_is_busy(&dev->vb_vid_cap_q))
936                                 return -EBUSY;
937                         dev->fmt_cap_rect = fmt;
938                         tpg_s_buf_height(&dev->tpg, fmt.height);
939                         v4l2_rect_set_size_to(compose, &s->r);
940                         v4l2_rect_map_inside(compose, &dev->fmt_cap_rect);
941                 } else {
942                         if (!v4l2_rect_same_size(&s->r, &dev->fmt_cap_rect) &&
943                             vb2_is_busy(&dev->vb_vid_cap_q))
944                                 return -EBUSY;
945                         v4l2_rect_set_size_to(&dev->fmt_cap_rect, &s->r);
946                         v4l2_rect_set_size_to(compose, &s->r);
947                         v4l2_rect_map_inside(compose, &dev->fmt_cap_rect);
948                         tpg_s_buf_height(&dev->tpg, dev->fmt_cap_rect.height);
949                 }
950                 s->r.top *= factor;
951                 s->r.height *= factor;
952                 *crop = s->r;
953                 break;
954         case V4L2_SEL_TGT_COMPOSE:
955                 if (!dev->has_compose_cap)
956                         return -EINVAL;
957                 ret = vivid_vid_adjust_sel(s->flags, &s->r);
958                 if (ret)
959                         return ret;
960                 v4l2_rect_set_min_size(&s->r, &vivid_min_rect);
961                 v4l2_rect_set_max_size(&s->r, &dev->fmt_cap_rect);
962                 if (dev->has_scaler_cap) {
963                         struct v4l2_rect max_rect = {
964                                 0, 0,
965                                 dev->src_rect.width * MAX_ZOOM,
966                                 (dev->src_rect.height / factor) * MAX_ZOOM
967                         };
968
969                         v4l2_rect_set_max_size(&s->r, &max_rect);
970                         if (dev->has_crop_cap) {
971                                 struct v4l2_rect min_rect = {
972                                         0, 0,
973                                         s->r.width / MAX_ZOOM,
974                                         (s->r.height * factor) / MAX_ZOOM
975                                 };
976                                 struct v4l2_rect max_rect = {
977                                         0, 0,
978                                         s->r.width * MAX_ZOOM,
979                                         (s->r.height * factor) * MAX_ZOOM
980                                 };
981
982                                 v4l2_rect_set_min_size(crop, &min_rect);
983                                 v4l2_rect_set_max_size(crop, &max_rect);
984                                 v4l2_rect_map_inside(crop, &dev->crop_bounds_cap);
985                         }
986                 } else if (dev->has_crop_cap) {
987                         s->r.top *= factor;
988                         s->r.height *= factor;
989                         v4l2_rect_set_max_size(&s->r, &dev->src_rect);
990                         v4l2_rect_set_size_to(crop, &s->r);
991                         v4l2_rect_map_inside(crop, &dev->crop_bounds_cap);
992                         s->r.top /= factor;
993                         s->r.height /= factor;
994                 } else {
995                         v4l2_rect_set_size_to(&s->r, &dev->src_rect);
996                         s->r.height /= factor;
997                 }
998                 v4l2_rect_map_inside(&s->r, &dev->fmt_cap_rect);
999                 *compose = s->r;
1000                 break;
1001         default:
1002                 return -EINVAL;
1003         }
1004
1005         if (dev->bitmap_cap && (compose->width != orig_compose_w ||
1006                                 compose->height != orig_compose_h)) {
1007                 vfree(dev->bitmap_cap);
1008                 dev->bitmap_cap = NULL;
1009         }
1010         tpg_s_crop_compose(&dev->tpg, crop, compose);
1011         return 0;
1012 }
1013
1014 int vivid_vid_cap_cropcap(struct file *file, void *priv,
1015                               struct v4l2_cropcap *cap)
1016 {
1017         struct vivid_dev *dev = video_drvdata(file);
1018
1019         if (cap->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
1020                 return -EINVAL;
1021
1022         switch (vivid_get_pixel_aspect(dev)) {
1023         case TPG_PIXEL_ASPECT_NTSC:
1024                 cap->pixelaspect.numerator = 11;
1025                 cap->pixelaspect.denominator = 10;
1026                 break;
1027         case TPG_PIXEL_ASPECT_PAL:
1028                 cap->pixelaspect.numerator = 54;
1029                 cap->pixelaspect.denominator = 59;
1030                 break;
1031         case TPG_PIXEL_ASPECT_SQUARE:
1032                 cap->pixelaspect.numerator = 1;
1033                 cap->pixelaspect.denominator = 1;
1034                 break;
1035         }
1036         return 0;
1037 }
1038
1039 int vidioc_enum_fmt_vid_overlay(struct file *file, void  *priv,
1040                                         struct v4l2_fmtdesc *f)
1041 {
1042         struct vivid_dev *dev = video_drvdata(file);
1043         const struct vivid_fmt *fmt;
1044
1045         if (dev->multiplanar)
1046                 return -ENOTTY;
1047
1048         if (f->index >= ARRAY_SIZE(formats_ovl))
1049                 return -EINVAL;
1050
1051         fmt = &formats_ovl[f->index];
1052
1053         f->pixelformat = fmt->fourcc;
1054         return 0;
1055 }
1056
1057 int vidioc_g_fmt_vid_overlay(struct file *file, void *priv,
1058                                         struct v4l2_format *f)
1059 {
1060         struct vivid_dev *dev = video_drvdata(file);
1061         const struct v4l2_rect *compose = &dev->compose_cap;
1062         struct v4l2_window *win = &f->fmt.win;
1063         unsigned clipcount = win->clipcount;
1064
1065         if (dev->multiplanar)
1066                 return -ENOTTY;
1067
1068         win->w.top = dev->overlay_cap_top;
1069         win->w.left = dev->overlay_cap_left;
1070         win->w.width = compose->width;
1071         win->w.height = compose->height;
1072         win->field = dev->overlay_cap_field;
1073         win->clipcount = dev->clipcount_cap;
1074         if (clipcount > dev->clipcount_cap)
1075                 clipcount = dev->clipcount_cap;
1076         if (dev->bitmap_cap == NULL)
1077                 win->bitmap = NULL;
1078         else if (win->bitmap) {
1079                 if (copy_to_user(win->bitmap, dev->bitmap_cap,
1080                     ((compose->width + 7) / 8) * compose->height))
1081                         return -EFAULT;
1082         }
1083         if (clipcount && win->clips) {
1084                 if (copy_to_user(win->clips, dev->clips_cap,
1085                                  clipcount * sizeof(dev->clips_cap[0])))
1086                         return -EFAULT;
1087         }
1088         return 0;
1089 }
1090
1091 int vidioc_try_fmt_vid_overlay(struct file *file, void *priv,
1092                                         struct v4l2_format *f)
1093 {
1094         struct vivid_dev *dev = video_drvdata(file);
1095         const struct v4l2_rect *compose = &dev->compose_cap;
1096         struct v4l2_window *win = &f->fmt.win;
1097         int i, j;
1098
1099         if (dev->multiplanar)
1100                 return -ENOTTY;
1101
1102         win->w.left = clamp_t(int, win->w.left,
1103                               -dev->fb_cap.fmt.width, dev->fb_cap.fmt.width);
1104         win->w.top = clamp_t(int, win->w.top,
1105                              -dev->fb_cap.fmt.height, dev->fb_cap.fmt.height);
1106         win->w.width = compose->width;
1107         win->w.height = compose->height;
1108         if (win->field != V4L2_FIELD_BOTTOM && win->field != V4L2_FIELD_TOP)
1109                 win->field = V4L2_FIELD_ANY;
1110         win->chromakey = 0;
1111         win->global_alpha = 0;
1112         if (win->clipcount && !win->clips)
1113                 win->clipcount = 0;
1114         if (win->clipcount > MAX_CLIPS)
1115                 win->clipcount = MAX_CLIPS;
1116         if (win->clipcount) {
1117                 if (copy_from_user(dev->try_clips_cap, win->clips,
1118                                    win->clipcount * sizeof(dev->clips_cap[0])))
1119                         return -EFAULT;
1120                 for (i = 0; i < win->clipcount; i++) {
1121                         struct v4l2_rect *r = &dev->try_clips_cap[i].c;
1122
1123                         r->top = clamp_t(s32, r->top, 0, dev->fb_cap.fmt.height - 1);
1124                         r->height = clamp_t(s32, r->height, 1, dev->fb_cap.fmt.height - r->top);
1125                         r->left = clamp_t(u32, r->left, 0, dev->fb_cap.fmt.width - 1);
1126                         r->width = clamp_t(u32, r->width, 1, dev->fb_cap.fmt.width - r->left);
1127                 }
1128                 /*
1129                  * Yeah, so sue me, it's an O(n^2) algorithm. But n is a small
1130                  * number and it's typically a one-time deal.
1131                  */
1132                 for (i = 0; i < win->clipcount - 1; i++) {
1133                         struct v4l2_rect *r1 = &dev->try_clips_cap[i].c;
1134
1135                         for (j = i + 1; j < win->clipcount; j++) {
1136                                 struct v4l2_rect *r2 = &dev->try_clips_cap[j].c;
1137
1138                                 if (v4l2_rect_overlap(r1, r2))
1139                                         return -EINVAL;
1140                         }
1141                 }
1142                 if (copy_to_user(win->clips, dev->try_clips_cap,
1143                                  win->clipcount * sizeof(dev->clips_cap[0])))
1144                         return -EFAULT;
1145         }
1146         return 0;
1147 }
1148
1149 int vidioc_s_fmt_vid_overlay(struct file *file, void *priv,
1150                                         struct v4l2_format *f)
1151 {
1152         struct vivid_dev *dev = video_drvdata(file);
1153         const struct v4l2_rect *compose = &dev->compose_cap;
1154         struct v4l2_window *win = &f->fmt.win;
1155         int ret = vidioc_try_fmt_vid_overlay(file, priv, f);
1156         unsigned bitmap_size = ((compose->width + 7) / 8) * compose->height;
1157         unsigned clips_size = win->clipcount * sizeof(dev->clips_cap[0]);
1158         void *new_bitmap = NULL;
1159
1160         if (ret)
1161                 return ret;
1162
1163         if (win->bitmap) {
1164                 new_bitmap = vzalloc(bitmap_size);
1165
1166                 if (new_bitmap == NULL)
1167                         return -ENOMEM;
1168                 if (copy_from_user(new_bitmap, win->bitmap, bitmap_size)) {
1169                         vfree(new_bitmap);
1170                         return -EFAULT;
1171                 }
1172         }
1173
1174         dev->overlay_cap_top = win->w.top;
1175         dev->overlay_cap_left = win->w.left;
1176         dev->overlay_cap_field = win->field;
1177         vfree(dev->bitmap_cap);
1178         dev->bitmap_cap = new_bitmap;
1179         dev->clipcount_cap = win->clipcount;
1180         if (dev->clipcount_cap)
1181                 memcpy(dev->clips_cap, dev->try_clips_cap, clips_size);
1182         return 0;
1183 }
1184
1185 int vivid_vid_cap_overlay(struct file *file, void *fh, unsigned i)
1186 {
1187         struct vivid_dev *dev = video_drvdata(file);
1188
1189         if (dev->multiplanar)
1190                 return -ENOTTY;
1191
1192         if (i && dev->fb_vbase_cap == NULL)
1193                 return -EINVAL;
1194
1195         if (i && dev->fb_cap.fmt.pixelformat != dev->fmt_cap->fourcc) {
1196                 dprintk(dev, 1, "mismatch between overlay and video capture pixelformats\n");
1197                 return -EINVAL;
1198         }
1199
1200         if (dev->overlay_cap_owner && dev->overlay_cap_owner != fh)
1201                 return -EBUSY;
1202         dev->overlay_cap_owner = i ? fh : NULL;
1203         return 0;
1204 }
1205
1206 int vivid_vid_cap_g_fbuf(struct file *file, void *fh,
1207                                 struct v4l2_framebuffer *a)
1208 {
1209         struct vivid_dev *dev = video_drvdata(file);
1210
1211         if (dev->multiplanar)
1212                 return -ENOTTY;
1213
1214         *a = dev->fb_cap;
1215         a->capability = V4L2_FBUF_CAP_BITMAP_CLIPPING |
1216                         V4L2_FBUF_CAP_LIST_CLIPPING;
1217         a->flags = V4L2_FBUF_FLAG_PRIMARY;
1218         a->fmt.field = V4L2_FIELD_NONE;
1219         a->fmt.colorspace = V4L2_COLORSPACE_SRGB;
1220         a->fmt.priv = 0;
1221         return 0;
1222 }
1223
1224 int vivid_vid_cap_s_fbuf(struct file *file, void *fh,
1225                                 const struct v4l2_framebuffer *a)
1226 {
1227         struct vivid_dev *dev = video_drvdata(file);
1228         const struct vivid_fmt *fmt;
1229
1230         if (dev->multiplanar)
1231                 return -ENOTTY;
1232
1233         if (!capable(CAP_SYS_ADMIN) && !capable(CAP_SYS_RAWIO))
1234                 return -EPERM;
1235
1236         if (dev->overlay_cap_owner)
1237                 return -EBUSY;
1238
1239         if (a->base == NULL) {
1240                 dev->fb_cap.base = NULL;
1241                 dev->fb_vbase_cap = NULL;
1242                 return 0;
1243         }
1244
1245         if (a->fmt.width < 48 || a->fmt.height < 32)
1246                 return -EINVAL;
1247         fmt = vivid_get_format(dev, a->fmt.pixelformat);
1248         if (!fmt || !fmt->can_do_overlay)
1249                 return -EINVAL;
1250         if (a->fmt.bytesperline < (a->fmt.width * fmt->bit_depth[0]) / 8)
1251                 return -EINVAL;
1252         if (a->fmt.bytesperline > a->fmt.sizeimage / a->fmt.height)
1253                 return -EINVAL;
1254
1255         /*
1256          * Only support the framebuffer of one of the vivid instances.
1257          * Anything else is rejected.
1258          */
1259         if (!vivid_validate_fb(a))
1260                 return -EINVAL;
1261
1262         dev->fb_vbase_cap = phys_to_virt((unsigned long)a->base);
1263         dev->fb_cap = *a;
1264         dev->overlay_cap_left = clamp_t(int, dev->overlay_cap_left,
1265                                     -dev->fb_cap.fmt.width, dev->fb_cap.fmt.width);
1266         dev->overlay_cap_top = clamp_t(int, dev->overlay_cap_top,
1267                                    -dev->fb_cap.fmt.height, dev->fb_cap.fmt.height);
1268         return 0;
1269 }
1270
1271 static const struct v4l2_audio vivid_audio_inputs[] = {
1272         { 0, "TV", V4L2_AUDCAP_STEREO },
1273         { 1, "Line-In", V4L2_AUDCAP_STEREO },
1274 };
1275
1276 int vidioc_enum_input(struct file *file, void *priv,
1277                                 struct v4l2_input *inp)
1278 {
1279         struct vivid_dev *dev = video_drvdata(file);
1280
1281         if (inp->index >= dev->num_inputs)
1282                 return -EINVAL;
1283
1284         inp->type = V4L2_INPUT_TYPE_CAMERA;
1285         switch (dev->input_type[inp->index]) {
1286         case WEBCAM:
1287                 snprintf(inp->name, sizeof(inp->name), "Webcam %u",
1288                                 dev->input_name_counter[inp->index]);
1289                 inp->capabilities = 0;
1290                 break;
1291         case TV:
1292                 snprintf(inp->name, sizeof(inp->name), "TV %u",
1293                                 dev->input_name_counter[inp->index]);
1294                 inp->type = V4L2_INPUT_TYPE_TUNER;
1295                 inp->std = V4L2_STD_ALL;
1296                 if (dev->has_audio_inputs)
1297                         inp->audioset = (1 << ARRAY_SIZE(vivid_audio_inputs)) - 1;
1298                 inp->capabilities = V4L2_IN_CAP_STD;
1299                 break;
1300         case SVID:
1301                 snprintf(inp->name, sizeof(inp->name), "S-Video %u",
1302                                 dev->input_name_counter[inp->index]);
1303                 inp->std = V4L2_STD_ALL;
1304                 if (dev->has_audio_inputs)
1305                         inp->audioset = (1 << ARRAY_SIZE(vivid_audio_inputs)) - 1;
1306                 inp->capabilities = V4L2_IN_CAP_STD;
1307                 break;
1308         case HDMI:
1309                 snprintf(inp->name, sizeof(inp->name), "HDMI %u",
1310                                 dev->input_name_counter[inp->index]);
1311                 inp->capabilities = V4L2_IN_CAP_DV_TIMINGS;
1312                 if (dev->edid_blocks == 0 ||
1313                     dev->dv_timings_signal_mode == NO_SIGNAL)
1314                         inp->status |= V4L2_IN_ST_NO_SIGNAL;
1315                 else if (dev->dv_timings_signal_mode == NO_LOCK ||
1316                          dev->dv_timings_signal_mode == OUT_OF_RANGE)
1317                         inp->status |= V4L2_IN_ST_NO_H_LOCK;
1318                 break;
1319         }
1320         if (dev->sensor_hflip)
1321                 inp->status |= V4L2_IN_ST_HFLIP;
1322         if (dev->sensor_vflip)
1323                 inp->status |= V4L2_IN_ST_VFLIP;
1324         if (dev->input == inp->index && vivid_is_sdtv_cap(dev)) {
1325                 if (dev->std_signal_mode == NO_SIGNAL) {
1326                         inp->status |= V4L2_IN_ST_NO_SIGNAL;
1327                 } else if (dev->std_signal_mode == NO_LOCK) {
1328                         inp->status |= V4L2_IN_ST_NO_H_LOCK;
1329                 } else if (vivid_is_tv_cap(dev)) {
1330                         switch (tpg_g_quality(&dev->tpg)) {
1331                         case TPG_QUAL_GRAY:
1332                                 inp->status |= V4L2_IN_ST_COLOR_KILL;
1333                                 break;
1334                         case TPG_QUAL_NOISE:
1335                                 inp->status |= V4L2_IN_ST_NO_H_LOCK;
1336                                 break;
1337                         default:
1338                                 break;
1339                         }
1340                 }
1341         }
1342         return 0;
1343 }
1344
1345 int vidioc_g_input(struct file *file, void *priv, unsigned *i)
1346 {
1347         struct vivid_dev *dev = video_drvdata(file);
1348
1349         *i = dev->input;
1350         return 0;
1351 }
1352
1353 int vidioc_s_input(struct file *file, void *priv, unsigned i)
1354 {
1355         struct vivid_dev *dev = video_drvdata(file);
1356         struct v4l2_bt_timings *bt = &dev->dv_timings_cap.bt;
1357         unsigned brightness;
1358
1359         if (i >= dev->num_inputs)
1360                 return -EINVAL;
1361
1362         if (i == dev->input)
1363                 return 0;
1364
1365         if (vb2_is_busy(&dev->vb_vid_cap_q) || vb2_is_busy(&dev->vb_vbi_cap_q))
1366                 return -EBUSY;
1367
1368         dev->input = i;
1369         dev->vid_cap_dev.tvnorms = 0;
1370         if (dev->input_type[i] == TV || dev->input_type[i] == SVID) {
1371                 dev->tv_audio_input = (dev->input_type[i] == TV) ? 0 : 1;
1372                 dev->vid_cap_dev.tvnorms = V4L2_STD_ALL;
1373         }
1374         dev->vbi_cap_dev.tvnorms = dev->vid_cap_dev.tvnorms;
1375         vivid_update_format_cap(dev, false);
1376
1377         if (dev->colorspace) {
1378                 switch (dev->input_type[i]) {
1379                 case WEBCAM:
1380                         v4l2_ctrl_s_ctrl(dev->colorspace, VIVID_CS_SRGB);
1381                         break;
1382                 case TV:
1383                 case SVID:
1384                         v4l2_ctrl_s_ctrl(dev->colorspace, VIVID_CS_170M);
1385                         break;
1386                 case HDMI:
1387                         if (bt->flags & V4L2_DV_FL_IS_CE_VIDEO) {
1388                                 if (dev->src_rect.width == 720 && dev->src_rect.height <= 576)
1389                                         v4l2_ctrl_s_ctrl(dev->colorspace, VIVID_CS_170M);
1390                                 else
1391                                         v4l2_ctrl_s_ctrl(dev->colorspace, VIVID_CS_709);
1392                         } else {
1393                                 v4l2_ctrl_s_ctrl(dev->colorspace, VIVID_CS_SRGB);
1394                         }
1395                         break;
1396                 }
1397         }
1398
1399         /*
1400          * Modify the brightness range depending on the input.
1401          * This makes it easy to use vivid to test if applications can
1402          * handle control range modifications and is also how this is
1403          * typically used in practice as different inputs may be hooked
1404          * up to different receivers with different control ranges.
1405          */
1406         brightness = 128 * i + dev->input_brightness[i];
1407         v4l2_ctrl_modify_range(dev->brightness,
1408                         128 * i, 255 + 128 * i, 1, 128 + 128 * i);
1409         v4l2_ctrl_s_ctrl(dev->brightness, brightness);
1410         return 0;
1411 }
1412
1413 int vidioc_enumaudio(struct file *file, void *fh, struct v4l2_audio *vin)
1414 {
1415         if (vin->index >= ARRAY_SIZE(vivid_audio_inputs))
1416                 return -EINVAL;
1417         *vin = vivid_audio_inputs[vin->index];
1418         return 0;
1419 }
1420
1421 int vidioc_g_audio(struct file *file, void *fh, struct v4l2_audio *vin)
1422 {
1423         struct vivid_dev *dev = video_drvdata(file);
1424
1425         if (!vivid_is_sdtv_cap(dev))
1426                 return -EINVAL;
1427         *vin = vivid_audio_inputs[dev->tv_audio_input];
1428         return 0;
1429 }
1430
1431 int vidioc_s_audio(struct file *file, void *fh, const struct v4l2_audio *vin)
1432 {
1433         struct vivid_dev *dev = video_drvdata(file);
1434
1435         if (!vivid_is_sdtv_cap(dev))
1436                 return -EINVAL;
1437         if (vin->index >= ARRAY_SIZE(vivid_audio_inputs))
1438                 return -EINVAL;
1439         dev->tv_audio_input = vin->index;
1440         return 0;
1441 }
1442
1443 int vivid_video_g_frequency(struct file *file, void *fh, struct v4l2_frequency *vf)
1444 {
1445         struct vivid_dev *dev = video_drvdata(file);
1446
1447         if (vf->tuner != 0)
1448                 return -EINVAL;
1449         vf->frequency = dev->tv_freq;
1450         return 0;
1451 }
1452
1453 int vivid_video_s_frequency(struct file *file, void *fh, const struct v4l2_frequency *vf)
1454 {
1455         struct vivid_dev *dev = video_drvdata(file);
1456
1457         if (vf->tuner != 0)
1458                 return -EINVAL;
1459         dev->tv_freq = clamp_t(unsigned, vf->frequency, MIN_TV_FREQ, MAX_TV_FREQ);
1460         if (vivid_is_tv_cap(dev))
1461                 vivid_update_quality(dev);
1462         return 0;
1463 }
1464
1465 int vivid_video_s_tuner(struct file *file, void *fh, const struct v4l2_tuner *vt)
1466 {
1467         struct vivid_dev *dev = video_drvdata(file);
1468
1469         if (vt->index != 0)
1470                 return -EINVAL;
1471         if (vt->audmode > V4L2_TUNER_MODE_LANG1_LANG2)
1472                 return -EINVAL;
1473         dev->tv_audmode = vt->audmode;
1474         return 0;
1475 }
1476
1477 int vivid_video_g_tuner(struct file *file, void *fh, struct v4l2_tuner *vt)
1478 {
1479         struct vivid_dev *dev = video_drvdata(file);
1480         enum tpg_quality qual;
1481
1482         if (vt->index != 0)
1483                 return -EINVAL;
1484
1485         vt->capability = V4L2_TUNER_CAP_NORM | V4L2_TUNER_CAP_STEREO |
1486                          V4L2_TUNER_CAP_LANG1 | V4L2_TUNER_CAP_LANG2;
1487         vt->audmode = dev->tv_audmode;
1488         vt->rangelow = MIN_TV_FREQ;
1489         vt->rangehigh = MAX_TV_FREQ;
1490         qual = vivid_get_quality(dev, &vt->afc);
1491         if (qual == TPG_QUAL_COLOR)
1492                 vt->signal = 0xffff;
1493         else if (qual == TPG_QUAL_GRAY)
1494                 vt->signal = 0x8000;
1495         else
1496                 vt->signal = 0;
1497         if (qual == TPG_QUAL_NOISE) {
1498                 vt->rxsubchans = 0;
1499         } else if (qual == TPG_QUAL_GRAY) {
1500                 vt->rxsubchans = V4L2_TUNER_SUB_MONO;
1501         } else {
1502                 unsigned channel_nr = dev->tv_freq / (6 * 16);
1503                 unsigned options = (dev->std_cap & V4L2_STD_NTSC_M) ? 4 : 3;
1504
1505                 switch (channel_nr % options) {
1506                 case 0:
1507                         vt->rxsubchans = V4L2_TUNER_SUB_MONO;
1508                         break;
1509                 case 1:
1510                         vt->rxsubchans = V4L2_TUNER_SUB_STEREO;
1511                         break;
1512                 case 2:
1513                         if (dev->std_cap & V4L2_STD_NTSC_M)
1514                                 vt->rxsubchans = V4L2_TUNER_SUB_MONO | V4L2_TUNER_SUB_SAP;
1515                         else
1516                                 vt->rxsubchans = V4L2_TUNER_SUB_LANG1 | V4L2_TUNER_SUB_LANG2;
1517                         break;
1518                 case 3:
1519                         vt->rxsubchans = V4L2_TUNER_SUB_STEREO | V4L2_TUNER_SUB_SAP;
1520                         break;
1521                 }
1522         }
1523         strlcpy(vt->name, "TV Tuner", sizeof(vt->name));
1524         return 0;
1525 }
1526
1527 /* Must remain in sync with the vivid_ctrl_standard_strings array */
1528 const v4l2_std_id vivid_standard[] = {
1529         V4L2_STD_NTSC_M,
1530         V4L2_STD_NTSC_M_JP,
1531         V4L2_STD_NTSC_M_KR,
1532         V4L2_STD_NTSC_443,
1533         V4L2_STD_PAL_BG | V4L2_STD_PAL_H,
1534         V4L2_STD_PAL_I,
1535         V4L2_STD_PAL_DK,
1536         V4L2_STD_PAL_M,
1537         V4L2_STD_PAL_N,
1538         V4L2_STD_PAL_Nc,
1539         V4L2_STD_PAL_60,
1540         V4L2_STD_SECAM_B | V4L2_STD_SECAM_G | V4L2_STD_SECAM_H,
1541         V4L2_STD_SECAM_DK,
1542         V4L2_STD_SECAM_L,
1543         V4L2_STD_SECAM_LC,
1544         V4L2_STD_UNKNOWN
1545 };
1546
1547 /* Must remain in sync with the vivid_standard array */
1548 const char * const vivid_ctrl_standard_strings[] = {
1549         "NTSC-M",
1550         "NTSC-M-JP",
1551         "NTSC-M-KR",
1552         "NTSC-443",
1553         "PAL-BGH",
1554         "PAL-I",
1555         "PAL-DK",
1556         "PAL-M",
1557         "PAL-N",
1558         "PAL-Nc",
1559         "PAL-60",
1560         "SECAM-BGH",
1561         "SECAM-DK",
1562         "SECAM-L",
1563         "SECAM-Lc",
1564         NULL,
1565 };
1566
1567 int vidioc_querystd(struct file *file, void *priv, v4l2_std_id *id)
1568 {
1569         struct vivid_dev *dev = video_drvdata(file);
1570
1571         if (!vivid_is_sdtv_cap(dev))
1572                 return -ENODATA;
1573         if (dev->std_signal_mode == NO_SIGNAL ||
1574             dev->std_signal_mode == NO_LOCK) {
1575                 *id = V4L2_STD_UNKNOWN;
1576                 return 0;
1577         }
1578         if (vivid_is_tv_cap(dev) && tpg_g_quality(&dev->tpg) == TPG_QUAL_NOISE) {
1579                 *id = V4L2_STD_UNKNOWN;
1580         } else if (dev->std_signal_mode == CURRENT_STD) {
1581                 *id = dev->std_cap;
1582         } else if (dev->std_signal_mode == SELECTED_STD) {
1583                 *id = dev->query_std;
1584         } else {
1585                 *id = vivid_standard[dev->query_std_last];
1586                 dev->query_std_last = (dev->query_std_last + 1) % ARRAY_SIZE(vivid_standard);
1587         }
1588
1589         return 0;
1590 }
1591
1592 int vivid_vid_cap_s_std(struct file *file, void *priv, v4l2_std_id id)
1593 {
1594         struct vivid_dev *dev = video_drvdata(file);
1595
1596         if (!vivid_is_sdtv_cap(dev))
1597                 return -ENODATA;
1598         if (dev->std_cap == id)
1599                 return 0;
1600         if (vb2_is_busy(&dev->vb_vid_cap_q) || vb2_is_busy(&dev->vb_vbi_cap_q))
1601                 return -EBUSY;
1602         dev->std_cap = id;
1603         vivid_update_format_cap(dev, false);
1604         return 0;
1605 }
1606
1607 static void find_aspect_ratio(u32 width, u32 height,
1608                                u32 *num, u32 *denom)
1609 {
1610         if (!(height % 3) && ((height * 4 / 3) == width)) {
1611                 *num = 4;
1612                 *denom = 3;
1613         } else if (!(height % 9) && ((height * 16 / 9) == width)) {
1614                 *num = 16;
1615                 *denom = 9;
1616         } else if (!(height % 10) && ((height * 16 / 10) == width)) {
1617                 *num = 16;
1618                 *denom = 10;
1619         } else if (!(height % 4) && ((height * 5 / 4) == width)) {
1620                 *num = 5;
1621                 *denom = 4;
1622         } else if (!(height % 9) && ((height * 15 / 9) == width)) {
1623                 *num = 15;
1624                 *denom = 9;
1625         } else { /* default to 16:9 */
1626                 *num = 16;
1627                 *denom = 9;
1628         }
1629 }
1630
1631 static bool valid_cvt_gtf_timings(struct v4l2_dv_timings *timings)
1632 {
1633         struct v4l2_bt_timings *bt = &timings->bt;
1634         u32 total_h_pixel;
1635         u32 total_v_lines;
1636         u32 h_freq;
1637
1638         if (!v4l2_valid_dv_timings(timings, &vivid_dv_timings_cap,
1639                                 NULL, NULL))
1640                 return false;
1641
1642         total_h_pixel = V4L2_DV_BT_FRAME_WIDTH(bt);
1643         total_v_lines = V4L2_DV_BT_FRAME_HEIGHT(bt);
1644
1645         h_freq = (u32)bt->pixelclock / total_h_pixel;
1646
1647         if (bt->standards == 0 || (bt->standards & V4L2_DV_BT_STD_CVT)) {
1648                 if (v4l2_detect_cvt(total_v_lines, h_freq, bt->vsync, bt->width,
1649                                     bt->polarities, bt->interlaced, timings))
1650                         return true;
1651         }
1652
1653         if (bt->standards == 0 || (bt->standards & V4L2_DV_BT_STD_GTF)) {
1654                 struct v4l2_fract aspect_ratio;
1655
1656                 find_aspect_ratio(bt->width, bt->height,
1657                                   &aspect_ratio.numerator,
1658                                   &aspect_ratio.denominator);
1659                 if (v4l2_detect_gtf(total_v_lines, h_freq, bt->vsync,
1660                                     bt->polarities, bt->interlaced,
1661                                     aspect_ratio, timings))
1662                         return true;
1663         }
1664         return false;
1665 }
1666
1667 int vivid_vid_cap_s_dv_timings(struct file *file, void *_fh,
1668                                     struct v4l2_dv_timings *timings)
1669 {
1670         struct vivid_dev *dev = video_drvdata(file);
1671
1672         if (!vivid_is_hdmi_cap(dev))
1673                 return -ENODATA;
1674         if (!v4l2_find_dv_timings_cap(timings, &vivid_dv_timings_cap,
1675                                       0, NULL, NULL) &&
1676             !valid_cvt_gtf_timings(timings))
1677                 return -EINVAL;
1678
1679         if (v4l2_match_dv_timings(timings, &dev->dv_timings_cap, 0, false))
1680                 return 0;
1681         if (vb2_is_busy(&dev->vb_vid_cap_q))
1682                 return -EBUSY;
1683
1684         dev->dv_timings_cap = *timings;
1685         vivid_update_format_cap(dev, false);
1686         return 0;
1687 }
1688
1689 int vidioc_query_dv_timings(struct file *file, void *_fh,
1690                                     struct v4l2_dv_timings *timings)
1691 {
1692         struct vivid_dev *dev = video_drvdata(file);
1693
1694         if (!vivid_is_hdmi_cap(dev))
1695                 return -ENODATA;
1696         if (dev->dv_timings_signal_mode == NO_SIGNAL ||
1697             dev->edid_blocks == 0)
1698                 return -ENOLINK;
1699         if (dev->dv_timings_signal_mode == NO_LOCK)
1700                 return -ENOLCK;
1701         if (dev->dv_timings_signal_mode == OUT_OF_RANGE) {
1702                 timings->bt.pixelclock = vivid_dv_timings_cap.bt.max_pixelclock * 2;
1703                 return -ERANGE;
1704         }
1705         if (dev->dv_timings_signal_mode == CURRENT_DV_TIMINGS) {
1706                 *timings = dev->dv_timings_cap;
1707         } else if (dev->dv_timings_signal_mode == SELECTED_DV_TIMINGS) {
1708                 *timings = v4l2_dv_timings_presets[dev->query_dv_timings];
1709         } else {
1710                 *timings = v4l2_dv_timings_presets[dev->query_dv_timings_last];
1711                 dev->query_dv_timings_last = (dev->query_dv_timings_last + 1) %
1712                                                 dev->query_dv_timings_size;
1713         }
1714         return 0;
1715 }
1716
1717 int vidioc_s_edid(struct file *file, void *_fh,
1718                          struct v4l2_edid *edid)
1719 {
1720         struct vivid_dev *dev = video_drvdata(file);
1721         u16 phys_addr;
1722         unsigned int i;
1723         int ret;
1724
1725         memset(edid->reserved, 0, sizeof(edid->reserved));
1726         if (edid->pad >= dev->num_inputs)
1727                 return -EINVAL;
1728         if (dev->input_type[edid->pad] != HDMI || edid->start_block)
1729                 return -EINVAL;
1730         if (edid->blocks == 0) {
1731                 dev->edid_blocks = 0;
1732                 phys_addr = CEC_PHYS_ADDR_INVALID;
1733                 goto set_phys_addr;
1734         }
1735         if (edid->blocks > dev->edid_max_blocks) {
1736                 edid->blocks = dev->edid_max_blocks;
1737                 return -E2BIG;
1738         }
1739         phys_addr = cec_get_edid_phys_addr(edid->edid, edid->blocks * 128, NULL);
1740         ret = v4l2_phys_addr_validate(phys_addr, &phys_addr, NULL);
1741         if (ret)
1742                 return ret;
1743
1744         if (vb2_is_busy(&dev->vb_vid_cap_q))
1745                 return -EBUSY;
1746
1747         dev->edid_blocks = edid->blocks;
1748         memcpy(dev->edid, edid->edid, edid->blocks * 128);
1749
1750 set_phys_addr:
1751         /* TODO: a proper hotplug detect cycle should be emulated here */
1752         cec_s_phys_addr(dev->cec_rx_adap, phys_addr, false);
1753
1754         for (i = 0; i < MAX_OUTPUTS && dev->cec_tx_adap[i]; i++)
1755                 cec_s_phys_addr(dev->cec_tx_adap[i],
1756                                 v4l2_phys_addr_for_input(phys_addr, i + 1),
1757                                 false);
1758         return 0;
1759 }
1760
1761 int vidioc_enum_framesizes(struct file *file, void *fh,
1762                                          struct v4l2_frmsizeenum *fsize)
1763 {
1764         struct vivid_dev *dev = video_drvdata(file);
1765
1766         if (!vivid_is_webcam(dev) && !dev->has_scaler_cap)
1767                 return -EINVAL;
1768         if (vivid_get_format(dev, fsize->pixel_format) == NULL)
1769                 return -EINVAL;
1770         if (vivid_is_webcam(dev)) {
1771                 if (fsize->index >= ARRAY_SIZE(webcam_sizes))
1772                         return -EINVAL;
1773                 fsize->type = V4L2_FRMSIZE_TYPE_DISCRETE;
1774                 fsize->discrete = webcam_sizes[fsize->index];
1775                 return 0;
1776         }
1777         if (fsize->index)
1778                 return -EINVAL;
1779         fsize->type = V4L2_FRMSIZE_TYPE_STEPWISE;
1780         fsize->stepwise.min_width = MIN_WIDTH;
1781         fsize->stepwise.max_width = MAX_WIDTH * MAX_ZOOM;
1782         fsize->stepwise.step_width = 2;
1783         fsize->stepwise.min_height = MIN_HEIGHT;
1784         fsize->stepwise.max_height = MAX_HEIGHT * MAX_ZOOM;
1785         fsize->stepwise.step_height = 2;
1786         return 0;
1787 }
1788
1789 /* timeperframe is arbitrary and continuous */
1790 int vidioc_enum_frameintervals(struct file *file, void *priv,
1791                                              struct v4l2_frmivalenum *fival)
1792 {
1793         struct vivid_dev *dev = video_drvdata(file);
1794         const struct vivid_fmt *fmt;
1795         int i;
1796
1797         fmt = vivid_get_format(dev, fival->pixel_format);
1798         if (!fmt)
1799                 return -EINVAL;
1800
1801         if (!vivid_is_webcam(dev)) {
1802                 if (fival->index)
1803                         return -EINVAL;
1804                 if (fival->width < MIN_WIDTH || fival->width > MAX_WIDTH * MAX_ZOOM)
1805                         return -EINVAL;
1806                 if (fival->height < MIN_HEIGHT || fival->height > MAX_HEIGHT * MAX_ZOOM)
1807                         return -EINVAL;
1808                 fival->type = V4L2_FRMIVAL_TYPE_DISCRETE;
1809                 fival->discrete = dev->timeperframe_vid_cap;
1810                 return 0;
1811         }
1812
1813         for (i = 0; i < ARRAY_SIZE(webcam_sizes); i++)
1814                 if (fival->width == webcam_sizes[i].width &&
1815                     fival->height == webcam_sizes[i].height)
1816                         break;
1817         if (i == ARRAY_SIZE(webcam_sizes))
1818                 return -EINVAL;
1819         if (fival->index >= 2 * (VIVID_WEBCAM_SIZES - i))
1820                 return -EINVAL;
1821         fival->type = V4L2_FRMIVAL_TYPE_DISCRETE;
1822         fival->discrete = webcam_intervals[fival->index];
1823         return 0;
1824 }
1825
1826 int vivid_vid_cap_g_parm(struct file *file, void *priv,
1827                           struct v4l2_streamparm *parm)
1828 {
1829         struct vivid_dev *dev = video_drvdata(file);
1830
1831         if (parm->type != (dev->multiplanar ?
1832                            V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE :
1833                            V4L2_BUF_TYPE_VIDEO_CAPTURE))
1834                 return -EINVAL;
1835
1836         parm->parm.capture.capability   = V4L2_CAP_TIMEPERFRAME;
1837         parm->parm.capture.timeperframe = dev->timeperframe_vid_cap;
1838         parm->parm.capture.readbuffers  = 1;
1839         return 0;
1840 }
1841
1842 #define FRACT_CMP(a, OP, b)     \
1843         ((u64)(a).numerator * (b).denominator  OP  (u64)(b).numerator * (a).denominator)
1844
1845 int vivid_vid_cap_s_parm(struct file *file, void *priv,
1846                           struct v4l2_streamparm *parm)
1847 {
1848         struct vivid_dev *dev = video_drvdata(file);
1849         unsigned ival_sz = 2 * (VIVID_WEBCAM_SIZES - dev->webcam_size_idx);
1850         struct v4l2_fract tpf;
1851         unsigned i;
1852
1853         if (parm->type != (dev->multiplanar ?
1854                            V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE :
1855                            V4L2_BUF_TYPE_VIDEO_CAPTURE))
1856                 return -EINVAL;
1857         if (!vivid_is_webcam(dev))
1858                 return vivid_vid_cap_g_parm(file, priv, parm);
1859
1860         tpf = parm->parm.capture.timeperframe;
1861
1862         if (tpf.denominator == 0)
1863                 tpf = webcam_intervals[ival_sz - 1];
1864         for (i = 0; i < ival_sz; i++)
1865                 if (FRACT_CMP(tpf, >=, webcam_intervals[i]))
1866                         break;
1867         if (i == ival_sz)
1868                 i = ival_sz - 1;
1869         dev->webcam_ival_idx = i;
1870         tpf = webcam_intervals[dev->webcam_ival_idx];
1871         tpf = FRACT_CMP(tpf, <, tpf_min) ? tpf_min : tpf;
1872         tpf = FRACT_CMP(tpf, >, tpf_max) ? tpf_max : tpf;
1873
1874         /* resync the thread's timings */
1875         dev->cap_seq_resync = true;
1876         dev->timeperframe_vid_cap = tpf;
1877         parm->parm.capture.capability   = V4L2_CAP_TIMEPERFRAME;
1878         parm->parm.capture.timeperframe = tpf;
1879         parm->parm.capture.readbuffers  = 1;
1880         return 0;
1881 }