1 /*
2 * vivid-vid-out.c - video output 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/videodev2.h>
24 #include <linux/v4l2-dv-timings.h>
25 #include <media/v4l2-common.h>
26 #include <media/v4l2-event.h>
27 #include <media/v4l2-dv-timings.h>
28
29 #include "vivid-core.h"
30 #include "vivid-vid-common.h"
31 #include "vivid-kthread-out.h"
32 #include "vivid-vid-out.h"
33
vid_out_queue_setup(struct vb2_queue * vq,const void * parg,unsigned * nbuffers,unsigned * nplanes,unsigned sizes[],void * alloc_ctxs[])34 static int vid_out_queue_setup(struct vb2_queue *vq, const void *parg,
35 unsigned *nbuffers, unsigned *nplanes,
36 unsigned sizes[], void *alloc_ctxs[])
37 {
38 const struct v4l2_format *fmt = parg;
39 struct vivid_dev *dev = vb2_get_drv_priv(vq);
40 const struct vivid_fmt *vfmt = dev->fmt_out;
41 unsigned planes = vfmt->buffers;
42 unsigned h = dev->fmt_out_rect.height;
43 unsigned size = dev->bytesperline_out[0] * h;
44 unsigned p;
45
46 for (p = vfmt->buffers; p < vfmt->planes; p++)
47 size += dev->bytesperline_out[p] * h / vfmt->vdownsampling[p];
48
49 if (dev->field_out == V4L2_FIELD_ALTERNATE) {
50 /*
51 * You cannot use write() with FIELD_ALTERNATE since the field
52 * information (TOP/BOTTOM) cannot be passed to the kernel.
53 */
54 if (vb2_fileio_is_active(vq))
55 return -EINVAL;
56 }
57
58 if (dev->queue_setup_error) {
59 /*
60 * Error injection: test what happens if queue_setup() returns
61 * an error.
62 */
63 dev->queue_setup_error = false;
64 return -EINVAL;
65 }
66
67 if (fmt) {
68 const struct v4l2_pix_format_mplane *mp;
69 struct v4l2_format mp_fmt;
70
71 if (!V4L2_TYPE_IS_MULTIPLANAR(fmt->type)) {
72 fmt_sp2mp(fmt, &mp_fmt);
73 fmt = &mp_fmt;
74 }
75 mp = &fmt->fmt.pix_mp;
76 /*
77 * Check if the number of planes in the specified format match
78 * the number of planes in the current format. You can't mix that.
79 */
80 if (mp->num_planes != planes)
81 return -EINVAL;
82 sizes[0] = mp->plane_fmt[0].sizeimage;
83 if (sizes[0] < size)
84 return -EINVAL;
85 for (p = 1; p < planes; p++) {
86 sizes[p] = mp->plane_fmt[p].sizeimage;
87 if (sizes[p] < dev->bytesperline_out[p] * h)
88 return -EINVAL;
89 }
90 } else {
91 for (p = 0; p < planes; p++)
92 sizes[p] = p ? dev->bytesperline_out[p] * h : size;
93 }
94
95 if (vq->num_buffers + *nbuffers < 2)
96 *nbuffers = 2 - vq->num_buffers;
97
98 *nplanes = planes;
99
100 /*
101 * videobuf2-vmalloc allocator is context-less so no need to set
102 * alloc_ctxs array.
103 */
104
105 dprintk(dev, 1, "%s: count=%d\n", __func__, *nbuffers);
106 for (p = 0; p < planes; p++)
107 dprintk(dev, 1, "%s: size[%u]=%u\n", __func__, p, sizes[p]);
108 return 0;
109 }
110
vid_out_buf_prepare(struct vb2_buffer * vb)111 static int vid_out_buf_prepare(struct vb2_buffer *vb)
112 {
113 struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
114 struct vivid_dev *dev = vb2_get_drv_priv(vb->vb2_queue);
115 unsigned long size;
116 unsigned planes;
117 unsigned p;
118
119 dprintk(dev, 1, "%s\n", __func__);
120
121 if (WARN_ON(NULL == dev->fmt_out))
122 return -EINVAL;
123
124 planes = dev->fmt_out->planes;
125
126 if (dev->buf_prepare_error) {
127 /*
128 * Error injection: test what happens if buf_prepare() returns
129 * an error.
130 */
131 dev->buf_prepare_error = false;
132 return -EINVAL;
133 }
134
135 if (dev->field_out != V4L2_FIELD_ALTERNATE)
136 vbuf->field = dev->field_out;
137 else if (vbuf->field != V4L2_FIELD_TOP &&
138 vbuf->field != V4L2_FIELD_BOTTOM)
139 return -EINVAL;
140
141 for (p = 0; p < planes; p++) {
142 size = dev->bytesperline_out[p] * dev->fmt_out_rect.height +
143 vb->planes[p].data_offset;
144
145 if (vb2_get_plane_payload(vb, p) < size) {
146 dprintk(dev, 1, "%s the payload is too small for plane %u (%lu < %lu)\n",
147 __func__, p, vb2_get_plane_payload(vb, p), size);
148 return -EINVAL;
149 }
150 }
151
152 return 0;
153 }
154
vid_out_buf_queue(struct vb2_buffer * vb)155 static void vid_out_buf_queue(struct vb2_buffer *vb)
156 {
157 struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
158 struct vivid_dev *dev = vb2_get_drv_priv(vb->vb2_queue);
159 struct vivid_buffer *buf = container_of(vbuf, struct vivid_buffer, vb);
160
161 dprintk(dev, 1, "%s\n", __func__);
162
163 spin_lock(&dev->slock);
164 list_add_tail(&buf->list, &dev->vid_out_active);
165 spin_unlock(&dev->slock);
166 }
167
vid_out_start_streaming(struct vb2_queue * vq,unsigned count)168 static int vid_out_start_streaming(struct vb2_queue *vq, unsigned count)
169 {
170 struct vivid_dev *dev = vb2_get_drv_priv(vq);
171 int err;
172
173 if (vb2_is_streaming(&dev->vb_vid_cap_q))
174 dev->can_loop_video = vivid_vid_can_loop(dev);
175
176 if (dev->kthread_vid_out)
177 return 0;
178
179 dev->vid_out_seq_count = 0;
180 dprintk(dev, 1, "%s\n", __func__);
181 if (dev->start_streaming_error) {
182 dev->start_streaming_error = false;
183 err = -EINVAL;
184 } else {
185 err = vivid_start_generating_vid_out(dev, &dev->vid_out_streaming);
186 }
187 if (err) {
188 struct vivid_buffer *buf, *tmp;
189
190 list_for_each_entry_safe(buf, tmp, &dev->vid_out_active, list) {
191 list_del(&buf->list);
192 vb2_buffer_done(&buf->vb.vb2_buf,
193 VB2_BUF_STATE_QUEUED);
194 }
195 }
196 return err;
197 }
198
199 /* abort streaming and wait for last buffer */
vid_out_stop_streaming(struct vb2_queue * vq)200 static void vid_out_stop_streaming(struct vb2_queue *vq)
201 {
202 struct vivid_dev *dev = vb2_get_drv_priv(vq);
203
204 dprintk(dev, 1, "%s\n", __func__);
205 vivid_stop_generating_vid_out(dev, &dev->vid_out_streaming);
206 dev->can_loop_video = false;
207 }
208
209 const struct vb2_ops vivid_vid_out_qops = {
210 .queue_setup = vid_out_queue_setup,
211 .buf_prepare = vid_out_buf_prepare,
212 .buf_queue = vid_out_buf_queue,
213 .start_streaming = vid_out_start_streaming,
214 .stop_streaming = vid_out_stop_streaming,
215 .wait_prepare = vb2_ops_wait_prepare,
216 .wait_finish = vb2_ops_wait_finish,
217 };
218
219 /*
220 * Called whenever the format has to be reset which can occur when
221 * changing outputs, standard, timings, etc.
222 */
vivid_update_format_out(struct vivid_dev * dev)223 void vivid_update_format_out(struct vivid_dev *dev)
224 {
225 struct v4l2_bt_timings *bt = &dev->dv_timings_out.bt;
226 unsigned size, p;
227
228 switch (dev->output_type[dev->output]) {
229 case SVID:
230 default:
231 dev->field_out = dev->tv_field_out;
232 dev->sink_rect.width = 720;
233 if (dev->std_out & V4L2_STD_525_60) {
234 dev->sink_rect.height = 480;
235 dev->timeperframe_vid_out = (struct v4l2_fract) { 1001, 30000 };
236 dev->service_set_out = V4L2_SLICED_CAPTION_525;
237 } else {
238 dev->sink_rect.height = 576;
239 dev->timeperframe_vid_out = (struct v4l2_fract) { 1000, 25000 };
240 dev->service_set_out = V4L2_SLICED_WSS_625 | V4L2_SLICED_TELETEXT_B;
241 }
242 dev->colorspace_out = V4L2_COLORSPACE_SMPTE170M;
243 break;
244 case HDMI:
245 dev->sink_rect.width = bt->width;
246 dev->sink_rect.height = bt->height;
247 size = V4L2_DV_BT_FRAME_WIDTH(bt) * V4L2_DV_BT_FRAME_HEIGHT(bt);
248 dev->timeperframe_vid_out = (struct v4l2_fract) {
249 size / 100, (u32)bt->pixelclock / 100
250 };
251 if (bt->interlaced)
252 dev->field_out = V4L2_FIELD_ALTERNATE;
253 else
254 dev->field_out = V4L2_FIELD_NONE;
255 if (!dev->dvi_d_out && (bt->flags & V4L2_DV_FL_IS_CE_VIDEO)) {
256 if (bt->width == 720 && bt->height <= 576)
257 dev->colorspace_out = V4L2_COLORSPACE_SMPTE170M;
258 else
259 dev->colorspace_out = V4L2_COLORSPACE_REC709;
260 } else {
261 dev->colorspace_out = V4L2_COLORSPACE_SRGB;
262 }
263 break;
264 }
265 dev->xfer_func_out = V4L2_XFER_FUNC_DEFAULT;
266 dev->ycbcr_enc_out = V4L2_YCBCR_ENC_DEFAULT;
267 dev->quantization_out = V4L2_QUANTIZATION_DEFAULT;
268 dev->compose_out = dev->sink_rect;
269 dev->compose_bounds_out = dev->sink_rect;
270 dev->crop_out = dev->compose_out;
271 if (V4L2_FIELD_HAS_T_OR_B(dev->field_out))
272 dev->crop_out.height /= 2;
273 dev->fmt_out_rect = dev->crop_out;
274 for (p = 0; p < dev->fmt_out->planes; p++)
275 dev->bytesperline_out[p] =
276 (dev->sink_rect.width * dev->fmt_out->bit_depth[p]) / 8;
277 }
278
279 /* Map the field to something that is valid for the current output */
vivid_field_out(struct vivid_dev * dev,enum v4l2_field field)280 static enum v4l2_field vivid_field_out(struct vivid_dev *dev, enum v4l2_field field)
281 {
282 if (vivid_is_svid_out(dev)) {
283 switch (field) {
284 case V4L2_FIELD_INTERLACED_TB:
285 case V4L2_FIELD_INTERLACED_BT:
286 case V4L2_FIELD_SEQ_TB:
287 case V4L2_FIELD_SEQ_BT:
288 case V4L2_FIELD_ALTERNATE:
289 return field;
290 case V4L2_FIELD_INTERLACED:
291 default:
292 return V4L2_FIELD_INTERLACED;
293 }
294 }
295 if (vivid_is_hdmi_out(dev))
296 return dev->dv_timings_out.bt.interlaced ? V4L2_FIELD_ALTERNATE :
297 V4L2_FIELD_NONE;
298 return V4L2_FIELD_NONE;
299 }
300
vivid_get_pixel_aspect(const struct vivid_dev * dev)301 static enum tpg_pixel_aspect vivid_get_pixel_aspect(const struct vivid_dev *dev)
302 {
303 if (vivid_is_svid_out(dev))
304 return (dev->std_out & V4L2_STD_525_60) ?
305 TPG_PIXEL_ASPECT_NTSC : TPG_PIXEL_ASPECT_PAL;
306
307 if (vivid_is_hdmi_out(dev) &&
308 dev->sink_rect.width == 720 && dev->sink_rect.height <= 576)
309 return dev->sink_rect.height == 480 ?
310 TPG_PIXEL_ASPECT_NTSC : TPG_PIXEL_ASPECT_PAL;
311
312 return TPG_PIXEL_ASPECT_SQUARE;
313 }
314
vivid_g_fmt_vid_out(struct file * file,void * priv,struct v4l2_format * f)315 int vivid_g_fmt_vid_out(struct file *file, void *priv,
316 struct v4l2_format *f)
317 {
318 struct vivid_dev *dev = video_drvdata(file);
319 struct v4l2_pix_format_mplane *mp = &f->fmt.pix_mp;
320 const struct vivid_fmt *fmt = dev->fmt_out;
321 unsigned p;
322
323 mp->width = dev->fmt_out_rect.width;
324 mp->height = dev->fmt_out_rect.height;
325 mp->field = dev->field_out;
326 mp->pixelformat = fmt->fourcc;
327 mp->colorspace = dev->colorspace_out;
328 mp->xfer_func = dev->xfer_func_out;
329 mp->ycbcr_enc = dev->ycbcr_enc_out;
330 mp->quantization = dev->quantization_out;
331 mp->num_planes = fmt->buffers;
332 for (p = 0; p < mp->num_planes; p++) {
333 mp->plane_fmt[p].bytesperline = dev->bytesperline_out[p];
334 mp->plane_fmt[p].sizeimage =
335 mp->plane_fmt[p].bytesperline * mp->height;
336 }
337 for (p = fmt->buffers; p < fmt->planes; p++) {
338 unsigned stride = dev->bytesperline_out[p];
339
340 mp->plane_fmt[0].sizeimage +=
341 (stride * mp->height) / fmt->vdownsampling[p];
342 }
343 return 0;
344 }
345
vivid_try_fmt_vid_out(struct file * file,void * priv,struct v4l2_format * f)346 int vivid_try_fmt_vid_out(struct file *file, void *priv,
347 struct v4l2_format *f)
348 {
349 struct vivid_dev *dev = video_drvdata(file);
350 struct v4l2_bt_timings *bt = &dev->dv_timings_out.bt;
351 struct v4l2_pix_format_mplane *mp = &f->fmt.pix_mp;
352 struct v4l2_plane_pix_format *pfmt = mp->plane_fmt;
353 const struct vivid_fmt *fmt;
354 unsigned bytesperline, max_bpl;
355 unsigned factor = 1;
356 unsigned w, h;
357 unsigned p;
358
359 fmt = vivid_get_format(dev, mp->pixelformat);
360 if (!fmt) {
361 dprintk(dev, 1, "Fourcc format (0x%08x) unknown.\n",
362 mp->pixelformat);
363 mp->pixelformat = V4L2_PIX_FMT_YUYV;
364 fmt = vivid_get_format(dev, mp->pixelformat);
365 }
366
367 mp->field = vivid_field_out(dev, mp->field);
368 if (vivid_is_svid_out(dev)) {
369 w = 720;
370 h = (dev->std_out & V4L2_STD_525_60) ? 480 : 576;
371 } else {
372 w = dev->sink_rect.width;
373 h = dev->sink_rect.height;
374 }
375 if (V4L2_FIELD_HAS_T_OR_B(mp->field))
376 factor = 2;
377 if (!dev->has_scaler_out && !dev->has_crop_out && !dev->has_compose_out) {
378 mp->width = w;
379 mp->height = h / factor;
380 } else {
381 struct v4l2_rect r = { 0, 0, mp->width, mp->height * factor };
382
383 rect_set_min_size(&r, &vivid_min_rect);
384 rect_set_max_size(&r, &vivid_max_rect);
385 if (dev->has_scaler_out && !dev->has_crop_out) {
386 struct v4l2_rect max_r = { 0, 0, MAX_ZOOM * w, MAX_ZOOM * h };
387
388 rect_set_max_size(&r, &max_r);
389 } else if (!dev->has_scaler_out && dev->has_compose_out && !dev->has_crop_out) {
390 rect_set_max_size(&r, &dev->sink_rect);
391 } else if (!dev->has_scaler_out && !dev->has_compose_out) {
392 rect_set_min_size(&r, &dev->sink_rect);
393 }
394 mp->width = r.width;
395 mp->height = r.height / factor;
396 }
397
398 /* This driver supports custom bytesperline values */
399
400 /* Calculate the minimum supported bytesperline value */
401 bytesperline = (mp->width * fmt->bit_depth[0]) >> 3;
402 /* Calculate the maximum supported bytesperline value */
403 max_bpl = (MAX_ZOOM * MAX_WIDTH * fmt->bit_depth[0]) >> 3;
404 mp->num_planes = fmt->buffers;
405 for (p = 0; p < mp->num_planes; p++) {
406 if (pfmt[p].bytesperline > max_bpl)
407 pfmt[p].bytesperline = max_bpl;
408 if (pfmt[p].bytesperline < bytesperline)
409 pfmt[p].bytesperline = bytesperline;
410 pfmt[p].sizeimage = pfmt[p].bytesperline * mp->height;
411 memset(pfmt[p].reserved, 0, sizeof(pfmt[p].reserved));
412 }
413 for (p = fmt->buffers; p < fmt->planes; p++)
414 pfmt[0].sizeimage += (pfmt[0].bytesperline * fmt->bit_depth[p]) /
415 (fmt->bit_depth[0] * fmt->vdownsampling[p]);
416 mp->xfer_func = V4L2_XFER_FUNC_DEFAULT;
417 mp->ycbcr_enc = V4L2_YCBCR_ENC_DEFAULT;
418 mp->quantization = V4L2_QUANTIZATION_DEFAULT;
419 if (vivid_is_svid_out(dev)) {
420 mp->colorspace = V4L2_COLORSPACE_SMPTE170M;
421 } else if (dev->dvi_d_out || !(bt->flags & V4L2_DV_FL_IS_CE_VIDEO)) {
422 mp->colorspace = V4L2_COLORSPACE_SRGB;
423 if (dev->dvi_d_out)
424 mp->quantization = V4L2_QUANTIZATION_LIM_RANGE;
425 } else if (bt->width == 720 && bt->height <= 576) {
426 mp->colorspace = V4L2_COLORSPACE_SMPTE170M;
427 } else if (mp->colorspace != V4L2_COLORSPACE_SMPTE170M &&
428 mp->colorspace != V4L2_COLORSPACE_REC709 &&
429 mp->colorspace != V4L2_COLORSPACE_ADOBERGB &&
430 mp->colorspace != V4L2_COLORSPACE_BT2020 &&
431 mp->colorspace != V4L2_COLORSPACE_SRGB) {
432 mp->colorspace = V4L2_COLORSPACE_REC709;
433 }
434 memset(mp->reserved, 0, sizeof(mp->reserved));
435 return 0;
436 }
437
vivid_s_fmt_vid_out(struct file * file,void * priv,struct v4l2_format * f)438 int vivid_s_fmt_vid_out(struct file *file, void *priv,
439 struct v4l2_format *f)
440 {
441 struct v4l2_pix_format_mplane *mp = &f->fmt.pix_mp;
442 struct vivid_dev *dev = video_drvdata(file);
443 struct v4l2_rect *crop = &dev->crop_out;
444 struct v4l2_rect *compose = &dev->compose_out;
445 struct vb2_queue *q = &dev->vb_vid_out_q;
446 int ret = vivid_try_fmt_vid_out(file, priv, f);
447 unsigned factor = 1;
448 unsigned p;
449
450 if (ret < 0)
451 return ret;
452
453 if (vb2_is_busy(q) &&
454 (vivid_is_svid_out(dev) ||
455 mp->width != dev->fmt_out_rect.width ||
456 mp->height != dev->fmt_out_rect.height ||
457 mp->pixelformat != dev->fmt_out->fourcc ||
458 mp->field != dev->field_out)) {
459 dprintk(dev, 1, "%s device busy\n", __func__);
460 return -EBUSY;
461 }
462
463 /*
464 * Allow for changing the colorspace on the fly. Useful for testing
465 * purposes, and it is something that HDMI transmitters are able
466 * to do.
467 */
468 if (vb2_is_busy(q))
469 goto set_colorspace;
470
471 dev->fmt_out = vivid_get_format(dev, mp->pixelformat);
472 if (V4L2_FIELD_HAS_T_OR_B(mp->field))
473 factor = 2;
474
475 if (dev->has_scaler_out || dev->has_crop_out || dev->has_compose_out) {
476 struct v4l2_rect r = { 0, 0, mp->width, mp->height };
477
478 if (dev->has_scaler_out) {
479 if (dev->has_crop_out)
480 rect_map_inside(crop, &r);
481 else
482 *crop = r;
483 if (dev->has_compose_out && !dev->has_crop_out) {
484 struct v4l2_rect min_r = {
485 0, 0,
486 r.width / MAX_ZOOM,
487 factor * r.height / MAX_ZOOM
488 };
489 struct v4l2_rect max_r = {
490 0, 0,
491 r.width * MAX_ZOOM,
492 factor * r.height * MAX_ZOOM
493 };
494
495 rect_set_min_size(compose, &min_r);
496 rect_set_max_size(compose, &max_r);
497 rect_map_inside(compose, &dev->compose_bounds_out);
498 } else if (dev->has_compose_out) {
499 struct v4l2_rect min_r = {
500 0, 0,
501 crop->width / MAX_ZOOM,
502 factor * crop->height / MAX_ZOOM
503 };
504 struct v4l2_rect max_r = {
505 0, 0,
506 crop->width * MAX_ZOOM,
507 factor * crop->height * MAX_ZOOM
508 };
509
510 rect_set_min_size(compose, &min_r);
511 rect_set_max_size(compose, &max_r);
512 rect_map_inside(compose, &dev->compose_bounds_out);
513 }
514 } else if (dev->has_compose_out && !dev->has_crop_out) {
515 rect_set_size_to(crop, &r);
516 r.height *= factor;
517 rect_set_size_to(compose, &r);
518 rect_map_inside(compose, &dev->compose_bounds_out);
519 } else if (!dev->has_compose_out) {
520 rect_map_inside(crop, &r);
521 r.height /= factor;
522 rect_set_size_to(compose, &r);
523 } else {
524 r.height *= factor;
525 rect_set_max_size(compose, &r);
526 rect_map_inside(compose, &dev->compose_bounds_out);
527 crop->top *= factor;
528 crop->height *= factor;
529 rect_set_size_to(crop, compose);
530 rect_map_inside(crop, &r);
531 crop->top /= factor;
532 crop->height /= factor;
533 }
534 } else {
535 struct v4l2_rect r = { 0, 0, mp->width, mp->height };
536
537 rect_set_size_to(crop, &r);
538 r.height /= factor;
539 rect_set_size_to(compose, &r);
540 }
541
542 dev->fmt_out_rect.width = mp->width;
543 dev->fmt_out_rect.height = mp->height;
544 for (p = 0; p < mp->num_planes; p++)
545 dev->bytesperline_out[p] = mp->plane_fmt[p].bytesperline;
546 for (p = dev->fmt_out->buffers; p < dev->fmt_out->planes; p++)
547 dev->bytesperline_out[p] =
548 (dev->bytesperline_out[0] * dev->fmt_out->bit_depth[p]) /
549 dev->fmt_out->bit_depth[0];
550 dev->field_out = mp->field;
551 if (vivid_is_svid_out(dev))
552 dev->tv_field_out = mp->field;
553
554 set_colorspace:
555 dev->colorspace_out = mp->colorspace;
556 dev->xfer_func_out = mp->xfer_func;
557 dev->ycbcr_enc_out = mp->ycbcr_enc;
558 dev->quantization_out = mp->quantization;
559 if (dev->loop_video) {
560 vivid_send_source_change(dev, SVID);
561 vivid_send_source_change(dev, HDMI);
562 }
563 return 0;
564 }
565
vidioc_g_fmt_vid_out_mplane(struct file * file,void * priv,struct v4l2_format * f)566 int vidioc_g_fmt_vid_out_mplane(struct file *file, void *priv,
567 struct v4l2_format *f)
568 {
569 struct vivid_dev *dev = video_drvdata(file);
570
571 if (!dev->multiplanar)
572 return -ENOTTY;
573 return vivid_g_fmt_vid_out(file, priv, f);
574 }
575
vidioc_try_fmt_vid_out_mplane(struct file * file,void * priv,struct v4l2_format * f)576 int vidioc_try_fmt_vid_out_mplane(struct file *file, void *priv,
577 struct v4l2_format *f)
578 {
579 struct vivid_dev *dev = video_drvdata(file);
580
581 if (!dev->multiplanar)
582 return -ENOTTY;
583 return vivid_try_fmt_vid_out(file, priv, f);
584 }
585
vidioc_s_fmt_vid_out_mplane(struct file * file,void * priv,struct v4l2_format * f)586 int vidioc_s_fmt_vid_out_mplane(struct file *file, void *priv,
587 struct v4l2_format *f)
588 {
589 struct vivid_dev *dev = video_drvdata(file);
590
591 if (!dev->multiplanar)
592 return -ENOTTY;
593 return vivid_s_fmt_vid_out(file, priv, f);
594 }
595
vidioc_g_fmt_vid_out(struct file * file,void * priv,struct v4l2_format * f)596 int vidioc_g_fmt_vid_out(struct file *file, void *priv,
597 struct v4l2_format *f)
598 {
599 struct vivid_dev *dev = video_drvdata(file);
600
601 if (dev->multiplanar)
602 return -ENOTTY;
603 return fmt_sp2mp_func(file, priv, f, vivid_g_fmt_vid_out);
604 }
605
vidioc_try_fmt_vid_out(struct file * file,void * priv,struct v4l2_format * f)606 int vidioc_try_fmt_vid_out(struct file *file, void *priv,
607 struct v4l2_format *f)
608 {
609 struct vivid_dev *dev = video_drvdata(file);
610
611 if (dev->multiplanar)
612 return -ENOTTY;
613 return fmt_sp2mp_func(file, priv, f, vivid_try_fmt_vid_out);
614 }
615
vidioc_s_fmt_vid_out(struct file * file,void * priv,struct v4l2_format * f)616 int vidioc_s_fmt_vid_out(struct file *file, void *priv,
617 struct v4l2_format *f)
618 {
619 struct vivid_dev *dev = video_drvdata(file);
620
621 if (dev->multiplanar)
622 return -ENOTTY;
623 return fmt_sp2mp_func(file, priv, f, vivid_s_fmt_vid_out);
624 }
625
vivid_vid_out_g_selection(struct file * file,void * priv,struct v4l2_selection * sel)626 int vivid_vid_out_g_selection(struct file *file, void *priv,
627 struct v4l2_selection *sel)
628 {
629 struct vivid_dev *dev = video_drvdata(file);
630
631 if (!dev->has_crop_out && !dev->has_compose_out)
632 return -ENOTTY;
633 if (sel->type != V4L2_BUF_TYPE_VIDEO_OUTPUT)
634 return -EINVAL;
635
636 sel->r.left = sel->r.top = 0;
637 switch (sel->target) {
638 case V4L2_SEL_TGT_CROP:
639 if (!dev->has_crop_out)
640 return -EINVAL;
641 sel->r = dev->crop_out;
642 break;
643 case V4L2_SEL_TGT_CROP_DEFAULT:
644 if (!dev->has_crop_out)
645 return -EINVAL;
646 sel->r = dev->fmt_out_rect;
647 break;
648 case V4L2_SEL_TGT_CROP_BOUNDS:
649 if (!dev->has_crop_out)
650 return -EINVAL;
651 sel->r = vivid_max_rect;
652 break;
653 case V4L2_SEL_TGT_COMPOSE:
654 if (!dev->has_compose_out)
655 return -EINVAL;
656 sel->r = dev->compose_out;
657 break;
658 case V4L2_SEL_TGT_COMPOSE_DEFAULT:
659 case V4L2_SEL_TGT_COMPOSE_BOUNDS:
660 if (!dev->has_compose_out)
661 return -EINVAL;
662 sel->r = dev->sink_rect;
663 break;
664 default:
665 return -EINVAL;
666 }
667 return 0;
668 }
669
vivid_vid_out_s_selection(struct file * file,void * fh,struct v4l2_selection * s)670 int vivid_vid_out_s_selection(struct file *file, void *fh, struct v4l2_selection *s)
671 {
672 struct vivid_dev *dev = video_drvdata(file);
673 struct v4l2_rect *crop = &dev->crop_out;
674 struct v4l2_rect *compose = &dev->compose_out;
675 unsigned factor = V4L2_FIELD_HAS_T_OR_B(dev->field_out) ? 2 : 1;
676 int ret;
677
678 if (!dev->has_crop_out && !dev->has_compose_out)
679 return -ENOTTY;
680 if (s->type != V4L2_BUF_TYPE_VIDEO_OUTPUT)
681 return -EINVAL;
682
683 switch (s->target) {
684 case V4L2_SEL_TGT_CROP:
685 if (!dev->has_crop_out)
686 return -EINVAL;
687 ret = vivid_vid_adjust_sel(s->flags, &s->r);
688 if (ret)
689 return ret;
690 rect_set_min_size(&s->r, &vivid_min_rect);
691 rect_set_max_size(&s->r, &dev->fmt_out_rect);
692 if (dev->has_scaler_out) {
693 struct v4l2_rect max_rect = {
694 0, 0,
695 dev->sink_rect.width * MAX_ZOOM,
696 (dev->sink_rect.height / factor) * MAX_ZOOM
697 };
698
699 rect_set_max_size(&s->r, &max_rect);
700 if (dev->has_compose_out) {
701 struct v4l2_rect min_rect = {
702 0, 0,
703 s->r.width / MAX_ZOOM,
704 (s->r.height * factor) / MAX_ZOOM
705 };
706 struct v4l2_rect max_rect = {
707 0, 0,
708 s->r.width * MAX_ZOOM,
709 (s->r.height * factor) * MAX_ZOOM
710 };
711
712 rect_set_min_size(compose, &min_rect);
713 rect_set_max_size(compose, &max_rect);
714 rect_map_inside(compose, &dev->compose_bounds_out);
715 }
716 } else if (dev->has_compose_out) {
717 s->r.top *= factor;
718 s->r.height *= factor;
719 rect_set_max_size(&s->r, &dev->sink_rect);
720 rect_set_size_to(compose, &s->r);
721 rect_map_inside(compose, &dev->compose_bounds_out);
722 s->r.top /= factor;
723 s->r.height /= factor;
724 } else {
725 rect_set_size_to(&s->r, &dev->sink_rect);
726 s->r.height /= factor;
727 }
728 rect_map_inside(&s->r, &dev->fmt_out_rect);
729 *crop = s->r;
730 break;
731 case V4L2_SEL_TGT_COMPOSE:
732 if (!dev->has_compose_out)
733 return -EINVAL;
734 ret = vivid_vid_adjust_sel(s->flags, &s->r);
735 if (ret)
736 return ret;
737 rect_set_min_size(&s->r, &vivid_min_rect);
738 rect_set_max_size(&s->r, &dev->sink_rect);
739 rect_map_inside(&s->r, &dev->compose_bounds_out);
740 s->r.top /= factor;
741 s->r.height /= factor;
742 if (dev->has_scaler_out) {
743 struct v4l2_rect fmt = dev->fmt_out_rect;
744 struct v4l2_rect max_rect = {
745 0, 0,
746 s->r.width * MAX_ZOOM,
747 s->r.height * MAX_ZOOM
748 };
749 struct v4l2_rect min_rect = {
750 0, 0,
751 s->r.width / MAX_ZOOM,
752 s->r.height / MAX_ZOOM
753 };
754
755 rect_set_min_size(&fmt, &min_rect);
756 if (!dev->has_crop_out)
757 rect_set_max_size(&fmt, &max_rect);
758 if (!rect_same_size(&dev->fmt_out_rect, &fmt) &&
759 vb2_is_busy(&dev->vb_vid_out_q))
760 return -EBUSY;
761 if (dev->has_crop_out) {
762 rect_set_min_size(crop, &min_rect);
763 rect_set_max_size(crop, &max_rect);
764 }
765 dev->fmt_out_rect = fmt;
766 } else if (dev->has_crop_out) {
767 struct v4l2_rect fmt = dev->fmt_out_rect;
768
769 rect_set_min_size(&fmt, &s->r);
770 if (!rect_same_size(&dev->fmt_out_rect, &fmt) &&
771 vb2_is_busy(&dev->vb_vid_out_q))
772 return -EBUSY;
773 dev->fmt_out_rect = fmt;
774 rect_set_size_to(crop, &s->r);
775 rect_map_inside(crop, &dev->fmt_out_rect);
776 } else {
777 if (!rect_same_size(&s->r, &dev->fmt_out_rect) &&
778 vb2_is_busy(&dev->vb_vid_out_q))
779 return -EBUSY;
780 rect_set_size_to(&dev->fmt_out_rect, &s->r);
781 rect_set_size_to(crop, &s->r);
782 crop->height /= factor;
783 rect_map_inside(crop, &dev->fmt_out_rect);
784 }
785 s->r.top *= factor;
786 s->r.height *= factor;
787 if (dev->bitmap_out && (compose->width != s->r.width ||
788 compose->height != s->r.height)) {
789 kfree(dev->bitmap_out);
790 dev->bitmap_out = NULL;
791 }
792 *compose = s->r;
793 break;
794 default:
795 return -EINVAL;
796 }
797
798 return 0;
799 }
800
vivid_vid_out_cropcap(struct file * file,void * priv,struct v4l2_cropcap * cap)801 int vivid_vid_out_cropcap(struct file *file, void *priv,
802 struct v4l2_cropcap *cap)
803 {
804 struct vivid_dev *dev = video_drvdata(file);
805
806 if (cap->type != V4L2_BUF_TYPE_VIDEO_OUTPUT)
807 return -EINVAL;
808
809 switch (vivid_get_pixel_aspect(dev)) {
810 case TPG_PIXEL_ASPECT_NTSC:
811 cap->pixelaspect.numerator = 11;
812 cap->pixelaspect.denominator = 10;
813 break;
814 case TPG_PIXEL_ASPECT_PAL:
815 cap->pixelaspect.numerator = 54;
816 cap->pixelaspect.denominator = 59;
817 break;
818 case TPG_PIXEL_ASPECT_SQUARE:
819 cap->pixelaspect.numerator = 1;
820 cap->pixelaspect.denominator = 1;
821 break;
822 }
823 return 0;
824 }
825
vidioc_g_fmt_vid_out_overlay(struct file * file,void * priv,struct v4l2_format * f)826 int vidioc_g_fmt_vid_out_overlay(struct file *file, void *priv,
827 struct v4l2_format *f)
828 {
829 struct vivid_dev *dev = video_drvdata(file);
830 const struct v4l2_rect *compose = &dev->compose_out;
831 struct v4l2_window *win = &f->fmt.win;
832 unsigned clipcount = win->clipcount;
833
834 if (!dev->has_fb)
835 return -EINVAL;
836 win->w.top = dev->overlay_out_top;
837 win->w.left = dev->overlay_out_left;
838 win->w.width = compose->width;
839 win->w.height = compose->height;
840 win->clipcount = dev->clipcount_out;
841 win->field = V4L2_FIELD_ANY;
842 win->chromakey = dev->chromakey_out;
843 win->global_alpha = dev->global_alpha_out;
844 if (clipcount > dev->clipcount_out)
845 clipcount = dev->clipcount_out;
846 if (dev->bitmap_out == NULL)
847 win->bitmap = NULL;
848 else if (win->bitmap) {
849 if (copy_to_user(win->bitmap, dev->bitmap_out,
850 ((dev->compose_out.width + 7) / 8) * dev->compose_out.height))
851 return -EFAULT;
852 }
853 if (clipcount && win->clips) {
854 if (copy_to_user(win->clips, dev->clips_out,
855 clipcount * sizeof(dev->clips_out[0])))
856 return -EFAULT;
857 }
858 return 0;
859 }
860
vidioc_try_fmt_vid_out_overlay(struct file * file,void * priv,struct v4l2_format * f)861 int vidioc_try_fmt_vid_out_overlay(struct file *file, void *priv,
862 struct v4l2_format *f)
863 {
864 struct vivid_dev *dev = video_drvdata(file);
865 const struct v4l2_rect *compose = &dev->compose_out;
866 struct v4l2_window *win = &f->fmt.win;
867 int i, j;
868
869 if (!dev->has_fb)
870 return -EINVAL;
871 win->w.left = clamp_t(int, win->w.left,
872 -dev->display_width, dev->display_width);
873 win->w.top = clamp_t(int, win->w.top,
874 -dev->display_height, dev->display_height);
875 win->w.width = compose->width;
876 win->w.height = compose->height;
877 /*
878 * It makes no sense for an OSD to overlay only top or bottom fields,
879 * so always set this to ANY.
880 */
881 win->field = V4L2_FIELD_ANY;
882 if (win->clipcount && !win->clips)
883 win->clipcount = 0;
884 if (win->clipcount > MAX_CLIPS)
885 win->clipcount = MAX_CLIPS;
886 if (win->clipcount) {
887 if (copy_from_user(dev->try_clips_out, win->clips,
888 win->clipcount * sizeof(dev->clips_out[0])))
889 return -EFAULT;
890 for (i = 0; i < win->clipcount; i++) {
891 struct v4l2_rect *r = &dev->try_clips_out[i].c;
892
893 r->top = clamp_t(s32, r->top, 0, dev->display_height - 1);
894 r->height = clamp_t(s32, r->height, 1, dev->display_height - r->top);
895 r->left = clamp_t(u32, r->left, 0, dev->display_width - 1);
896 r->width = clamp_t(u32, r->width, 1, dev->display_width - r->left);
897 }
898 /*
899 * Yeah, so sue me, it's an O(n^2) algorithm. But n is a small
900 * number and it's typically a one-time deal.
901 */
902 for (i = 0; i < win->clipcount - 1; i++) {
903 struct v4l2_rect *r1 = &dev->try_clips_out[i].c;
904
905 for (j = i + 1; j < win->clipcount; j++) {
906 struct v4l2_rect *r2 = &dev->try_clips_out[j].c;
907
908 if (rect_overlap(r1, r2))
909 return -EINVAL;
910 }
911 }
912 if (copy_to_user(win->clips, dev->try_clips_out,
913 win->clipcount * sizeof(dev->clips_out[0])))
914 return -EFAULT;
915 }
916 return 0;
917 }
918
vidioc_s_fmt_vid_out_overlay(struct file * file,void * priv,struct v4l2_format * f)919 int vidioc_s_fmt_vid_out_overlay(struct file *file, void *priv,
920 struct v4l2_format *f)
921 {
922 struct vivid_dev *dev = video_drvdata(file);
923 const struct v4l2_rect *compose = &dev->compose_out;
924 struct v4l2_window *win = &f->fmt.win;
925 int ret = vidioc_try_fmt_vid_out_overlay(file, priv, f);
926 unsigned bitmap_size = ((compose->width + 7) / 8) * compose->height;
927 unsigned clips_size = win->clipcount * sizeof(dev->clips_out[0]);
928 void *new_bitmap = NULL;
929
930 if (ret)
931 return ret;
932
933 if (win->bitmap) {
934 new_bitmap = memdup_user(win->bitmap, bitmap_size);
935
936 if (IS_ERR(new_bitmap))
937 return PTR_ERR(new_bitmap);
938 }
939
940 dev->overlay_out_top = win->w.top;
941 dev->overlay_out_left = win->w.left;
942 kfree(dev->bitmap_out);
943 dev->bitmap_out = new_bitmap;
944 dev->clipcount_out = win->clipcount;
945 if (dev->clipcount_out)
946 memcpy(dev->clips_out, dev->try_clips_out, clips_size);
947 dev->chromakey_out = win->chromakey;
948 dev->global_alpha_out = win->global_alpha;
949 return ret;
950 }
951
vivid_vid_out_overlay(struct file * file,void * fh,unsigned i)952 int vivid_vid_out_overlay(struct file *file, void *fh, unsigned i)
953 {
954 struct vivid_dev *dev = video_drvdata(file);
955
956 if (i && !dev->fmt_out->can_do_overlay) {
957 dprintk(dev, 1, "unsupported output format for output overlay\n");
958 return -EINVAL;
959 }
960
961 dev->overlay_out_enabled = i;
962 return 0;
963 }
964
vivid_vid_out_g_fbuf(struct file * file,void * fh,struct v4l2_framebuffer * a)965 int vivid_vid_out_g_fbuf(struct file *file, void *fh,
966 struct v4l2_framebuffer *a)
967 {
968 struct vivid_dev *dev = video_drvdata(file);
969
970 a->capability = V4L2_FBUF_CAP_EXTERNOVERLAY |
971 V4L2_FBUF_CAP_BITMAP_CLIPPING |
972 V4L2_FBUF_CAP_LIST_CLIPPING |
973 V4L2_FBUF_CAP_CHROMAKEY |
974 V4L2_FBUF_CAP_SRC_CHROMAKEY |
975 V4L2_FBUF_CAP_GLOBAL_ALPHA |
976 V4L2_FBUF_CAP_LOCAL_ALPHA |
977 V4L2_FBUF_CAP_LOCAL_INV_ALPHA;
978 a->flags = V4L2_FBUF_FLAG_OVERLAY | dev->fbuf_out_flags;
979 a->base = (void *)dev->video_pbase;
980 a->fmt.width = dev->display_width;
981 a->fmt.height = dev->display_height;
982 if (dev->fb_defined.green.length == 5)
983 a->fmt.pixelformat = V4L2_PIX_FMT_ARGB555;
984 else
985 a->fmt.pixelformat = V4L2_PIX_FMT_RGB565;
986 a->fmt.bytesperline = dev->display_byte_stride;
987 a->fmt.sizeimage = a->fmt.height * a->fmt.bytesperline;
988 a->fmt.field = V4L2_FIELD_NONE;
989 a->fmt.colorspace = V4L2_COLORSPACE_SRGB;
990 a->fmt.priv = 0;
991 return 0;
992 }
993
vivid_vid_out_s_fbuf(struct file * file,void * fh,const struct v4l2_framebuffer * a)994 int vivid_vid_out_s_fbuf(struct file *file, void *fh,
995 const struct v4l2_framebuffer *a)
996 {
997 struct vivid_dev *dev = video_drvdata(file);
998 const unsigned chroma_flags = V4L2_FBUF_FLAG_CHROMAKEY |
999 V4L2_FBUF_FLAG_SRC_CHROMAKEY;
1000 const unsigned alpha_flags = V4L2_FBUF_FLAG_GLOBAL_ALPHA |
1001 V4L2_FBUF_FLAG_LOCAL_ALPHA |
1002 V4L2_FBUF_FLAG_LOCAL_INV_ALPHA;
1003
1004
1005 if ((a->flags & chroma_flags) == chroma_flags)
1006 return -EINVAL;
1007 switch (a->flags & alpha_flags) {
1008 case 0:
1009 case V4L2_FBUF_FLAG_GLOBAL_ALPHA:
1010 case V4L2_FBUF_FLAG_LOCAL_ALPHA:
1011 case V4L2_FBUF_FLAG_LOCAL_INV_ALPHA:
1012 break;
1013 default:
1014 return -EINVAL;
1015 }
1016 dev->fbuf_out_flags &= ~(chroma_flags | alpha_flags);
1017 dev->fbuf_out_flags = a->flags & (chroma_flags | alpha_flags);
1018 return 0;
1019 }
1020
1021 static const struct v4l2_audioout vivid_audio_outputs[] = {
1022 { 0, "Line-Out 1" },
1023 { 1, "Line-Out 2" },
1024 };
1025
vidioc_enum_output(struct file * file,void * priv,struct v4l2_output * out)1026 int vidioc_enum_output(struct file *file, void *priv,
1027 struct v4l2_output *out)
1028 {
1029 struct vivid_dev *dev = video_drvdata(file);
1030
1031 if (out->index >= dev->num_outputs)
1032 return -EINVAL;
1033
1034 out->type = V4L2_OUTPUT_TYPE_ANALOG;
1035 switch (dev->output_type[out->index]) {
1036 case SVID:
1037 snprintf(out->name, sizeof(out->name), "S-Video %u",
1038 dev->output_name_counter[out->index]);
1039 out->std = V4L2_STD_ALL;
1040 if (dev->has_audio_outputs)
1041 out->audioset = (1 << ARRAY_SIZE(vivid_audio_outputs)) - 1;
1042 out->capabilities = V4L2_OUT_CAP_STD;
1043 break;
1044 case HDMI:
1045 snprintf(out->name, sizeof(out->name), "HDMI %u",
1046 dev->output_name_counter[out->index]);
1047 out->capabilities = V4L2_OUT_CAP_DV_TIMINGS;
1048 break;
1049 }
1050 return 0;
1051 }
1052
vidioc_g_output(struct file * file,void * priv,unsigned * o)1053 int vidioc_g_output(struct file *file, void *priv, unsigned *o)
1054 {
1055 struct vivid_dev *dev = video_drvdata(file);
1056
1057 *o = dev->output;
1058 return 0;
1059 }
1060
vidioc_s_output(struct file * file,void * priv,unsigned o)1061 int vidioc_s_output(struct file *file, void *priv, unsigned o)
1062 {
1063 struct vivid_dev *dev = video_drvdata(file);
1064
1065 if (o >= dev->num_outputs)
1066 return -EINVAL;
1067
1068 if (o == dev->output)
1069 return 0;
1070
1071 if (vb2_is_busy(&dev->vb_vid_out_q) || vb2_is_busy(&dev->vb_vbi_out_q))
1072 return -EBUSY;
1073
1074 dev->output = o;
1075 dev->tv_audio_output = 0;
1076 if (dev->output_type[o] == SVID)
1077 dev->vid_out_dev.tvnorms = V4L2_STD_ALL;
1078 else
1079 dev->vid_out_dev.tvnorms = 0;
1080
1081 dev->vbi_out_dev.tvnorms = dev->vid_out_dev.tvnorms;
1082 vivid_update_format_out(dev);
1083 return 0;
1084 }
1085
vidioc_enumaudout(struct file * file,void * fh,struct v4l2_audioout * vout)1086 int vidioc_enumaudout(struct file *file, void *fh, struct v4l2_audioout *vout)
1087 {
1088 if (vout->index >= ARRAY_SIZE(vivid_audio_outputs))
1089 return -EINVAL;
1090 *vout = vivid_audio_outputs[vout->index];
1091 return 0;
1092 }
1093
vidioc_g_audout(struct file * file,void * fh,struct v4l2_audioout * vout)1094 int vidioc_g_audout(struct file *file, void *fh, struct v4l2_audioout *vout)
1095 {
1096 struct vivid_dev *dev = video_drvdata(file);
1097
1098 if (!vivid_is_svid_out(dev))
1099 return -EINVAL;
1100 *vout = vivid_audio_outputs[dev->tv_audio_output];
1101 return 0;
1102 }
1103
vidioc_s_audout(struct file * file,void * fh,const struct v4l2_audioout * vout)1104 int vidioc_s_audout(struct file *file, void *fh, const struct v4l2_audioout *vout)
1105 {
1106 struct vivid_dev *dev = video_drvdata(file);
1107
1108 if (!vivid_is_svid_out(dev))
1109 return -EINVAL;
1110 if (vout->index >= ARRAY_SIZE(vivid_audio_outputs))
1111 return -EINVAL;
1112 dev->tv_audio_output = vout->index;
1113 return 0;
1114 }
1115
vivid_vid_out_s_std(struct file * file,void * priv,v4l2_std_id id)1116 int vivid_vid_out_s_std(struct file *file, void *priv, v4l2_std_id id)
1117 {
1118 struct vivid_dev *dev = video_drvdata(file);
1119
1120 if (!vivid_is_svid_out(dev))
1121 return -ENODATA;
1122 if (dev->std_out == id)
1123 return 0;
1124 if (vb2_is_busy(&dev->vb_vid_out_q) || vb2_is_busy(&dev->vb_vbi_out_q))
1125 return -EBUSY;
1126 dev->std_out = id;
1127 vivid_update_format_out(dev);
1128 return 0;
1129 }
1130
valid_cvt_gtf_timings(struct v4l2_dv_timings * timings)1131 static bool valid_cvt_gtf_timings(struct v4l2_dv_timings *timings)
1132 {
1133 struct v4l2_bt_timings *bt = &timings->bt;
1134
1135 if ((bt->standards & (V4L2_DV_BT_STD_CVT | V4L2_DV_BT_STD_GTF)) &&
1136 v4l2_valid_dv_timings(timings, &vivid_dv_timings_cap, NULL, NULL))
1137 return true;
1138
1139 return false;
1140 }
1141
vivid_vid_out_s_dv_timings(struct file * file,void * _fh,struct v4l2_dv_timings * timings)1142 int vivid_vid_out_s_dv_timings(struct file *file, void *_fh,
1143 struct v4l2_dv_timings *timings)
1144 {
1145 struct vivid_dev *dev = video_drvdata(file);
1146 if (!vivid_is_hdmi_out(dev))
1147 return -ENODATA;
1148 if (!v4l2_find_dv_timings_cap(timings, &vivid_dv_timings_cap,
1149 0, NULL, NULL) &&
1150 !valid_cvt_gtf_timings(timings))
1151 return -EINVAL;
1152 if (v4l2_match_dv_timings(timings, &dev->dv_timings_out, 0))
1153 return 0;
1154 if (vb2_is_busy(&dev->vb_vid_out_q))
1155 return -EBUSY;
1156 dev->dv_timings_out = *timings;
1157 vivid_update_format_out(dev);
1158 return 0;
1159 }
1160
vivid_vid_out_g_parm(struct file * file,void * priv,struct v4l2_streamparm * parm)1161 int vivid_vid_out_g_parm(struct file *file, void *priv,
1162 struct v4l2_streamparm *parm)
1163 {
1164 struct vivid_dev *dev = video_drvdata(file);
1165
1166 if (parm->type != (dev->multiplanar ?
1167 V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE :
1168 V4L2_BUF_TYPE_VIDEO_OUTPUT))
1169 return -EINVAL;
1170
1171 parm->parm.output.capability = V4L2_CAP_TIMEPERFRAME;
1172 parm->parm.output.timeperframe = dev->timeperframe_vid_out;
1173 parm->parm.output.writebuffers = 1;
1174
1175 return 0;
1176 }
1177
vidioc_subscribe_event(struct v4l2_fh * fh,const struct v4l2_event_subscription * sub)1178 int vidioc_subscribe_event(struct v4l2_fh *fh,
1179 const struct v4l2_event_subscription *sub)
1180 {
1181 switch (sub->type) {
1182 case V4L2_EVENT_CTRL:
1183 return v4l2_ctrl_subscribe_event(fh, sub);
1184 case V4L2_EVENT_SOURCE_CHANGE:
1185 if (fh->vdev->vfl_dir == VFL_DIR_RX)
1186 return v4l2_src_change_event_subscribe(fh, sub);
1187 break;
1188 default:
1189 break;
1190 }
1191 return -EINVAL;
1192 }
1193