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perf tools: Don't clone maps from parent when synthesizing forks
[linux/fpc-iii.git] / drivers / media / platform / vivid / vivid-vid-out.c
blob51fec66d8d455673139f12a5b5c826c988bf838b
1 // SPDX-License-Identifier: GPL-2.0-only
2 /*
3 * vivid-vid-out.c - video output 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/videodev2.h>
12 #include <linux/v4l2-dv-timings.h>
13 #include <media/v4l2-common.h>
14 #include <media/v4l2-event.h>
15 #include <media/v4l2-dv-timings.h>
16 #include <media/v4l2-rect.h>
17
18 #include "vivid-core.h"
19 #include "vivid-vid-common.h"
20 #include "vivid-kthread-out.h"
21 #include "vivid-vid-out.h"
22
23 static int vid_out_queue_setup(struct vb2_queue *vq,
24 unsigned *nbuffers, unsigned *nplanes,
25 unsigned sizes[], struct device *alloc_devs[])
26 {
27 struct vivid_dev *dev = vb2_get_drv_priv(vq);
28 const struct vivid_fmt *vfmt = dev->fmt_out;
29 unsigned planes = vfmt->buffers;
30 unsigned h = dev->fmt_out_rect.height;
31 unsigned size = dev->bytesperline_out[0] * h;
32 unsigned p;
33
34 for (p = vfmt->buffers; p < vfmt->planes; p++)
35 size += dev->bytesperline_out[p] * h / vfmt->vdownsampling[p];
36
37 if (dev->field_out == V4L2_FIELD_ALTERNATE) {
38 /*
39 * You cannot use write() with FIELD_ALTERNATE since the field
40 * information (TOP/BOTTOM) cannot be passed to the kernel.
41 */
42 if (vb2_fileio_is_active(vq))
43 return -EINVAL;
44 }
45
46 if (dev->queue_setup_error) {
47 /*
48 * Error injection: test what happens if queue_setup() returns
49 * an error.
50 */
51 dev->queue_setup_error = false;
52 return -EINVAL;
53 }
54
55 if (*nplanes) {
56 /*
57 * Check if the number of requested planes match
58 * the number of planes in the current format. You can't mix that.
59 */
60 if (*nplanes != planes)
61 return -EINVAL;
62 if (sizes[0] < size)
63 return -EINVAL;
64 for (p = 1; p < planes; p++) {
65 if (sizes[p] < dev->bytesperline_out[p] * h)
66 return -EINVAL;
67 }
68 } else {
69 for (p = 0; p < planes; p++)
70 sizes[p] = p ? dev->bytesperline_out[p] * h : size;
71 }
72
73 if (vq->num_buffers + *nbuffers < 2)
74 *nbuffers = 2 - vq->num_buffers;
75
76 *nplanes = planes;
77
78 dprintk(dev, 1, "%s: count=%d\n", __func__, *nbuffers);
79 for (p = 0; p < planes; p++)
80 dprintk(dev, 1, "%s: size[%u]=%u\n", __func__, p, sizes[p]);
81 return 0;
82 }
83
84 static int vid_out_buf_prepare(struct vb2_buffer *vb)
85 {
86 struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
87 struct vivid_dev *dev = vb2_get_drv_priv(vb->vb2_queue);
88 unsigned long size;
89 unsigned planes;
90 unsigned p;
91
92 dprintk(dev, 1, "%s\n", __func__);
93
94 if (WARN_ON(NULL == dev->fmt_out))
95 return -EINVAL;
96
97 planes = dev->fmt_out->planes;
98
99 if (dev->buf_prepare_error) {
100 /*
101 * Error injection: test what happens if buf_prepare() returns
102 * an error.
103 */
104 dev->buf_prepare_error = false;
105 return -EINVAL;
106 }
107
108 if (dev->field_out != V4L2_FIELD_ALTERNATE)
109 vbuf->field = dev->field_out;
110 else if (vbuf->field != V4L2_FIELD_TOP &&
111 vbuf->field != V4L2_FIELD_BOTTOM)
112 return -EINVAL;
113
114 for (p = 0; p < planes; p++) {
115 size = dev->bytesperline_out[p] * dev->fmt_out_rect.height +
116 vb->planes[p].data_offset;
117
118 if (vb2_get_plane_payload(vb, p) < size) {
119 dprintk(dev, 1, "%s the payload is too small for plane %u (%lu < %lu)\n",
120 __func__, p, vb2_get_plane_payload(vb, p), size);
121 return -EINVAL;
122 }
123 }
124
125 return 0;
126 }
127
128 static void vid_out_buf_queue(struct vb2_buffer *vb)
129 {
130 struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
131 struct vivid_dev *dev = vb2_get_drv_priv(vb->vb2_queue);
132 struct vivid_buffer *buf = container_of(vbuf, struct vivid_buffer, vb);
133
134 dprintk(dev, 1, "%s\n", __func__);
135
136 spin_lock(&dev->slock);
137 list_add_tail(&buf->list, &dev->vid_out_active);
138 spin_unlock(&dev->slock);
139 }
140
141 static int vid_out_start_streaming(struct vb2_queue *vq, unsigned count)
142 {
143 struct vivid_dev *dev = vb2_get_drv_priv(vq);
144 int err;
145
146 if (vb2_is_streaming(&dev->vb_vid_cap_q))
147 dev->can_loop_video = vivid_vid_can_loop(dev);
148
149 if (dev->kthread_vid_out)
150 return 0;
151
152 dev->vid_out_seq_count = 0;
153 dprintk(dev, 1, "%s\n", __func__);
154 if (dev->start_streaming_error) {
155 dev->start_streaming_error = false;
156 err = -EINVAL;
157 } else {
158 err = vivid_start_generating_vid_out(dev, &dev->vid_out_streaming);
159 }
160 if (err) {
161 struct vivid_buffer *buf, *tmp;
162
163 list_for_each_entry_safe(buf, tmp, &dev->vid_out_active, list) {
164 list_del(&buf->list);
165 vb2_buffer_done(&buf->vb.vb2_buf,
166 VB2_BUF_STATE_QUEUED);
167 }
168 }
169 return err;
170 }
171
172 /* abort streaming and wait for last buffer */
173 static void vid_out_stop_streaming(struct vb2_queue *vq)
174 {
175 struct vivid_dev *dev = vb2_get_drv_priv(vq);
176
177 dprintk(dev, 1, "%s\n", __func__);
178 vivid_stop_generating_vid_out(dev, &dev->vid_out_streaming);
179 dev->can_loop_video = false;
180 }
181
182 const struct vb2_ops vivid_vid_out_qops = {
183 .queue_setup = vid_out_queue_setup,
184 .buf_prepare = vid_out_buf_prepare,
185 .buf_queue = vid_out_buf_queue,
186 .start_streaming = vid_out_start_streaming,
187 .stop_streaming = vid_out_stop_streaming,
188 .wait_prepare = vb2_ops_wait_prepare,
189 .wait_finish = vb2_ops_wait_finish,
190 };
191
192 /*
193 * Called whenever the format has to be reset which can occur when
194 * changing outputs, standard, timings, etc.
195 */
196 void vivid_update_format_out(struct vivid_dev *dev)
197 {
198 struct v4l2_bt_timings *bt = &dev->dv_timings_out.bt;
199 unsigned size, p;
200 u64 pixelclock;
201
202 switch (dev->output_type[dev->output]) {
203 case SVID:
204 default:
205 dev->field_out = dev->tv_field_out;
206 dev->sink_rect.width = 720;
207 if (dev->std_out & V4L2_STD_525_60) {
208 dev->sink_rect.height = 480;
209 dev->timeperframe_vid_out = (struct v4l2_fract) { 1001, 30000 };
210 dev->service_set_out = V4L2_SLICED_CAPTION_525;
211 } else {
212 dev->sink_rect.height = 576;
213 dev->timeperframe_vid_out = (struct v4l2_fract) { 1000, 25000 };
214 dev->service_set_out = V4L2_SLICED_WSS_625 | V4L2_SLICED_TELETEXT_B;
215 }
216 dev->colorspace_out = V4L2_COLORSPACE_SMPTE170M;
217 break;
218 case HDMI:
219 dev->sink_rect.width = bt->width;
220 dev->sink_rect.height = bt->height;
221 size = V4L2_DV_BT_FRAME_WIDTH(bt) * V4L2_DV_BT_FRAME_HEIGHT(bt);
222
223 if (can_reduce_fps(bt) && (bt->flags & V4L2_DV_FL_REDUCED_FPS))
224 pixelclock = div_u64(bt->pixelclock * 1000, 1001);
225 else
226 pixelclock = bt->pixelclock;
227
228 dev->timeperframe_vid_out = (struct v4l2_fract) {
229 size / 100, (u32)pixelclock / 100
230 };
231 if (bt->interlaced)
232 dev->field_out = V4L2_FIELD_ALTERNATE;
233 else
234 dev->field_out = V4L2_FIELD_NONE;
235 if (!dev->dvi_d_out && (bt->flags & V4L2_DV_FL_IS_CE_VIDEO)) {
236 if (bt->width == 720 && bt->height <= 576)
237 dev->colorspace_out = V4L2_COLORSPACE_SMPTE170M;
238 else
239 dev->colorspace_out = V4L2_COLORSPACE_REC709;
240 } else {
241 dev->colorspace_out = V4L2_COLORSPACE_SRGB;
242 }
243 break;
244 }
245 dev->xfer_func_out = V4L2_XFER_FUNC_DEFAULT;
246 dev->ycbcr_enc_out = V4L2_YCBCR_ENC_DEFAULT;
247 dev->hsv_enc_out = V4L2_HSV_ENC_180;
248 dev->quantization_out = V4L2_QUANTIZATION_DEFAULT;
249 dev->compose_out = dev->sink_rect;
250 dev->compose_bounds_out = dev->sink_rect;
251 dev->crop_out = dev->compose_out;
252 if (V4L2_FIELD_HAS_T_OR_B(dev->field_out))
253 dev->crop_out.height /= 2;
254 dev->fmt_out_rect = dev->crop_out;
255 for (p = 0; p < dev->fmt_out->planes; p++)
256 dev->bytesperline_out[p] =
257 (dev->sink_rect.width * dev->fmt_out->bit_depth[p]) / 8;
258 }
259
260 /* Map the field to something that is valid for the current output */
261 static enum v4l2_field vivid_field_out(struct vivid_dev *dev, enum v4l2_field field)
262 {
263 if (vivid_is_svid_out(dev)) {
264 switch (field) {
265 case V4L2_FIELD_INTERLACED_TB:
266 case V4L2_FIELD_INTERLACED_BT:
267 case V4L2_FIELD_SEQ_TB:
268 case V4L2_FIELD_SEQ_BT:
269 case V4L2_FIELD_ALTERNATE:
270 return field;
271 case V4L2_FIELD_INTERLACED:
272 default:
273 return V4L2_FIELD_INTERLACED;
274 }
275 }
276 if (vivid_is_hdmi_out(dev))
277 return dev->dv_timings_out.bt.interlaced ? V4L2_FIELD_ALTERNATE :
278 V4L2_FIELD_NONE;
279 return V4L2_FIELD_NONE;
280 }
281
282 static enum tpg_pixel_aspect vivid_get_pixel_aspect(const struct vivid_dev *dev)
283 {
284 if (vivid_is_svid_out(dev))
285 return (dev->std_out & V4L2_STD_525_60) ?
286 TPG_PIXEL_ASPECT_NTSC : TPG_PIXEL_ASPECT_PAL;
287
288 if (vivid_is_hdmi_out(dev) &&
289 dev->sink_rect.width == 720 && dev->sink_rect.height <= 576)
290 return dev->sink_rect.height == 480 ?
291 TPG_PIXEL_ASPECT_NTSC : TPG_PIXEL_ASPECT_PAL;
292
293 return TPG_PIXEL_ASPECT_SQUARE;
294 }
295
296 int vivid_g_fmt_vid_out(struct file *file, void *priv,
297 struct v4l2_format *f)
298 {
299 struct vivid_dev *dev = video_drvdata(file);
300 struct v4l2_pix_format_mplane *mp = &f->fmt.pix_mp;
301 const struct vivid_fmt *fmt = dev->fmt_out;
302 unsigned p;
303
304 mp->width = dev->fmt_out_rect.width;
305 mp->height = dev->fmt_out_rect.height;
306 mp->field = dev->field_out;
307 mp->pixelformat = fmt->fourcc;
308 mp->colorspace = dev->colorspace_out;
309 mp->xfer_func = dev->xfer_func_out;
310 mp->ycbcr_enc = dev->ycbcr_enc_out;
311 mp->quantization = dev->quantization_out;
312 mp->num_planes = fmt->buffers;
313 for (p = 0; p < mp->num_planes; p++) {
314 mp->plane_fmt[p].bytesperline = dev->bytesperline_out[p];
315 mp->plane_fmt[p].sizeimage =
316 mp->plane_fmt[p].bytesperline * mp->height;
317 }
318 for (p = fmt->buffers; p < fmt->planes; p++) {
319 unsigned stride = dev->bytesperline_out[p];
320
321 mp->plane_fmt[0].sizeimage +=
322 (stride * mp->height) / fmt->vdownsampling[p];
323 }
324 return 0;
325 }
326
327 int vivid_try_fmt_vid_out(struct file *file, void *priv,
328 struct v4l2_format *f)
329 {
330 struct vivid_dev *dev = video_drvdata(file);
331 struct v4l2_bt_timings *bt = &dev->dv_timings_out.bt;
332 struct v4l2_pix_format_mplane *mp = &f->fmt.pix_mp;
333 struct v4l2_plane_pix_format *pfmt = mp->plane_fmt;
334 const struct vivid_fmt *fmt;
335 unsigned bytesperline, max_bpl;
336 unsigned factor = 1;
337 unsigned w, h;
338 unsigned p;
339
340 fmt = vivid_get_format(dev, mp->pixelformat);
341 if (!fmt) {
342 dprintk(dev, 1, "Fourcc format (0x%08x) unknown.\n",
343 mp->pixelformat);
344 mp->pixelformat = V4L2_PIX_FMT_YUYV;
345 fmt = vivid_get_format(dev, mp->pixelformat);
346 }
347
348 mp->field = vivid_field_out(dev, mp->field);
349 if (vivid_is_svid_out(dev)) {
350 w = 720;
351 h = (dev->std_out & V4L2_STD_525_60) ? 480 : 576;
352 } else {
353 w = dev->sink_rect.width;
354 h = dev->sink_rect.height;
355 }
356 if (V4L2_FIELD_HAS_T_OR_B(mp->field))
357 factor = 2;
358 if (!dev->has_scaler_out && !dev->has_crop_out && !dev->has_compose_out) {
359 mp->width = w;
360 mp->height = h / factor;
361 } else {
362 struct v4l2_rect r = { 0, 0, mp->width, mp->height * factor };
363
364 v4l2_rect_set_min_size(&r, &vivid_min_rect);
365 v4l2_rect_set_max_size(&r, &vivid_max_rect);
366 if (dev->has_scaler_out && !dev->has_crop_out) {
367 struct v4l2_rect max_r = { 0, 0, MAX_ZOOM * w, MAX_ZOOM * h };
368
369 v4l2_rect_set_max_size(&r, &max_r);
370 } else if (!dev->has_scaler_out && dev->has_compose_out && !dev->has_crop_out) {
371 v4l2_rect_set_max_size(&r, &dev->sink_rect);
372 } else if (!dev->has_scaler_out && !dev->has_compose_out) {
373 v4l2_rect_set_min_size(&r, &dev->sink_rect);
374 }
375 mp->width = r.width;
376 mp->height = r.height / factor;
377 }
378
379 /* This driver supports custom bytesperline values */
380
381 mp->num_planes = fmt->buffers;
382 for (p = 0; p < fmt->buffers; p++) {
383 /* Calculate the minimum supported bytesperline value */
384 bytesperline = (mp->width * fmt->bit_depth[p]) >> 3;
385 /* Calculate the maximum supported bytesperline value */
386 max_bpl = (MAX_ZOOM * MAX_WIDTH * fmt->bit_depth[p]) >> 3;
387
388 if (pfmt[p].bytesperline > max_bpl)
389 pfmt[p].bytesperline = max_bpl;
390 if (pfmt[p].bytesperline < bytesperline)
391 pfmt[p].bytesperline = bytesperline;
392
393 pfmt[p].sizeimage = (pfmt[p].bytesperline * mp->height) /
394 fmt->vdownsampling[p];
395
396 memset(pfmt[p].reserved, 0, sizeof(pfmt[p].reserved));
397 }
398 for (p = fmt->buffers; p < fmt->planes; p++)
399 pfmt[0].sizeimage += (pfmt[0].bytesperline * mp->height *
400 (fmt->bit_depth[p] / fmt->vdownsampling[p])) /
401 (fmt->bit_depth[0] / fmt->vdownsampling[0]);
402
403 mp->xfer_func = V4L2_XFER_FUNC_DEFAULT;
404 mp->ycbcr_enc = V4L2_YCBCR_ENC_DEFAULT;
405 mp->quantization = V4L2_QUANTIZATION_DEFAULT;
406 if (vivid_is_svid_out(dev)) {
407 mp->colorspace = V4L2_COLORSPACE_SMPTE170M;
408 } else if (dev->dvi_d_out || !(bt->flags & V4L2_DV_FL_IS_CE_VIDEO)) {
409 mp->colorspace = V4L2_COLORSPACE_SRGB;
410 if (dev->dvi_d_out)
411 mp->quantization = V4L2_QUANTIZATION_LIM_RANGE;
412 } else if (bt->width == 720 && bt->height <= 576) {
413 mp->colorspace = V4L2_COLORSPACE_SMPTE170M;
414 } else if (mp->colorspace != V4L2_COLORSPACE_SMPTE170M &&
415 mp->colorspace != V4L2_COLORSPACE_REC709 &&
416 mp->colorspace != V4L2_COLORSPACE_ADOBERGB &&
417 mp->colorspace != V4L2_COLORSPACE_BT2020 &&
418 mp->colorspace != V4L2_COLORSPACE_SRGB) {
419 mp->colorspace = V4L2_COLORSPACE_REC709;
420 }
421 memset(mp->reserved, 0, sizeof(mp->reserved));
422 return 0;
423 }
424
425 int vivid_s_fmt_vid_out(struct file *file, void *priv,
426 struct v4l2_format *f)
427 {
428 struct v4l2_pix_format_mplane *mp = &f->fmt.pix_mp;
429 struct vivid_dev *dev = video_drvdata(file);
430 struct v4l2_rect *crop = &dev->crop_out;
431 struct v4l2_rect *compose = &dev->compose_out;
432 struct vb2_queue *q = &dev->vb_vid_out_q;
433 int ret = vivid_try_fmt_vid_out(file, priv, f);
434 unsigned factor = 1;
435 unsigned p;
436
437 if (ret < 0)
438 return ret;
439
440 if (vb2_is_busy(q) &&
441 (vivid_is_svid_out(dev) ||
442 mp->width != dev->fmt_out_rect.width ||
443 mp->height != dev->fmt_out_rect.height ||
444 mp->pixelformat != dev->fmt_out->fourcc ||
445 mp->field != dev->field_out)) {
446 dprintk(dev, 1, "%s device busy\n", __func__);
447 return -EBUSY;
448 }
449
450 /*
451 * Allow for changing the colorspace on the fly. Useful for testing
452 * purposes, and it is something that HDMI transmitters are able
453 * to do.
454 */
455 if (vb2_is_busy(q))
456 goto set_colorspace;
457
458 dev->fmt_out = vivid_get_format(dev, mp->pixelformat);
459 if (V4L2_FIELD_HAS_T_OR_B(mp->field))
460 factor = 2;
461
462 if (dev->has_scaler_out || dev->has_crop_out || dev->has_compose_out) {
463 struct v4l2_rect r = { 0, 0, mp->width, mp->height };
464
465 if (dev->has_scaler_out) {
466 if (dev->has_crop_out)
467 v4l2_rect_map_inside(crop, &r);
468 else
469 *crop = r;
470 if (dev->has_compose_out && !dev->has_crop_out) {
471 struct v4l2_rect min_r = {
472 0, 0,
473 r.width / MAX_ZOOM,
474 factor * r.height / MAX_ZOOM
475 };
476 struct v4l2_rect max_r = {
477 0, 0,
478 r.width * MAX_ZOOM,
479 factor * r.height * MAX_ZOOM
480 };
481
482 v4l2_rect_set_min_size(compose, &min_r);
483 v4l2_rect_set_max_size(compose, &max_r);
484 v4l2_rect_map_inside(compose, &dev->compose_bounds_out);
485 } else if (dev->has_compose_out) {
486 struct v4l2_rect min_r = {
487 0, 0,
488 crop->width / MAX_ZOOM,
489 factor * crop->height / MAX_ZOOM
490 };
491 struct v4l2_rect max_r = {
492 0, 0,
493 crop->width * MAX_ZOOM,
494 factor * crop->height * MAX_ZOOM
495 };
496
497 v4l2_rect_set_min_size(compose, &min_r);
498 v4l2_rect_set_max_size(compose, &max_r);
499 v4l2_rect_map_inside(compose, &dev->compose_bounds_out);
500 }
501 } else if (dev->has_compose_out && !dev->has_crop_out) {
502 v4l2_rect_set_size_to(crop, &r);
503 r.height *= factor;
504 v4l2_rect_set_size_to(compose, &r);
505 v4l2_rect_map_inside(compose, &dev->compose_bounds_out);
506 } else if (!dev->has_compose_out) {
507 v4l2_rect_map_inside(crop, &r);
508 r.height /= factor;
509 v4l2_rect_set_size_to(compose, &r);
510 } else {
511 r.height *= factor;
512 v4l2_rect_set_max_size(compose, &r);
513 v4l2_rect_map_inside(compose, &dev->compose_bounds_out);
514 crop->top *= factor;
515 crop->height *= factor;
516 v4l2_rect_set_size_to(crop, compose);
517 v4l2_rect_map_inside(crop, &r);
518 crop->top /= factor;
519 crop->height /= factor;
520 }
521 } else {
522 struct v4l2_rect r = { 0, 0, mp->width, mp->height };
523
524 v4l2_rect_set_size_to(crop, &r);
525 r.height /= factor;
526 v4l2_rect_set_size_to(compose, &r);
527 }
528
529 dev->fmt_out_rect.width = mp->width;
530 dev->fmt_out_rect.height = mp->height;
531 for (p = 0; p < mp->num_planes; p++)
532 dev->bytesperline_out[p] = mp->plane_fmt[p].bytesperline;
533 for (p = dev->fmt_out->buffers; p < dev->fmt_out->planes; p++)
534 dev->bytesperline_out[p] =
535 (dev->bytesperline_out[0] * dev->fmt_out->bit_depth[p]) /
536 dev->fmt_out->bit_depth[0];
537 dev->field_out = mp->field;
538 if (vivid_is_svid_out(dev))
539 dev->tv_field_out = mp->field;
540
541 set_colorspace:
542 dev->colorspace_out = mp->colorspace;
543 dev->xfer_func_out = mp->xfer_func;
544 dev->ycbcr_enc_out = mp->ycbcr_enc;
545 dev->quantization_out = mp->quantization;
546 if (dev->loop_video) {
547 vivid_send_source_change(dev, SVID);
548 vivid_send_source_change(dev, HDMI);
549 }
550 return 0;
551 }
552
553 int vidioc_g_fmt_vid_out_mplane(struct file *file, void *priv,
554 struct v4l2_format *f)
555 {
556 struct vivid_dev *dev = video_drvdata(file);
557
558 if (!dev->multiplanar)
559 return -ENOTTY;
560 return vivid_g_fmt_vid_out(file, priv, f);
561 }
562
563 int vidioc_try_fmt_vid_out_mplane(struct file *file, void *priv,
564 struct v4l2_format *f)
565 {
566 struct vivid_dev *dev = video_drvdata(file);
567
568 if (!dev->multiplanar)
569 return -ENOTTY;
570 return vivid_try_fmt_vid_out(file, priv, f);
571 }
572
573 int vidioc_s_fmt_vid_out_mplane(struct file *file, void *priv,
574 struct v4l2_format *f)
575 {
576 struct vivid_dev *dev = video_drvdata(file);
577
578 if (!dev->multiplanar)
579 return -ENOTTY;
580 return vivid_s_fmt_vid_out(file, priv, f);
581 }
582
583 int vidioc_g_fmt_vid_out(struct file *file, void *priv,
584 struct v4l2_format *f)
585 {
586 struct vivid_dev *dev = video_drvdata(file);
587
588 if (dev->multiplanar)
589 return -ENOTTY;
590 return fmt_sp2mp_func(file, priv, f, vivid_g_fmt_vid_out);
591 }
592
593 int vidioc_try_fmt_vid_out(struct file *file, void *priv,
594 struct v4l2_format *f)
595 {
596 struct vivid_dev *dev = video_drvdata(file);
597
598 if (dev->multiplanar)
599 return -ENOTTY;
600 return fmt_sp2mp_func(file, priv, f, vivid_try_fmt_vid_out);
601 }
602
603 int vidioc_s_fmt_vid_out(struct file *file, void *priv,
604 struct v4l2_format *f)
605 {
606 struct vivid_dev *dev = video_drvdata(file);
607
608 if (dev->multiplanar)
609 return -ENOTTY;
610 return fmt_sp2mp_func(file, priv, f, vivid_s_fmt_vid_out);
611 }
612
613 int vivid_vid_out_g_selection(struct file *file, void *priv,
614 struct v4l2_selection *sel)
615 {
616 struct vivid_dev *dev = video_drvdata(file);
617
618 if (!dev->has_crop_out && !dev->has_compose_out)
619 return -ENOTTY;
620 if (sel->type != V4L2_BUF_TYPE_VIDEO_OUTPUT)
621 return -EINVAL;
622
623 sel->r.left = sel->r.top = 0;
624 switch (sel->target) {
625 case V4L2_SEL_TGT_CROP:
626 if (!dev->has_crop_out)
627 return -EINVAL;
628 sel->r = dev->crop_out;
629 break;
630 case V4L2_SEL_TGT_CROP_DEFAULT:
631 if (!dev->has_crop_out)
632 return -EINVAL;
633 sel->r = dev->fmt_out_rect;
634 break;
635 case V4L2_SEL_TGT_CROP_BOUNDS:
636 if (!dev->has_crop_out)
637 return -EINVAL;
638 sel->r = vivid_max_rect;
639 break;
640 case V4L2_SEL_TGT_COMPOSE:
641 if (!dev->has_compose_out)
642 return -EINVAL;
643 sel->r = dev->compose_out;
644 break;
645 case V4L2_SEL_TGT_COMPOSE_DEFAULT:
646 case V4L2_SEL_TGT_COMPOSE_BOUNDS:
647 if (!dev->has_compose_out)
648 return -EINVAL;
649 sel->r = dev->sink_rect;
650 break;
651 default:
652 return -EINVAL;
653 }
654 return 0;
655 }
656
657 int vivid_vid_out_s_selection(struct file *file, void *fh, struct v4l2_selection *s)
658 {
659 struct vivid_dev *dev = video_drvdata(file);
660 struct v4l2_rect *crop = &dev->crop_out;
661 struct v4l2_rect *compose = &dev->compose_out;
662 unsigned factor = V4L2_FIELD_HAS_T_OR_B(dev->field_out) ? 2 : 1;
663 int ret;
664
665 if (!dev->has_crop_out && !dev->has_compose_out)
666 return -ENOTTY;
667 if (s->type != V4L2_BUF_TYPE_VIDEO_OUTPUT)
668 return -EINVAL;
669
670 switch (s->target) {
671 case V4L2_SEL_TGT_CROP:
672 if (!dev->has_crop_out)
673 return -EINVAL;
674 ret = vivid_vid_adjust_sel(s->flags, &s->r);
675 if (ret)
676 return ret;
677 v4l2_rect_set_min_size(&s->r, &vivid_min_rect);
678 v4l2_rect_set_max_size(&s->r, &dev->fmt_out_rect);
679 if (dev->has_scaler_out) {
680 struct v4l2_rect max_rect = {
681 0, 0,
682 dev->sink_rect.width * MAX_ZOOM,
683 (dev->sink_rect.height / factor) * MAX_ZOOM
684 };
685
686 v4l2_rect_set_max_size(&s->r, &max_rect);
687 if (dev->has_compose_out) {
688 struct v4l2_rect min_rect = {
689 0, 0,
690 s->r.width / MAX_ZOOM,
691 (s->r.height * factor) / MAX_ZOOM
692 };
693 struct v4l2_rect max_rect = {
694 0, 0,
695 s->r.width * MAX_ZOOM,
696 (s->r.height * factor) * MAX_ZOOM
697 };
698
699 v4l2_rect_set_min_size(compose, &min_rect);
700 v4l2_rect_set_max_size(compose, &max_rect);
701 v4l2_rect_map_inside(compose, &dev->compose_bounds_out);
702 }
703 } else if (dev->has_compose_out) {
704 s->r.top *= factor;
705 s->r.height *= factor;
706 v4l2_rect_set_max_size(&s->r, &dev->sink_rect);
707 v4l2_rect_set_size_to(compose, &s->r);
708 v4l2_rect_map_inside(compose, &dev->compose_bounds_out);
709 s->r.top /= factor;
710 s->r.height /= factor;
711 } else {
712 v4l2_rect_set_size_to(&s->r, &dev->sink_rect);
713 s->r.height /= factor;
714 }
715 v4l2_rect_map_inside(&s->r, &dev->fmt_out_rect);
716 *crop = s->r;
717 break;
718 case V4L2_SEL_TGT_COMPOSE:
719 if (!dev->has_compose_out)
720 return -EINVAL;
721 ret = vivid_vid_adjust_sel(s->flags, &s->r);
722 if (ret)
723 return ret;
724 v4l2_rect_set_min_size(&s->r, &vivid_min_rect);
725 v4l2_rect_set_max_size(&s->r, &dev->sink_rect);
726 v4l2_rect_map_inside(&s->r, &dev->compose_bounds_out);
727 s->r.top /= factor;
728 s->r.height /= factor;
729 if (dev->has_scaler_out) {
730 struct v4l2_rect fmt = dev->fmt_out_rect;
731 struct v4l2_rect max_rect = {
732 0, 0,
733 s->r.width * MAX_ZOOM,
734 s->r.height * MAX_ZOOM
735 };
736 struct v4l2_rect min_rect = {
737 0, 0,
738 s->r.width / MAX_ZOOM,
739 s->r.height / MAX_ZOOM
740 };
741
742 v4l2_rect_set_min_size(&fmt, &min_rect);
743 if (!dev->has_crop_out)
744 v4l2_rect_set_max_size(&fmt, &max_rect);
745 if (!v4l2_rect_same_size(&dev->fmt_out_rect, &fmt) &&
746 vb2_is_busy(&dev->vb_vid_out_q))
747 return -EBUSY;
748 if (dev->has_crop_out) {
749 v4l2_rect_set_min_size(crop, &min_rect);
750 v4l2_rect_set_max_size(crop, &max_rect);
751 }
752 dev->fmt_out_rect = fmt;
753 } else if (dev->has_crop_out) {
754 struct v4l2_rect fmt = dev->fmt_out_rect;
755
756 v4l2_rect_set_min_size(&fmt, &s->r);
757 if (!v4l2_rect_same_size(&dev->fmt_out_rect, &fmt) &&
758 vb2_is_busy(&dev->vb_vid_out_q))
759 return -EBUSY;
760 dev->fmt_out_rect = fmt;
761 v4l2_rect_set_size_to(crop, &s->r);
762 v4l2_rect_map_inside(crop, &dev->fmt_out_rect);
763 } else {
764 if (!v4l2_rect_same_size(&s->r, &dev->fmt_out_rect) &&
765 vb2_is_busy(&dev->vb_vid_out_q))
766 return -EBUSY;
767 v4l2_rect_set_size_to(&dev->fmt_out_rect, &s->r);
768 v4l2_rect_set_size_to(crop, &s->r);
769 crop->height /= factor;
770 v4l2_rect_map_inside(crop, &dev->fmt_out_rect);
771 }
772 s->r.top *= factor;
773 s->r.height *= factor;
774 if (dev->bitmap_out && (compose->width != s->r.width ||
775 compose->height != s->r.height)) {
776 kfree(dev->bitmap_out);
777 dev->bitmap_out = NULL;
778 }
779 *compose = s->r;
780 break;
781 default:
782 return -EINVAL;
783 }
784
785 return 0;
786 }
787
788 int vivid_vid_out_cropcap(struct file *file, void *priv,
789 struct v4l2_cropcap *cap)
790 {
791 struct vivid_dev *dev = video_drvdata(file);
792
793 if (cap->type != V4L2_BUF_TYPE_VIDEO_OUTPUT)
794 return -EINVAL;
795
796 switch (vivid_get_pixel_aspect(dev)) {
797 case TPG_PIXEL_ASPECT_NTSC:
798 cap->pixelaspect.numerator = 11;
799 cap->pixelaspect.denominator = 10;
800 break;
801 case TPG_PIXEL_ASPECT_PAL:
802 cap->pixelaspect.numerator = 54;
803 cap->pixelaspect.denominator = 59;
804 break;
805 case TPG_PIXEL_ASPECT_SQUARE:
806 cap->pixelaspect.numerator = 1;
807 cap->pixelaspect.denominator = 1;
808 break;
809 }
810 return 0;
811 }
812
813 int vidioc_g_fmt_vid_out_overlay(struct file *file, void *priv,
814 struct v4l2_format *f)
815 {
816 struct vivid_dev *dev = video_drvdata(file);
817 const struct v4l2_rect *compose = &dev->compose_out;
818 struct v4l2_window *win = &f->fmt.win;
819 unsigned clipcount = win->clipcount;
820
821 if (!dev->has_fb)
822 return -EINVAL;
823 win->w.top = dev->overlay_out_top;
824 win->w.left = dev->overlay_out_left;
825 win->w.width = compose->width;
826 win->w.height = compose->height;
827 win->clipcount = dev->clipcount_out;
828 win->field = V4L2_FIELD_ANY;
829 win->chromakey = dev->chromakey_out;
830 win->global_alpha = dev->global_alpha_out;
831 if (clipcount > dev->clipcount_out)
832 clipcount = dev->clipcount_out;
833 if (dev->bitmap_out == NULL)
834 win->bitmap = NULL;
835 else if (win->bitmap) {
836 if (copy_to_user(win->bitmap, dev->bitmap_out,
837 ((dev->compose_out.width + 7) / 8) * dev->compose_out.height))
838 return -EFAULT;
839 }
840 if (clipcount && win->clips) {
841 if (copy_to_user(win->clips, dev->clips_out,
842 clipcount * sizeof(dev->clips_out[0])))
843 return -EFAULT;
844 }
845 return 0;
846 }
847
848 int vidioc_try_fmt_vid_out_overlay(struct file *file, void *priv,
849 struct v4l2_format *f)
850 {
851 struct vivid_dev *dev = video_drvdata(file);
852 const struct v4l2_rect *compose = &dev->compose_out;
853 struct v4l2_window *win = &f->fmt.win;
854 int i, j;
855
856 if (!dev->has_fb)
857 return -EINVAL;
858 win->w.left = clamp_t(int, win->w.left,
859 -dev->display_width, dev->display_width);
860 win->w.top = clamp_t(int, win->w.top,
861 -dev->display_height, dev->display_height);
862 win->w.width = compose->width;
863 win->w.height = compose->height;
864 /*
865 * It makes no sense for an OSD to overlay only top or bottom fields,
866 * so always set this to ANY.
867 */
868 win->field = V4L2_FIELD_ANY;
869 if (win->clipcount && !win->clips)
870 win->clipcount = 0;
871 if (win->clipcount > MAX_CLIPS)
872 win->clipcount = MAX_CLIPS;
873 if (win->clipcount) {
874 if (copy_from_user(dev->try_clips_out, win->clips,
875 win->clipcount * sizeof(dev->clips_out[0])))
876 return -EFAULT;
877 for (i = 0; i < win->clipcount; i++) {
878 struct v4l2_rect *r = &dev->try_clips_out[i].c;
879
880 r->top = clamp_t(s32, r->top, 0, dev->display_height - 1);
881 r->height = clamp_t(s32, r->height, 1, dev->display_height - r->top);
882 r->left = clamp_t(u32, r->left, 0, dev->display_width - 1);
883 r->width = clamp_t(u32, r->width, 1, dev->display_width - r->left);
884 }
885 /*
886 * Yeah, so sue me, it's an O(n^2) algorithm. But n is a small
887 * number and it's typically a one-time deal.
888 */
889 for (i = 0; i < win->clipcount - 1; i++) {
890 struct v4l2_rect *r1 = &dev->try_clips_out[i].c;
891
892 for (j = i + 1; j < win->clipcount; j++) {
893 struct v4l2_rect *r2 = &dev->try_clips_out[j].c;
894
895 if (v4l2_rect_overlap(r1, r2))
896 return -EINVAL;
897 }
898 }
899 if (copy_to_user(win->clips, dev->try_clips_out,
900 win->clipcount * sizeof(dev->clips_out[0])))
901 return -EFAULT;
902 }
903 return 0;
904 }
905
906 int vidioc_s_fmt_vid_out_overlay(struct file *file, void *priv,
907 struct v4l2_format *f)
908 {
909 struct vivid_dev *dev = video_drvdata(file);
910 const struct v4l2_rect *compose = &dev->compose_out;
911 struct v4l2_window *win = &f->fmt.win;
912 int ret = vidioc_try_fmt_vid_out_overlay(file, priv, f);
913 unsigned bitmap_size = ((compose->width + 7) / 8) * compose->height;
914 unsigned clips_size = win->clipcount * sizeof(dev->clips_out[0]);
915 void *new_bitmap = NULL;
916
917 if (ret)
918 return ret;
919
920 if (win->bitmap) {
921 new_bitmap = memdup_user(win->bitmap, bitmap_size);
922
923 if (IS_ERR(new_bitmap))
924 return PTR_ERR(new_bitmap);
925 }
926
927 dev->overlay_out_top = win->w.top;
928 dev->overlay_out_left = win->w.left;
929 kfree(dev->bitmap_out);
930 dev->bitmap_out = new_bitmap;
931 dev->clipcount_out = win->clipcount;
932 if (dev->clipcount_out)
933 memcpy(dev->clips_out, dev->try_clips_out, clips_size);
934 dev->chromakey_out = win->chromakey;
935 dev->global_alpha_out = win->global_alpha;
936 return ret;
937 }
938
939 int vivid_vid_out_overlay(struct file *file, void *fh, unsigned i)
940 {
941 struct vivid_dev *dev = video_drvdata(file);
942
943 if (i && !dev->fmt_out->can_do_overlay) {
944 dprintk(dev, 1, "unsupported output format for output overlay\n");
945 return -EINVAL;
946 }
947
948 dev->overlay_out_enabled = i;
949 return 0;
950 }
951
952 int vivid_vid_out_g_fbuf(struct file *file, void *fh,
953 struct v4l2_framebuffer *a)
954 {
955 struct vivid_dev *dev = video_drvdata(file);
956
957 a->capability = V4L2_FBUF_CAP_EXTERNOVERLAY |
958 V4L2_FBUF_CAP_BITMAP_CLIPPING |
959 V4L2_FBUF_CAP_LIST_CLIPPING |
960 V4L2_FBUF_CAP_CHROMAKEY |
961 V4L2_FBUF_CAP_SRC_CHROMAKEY |
962 V4L2_FBUF_CAP_GLOBAL_ALPHA |
963 V4L2_FBUF_CAP_LOCAL_ALPHA |
964 V4L2_FBUF_CAP_LOCAL_INV_ALPHA;
965 a->flags = V4L2_FBUF_FLAG_OVERLAY | dev->fbuf_out_flags;
966 a->base = (void *)dev->video_pbase;
967 a->fmt.width = dev->display_width;
968 a->fmt.height = dev->display_height;
969 if (dev->fb_defined.green.length == 5)
970 a->fmt.pixelformat = V4L2_PIX_FMT_ARGB555;
971 else
972 a->fmt.pixelformat = V4L2_PIX_FMT_RGB565;
973 a->fmt.bytesperline = dev->display_byte_stride;
974 a->fmt.sizeimage = a->fmt.height * a->fmt.bytesperline;
975 a->fmt.field = V4L2_FIELD_NONE;
976 a->fmt.colorspace = V4L2_COLORSPACE_SRGB;
977 a->fmt.priv = 0;
978 return 0;
979 }
980
981 int vivid_vid_out_s_fbuf(struct file *file, void *fh,
982 const struct v4l2_framebuffer *a)
983 {
984 struct vivid_dev *dev = video_drvdata(file);
985 const unsigned chroma_flags = V4L2_FBUF_FLAG_CHROMAKEY |
986 V4L2_FBUF_FLAG_SRC_CHROMAKEY;
987 const unsigned alpha_flags = V4L2_FBUF_FLAG_GLOBAL_ALPHA |
988 V4L2_FBUF_FLAG_LOCAL_ALPHA |
989 V4L2_FBUF_FLAG_LOCAL_INV_ALPHA;
990
991
992 if ((a->flags & chroma_flags) == chroma_flags)
993 return -EINVAL;
994 switch (a->flags & alpha_flags) {
995 case 0:
996 case V4L2_FBUF_FLAG_GLOBAL_ALPHA:
997 case V4L2_FBUF_FLAG_LOCAL_ALPHA:
998 case V4L2_FBUF_FLAG_LOCAL_INV_ALPHA:
999 break;
1000 default:
1001 return -EINVAL;
1002 }
1003 dev->fbuf_out_flags &= ~(chroma_flags | alpha_flags);
1004 dev->fbuf_out_flags = a->flags & (chroma_flags | alpha_flags);
1005 return 0;
1006 }
1007
1008 static const struct v4l2_audioout vivid_audio_outputs[] = {
1009 { 0, "Line-Out 1" },
1010 { 1, "Line-Out 2" },
1011 };
1012
1013 int vidioc_enum_output(struct file *file, void *priv,
1014 struct v4l2_output *out)
1015 {
1016 struct vivid_dev *dev = video_drvdata(file);
1017
1018 if (out->index >= dev->num_outputs)
1019 return -EINVAL;
1020
1021 out->type = V4L2_OUTPUT_TYPE_ANALOG;
1022 switch (dev->output_type[out->index]) {
1023 case SVID:
1024 snprintf(out->name, sizeof(out->name), "S-Video %u",
1025 dev->output_name_counter[out->index]);
1026 out->std = V4L2_STD_ALL;
1027 if (dev->has_audio_outputs)
1028 out->audioset = (1 << ARRAY_SIZE(vivid_audio_outputs)) - 1;
1029 out->capabilities = V4L2_OUT_CAP_STD;
1030 break;
1031 case HDMI:
1032 snprintf(out->name, sizeof(out->name), "HDMI %u",
1033 dev->output_name_counter[out->index]);
1034 out->capabilities = V4L2_OUT_CAP_DV_TIMINGS;
1035 break;
1036 }
1037 return 0;
1038 }
1039
1040 int vidioc_g_output(struct file *file, void *priv, unsigned *o)
1041 {
1042 struct vivid_dev *dev = video_drvdata(file);
1043
1044 *o = dev->output;
1045 return 0;
1046 }
1047
1048 int vidioc_s_output(struct file *file, void *priv, unsigned o)
1049 {
1050 struct vivid_dev *dev = video_drvdata(file);
1051
1052 if (o >= dev->num_outputs)
1053 return -EINVAL;
1054
1055 if (o == dev->output)
1056 return 0;
1057
1058 if (vb2_is_busy(&dev->vb_vid_out_q) || vb2_is_busy(&dev->vb_vbi_out_q))
1059 return -EBUSY;
1060
1061 dev->output = o;
1062 dev->tv_audio_output = 0;
1063 if (dev->output_type[o] == SVID)
1064 dev->vid_out_dev.tvnorms = V4L2_STD_ALL;
1065 else
1066 dev->vid_out_dev.tvnorms = 0;
1067
1068 dev->vbi_out_dev.tvnorms = dev->vid_out_dev.tvnorms;
1069 vivid_update_format_out(dev);
1070 return 0;
1071 }
1072
1073 int vidioc_enumaudout(struct file *file, void *fh, struct v4l2_audioout *vout)
1074 {
1075 if (vout->index >= ARRAY_SIZE(vivid_audio_outputs))
1076 return -EINVAL;
1077 *vout = vivid_audio_outputs[vout->index];
1078 return 0;
1079 }
1080
1081 int vidioc_g_audout(struct file *file, void *fh, struct v4l2_audioout *vout)
1082 {
1083 struct vivid_dev *dev = video_drvdata(file);
1084
1085 if (!vivid_is_svid_out(dev))
1086 return -EINVAL;
1087 *vout = vivid_audio_outputs[dev->tv_audio_output];
1088 return 0;
1089 }
1090
1091 int vidioc_s_audout(struct file *file, void *fh, const struct v4l2_audioout *vout)
1092 {
1093 struct vivid_dev *dev = video_drvdata(file);
1094
1095 if (!vivid_is_svid_out(dev))
1096 return -EINVAL;
1097 if (vout->index >= ARRAY_SIZE(vivid_audio_outputs))
1098 return -EINVAL;
1099 dev->tv_audio_output = vout->index;
1100 return 0;
1101 }
1102
1103 int vivid_vid_out_s_std(struct file *file, void *priv, v4l2_std_id id)
1104 {
1105 struct vivid_dev *dev = video_drvdata(file);
1106
1107 if (!vivid_is_svid_out(dev))
1108 return -ENODATA;
1109 if (dev->std_out == id)
1110 return 0;
1111 if (vb2_is_busy(&dev->vb_vid_out_q) || vb2_is_busy(&dev->vb_vbi_out_q))
1112 return -EBUSY;
1113 dev->std_out = id;
1114 vivid_update_format_out(dev);
1115 return 0;
1116 }
1117
1118 static bool valid_cvt_gtf_timings(struct v4l2_dv_timings *timings)
1119 {
1120 struct v4l2_bt_timings *bt = &timings->bt;
1121
1122 if ((bt->standards & (V4L2_DV_BT_STD_CVT | V4L2_DV_BT_STD_GTF)) &&
1123 v4l2_valid_dv_timings(timings, &vivid_dv_timings_cap, NULL, NULL))
1124 return true;
1125
1126 return false;
1127 }
1128
1129 int vivid_vid_out_s_dv_timings(struct file *file, void *_fh,
1130 struct v4l2_dv_timings *timings)
1131 {
1132 struct vivid_dev *dev = video_drvdata(file);
1133 if (!vivid_is_hdmi_out(dev))
1134 return -ENODATA;
1135 if (!v4l2_find_dv_timings_cap(timings, &vivid_dv_timings_cap,
1136 0, NULL, NULL) &&
1137 !valid_cvt_gtf_timings(timings))
1138 return -EINVAL;
1139 if (v4l2_match_dv_timings(timings, &dev->dv_timings_out, 0, true))
1140 return 0;
1141 if (vb2_is_busy(&dev->vb_vid_out_q))
1142 return -EBUSY;
1143 dev->dv_timings_out = *timings;
1144 vivid_update_format_out(dev);
1145 return 0;
1146 }
1147
1148 int vivid_vid_out_g_parm(struct file *file, void *priv,
1149 struct v4l2_streamparm *parm)
1150 {
1151 struct vivid_dev *dev = video_drvdata(file);
1152
1153 if (parm->type != (dev->multiplanar ?
1154 V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE :
1155 V4L2_BUF_TYPE_VIDEO_OUTPUT))
1156 return -EINVAL;
1157
1158 parm->parm.output.capability = V4L2_CAP_TIMEPERFRAME;
1159 parm->parm.output.timeperframe = dev->timeperframe_vid_out;
1160 parm->parm.output.writebuffers = 1;
1161
1162 return 0;
1163 }
1164
1165 int vidioc_subscribe_event(struct v4l2_fh *fh,
1166 const struct v4l2_event_subscription *sub)
1167 {
1168 switch (sub->type) {
1169 case V4L2_EVENT_SOURCE_CHANGE:
1170 if (fh->vdev->vfl_dir == VFL_DIR_RX)
1171 return v4l2_src_change_event_subscribe(fh, sub);
1172 break;
1173 default:
1174 return v4l2_ctrl_subscribe_event(fh, sub);
1175 }
1176 return -EINVAL;
1177 }
Linux with added FPC-III support