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 static const struct vivid_fmt formats_ovl[] = {
25 {
26 .fourcc = V4L2_PIX_FMT_RGB565, /* gggbbbbb rrrrrggg */
27 .vdownsampling = { 1 },
28 .bit_depth = { 16 },
29 .planes = 1,
30 .buffers = 1,
31 },
32 {
33 .fourcc = V4L2_PIX_FMT_XRGB555, /* gggbbbbb arrrrrgg */
34 .vdownsampling = { 1 },
35 .bit_depth = { 16 },
36 .planes = 1,
37 .buffers = 1,
38 },
39 {
40 .fourcc = V4L2_PIX_FMT_ARGB555, /* gggbbbbb arrrrrgg */
41 .vdownsampling = { 1 },
42 .bit_depth = { 16 },
43 .planes = 1,
44 .buffers = 1,
45 },
46 };
47
48 /* The number of discrete webcam framesizes */
49 #define VIVID_WEBCAM_SIZES 6
50 /* The number of discrete webcam frameintervals */
51 #define VIVID_WEBCAM_IVALS (VIVID_WEBCAM_SIZES * 2)
52
53 /* Sizes must be in increasing order */
54 static const struct v4l2_frmsize_discrete webcam_sizes[VIVID_WEBCAM_SIZES] = {
55 { 320, 180 },
56 { 640, 360 },
57 { 640, 480 },
58 { 1280, 720 },
59 { 1920, 1080 },
60 { 3840, 2160 },
61 };
62
63 /*
64 * Intervals must be in increasing order and there must be twice as many
65 * elements in this array as there are in webcam_sizes.
66 */
67 static const struct v4l2_fract webcam_intervals[VIVID_WEBCAM_IVALS] = {
68 { 1, 1 },
69 { 1, 2 },
70 { 1, 4 },
71 { 1, 5 },
72 { 1, 10 },
73 { 2, 25 },
74 { 1, 15 },
75 { 1, 25 },
76 { 1, 30 },
77 { 1, 40 },
78 { 1, 50 },
79 { 1, 60 },
80 };
81
vid_cap_queue_setup(struct vb2_queue * vq,unsigned * nbuffers,unsigned * nplanes,unsigned sizes[],struct device * alloc_devs[])82 static int vid_cap_queue_setup(struct vb2_queue *vq,
83 unsigned *nbuffers, unsigned *nplanes,
84 unsigned sizes[], struct device *alloc_devs[])
85 {
86 struct vivid_dev *dev = vb2_get_drv_priv(vq);
87 unsigned buffers = tpg_g_buffers(&dev->tpg);
88 unsigned h = dev->fmt_cap_rect.height;
89 unsigned p;
90
91 if (dev->field_cap == V4L2_FIELD_ALTERNATE) {
92 /*
93 * You cannot use read() with FIELD_ALTERNATE since the field
94 * information (TOP/BOTTOM) cannot be passed back to the user.
95 */
96 if (vb2_fileio_is_active(vq))
97 return -EINVAL;
98 }
99
100 if (dev->queue_setup_error) {
101 /*
102 * Error injection: test what happens if queue_setup() returns
103 * an error.
104 */
105 dev->queue_setup_error = false;
106 return -EINVAL;
107 }
108 if (*nplanes) {
109 /*
110 * Check if the number of requested planes match
111 * the number of buffers in the current format. You can't mix that.
112 */
113 if (*nplanes != buffers)
114 return -EINVAL;
115 for (p = 0; p < buffers; p++) {
116 if (sizes[p] < tpg_g_line_width(&dev->tpg, p) * h +
117 dev->fmt_cap->data_offset[p])
118 return -EINVAL;
119 }
120 } else {
121 for (p = 0; p < buffers; p++)
122 sizes[p] = (tpg_g_line_width(&dev->tpg, p) * h) /
123 dev->fmt_cap->vdownsampling[p] +
124 dev->fmt_cap->data_offset[p];
125 }
126
127 if (vq->num_buffers + *nbuffers < 2)
128 *nbuffers = 2 - vq->num_buffers;
129
130 *nplanes = buffers;
131
132 dprintk(dev, 1, "%s: count=%d\n", __func__, *nbuffers);
133 for (p = 0; p < buffers; p++)
134 dprintk(dev, 1, "%s: size[%u]=%u\n", __func__, p, sizes[p]);
135
136 return 0;
137 }
138
vid_cap_buf_prepare(struct vb2_buffer * vb)139 static int vid_cap_buf_prepare(struct vb2_buffer *vb)
140 {
141 struct vivid_dev *dev = vb2_get_drv_priv(vb->vb2_queue);
142 unsigned long size;
143 unsigned buffers = tpg_g_buffers(&dev->tpg);
144 unsigned p;
145
146 dprintk(dev, 1, "%s\n", __func__);
147
148 if (WARN_ON(NULL == dev->fmt_cap))
149 return -EINVAL;
150
151 if (dev->buf_prepare_error) {
152 /*
153 * Error injection: test what happens if buf_prepare() returns
154 * an error.
155 */
156 dev->buf_prepare_error = false;
157 return -EINVAL;
158 }
159 for (p = 0; p < buffers; p++) {
160 size = (tpg_g_line_width(&dev->tpg, p) *
161 dev->fmt_cap_rect.height) /
162 dev->fmt_cap->vdownsampling[p] +
163 dev->fmt_cap->data_offset[p];
164
165 if (vb2_plane_size(vb, p) < size) {
166 dprintk(dev, 1, "%s data will not fit into plane %u (%lu < %lu)\n",
167 __func__, p, vb2_plane_size(vb, p), size);
168 return -EINVAL;
169 }
170
171 vb2_set_plane_payload(vb, p, size);
172 vb->planes[p].data_offset = dev->fmt_cap->data_offset[p];
173 }
174
175 return 0;
176 }
177
vid_cap_buf_finish(struct vb2_buffer * vb)178 static void vid_cap_buf_finish(struct vb2_buffer *vb)
179 {
180 struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
181 struct vivid_dev *dev = vb2_get_drv_priv(vb->vb2_queue);
182 struct v4l2_timecode *tc = &vbuf->timecode;
183 unsigned fps = 25;
184 unsigned seq = vbuf->sequence;
185
186 if (!vivid_is_sdtv_cap(dev))
187 return;
188
189 /*
190 * Set the timecode. Rarely used, so it is interesting to
191 * test this.
192 */
193 vbuf->flags |= V4L2_BUF_FLAG_TIMECODE;
194 if (dev->std_cap[dev->input] & V4L2_STD_525_60)
195 fps = 30;
196 tc->type = (fps == 30) ? V4L2_TC_TYPE_30FPS : V4L2_TC_TYPE_25FPS;
197 tc->flags = 0;
198 tc->frames = seq % fps;
199 tc->seconds = (seq / fps) % 60;
200 tc->minutes = (seq / (60 * fps)) % 60;
201 tc->hours = (seq / (60 * 60 * fps)) % 24;
202 }
203
vid_cap_buf_queue(struct vb2_buffer * vb)204 static void vid_cap_buf_queue(struct vb2_buffer *vb)
205 {
206 struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
207 struct vivid_dev *dev = vb2_get_drv_priv(vb->vb2_queue);
208 struct vivid_buffer *buf = container_of(vbuf, struct vivid_buffer, vb);
209
210 dprintk(dev, 1, "%s\n", __func__);
211
212 spin_lock(&dev->slock);
213 list_add_tail(&buf->list, &dev->vid_cap_active);
214 spin_unlock(&dev->slock);
215 }
216
vid_cap_start_streaming(struct vb2_queue * vq,unsigned count)217 static int vid_cap_start_streaming(struct vb2_queue *vq, unsigned count)
218 {
219 struct vivid_dev *dev = vb2_get_drv_priv(vq);
220 unsigned i;
221 int err;
222
223 if (vb2_is_streaming(&dev->vb_vid_out_q))
224 dev->can_loop_video = vivid_vid_can_loop(dev);
225
226 dev->vid_cap_seq_count = 0;
227 dprintk(dev, 1, "%s\n", __func__);
228 for (i = 0; i < VIDEO_MAX_FRAME; i++)
229 dev->must_blank[i] = tpg_g_perc_fill(&dev->tpg) < 100;
230 if (dev->start_streaming_error) {
231 dev->start_streaming_error = false;
232 err = -EINVAL;
233 } else {
234 err = vivid_start_generating_vid_cap(dev, &dev->vid_cap_streaming);
235 }
236 if (err) {
237 struct vivid_buffer *buf, *tmp;
238
239 list_for_each_entry_safe(buf, tmp, &dev->vid_cap_active, list) {
240 list_del(&buf->list);
241 vb2_buffer_done(&buf->vb.vb2_buf,
242 VB2_BUF_STATE_QUEUED);
243 }
244 }
245 return err;
246 }
247
248 /* abort streaming and wait for last buffer */
vid_cap_stop_streaming(struct vb2_queue * vq)249 static void vid_cap_stop_streaming(struct vb2_queue *vq)
250 {
251 struct vivid_dev *dev = vb2_get_drv_priv(vq);
252
253 dprintk(dev, 1, "%s\n", __func__);
254 vivid_stop_generating_vid_cap(dev, &dev->vid_cap_streaming);
255 dev->can_loop_video = false;
256 }
257
vid_cap_buf_request_complete(struct vb2_buffer * vb)258 static void vid_cap_buf_request_complete(struct vb2_buffer *vb)
259 {
260 struct vivid_dev *dev = vb2_get_drv_priv(vb->vb2_queue);
261
262 v4l2_ctrl_request_complete(vb->req_obj.req, &dev->ctrl_hdl_vid_cap);
263 }
264
265 const struct vb2_ops vivid_vid_cap_qops = {
266 .queue_setup = vid_cap_queue_setup,
267 .buf_prepare = vid_cap_buf_prepare,
268 .buf_finish = vid_cap_buf_finish,
269 .buf_queue = vid_cap_buf_queue,
270 .start_streaming = vid_cap_start_streaming,
271 .stop_streaming = vid_cap_stop_streaming,
272 .buf_request_complete = vid_cap_buf_request_complete,
273 .wait_prepare = vb2_ops_wait_prepare,
274 .wait_finish = vb2_ops_wait_finish,
275 };
276
277 /*
278 * Determine the 'picture' quality based on the current TV frequency: either
279 * COLOR for a good 'signal', GRAY (grayscale picture) for a slightly off
280 * signal or NOISE for no signal.
281 */
vivid_update_quality(struct vivid_dev * dev)282 void vivid_update_quality(struct vivid_dev *dev)
283 {
284 unsigned freq_modulus;
285
286 if (dev->loop_video && (vivid_is_svid_cap(dev) || vivid_is_hdmi_cap(dev))) {
287 /*
288 * The 'noise' will only be replaced by the actual video
289 * if the output video matches the input video settings.
290 */
291 tpg_s_quality(&dev->tpg, TPG_QUAL_NOISE, 0);
292 return;
293 }
294 if (vivid_is_hdmi_cap(dev) &&
295 VIVID_INVALID_SIGNAL(dev->dv_timings_signal_mode[dev->input])) {
296 tpg_s_quality(&dev->tpg, TPG_QUAL_NOISE, 0);
297 return;
298 }
299 if (vivid_is_sdtv_cap(dev) &&
300 VIVID_INVALID_SIGNAL(dev->std_signal_mode[dev->input])) {
301 tpg_s_quality(&dev->tpg, TPG_QUAL_NOISE, 0);
302 return;
303 }
304 if (!vivid_is_tv_cap(dev)) {
305 tpg_s_quality(&dev->tpg, TPG_QUAL_COLOR, 0);
306 return;
307 }
308
309 /*
310 * There is a fake channel every 6 MHz at 49.25, 55.25, etc.
311 * From +/- 0.25 MHz around the channel there is color, and from
312 * +/- 1 MHz there is grayscale (chroma is lost).
313 * Everywhere else it is just noise.
314 */
315 freq_modulus = (dev->tv_freq - 676 /* (43.25-1) * 16 */) % (6 * 16);
316 if (freq_modulus > 2 * 16) {
317 tpg_s_quality(&dev->tpg, TPG_QUAL_NOISE,
318 next_pseudo_random32(dev->tv_freq ^ 0x55) & 0x3f);
319 return;
320 }
321 if (freq_modulus < 12 /*0.75 * 16*/ || freq_modulus > 20 /*1.25 * 16*/)
322 tpg_s_quality(&dev->tpg, TPG_QUAL_GRAY, 0);
323 else
324 tpg_s_quality(&dev->tpg, TPG_QUAL_COLOR, 0);
325 }
326
327 /*
328 * Get the current picture quality and the associated afc value.
329 */
vivid_get_quality(struct vivid_dev * dev,s32 * afc)330 static enum tpg_quality vivid_get_quality(struct vivid_dev *dev, s32 *afc)
331 {
332 unsigned freq_modulus;
333
334 if (afc)
335 *afc = 0;
336 if (tpg_g_quality(&dev->tpg) == TPG_QUAL_COLOR ||
337 tpg_g_quality(&dev->tpg) == TPG_QUAL_NOISE)
338 return tpg_g_quality(&dev->tpg);
339
340 /*
341 * There is a fake channel every 6 MHz at 49.25, 55.25, etc.
342 * From +/- 0.25 MHz around the channel there is color, and from
343 * +/- 1 MHz there is grayscale (chroma is lost).
344 * Everywhere else it is just gray.
345 */
346 freq_modulus = (dev->tv_freq - 676 /* (43.25-1) * 16 */) % (6 * 16);
347 if (afc)
348 *afc = freq_modulus - 1 * 16;
349 return TPG_QUAL_GRAY;
350 }
351
vivid_get_video_aspect(const struct vivid_dev * dev)352 enum tpg_video_aspect vivid_get_video_aspect(const struct vivid_dev *dev)
353 {
354 if (vivid_is_sdtv_cap(dev))
355 return dev->std_aspect_ratio[dev->input];
356
357 if (vivid_is_hdmi_cap(dev))
358 return dev->dv_timings_aspect_ratio[dev->input];
359
360 return TPG_VIDEO_ASPECT_IMAGE;
361 }
362
vivid_get_pixel_aspect(const struct vivid_dev * dev)363 static enum tpg_pixel_aspect vivid_get_pixel_aspect(const struct vivid_dev *dev)
364 {
365 if (vivid_is_sdtv_cap(dev))
366 return (dev->std_cap[dev->input] & V4L2_STD_525_60) ?
367 TPG_PIXEL_ASPECT_NTSC : TPG_PIXEL_ASPECT_PAL;
368
369 if (vivid_is_hdmi_cap(dev) &&
370 dev->src_rect.width == 720 && dev->src_rect.height <= 576)
371 return dev->src_rect.height == 480 ?
372 TPG_PIXEL_ASPECT_NTSC : TPG_PIXEL_ASPECT_PAL;
373
374 return TPG_PIXEL_ASPECT_SQUARE;
375 }
376
377 /*
378 * Called whenever the format has to be reset which can occur when
379 * changing inputs, standard, timings, etc.
380 */
vivid_update_format_cap(struct vivid_dev * dev,bool keep_controls)381 void vivid_update_format_cap(struct vivid_dev *dev, bool keep_controls)
382 {
383 struct v4l2_bt_timings *bt = &dev->dv_timings_cap[dev->input].bt;
384 u32 dims[V4L2_CTRL_MAX_DIMS] = {};
385 unsigned size;
386 u64 pixelclock;
387
388 switch (dev->input_type[dev->input]) {
389 case WEBCAM:
390 default:
391 dev->src_rect.width = webcam_sizes[dev->webcam_size_idx].width;
392 dev->src_rect.height = webcam_sizes[dev->webcam_size_idx].height;
393 dev->timeperframe_vid_cap = webcam_intervals[dev->webcam_ival_idx];
394 dev->field_cap = V4L2_FIELD_NONE;
395 tpg_s_rgb_range(&dev->tpg, V4L2_DV_RGB_RANGE_AUTO);
396 break;
397 case TV:
398 case SVID:
399 dev->field_cap = dev->tv_field_cap;
400 dev->src_rect.width = 720;
401 if (dev->std_cap[dev->input] & V4L2_STD_525_60) {
402 dev->src_rect.height = 480;
403 dev->timeperframe_vid_cap = (struct v4l2_fract) { 1001, 30000 };
404 dev->service_set_cap = V4L2_SLICED_CAPTION_525;
405 } else {
406 dev->src_rect.height = 576;
407 dev->timeperframe_vid_cap = (struct v4l2_fract) { 1000, 25000 };
408 dev->service_set_cap = V4L2_SLICED_WSS_625 | V4L2_SLICED_TELETEXT_B;
409 }
410 tpg_s_rgb_range(&dev->tpg, V4L2_DV_RGB_RANGE_AUTO);
411 break;
412 case HDMI:
413 dev->src_rect.width = bt->width;
414 dev->src_rect.height = bt->height;
415 size = V4L2_DV_BT_FRAME_WIDTH(bt) * V4L2_DV_BT_FRAME_HEIGHT(bt);
416 if (dev->reduced_fps && can_reduce_fps(bt)) {
417 pixelclock = div_u64(bt->pixelclock * 1000, 1001);
418 bt->flags |= V4L2_DV_FL_REDUCED_FPS;
419 } else {
420 pixelclock = bt->pixelclock;
421 bt->flags &= ~V4L2_DV_FL_REDUCED_FPS;
422 }
423 dev->timeperframe_vid_cap = (struct v4l2_fract) {
424 size / 100, (u32)pixelclock / 100
425 };
426 if (bt->interlaced)
427 dev->field_cap = V4L2_FIELD_ALTERNATE;
428 else
429 dev->field_cap = V4L2_FIELD_NONE;
430
431 /*
432 * We can be called from within s_ctrl, in that case we can't
433 * set/get controls. Luckily we don't need to in that case.
434 */
435 if (keep_controls || !dev->colorspace)
436 break;
437 if (bt->flags & V4L2_DV_FL_IS_CE_VIDEO) {
438 if (bt->width == 720 && bt->height <= 576)
439 v4l2_ctrl_s_ctrl(dev->colorspace, VIVID_CS_170M);
440 else
441 v4l2_ctrl_s_ctrl(dev->colorspace, VIVID_CS_709);
442 v4l2_ctrl_s_ctrl(dev->real_rgb_range_cap, 1);
443 } else {
444 v4l2_ctrl_s_ctrl(dev->colorspace, VIVID_CS_SRGB);
445 v4l2_ctrl_s_ctrl(dev->real_rgb_range_cap, 0);
446 }
447 tpg_s_rgb_range(&dev->tpg, v4l2_ctrl_g_ctrl(dev->rgb_range_cap));
448 break;
449 }
450 vfree(dev->bitmap_cap);
451 dev->bitmap_cap = NULL;
452 vivid_update_quality(dev);
453 tpg_reset_source(&dev->tpg, dev->src_rect.width, dev->src_rect.height, dev->field_cap);
454 dev->crop_cap = dev->src_rect;
455 dev->crop_bounds_cap = dev->src_rect;
456 if (dev->bitmap_cap &&
457 (dev->compose_cap.width != dev->crop_cap.width ||
458 dev->compose_cap.height != dev->crop_cap.height)) {
459 vfree(dev->bitmap_cap);
460 dev->bitmap_cap = NULL;
461 }
462 dev->compose_cap = dev->crop_cap;
463 if (V4L2_FIELD_HAS_T_OR_B(dev->field_cap))
464 dev->compose_cap.height /= 2;
465 dev->fmt_cap_rect = dev->compose_cap;
466 tpg_s_video_aspect(&dev->tpg, vivid_get_video_aspect(dev));
467 tpg_s_pixel_aspect(&dev->tpg, vivid_get_pixel_aspect(dev));
468 tpg_update_mv_step(&dev->tpg);
469
470 /*
471 * We can be called from within s_ctrl, in that case we can't
472 * modify controls. Luckily we don't need to in that case.
473 */
474 if (keep_controls)
475 return;
476
477 dims[0] = roundup(dev->src_rect.width, PIXEL_ARRAY_DIV);
478 dims[1] = roundup(dev->src_rect.height, PIXEL_ARRAY_DIV);
479 v4l2_ctrl_modify_dimensions(dev->pixel_array, dims);
480 }
481
482 /* Map the field to something that is valid for the current input */
vivid_field_cap(struct vivid_dev * dev,enum v4l2_field field)483 static enum v4l2_field vivid_field_cap(struct vivid_dev *dev, enum v4l2_field field)
484 {
485 if (vivid_is_sdtv_cap(dev)) {
486 switch (field) {
487 case V4L2_FIELD_INTERLACED_TB:
488 case V4L2_FIELD_INTERLACED_BT:
489 case V4L2_FIELD_SEQ_TB:
490 case V4L2_FIELD_SEQ_BT:
491 case V4L2_FIELD_TOP:
492 case V4L2_FIELD_BOTTOM:
493 case V4L2_FIELD_ALTERNATE:
494 return field;
495 case V4L2_FIELD_INTERLACED:
496 default:
497 return V4L2_FIELD_INTERLACED;
498 }
499 }
500 if (vivid_is_hdmi_cap(dev))
501 return dev->dv_timings_cap[dev->input].bt.interlaced ?
502 V4L2_FIELD_ALTERNATE : V4L2_FIELD_NONE;
503 return V4L2_FIELD_NONE;
504 }
505
vivid_colorspace_cap(struct vivid_dev * dev)506 static unsigned vivid_colorspace_cap(struct vivid_dev *dev)
507 {
508 if (!dev->loop_video || vivid_is_webcam(dev) || vivid_is_tv_cap(dev))
509 return tpg_g_colorspace(&dev->tpg);
510 return dev->colorspace_out;
511 }
512
vivid_xfer_func_cap(struct vivid_dev * dev)513 static unsigned vivid_xfer_func_cap(struct vivid_dev *dev)
514 {
515 if (!dev->loop_video || vivid_is_webcam(dev) || vivid_is_tv_cap(dev))
516 return tpg_g_xfer_func(&dev->tpg);
517 return dev->xfer_func_out;
518 }
519
vivid_ycbcr_enc_cap(struct vivid_dev * dev)520 static unsigned vivid_ycbcr_enc_cap(struct vivid_dev *dev)
521 {
522 if (!dev->loop_video || vivid_is_webcam(dev) || vivid_is_tv_cap(dev))
523 return tpg_g_ycbcr_enc(&dev->tpg);
524 return dev->ycbcr_enc_out;
525 }
526
vivid_hsv_enc_cap(struct vivid_dev * dev)527 static unsigned int vivid_hsv_enc_cap(struct vivid_dev *dev)
528 {
529 if (!dev->loop_video || vivid_is_webcam(dev) || vivid_is_tv_cap(dev))
530 return tpg_g_hsv_enc(&dev->tpg);
531 return dev->hsv_enc_out;
532 }
533
vivid_quantization_cap(struct vivid_dev * dev)534 static unsigned vivid_quantization_cap(struct vivid_dev *dev)
535 {
536 if (!dev->loop_video || vivid_is_webcam(dev) || vivid_is_tv_cap(dev))
537 return tpg_g_quantization(&dev->tpg);
538 return dev->quantization_out;
539 }
540
vivid_g_fmt_vid_cap(struct file * file,void * priv,struct v4l2_format * f)541 int vivid_g_fmt_vid_cap(struct file *file, void *priv,
542 struct v4l2_format *f)
543 {
544 struct vivid_dev *dev = video_drvdata(file);
545 struct v4l2_pix_format_mplane *mp = &f->fmt.pix_mp;
546 unsigned p;
547
548 mp->width = dev->fmt_cap_rect.width;
549 mp->height = dev->fmt_cap_rect.height;
550 mp->field = dev->field_cap;
551 mp->pixelformat = dev->fmt_cap->fourcc;
552 mp->colorspace = vivid_colorspace_cap(dev);
553 mp->xfer_func = vivid_xfer_func_cap(dev);
554 if (dev->fmt_cap->color_enc == TGP_COLOR_ENC_HSV)
555 mp->hsv_enc = vivid_hsv_enc_cap(dev);
556 else
557 mp->ycbcr_enc = vivid_ycbcr_enc_cap(dev);
558 mp->quantization = vivid_quantization_cap(dev);
559 mp->num_planes = dev->fmt_cap->buffers;
560 for (p = 0; p < mp->num_planes; p++) {
561 mp->plane_fmt[p].bytesperline = tpg_g_bytesperline(&dev->tpg, p);
562 mp->plane_fmt[p].sizeimage =
563 (tpg_g_line_width(&dev->tpg, p) * mp->height) /
564 dev->fmt_cap->vdownsampling[p] +
565 dev->fmt_cap->data_offset[p];
566 }
567 return 0;
568 }
569
vivid_try_fmt_vid_cap(struct file * file,void * priv,struct v4l2_format * f)570 int vivid_try_fmt_vid_cap(struct file *file, void *priv,
571 struct v4l2_format *f)
572 {
573 struct v4l2_pix_format_mplane *mp = &f->fmt.pix_mp;
574 struct v4l2_plane_pix_format *pfmt = mp->plane_fmt;
575 struct vivid_dev *dev = video_drvdata(file);
576 const struct vivid_fmt *fmt;
577 unsigned bytesperline, max_bpl;
578 unsigned factor = 1;
579 unsigned w, h;
580 unsigned p;
581 bool user_set_csc = !!(mp->flags & V4L2_PIX_FMT_FLAG_SET_CSC);
582
583 fmt = vivid_get_format(dev, mp->pixelformat);
584 if (!fmt) {
585 dprintk(dev, 1, "Fourcc format (0x%08x) unknown.\n",
586 mp->pixelformat);
587 mp->pixelformat = V4L2_PIX_FMT_YUYV;
588 fmt = vivid_get_format(dev, mp->pixelformat);
589 }
590
591 mp->field = vivid_field_cap(dev, mp->field);
592 if (vivid_is_webcam(dev)) {
593 const struct v4l2_frmsize_discrete *sz =
594 v4l2_find_nearest_size(webcam_sizes,
595 VIVID_WEBCAM_SIZES, width,
596 height, mp->width, mp->height);
597
598 w = sz->width;
599 h = sz->height;
600 } else if (vivid_is_sdtv_cap(dev)) {
601 w = 720;
602 h = (dev->std_cap[dev->input] & V4L2_STD_525_60) ? 480 : 576;
603 } else {
604 w = dev->src_rect.width;
605 h = dev->src_rect.height;
606 }
607 if (V4L2_FIELD_HAS_T_OR_B(mp->field))
608 factor = 2;
609 if (vivid_is_webcam(dev) ||
610 (!dev->has_scaler_cap && !dev->has_crop_cap && !dev->has_compose_cap)) {
611 mp->width = w;
612 mp->height = h / factor;
613 } else {
614 struct v4l2_rect r = { 0, 0, mp->width, mp->height * factor };
615
616 v4l2_rect_set_min_size(&r, &vivid_min_rect);
617 v4l2_rect_set_max_size(&r, &vivid_max_rect);
618 if (dev->has_scaler_cap && !dev->has_compose_cap) {
619 struct v4l2_rect max_r = { 0, 0, MAX_ZOOM * w, MAX_ZOOM * h };
620
621 v4l2_rect_set_max_size(&r, &max_r);
622 } else if (!dev->has_scaler_cap && dev->has_crop_cap && !dev->has_compose_cap) {
623 v4l2_rect_set_max_size(&r, &dev->src_rect);
624 } else if (!dev->has_scaler_cap && !dev->has_crop_cap) {
625 v4l2_rect_set_min_size(&r, &dev->src_rect);
626 }
627 mp->width = r.width;
628 mp->height = r.height / factor;
629 }
630
631 /* This driver supports custom bytesperline values */
632
633 mp->num_planes = fmt->buffers;
634 for (p = 0; p < fmt->buffers; p++) {
635 /* Calculate the minimum supported bytesperline value */
636 bytesperline = (mp->width * fmt->bit_depth[p]) >> 3;
637 /* Calculate the maximum supported bytesperline value */
638 max_bpl = (MAX_ZOOM * MAX_WIDTH * fmt->bit_depth[p]) >> 3;
639
640 if (pfmt[p].bytesperline > max_bpl)
641 pfmt[p].bytesperline = max_bpl;
642 if (pfmt[p].bytesperline < bytesperline)
643 pfmt[p].bytesperline = bytesperline;
644
645 pfmt[p].sizeimage = (pfmt[p].bytesperline * mp->height) /
646 fmt->vdownsampling[p] + fmt->data_offset[p];
647
648 memset(pfmt[p].reserved, 0, sizeof(pfmt[p].reserved));
649 }
650 for (p = fmt->buffers; p < fmt->planes; p++)
651 pfmt[0].sizeimage += (pfmt[0].bytesperline * mp->height *
652 (fmt->bit_depth[p] / fmt->vdownsampling[p])) /
653 (fmt->bit_depth[0] / fmt->vdownsampling[0]);
654
655 if (!user_set_csc || !v4l2_is_colorspace_valid(mp->colorspace))
656 mp->colorspace = vivid_colorspace_cap(dev);
657
658 if (!user_set_csc || !v4l2_is_xfer_func_valid(mp->xfer_func))
659 mp->xfer_func = vivid_xfer_func_cap(dev);
660
661 if (fmt->color_enc == TGP_COLOR_ENC_HSV) {
662 if (!user_set_csc || !v4l2_is_hsv_enc_valid(mp->hsv_enc))
663 mp->hsv_enc = vivid_hsv_enc_cap(dev);
664 } else if (fmt->color_enc == TGP_COLOR_ENC_YCBCR) {
665 if (!user_set_csc || !v4l2_is_ycbcr_enc_valid(mp->ycbcr_enc))
666 mp->ycbcr_enc = vivid_ycbcr_enc_cap(dev);
667 } else {
668 mp->ycbcr_enc = vivid_ycbcr_enc_cap(dev);
669 }
670
671 if (fmt->color_enc == TGP_COLOR_ENC_YCBCR ||
672 fmt->color_enc == TGP_COLOR_ENC_RGB) {
673 if (!user_set_csc || !v4l2_is_quant_valid(mp->quantization))
674 mp->quantization = vivid_quantization_cap(dev);
675 } else {
676 mp->quantization = vivid_quantization_cap(dev);
677 }
678
679 memset(mp->reserved, 0, sizeof(mp->reserved));
680 return 0;
681 }
682
vivid_s_fmt_vid_cap(struct file * file,void * priv,struct v4l2_format * f)683 int vivid_s_fmt_vid_cap(struct file *file, void *priv,
684 struct v4l2_format *f)
685 {
686 struct v4l2_pix_format_mplane *mp = &f->fmt.pix_mp;
687 struct vivid_dev *dev = video_drvdata(file);
688 struct v4l2_rect *crop = &dev->crop_cap;
689 struct v4l2_rect *compose = &dev->compose_cap;
690 struct vb2_queue *q = &dev->vb_vid_cap_q;
691 int ret = vivid_try_fmt_vid_cap(file, priv, f);
692 unsigned factor = 1;
693 unsigned p;
694 unsigned i;
695
696 if (ret < 0)
697 return ret;
698
699 if (vb2_is_busy(q)) {
700 dprintk(dev, 1, "%s device busy\n", __func__);
701 return -EBUSY;
702 }
703
704 if (dev->overlay_cap_owner && dev->fb_cap.fmt.pixelformat != mp->pixelformat) {
705 dprintk(dev, 1, "overlay is active, can't change pixelformat\n");
706 return -EBUSY;
707 }
708
709 dev->fmt_cap = vivid_get_format(dev, mp->pixelformat);
710 if (V4L2_FIELD_HAS_T_OR_B(mp->field))
711 factor = 2;
712
713 /* Note: the webcam input doesn't support scaling, cropping or composing */
714
715 if (!vivid_is_webcam(dev) &&
716 (dev->has_scaler_cap || dev->has_crop_cap || dev->has_compose_cap)) {
717 struct v4l2_rect r = { 0, 0, mp->width, mp->height };
718
719 if (dev->has_scaler_cap) {
720 if (dev->has_compose_cap)
721 v4l2_rect_map_inside(compose, &r);
722 else
723 *compose = r;
724 if (dev->has_crop_cap && !dev->has_compose_cap) {
725 struct v4l2_rect min_r = {
726 0, 0,
727 r.width / MAX_ZOOM,
728 factor * r.height / MAX_ZOOM
729 };
730 struct v4l2_rect max_r = {
731 0, 0,
732 r.width * MAX_ZOOM,
733 factor * r.height * MAX_ZOOM
734 };
735
736 v4l2_rect_set_min_size(crop, &min_r);
737 v4l2_rect_set_max_size(crop, &max_r);
738 v4l2_rect_map_inside(crop, &dev->crop_bounds_cap);
739 } else if (dev->has_crop_cap) {
740 struct v4l2_rect min_r = {
741 0, 0,
742 compose->width / MAX_ZOOM,
743 factor * compose->height / MAX_ZOOM
744 };
745 struct v4l2_rect max_r = {
746 0, 0,
747 compose->width * MAX_ZOOM,
748 factor * compose->height * MAX_ZOOM
749 };
750
751 v4l2_rect_set_min_size(crop, &min_r);
752 v4l2_rect_set_max_size(crop, &max_r);
753 v4l2_rect_map_inside(crop, &dev->crop_bounds_cap);
754 }
755 } else if (dev->has_crop_cap && !dev->has_compose_cap) {
756 r.height *= factor;
757 v4l2_rect_set_size_to(crop, &r);
758 v4l2_rect_map_inside(crop, &dev->crop_bounds_cap);
759 r = *crop;
760 r.height /= factor;
761 v4l2_rect_set_size_to(compose, &r);
762 } else if (!dev->has_crop_cap) {
763 v4l2_rect_map_inside(compose, &r);
764 } else {
765 r.height *= factor;
766 v4l2_rect_set_max_size(crop, &r);
767 v4l2_rect_map_inside(crop, &dev->crop_bounds_cap);
768 compose->top *= factor;
769 compose->height *= factor;
770 v4l2_rect_set_size_to(compose, crop);
771 v4l2_rect_map_inside(compose, &r);
772 compose->top /= factor;
773 compose->height /= factor;
774 }
775 } else if (vivid_is_webcam(dev)) {
776 /* Guaranteed to be a match */
777 for (i = 0; i < ARRAY_SIZE(webcam_sizes); i++)
778 if (webcam_sizes[i].width == mp->width &&
779 webcam_sizes[i].height == mp->height)
780 break;
781 dev->webcam_size_idx = i;
782 if (dev->webcam_ival_idx >= 2 * (VIVID_WEBCAM_SIZES - i))
783 dev->webcam_ival_idx = 2 * (VIVID_WEBCAM_SIZES - i) - 1;
784 vivid_update_format_cap(dev, false);
785 } else {
786 struct v4l2_rect r = { 0, 0, mp->width, mp->height };
787
788 v4l2_rect_set_size_to(compose, &r);
789 r.height *= factor;
790 v4l2_rect_set_size_to(crop, &r);
791 }
792
793 dev->fmt_cap_rect.width = mp->width;
794 dev->fmt_cap_rect.height = mp->height;
795 tpg_s_buf_height(&dev->tpg, mp->height);
796 tpg_s_fourcc(&dev->tpg, dev->fmt_cap->fourcc);
797 for (p = 0; p < tpg_g_buffers(&dev->tpg); p++)
798 tpg_s_bytesperline(&dev->tpg, p, mp->plane_fmt[p].bytesperline);
799 dev->field_cap = mp->field;
800 if (dev->field_cap == V4L2_FIELD_ALTERNATE)
801 tpg_s_field(&dev->tpg, V4L2_FIELD_TOP, true);
802 else
803 tpg_s_field(&dev->tpg, dev->field_cap, false);
804 tpg_s_crop_compose(&dev->tpg, &dev->crop_cap, &dev->compose_cap);
805 if (vivid_is_sdtv_cap(dev))
806 dev->tv_field_cap = mp->field;
807 tpg_update_mv_step(&dev->tpg);
808 dev->tpg.colorspace = mp->colorspace;
809 dev->tpg.xfer_func = mp->xfer_func;
810 if (dev->fmt_cap->color_enc == TGP_COLOR_ENC_YCBCR)
811 dev->tpg.ycbcr_enc = mp->ycbcr_enc;
812 else
813 dev->tpg.hsv_enc = mp->hsv_enc;
814 dev->tpg.quantization = mp->quantization;
815
816 return 0;
817 }
818
vidioc_g_fmt_vid_cap_mplane(struct file * file,void * priv,struct v4l2_format * f)819 int vidioc_g_fmt_vid_cap_mplane(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 vivid_g_fmt_vid_cap(file, priv, f);
827 }
828
vidioc_try_fmt_vid_cap_mplane(struct file * file,void * priv,struct v4l2_format * f)829 int vidioc_try_fmt_vid_cap_mplane(struct file *file, void *priv,
830 struct v4l2_format *f)
831 {
832 struct vivid_dev *dev = video_drvdata(file);
833
834 if (!dev->multiplanar)
835 return -ENOTTY;
836 return vivid_try_fmt_vid_cap(file, priv, f);
837 }
838
vidioc_s_fmt_vid_cap_mplane(struct file * file,void * priv,struct v4l2_format * f)839 int vidioc_s_fmt_vid_cap_mplane(struct file *file, void *priv,
840 struct v4l2_format *f)
841 {
842 struct vivid_dev *dev = video_drvdata(file);
843
844 if (!dev->multiplanar)
845 return -ENOTTY;
846 return vivid_s_fmt_vid_cap(file, priv, f);
847 }
848
vidioc_g_fmt_vid_cap(struct file * file,void * priv,struct v4l2_format * f)849 int vidioc_g_fmt_vid_cap(struct file *file, void *priv,
850 struct v4l2_format *f)
851 {
852 struct vivid_dev *dev = video_drvdata(file);
853
854 if (dev->multiplanar)
855 return -ENOTTY;
856 return fmt_sp2mp_func(file, priv, f, vivid_g_fmt_vid_cap);
857 }
858
vidioc_try_fmt_vid_cap(struct file * file,void * priv,struct v4l2_format * f)859 int vidioc_try_fmt_vid_cap(struct file *file, void *priv,
860 struct v4l2_format *f)
861 {
862 struct vivid_dev *dev = video_drvdata(file);
863
864 if (dev->multiplanar)
865 return -ENOTTY;
866 return fmt_sp2mp_func(file, priv, f, vivid_try_fmt_vid_cap);
867 }
868
vidioc_s_fmt_vid_cap(struct file * file,void * priv,struct v4l2_format * f)869 int vidioc_s_fmt_vid_cap(struct file *file, void *priv,
870 struct v4l2_format *f)
871 {
872 struct vivid_dev *dev = video_drvdata(file);
873
874 if (dev->multiplanar)
875 return -ENOTTY;
876 return fmt_sp2mp_func(file, priv, f, vivid_s_fmt_vid_cap);
877 }
878
vivid_vid_cap_g_selection(struct file * file,void * priv,struct v4l2_selection * sel)879 int vivid_vid_cap_g_selection(struct file *file, void *priv,
880 struct v4l2_selection *sel)
881 {
882 struct vivid_dev *dev = video_drvdata(file);
883
884 if (!dev->has_crop_cap && !dev->has_compose_cap)
885 return -ENOTTY;
886 if (sel->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
887 return -EINVAL;
888 if (vivid_is_webcam(dev))
889 return -ENODATA;
890
891 sel->r.left = sel->r.top = 0;
892 switch (sel->target) {
893 case V4L2_SEL_TGT_CROP:
894 if (!dev->has_crop_cap)
895 return -EINVAL;
896 sel->r = dev->crop_cap;
897 break;
898 case V4L2_SEL_TGT_CROP_DEFAULT:
899 case V4L2_SEL_TGT_CROP_BOUNDS:
900 if (!dev->has_crop_cap)
901 return -EINVAL;
902 sel->r = dev->src_rect;
903 break;
904 case V4L2_SEL_TGT_COMPOSE_BOUNDS:
905 if (!dev->has_compose_cap)
906 return -EINVAL;
907 sel->r = vivid_max_rect;
908 break;
909 case V4L2_SEL_TGT_COMPOSE:
910 if (!dev->has_compose_cap)
911 return -EINVAL;
912 sel->r = dev->compose_cap;
913 break;
914 case V4L2_SEL_TGT_COMPOSE_DEFAULT:
915 if (!dev->has_compose_cap)
916 return -EINVAL;
917 sel->r = dev->fmt_cap_rect;
918 break;
919 default:
920 return -EINVAL;
921 }
922 return 0;
923 }
924
vivid_vid_cap_s_selection(struct file * file,void * fh,struct v4l2_selection * s)925 int vivid_vid_cap_s_selection(struct file *file, void *fh, struct v4l2_selection *s)
926 {
927 struct vivid_dev *dev = video_drvdata(file);
928 struct v4l2_rect *crop = &dev->crop_cap;
929 struct v4l2_rect *compose = &dev->compose_cap;
930 unsigned orig_compose_w = compose->width;
931 unsigned orig_compose_h = compose->height;
932 unsigned factor = V4L2_FIELD_HAS_T_OR_B(dev->field_cap) ? 2 : 1;
933 int ret;
934
935 if (!dev->has_crop_cap && !dev->has_compose_cap)
936 return -ENOTTY;
937 if (s->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
938 return -EINVAL;
939 if (vivid_is_webcam(dev))
940 return -ENODATA;
941
942 switch (s->target) {
943 case V4L2_SEL_TGT_CROP:
944 if (!dev->has_crop_cap)
945 return -EINVAL;
946 ret = vivid_vid_adjust_sel(s->flags, &s->r);
947 if (ret)
948 return ret;
949 v4l2_rect_set_min_size(&s->r, &vivid_min_rect);
950 v4l2_rect_set_max_size(&s->r, &dev->src_rect);
951 v4l2_rect_map_inside(&s->r, &dev->crop_bounds_cap);
952 s->r.top /= factor;
953 s->r.height /= factor;
954 if (dev->has_scaler_cap) {
955 struct v4l2_rect fmt = dev->fmt_cap_rect;
956 struct v4l2_rect max_rect = {
957 0, 0,
958 s->r.width * MAX_ZOOM,
959 s->r.height * MAX_ZOOM
960 };
961 struct v4l2_rect min_rect = {
962 0, 0,
963 s->r.width / MAX_ZOOM,
964 s->r.height / MAX_ZOOM
965 };
966
967 v4l2_rect_set_min_size(&fmt, &min_rect);
968 if (!dev->has_compose_cap)
969 v4l2_rect_set_max_size(&fmt, &max_rect);
970 if (!v4l2_rect_same_size(&dev->fmt_cap_rect, &fmt) &&
971 vb2_is_busy(&dev->vb_vid_cap_q))
972 return -EBUSY;
973 if (dev->has_compose_cap) {
974 v4l2_rect_set_min_size(compose, &min_rect);
975 v4l2_rect_set_max_size(compose, &max_rect);
976 }
977 dev->fmt_cap_rect = fmt;
978 tpg_s_buf_height(&dev->tpg, fmt.height);
979 } else if (dev->has_compose_cap) {
980 struct v4l2_rect fmt = dev->fmt_cap_rect;
981
982 v4l2_rect_set_min_size(&fmt, &s->r);
983 if (!v4l2_rect_same_size(&dev->fmt_cap_rect, &fmt) &&
984 vb2_is_busy(&dev->vb_vid_cap_q))
985 return -EBUSY;
986 dev->fmt_cap_rect = fmt;
987 tpg_s_buf_height(&dev->tpg, fmt.height);
988 v4l2_rect_set_size_to(compose, &s->r);
989 v4l2_rect_map_inside(compose, &dev->fmt_cap_rect);
990 } else {
991 if (!v4l2_rect_same_size(&s->r, &dev->fmt_cap_rect) &&
992 vb2_is_busy(&dev->vb_vid_cap_q))
993 return -EBUSY;
994 v4l2_rect_set_size_to(&dev->fmt_cap_rect, &s->r);
995 v4l2_rect_set_size_to(compose, &s->r);
996 v4l2_rect_map_inside(compose, &dev->fmt_cap_rect);
997 tpg_s_buf_height(&dev->tpg, dev->fmt_cap_rect.height);
998 }
999 s->r.top *= factor;
1000 s->r.height *= factor;
1001 *crop = s->r;
1002 break;
1003 case V4L2_SEL_TGT_COMPOSE:
1004 if (!dev->has_compose_cap)
1005 return -EINVAL;
1006 ret = vivid_vid_adjust_sel(s->flags, &s->r);
1007 if (ret)
1008 return ret;
1009 v4l2_rect_set_min_size(&s->r, &vivid_min_rect);
1010 v4l2_rect_set_max_size(&s->r, &dev->fmt_cap_rect);
1011 if (dev->has_scaler_cap) {
1012 struct v4l2_rect max_rect = {
1013 0, 0,
1014 dev->src_rect.width * MAX_ZOOM,
1015 (dev->src_rect.height / factor) * MAX_ZOOM
1016 };
1017
1018 v4l2_rect_set_max_size(&s->r, &max_rect);
1019 if (dev->has_crop_cap) {
1020 struct v4l2_rect min_rect = {
1021 0, 0,
1022 s->r.width / MAX_ZOOM,
1023 (s->r.height * factor) / MAX_ZOOM
1024 };
1025 struct v4l2_rect max_rect = {
1026 0, 0,
1027 s->r.width * MAX_ZOOM,
1028 (s->r.height * factor) * MAX_ZOOM
1029 };
1030
1031 v4l2_rect_set_min_size(crop, &min_rect);
1032 v4l2_rect_set_max_size(crop, &max_rect);
1033 v4l2_rect_map_inside(crop, &dev->crop_bounds_cap);
1034 }
1035 } else if (dev->has_crop_cap) {
1036 s->r.top *= factor;
1037 s->r.height *= factor;
1038 v4l2_rect_set_max_size(&s->r, &dev->src_rect);
1039 v4l2_rect_set_size_to(crop, &s->r);
1040 v4l2_rect_map_inside(crop, &dev->crop_bounds_cap);
1041 s->r.top /= factor;
1042 s->r.height /= factor;
1043 } else {
1044 v4l2_rect_set_size_to(&s->r, &dev->src_rect);
1045 s->r.height /= factor;
1046 }
1047 v4l2_rect_map_inside(&s->r, &dev->fmt_cap_rect);
1048 *compose = s->r;
1049 break;
1050 default:
1051 return -EINVAL;
1052 }
1053
1054 if (dev->bitmap_cap && (compose->width != orig_compose_w ||
1055 compose->height != orig_compose_h)) {
1056 vfree(dev->bitmap_cap);
1057 dev->bitmap_cap = NULL;
1058 }
1059 tpg_s_crop_compose(&dev->tpg, crop, compose);
1060 return 0;
1061 }
1062
vivid_vid_cap_g_pixelaspect(struct file * file,void * priv,int type,struct v4l2_fract * f)1063 int vivid_vid_cap_g_pixelaspect(struct file *file, void *priv,
1064 int type, struct v4l2_fract *f)
1065 {
1066 struct vivid_dev *dev = video_drvdata(file);
1067
1068 if (type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
1069 return -EINVAL;
1070
1071 switch (vivid_get_pixel_aspect(dev)) {
1072 case TPG_PIXEL_ASPECT_NTSC:
1073 f->numerator = 11;
1074 f->denominator = 10;
1075 break;
1076 case TPG_PIXEL_ASPECT_PAL:
1077 f->numerator = 54;
1078 f->denominator = 59;
1079 break;
1080 default:
1081 break;
1082 }
1083 return 0;
1084 }
1085
vidioc_enum_fmt_vid_overlay(struct file * file,void * priv,struct v4l2_fmtdesc * f)1086 int vidioc_enum_fmt_vid_overlay(struct file *file, void *priv,
1087 struct v4l2_fmtdesc *f)
1088 {
1089 struct vivid_dev *dev = video_drvdata(file);
1090 const struct vivid_fmt *fmt;
1091
1092 if (dev->multiplanar)
1093 return -ENOTTY;
1094
1095 if (f->index >= ARRAY_SIZE(formats_ovl))
1096 return -EINVAL;
1097
1098 fmt = &formats_ovl[f->index];
1099
1100 f->pixelformat = fmt->fourcc;
1101 return 0;
1102 }
1103
vidioc_g_fmt_vid_overlay(struct file * file,void * priv,struct v4l2_format * f)1104 int vidioc_g_fmt_vid_overlay(struct file *file, void *priv,
1105 struct v4l2_format *f)
1106 {
1107 struct vivid_dev *dev = video_drvdata(file);
1108 const struct v4l2_rect *compose = &dev->compose_cap;
1109 struct v4l2_window *win = &f->fmt.win;
1110 unsigned clipcount = win->clipcount;
1111
1112 if (dev->multiplanar)
1113 return -ENOTTY;
1114
1115 win->w.top = dev->overlay_cap_top;
1116 win->w.left = dev->overlay_cap_left;
1117 win->w.width = compose->width;
1118 win->w.height = compose->height;
1119 win->field = dev->overlay_cap_field;
1120 win->clipcount = dev->clipcount_cap;
1121 if (clipcount > dev->clipcount_cap)
1122 clipcount = dev->clipcount_cap;
1123 if (dev->bitmap_cap == NULL)
1124 win->bitmap = NULL;
1125 else if (win->bitmap) {
1126 if (copy_to_user(win->bitmap, dev->bitmap_cap,
1127 ((compose->width + 7) / 8) * compose->height))
1128 return -EFAULT;
1129 }
1130 if (clipcount && win->clips)
1131 memcpy(win->clips, dev->clips_cap,
1132 clipcount * sizeof(dev->clips_cap[0]));
1133 return 0;
1134 }
1135
vidioc_try_fmt_vid_overlay(struct file * file,void * priv,struct v4l2_format * f)1136 int vidioc_try_fmt_vid_overlay(struct file *file, void *priv,
1137 struct v4l2_format *f)
1138 {
1139 struct vivid_dev *dev = video_drvdata(file);
1140 const struct v4l2_rect *compose = &dev->compose_cap;
1141 struct v4l2_window *win = &f->fmt.win;
1142 int i, j;
1143
1144 if (dev->multiplanar)
1145 return -ENOTTY;
1146
1147 win->w.left = clamp_t(int, win->w.left,
1148 -dev->fb_cap.fmt.width, dev->fb_cap.fmt.width);
1149 win->w.top = clamp_t(int, win->w.top,
1150 -dev->fb_cap.fmt.height, dev->fb_cap.fmt.height);
1151 win->w.width = compose->width;
1152 win->w.height = compose->height;
1153 if (win->field != V4L2_FIELD_BOTTOM && win->field != V4L2_FIELD_TOP)
1154 win->field = V4L2_FIELD_ANY;
1155 win->chromakey = 0;
1156 win->global_alpha = 0;
1157 if (win->clipcount && !win->clips)
1158 win->clipcount = 0;
1159 if (win->clipcount > MAX_CLIPS)
1160 win->clipcount = MAX_CLIPS;
1161 if (win->clipcount) {
1162 memcpy(dev->try_clips_cap, win->clips,
1163 win->clipcount * sizeof(dev->clips_cap[0]));
1164 for (i = 0; i < win->clipcount; i++) {
1165 struct v4l2_rect *r = &dev->try_clips_cap[i].c;
1166
1167 r->top = clamp_t(s32, r->top, 0, dev->fb_cap.fmt.height - 1);
1168 r->height = clamp_t(s32, r->height, 1, dev->fb_cap.fmt.height - r->top);
1169 r->left = clamp_t(u32, r->left, 0, dev->fb_cap.fmt.width - 1);
1170 r->width = clamp_t(u32, r->width, 1, dev->fb_cap.fmt.width - r->left);
1171 }
1172 /*
1173 * Yeah, so sue me, it's an O(n^2) algorithm. But n is a small
1174 * number and it's typically a one-time deal.
1175 */
1176 for (i = 0; i < win->clipcount - 1; i++) {
1177 struct v4l2_rect *r1 = &dev->try_clips_cap[i].c;
1178
1179 for (j = i + 1; j < win->clipcount; j++) {
1180 struct v4l2_rect *r2 = &dev->try_clips_cap[j].c;
1181
1182 if (v4l2_rect_overlap(r1, r2))
1183 return -EINVAL;
1184 }
1185 }
1186 memcpy(win->clips, dev->try_clips_cap,
1187 win->clipcount * sizeof(dev->clips_cap[0]));
1188 }
1189 return 0;
1190 }
1191
vidioc_s_fmt_vid_overlay(struct file * file,void * priv,struct v4l2_format * f)1192 int vidioc_s_fmt_vid_overlay(struct file *file, void *priv,
1193 struct v4l2_format *f)
1194 {
1195 struct vivid_dev *dev = video_drvdata(file);
1196 const struct v4l2_rect *compose = &dev->compose_cap;
1197 struct v4l2_window *win = &f->fmt.win;
1198 int ret = vidioc_try_fmt_vid_overlay(file, priv, f);
1199 unsigned bitmap_size = ((compose->width + 7) / 8) * compose->height;
1200 unsigned clips_size = win->clipcount * sizeof(dev->clips_cap[0]);
1201 void *new_bitmap = NULL;
1202
1203 if (ret)
1204 return ret;
1205
1206 if (win->bitmap) {
1207 new_bitmap = vzalloc(bitmap_size);
1208
1209 if (new_bitmap == NULL)
1210 return -ENOMEM;
1211 if (copy_from_user(new_bitmap, win->bitmap, bitmap_size)) {
1212 vfree(new_bitmap);
1213 return -EFAULT;
1214 }
1215 }
1216
1217 dev->overlay_cap_top = win->w.top;
1218 dev->overlay_cap_left = win->w.left;
1219 dev->overlay_cap_field = win->field;
1220 vfree(dev->bitmap_cap);
1221 dev->bitmap_cap = new_bitmap;
1222 dev->clipcount_cap = win->clipcount;
1223 if (dev->clipcount_cap)
1224 memcpy(dev->clips_cap, dev->try_clips_cap, clips_size);
1225 return 0;
1226 }
1227
vivid_vid_cap_overlay(struct file * file,void * fh,unsigned i)1228 int vivid_vid_cap_overlay(struct file *file, void *fh, unsigned i)
1229 {
1230 struct vivid_dev *dev = video_drvdata(file);
1231
1232 if (dev->multiplanar)
1233 return -ENOTTY;
1234
1235 if (i && dev->fb_vbase_cap == NULL)
1236 return -EINVAL;
1237
1238 if (i && dev->fb_cap.fmt.pixelformat != dev->fmt_cap->fourcc) {
1239 dprintk(dev, 1, "mismatch between overlay and video capture pixelformats\n");
1240 return -EINVAL;
1241 }
1242
1243 if (dev->overlay_cap_owner && dev->overlay_cap_owner != fh)
1244 return -EBUSY;
1245 dev->overlay_cap_owner = i ? fh : NULL;
1246 return 0;
1247 }
1248
vivid_vid_cap_g_fbuf(struct file * file,void * fh,struct v4l2_framebuffer * a)1249 int vivid_vid_cap_g_fbuf(struct file *file, void *fh,
1250 struct v4l2_framebuffer *a)
1251 {
1252 struct vivid_dev *dev = video_drvdata(file);
1253
1254 if (dev->multiplanar)
1255 return -ENOTTY;
1256
1257 *a = dev->fb_cap;
1258 a->capability = V4L2_FBUF_CAP_BITMAP_CLIPPING |
1259 V4L2_FBUF_CAP_LIST_CLIPPING;
1260 a->flags = V4L2_FBUF_FLAG_PRIMARY;
1261 a->fmt.field = V4L2_FIELD_NONE;
1262 a->fmt.colorspace = V4L2_COLORSPACE_SRGB;
1263 a->fmt.priv = 0;
1264 return 0;
1265 }
1266
vivid_vid_cap_s_fbuf(struct file * file,void * fh,const struct v4l2_framebuffer * a)1267 int vivid_vid_cap_s_fbuf(struct file *file, void *fh,
1268 const struct v4l2_framebuffer *a)
1269 {
1270 struct vivid_dev *dev = video_drvdata(file);
1271 const struct vivid_fmt *fmt;
1272
1273 if (dev->multiplanar)
1274 return -ENOTTY;
1275
1276 if (!capable(CAP_SYS_ADMIN) && !capable(CAP_SYS_RAWIO))
1277 return -EPERM;
1278
1279 if (dev->overlay_cap_owner)
1280 return -EBUSY;
1281
1282 if (a->base == NULL) {
1283 dev->fb_cap.base = NULL;
1284 dev->fb_vbase_cap = NULL;
1285 return 0;
1286 }
1287
1288 if (a->fmt.width < 48 || a->fmt.height < 32)
1289 return -EINVAL;
1290 fmt = vivid_get_format(dev, a->fmt.pixelformat);
1291 if (!fmt || !fmt->can_do_overlay)
1292 return -EINVAL;
1293 if (a->fmt.bytesperline < (a->fmt.width * fmt->bit_depth[0]) / 8)
1294 return -EINVAL;
1295 if (a->fmt.bytesperline > a->fmt.sizeimage / a->fmt.height)
1296 return -EINVAL;
1297
1298 /*
1299 * Only support the framebuffer of one of the vivid instances.
1300 * Anything else is rejected.
1301 */
1302 if (!vivid_validate_fb(a))
1303 return -EINVAL;
1304
1305 dev->fb_vbase_cap = phys_to_virt((unsigned long)a->base);
1306 dev->fb_cap = *a;
1307 dev->overlay_cap_left = clamp_t(int, dev->overlay_cap_left,
1308 -dev->fb_cap.fmt.width, dev->fb_cap.fmt.width);
1309 dev->overlay_cap_top = clamp_t(int, dev->overlay_cap_top,
1310 -dev->fb_cap.fmt.height, dev->fb_cap.fmt.height);
1311 return 0;
1312 }
1313
1314 static const struct v4l2_audio vivid_audio_inputs[] = {
1315 { 0, "TV", V4L2_AUDCAP_STEREO },
1316 { 1, "Line-In", V4L2_AUDCAP_STEREO },
1317 };
1318
vidioc_enum_input(struct file * file,void * priv,struct v4l2_input * inp)1319 int vidioc_enum_input(struct file *file, void *priv,
1320 struct v4l2_input *inp)
1321 {
1322 struct vivid_dev *dev = video_drvdata(file);
1323
1324 if (inp->index >= dev->num_inputs)
1325 return -EINVAL;
1326
1327 inp->type = V4L2_INPUT_TYPE_CAMERA;
1328 switch (dev->input_type[inp->index]) {
1329 case WEBCAM:
1330 snprintf(inp->name, sizeof(inp->name), "Webcam %u",
1331 dev->input_name_counter[inp->index]);
1332 inp->capabilities = 0;
1333 break;
1334 case TV:
1335 snprintf(inp->name, sizeof(inp->name), "TV %u",
1336 dev->input_name_counter[inp->index]);
1337 inp->type = V4L2_INPUT_TYPE_TUNER;
1338 inp->std = V4L2_STD_ALL;
1339 if (dev->has_audio_inputs)
1340 inp->audioset = (1 << ARRAY_SIZE(vivid_audio_inputs)) - 1;
1341 inp->capabilities = V4L2_IN_CAP_STD;
1342 break;
1343 case SVID:
1344 snprintf(inp->name, sizeof(inp->name), "S-Video %u",
1345 dev->input_name_counter[inp->index]);
1346 inp->std = V4L2_STD_ALL;
1347 if (dev->has_audio_inputs)
1348 inp->audioset = (1 << ARRAY_SIZE(vivid_audio_inputs)) - 1;
1349 inp->capabilities = V4L2_IN_CAP_STD;
1350 break;
1351 case HDMI:
1352 snprintf(inp->name, sizeof(inp->name), "HDMI %u",
1353 dev->input_name_counter[inp->index]);
1354 inp->capabilities = V4L2_IN_CAP_DV_TIMINGS;
1355 if (dev->edid_blocks == 0 ||
1356 dev->dv_timings_signal_mode[dev->input] == NO_SIGNAL)
1357 inp->status |= V4L2_IN_ST_NO_SIGNAL;
1358 else if (dev->dv_timings_signal_mode[dev->input] == NO_LOCK ||
1359 dev->dv_timings_signal_mode[dev->input] == OUT_OF_RANGE)
1360 inp->status |= V4L2_IN_ST_NO_H_LOCK;
1361 break;
1362 }
1363 if (dev->sensor_hflip)
1364 inp->status |= V4L2_IN_ST_HFLIP;
1365 if (dev->sensor_vflip)
1366 inp->status |= V4L2_IN_ST_VFLIP;
1367 if (dev->input == inp->index && vivid_is_sdtv_cap(dev)) {
1368 if (dev->std_signal_mode[dev->input] == NO_SIGNAL) {
1369 inp->status |= V4L2_IN_ST_NO_SIGNAL;
1370 } else if (dev->std_signal_mode[dev->input] == NO_LOCK) {
1371 inp->status |= V4L2_IN_ST_NO_H_LOCK;
1372 } else if (vivid_is_tv_cap(dev)) {
1373 switch (tpg_g_quality(&dev->tpg)) {
1374 case TPG_QUAL_GRAY:
1375 inp->status |= V4L2_IN_ST_COLOR_KILL;
1376 break;
1377 case TPG_QUAL_NOISE:
1378 inp->status |= V4L2_IN_ST_NO_H_LOCK;
1379 break;
1380 default:
1381 break;
1382 }
1383 }
1384 }
1385 return 0;
1386 }
1387
vidioc_g_input(struct file * file,void * priv,unsigned * i)1388 int vidioc_g_input(struct file *file, void *priv, unsigned *i)
1389 {
1390 struct vivid_dev *dev = video_drvdata(file);
1391
1392 *i = dev->input;
1393 return 0;
1394 }
1395
vidioc_s_input(struct file * file,void * priv,unsigned i)1396 int vidioc_s_input(struct file *file, void *priv, unsigned i)
1397 {
1398 struct vivid_dev *dev = video_drvdata(file);
1399 struct v4l2_bt_timings *bt = &dev->dv_timings_cap[dev->input].bt;
1400 unsigned brightness;
1401
1402 if (i >= dev->num_inputs)
1403 return -EINVAL;
1404
1405 if (i == dev->input)
1406 return 0;
1407
1408 if (vb2_is_busy(&dev->vb_vid_cap_q) ||
1409 vb2_is_busy(&dev->vb_vbi_cap_q) ||
1410 vb2_is_busy(&dev->vb_meta_cap_q))
1411 return -EBUSY;
1412
1413 dev->input = i;
1414 dev->vid_cap_dev.tvnorms = 0;
1415 if (dev->input_type[i] == TV || dev->input_type[i] == SVID) {
1416 dev->tv_audio_input = (dev->input_type[i] == TV) ? 0 : 1;
1417 dev->vid_cap_dev.tvnorms = V4L2_STD_ALL;
1418 }
1419 dev->vbi_cap_dev.tvnorms = dev->vid_cap_dev.tvnorms;
1420 dev->meta_cap_dev.tvnorms = dev->vid_cap_dev.tvnorms;
1421 vivid_update_format_cap(dev, false);
1422
1423 if (dev->colorspace) {
1424 switch (dev->input_type[i]) {
1425 case WEBCAM:
1426 v4l2_ctrl_s_ctrl(dev->colorspace, VIVID_CS_SRGB);
1427 break;
1428 case TV:
1429 case SVID:
1430 v4l2_ctrl_s_ctrl(dev->colorspace, VIVID_CS_170M);
1431 break;
1432 case HDMI:
1433 if (bt->flags & V4L2_DV_FL_IS_CE_VIDEO) {
1434 if (dev->src_rect.width == 720 && dev->src_rect.height <= 576)
1435 v4l2_ctrl_s_ctrl(dev->colorspace, VIVID_CS_170M);
1436 else
1437 v4l2_ctrl_s_ctrl(dev->colorspace, VIVID_CS_709);
1438 } else {
1439 v4l2_ctrl_s_ctrl(dev->colorspace, VIVID_CS_SRGB);
1440 }
1441 break;
1442 }
1443 }
1444
1445 /*
1446 * Modify the brightness range depending on the input.
1447 * This makes it easy to use vivid to test if applications can
1448 * handle control range modifications and is also how this is
1449 * typically used in practice as different inputs may be hooked
1450 * up to different receivers with different control ranges.
1451 */
1452 brightness = 128 * i + dev->input_brightness[i];
1453 v4l2_ctrl_modify_range(dev->brightness,
1454 128 * i, 255 + 128 * i, 1, 128 + 128 * i);
1455 v4l2_ctrl_s_ctrl(dev->brightness, brightness);
1456
1457 /* Restore per-input states. */
1458 v4l2_ctrl_activate(dev->ctrl_dv_timings_signal_mode,
1459 vivid_is_hdmi_cap(dev));
1460 v4l2_ctrl_activate(dev->ctrl_dv_timings, vivid_is_hdmi_cap(dev) &&
1461 dev->dv_timings_signal_mode[dev->input] ==
1462 SELECTED_DV_TIMINGS);
1463 v4l2_ctrl_activate(dev->ctrl_std_signal_mode, vivid_is_sdtv_cap(dev));
1464 v4l2_ctrl_activate(dev->ctrl_standard, vivid_is_sdtv_cap(dev) &&
1465 dev->std_signal_mode[dev->input]);
1466
1467 if (vivid_is_hdmi_cap(dev)) {
1468 v4l2_ctrl_s_ctrl(dev->ctrl_dv_timings_signal_mode,
1469 dev->dv_timings_signal_mode[dev->input]);
1470 v4l2_ctrl_s_ctrl(dev->ctrl_dv_timings,
1471 dev->query_dv_timings[dev->input]);
1472 } else if (vivid_is_sdtv_cap(dev)) {
1473 v4l2_ctrl_s_ctrl(dev->ctrl_std_signal_mode,
1474 dev->std_signal_mode[dev->input]);
1475 v4l2_ctrl_s_ctrl(dev->ctrl_standard,
1476 dev->std_signal_mode[dev->input]);
1477 }
1478
1479 return 0;
1480 }
1481
vidioc_enumaudio(struct file * file,void * fh,struct v4l2_audio * vin)1482 int vidioc_enumaudio(struct file *file, void *fh, struct v4l2_audio *vin)
1483 {
1484 if (vin->index >= ARRAY_SIZE(vivid_audio_inputs))
1485 return -EINVAL;
1486 *vin = vivid_audio_inputs[vin->index];
1487 return 0;
1488 }
1489
vidioc_g_audio(struct file * file,void * fh,struct v4l2_audio * vin)1490 int vidioc_g_audio(struct file *file, void *fh, struct v4l2_audio *vin)
1491 {
1492 struct vivid_dev *dev = video_drvdata(file);
1493
1494 if (!vivid_is_sdtv_cap(dev))
1495 return -EINVAL;
1496 *vin = vivid_audio_inputs[dev->tv_audio_input];
1497 return 0;
1498 }
1499
vidioc_s_audio(struct file * file,void * fh,const struct v4l2_audio * vin)1500 int vidioc_s_audio(struct file *file, void *fh, const struct v4l2_audio *vin)
1501 {
1502 struct vivid_dev *dev = video_drvdata(file);
1503
1504 if (!vivid_is_sdtv_cap(dev))
1505 return -EINVAL;
1506 if (vin->index >= ARRAY_SIZE(vivid_audio_inputs))
1507 return -EINVAL;
1508 dev->tv_audio_input = vin->index;
1509 return 0;
1510 }
1511
vivid_video_g_frequency(struct file * file,void * fh,struct v4l2_frequency * vf)1512 int vivid_video_g_frequency(struct file *file, void *fh, struct v4l2_frequency *vf)
1513 {
1514 struct vivid_dev *dev = video_drvdata(file);
1515
1516 if (vf->tuner != 0)
1517 return -EINVAL;
1518 vf->frequency = dev->tv_freq;
1519 return 0;
1520 }
1521
vivid_video_s_frequency(struct file * file,void * fh,const struct v4l2_frequency * vf)1522 int vivid_video_s_frequency(struct file *file, void *fh, const struct v4l2_frequency *vf)
1523 {
1524 struct vivid_dev *dev = video_drvdata(file);
1525
1526 if (vf->tuner != 0)
1527 return -EINVAL;
1528 dev->tv_freq = clamp_t(unsigned, vf->frequency, MIN_TV_FREQ, MAX_TV_FREQ);
1529 if (vivid_is_tv_cap(dev))
1530 vivid_update_quality(dev);
1531 return 0;
1532 }
1533
vivid_video_s_tuner(struct file * file,void * fh,const struct v4l2_tuner * vt)1534 int vivid_video_s_tuner(struct file *file, void *fh, const struct v4l2_tuner *vt)
1535 {
1536 struct vivid_dev *dev = video_drvdata(file);
1537
1538 if (vt->index != 0)
1539 return -EINVAL;
1540 if (vt->audmode > V4L2_TUNER_MODE_LANG1_LANG2)
1541 return -EINVAL;
1542 dev->tv_audmode = vt->audmode;
1543 return 0;
1544 }
1545
vivid_video_g_tuner(struct file * file,void * fh,struct v4l2_tuner * vt)1546 int vivid_video_g_tuner(struct file *file, void *fh, struct v4l2_tuner *vt)
1547 {
1548 struct vivid_dev *dev = video_drvdata(file);
1549 enum tpg_quality qual;
1550
1551 if (vt->index != 0)
1552 return -EINVAL;
1553
1554 vt->capability = V4L2_TUNER_CAP_NORM | V4L2_TUNER_CAP_STEREO |
1555 V4L2_TUNER_CAP_LANG1 | V4L2_TUNER_CAP_LANG2;
1556 vt->audmode = dev->tv_audmode;
1557 vt->rangelow = MIN_TV_FREQ;
1558 vt->rangehigh = MAX_TV_FREQ;
1559 qual = vivid_get_quality(dev, &vt->afc);
1560 if (qual == TPG_QUAL_COLOR)
1561 vt->signal = 0xffff;
1562 else if (qual == TPG_QUAL_GRAY)
1563 vt->signal = 0x8000;
1564 else
1565 vt->signal = 0;
1566 if (qual == TPG_QUAL_NOISE) {
1567 vt->rxsubchans = 0;
1568 } else if (qual == TPG_QUAL_GRAY) {
1569 vt->rxsubchans = V4L2_TUNER_SUB_MONO;
1570 } else {
1571 unsigned int channel_nr = dev->tv_freq / (6 * 16);
1572 unsigned int options =
1573 (dev->std_cap[dev->input] & V4L2_STD_NTSC_M) ? 4 : 3;
1574
1575 switch (channel_nr % options) {
1576 case 0:
1577 vt->rxsubchans = V4L2_TUNER_SUB_MONO;
1578 break;
1579 case 1:
1580 vt->rxsubchans = V4L2_TUNER_SUB_STEREO;
1581 break;
1582 case 2:
1583 if (dev->std_cap[dev->input] & V4L2_STD_NTSC_M)
1584 vt->rxsubchans = V4L2_TUNER_SUB_MONO | V4L2_TUNER_SUB_SAP;
1585 else
1586 vt->rxsubchans = V4L2_TUNER_SUB_LANG1 | V4L2_TUNER_SUB_LANG2;
1587 break;
1588 case 3:
1589 vt->rxsubchans = V4L2_TUNER_SUB_STEREO | V4L2_TUNER_SUB_SAP;
1590 break;
1591 }
1592 }
1593 strscpy(vt->name, "TV Tuner", sizeof(vt->name));
1594 return 0;
1595 }
1596
1597 /* Must remain in sync with the vivid_ctrl_standard_strings array */
1598 const v4l2_std_id vivid_standard[] = {
1599 V4L2_STD_NTSC_M,
1600 V4L2_STD_NTSC_M_JP,
1601 V4L2_STD_NTSC_M_KR,
1602 V4L2_STD_NTSC_443,
1603 V4L2_STD_PAL_BG | V4L2_STD_PAL_H,
1604 V4L2_STD_PAL_I,
1605 V4L2_STD_PAL_DK,
1606 V4L2_STD_PAL_M,
1607 V4L2_STD_PAL_N,
1608 V4L2_STD_PAL_Nc,
1609 V4L2_STD_PAL_60,
1610 V4L2_STD_SECAM_B | V4L2_STD_SECAM_G | V4L2_STD_SECAM_H,
1611 V4L2_STD_SECAM_DK,
1612 V4L2_STD_SECAM_L,
1613 V4L2_STD_SECAM_LC,
1614 V4L2_STD_UNKNOWN
1615 };
1616
1617 /* Must remain in sync with the vivid_standard array */
1618 const char * const vivid_ctrl_standard_strings[] = {
1619 "NTSC-M",
1620 "NTSC-M-JP",
1621 "NTSC-M-KR",
1622 "NTSC-443",
1623 "PAL-BGH",
1624 "PAL-I",
1625 "PAL-DK",
1626 "PAL-M",
1627 "PAL-N",
1628 "PAL-Nc",
1629 "PAL-60",
1630 "SECAM-BGH",
1631 "SECAM-DK",
1632 "SECAM-L",
1633 "SECAM-Lc",
1634 NULL,
1635 };
1636
vidioc_querystd(struct file * file,void * priv,v4l2_std_id * id)1637 int vidioc_querystd(struct file *file, void *priv, v4l2_std_id *id)
1638 {
1639 struct vivid_dev *dev = video_drvdata(file);
1640 unsigned int last = dev->query_std_last[dev->input];
1641
1642 if (!vivid_is_sdtv_cap(dev))
1643 return -ENODATA;
1644 if (dev->std_signal_mode[dev->input] == NO_SIGNAL ||
1645 dev->std_signal_mode[dev->input] == NO_LOCK) {
1646 *id = V4L2_STD_UNKNOWN;
1647 return 0;
1648 }
1649 if (vivid_is_tv_cap(dev) && tpg_g_quality(&dev->tpg) == TPG_QUAL_NOISE) {
1650 *id = V4L2_STD_UNKNOWN;
1651 } else if (dev->std_signal_mode[dev->input] == CURRENT_STD) {
1652 *id = dev->std_cap[dev->input];
1653 } else if (dev->std_signal_mode[dev->input] == SELECTED_STD) {
1654 *id = dev->query_std[dev->input];
1655 } else {
1656 *id = vivid_standard[last];
1657 dev->query_std_last[dev->input] =
1658 (last + 1) % ARRAY_SIZE(vivid_standard);
1659 }
1660
1661 return 0;
1662 }
1663
vivid_vid_cap_s_std(struct file * file,void * priv,v4l2_std_id id)1664 int vivid_vid_cap_s_std(struct file *file, void *priv, v4l2_std_id id)
1665 {
1666 struct vivid_dev *dev = video_drvdata(file);
1667
1668 if (!vivid_is_sdtv_cap(dev))
1669 return -ENODATA;
1670 if (dev->std_cap[dev->input] == id)
1671 return 0;
1672 if (vb2_is_busy(&dev->vb_vid_cap_q) || vb2_is_busy(&dev->vb_vbi_cap_q))
1673 return -EBUSY;
1674 dev->std_cap[dev->input] = id;
1675 vivid_update_format_cap(dev, false);
1676 return 0;
1677 }
1678
find_aspect_ratio(u32 width,u32 height,u32 * num,u32 * denom)1679 static void find_aspect_ratio(u32 width, u32 height,
1680 u32 *num, u32 *denom)
1681 {
1682 if (!(height % 3) && ((height * 4 / 3) == width)) {
1683 *num = 4;
1684 *denom = 3;
1685 } else if (!(height % 9) && ((height * 16 / 9) == width)) {
1686 *num = 16;
1687 *denom = 9;
1688 } else if (!(height % 10) && ((height * 16 / 10) == width)) {
1689 *num = 16;
1690 *denom = 10;
1691 } else if (!(height % 4) && ((height * 5 / 4) == width)) {
1692 *num = 5;
1693 *denom = 4;
1694 } else if (!(height % 9) && ((height * 15 / 9) == width)) {
1695 *num = 15;
1696 *denom = 9;
1697 } else { /* default to 16:9 */
1698 *num = 16;
1699 *denom = 9;
1700 }
1701 }
1702
valid_cvt_gtf_timings(struct v4l2_dv_timings * timings)1703 static bool valid_cvt_gtf_timings(struct v4l2_dv_timings *timings)
1704 {
1705 struct v4l2_bt_timings *bt = &timings->bt;
1706 u32 total_h_pixel;
1707 u32 total_v_lines;
1708 u32 h_freq;
1709
1710 if (!v4l2_valid_dv_timings(timings, &vivid_dv_timings_cap,
1711 NULL, NULL))
1712 return false;
1713
1714 total_h_pixel = V4L2_DV_BT_FRAME_WIDTH(bt);
1715 total_v_lines = V4L2_DV_BT_FRAME_HEIGHT(bt);
1716
1717 h_freq = (u32)bt->pixelclock / total_h_pixel;
1718
1719 if (bt->standards == 0 || (bt->standards & V4L2_DV_BT_STD_CVT)) {
1720 if (v4l2_detect_cvt(total_v_lines, h_freq, bt->vsync, bt->width,
1721 bt->polarities, bt->interlaced, timings))
1722 return true;
1723 }
1724
1725 if (bt->standards == 0 || (bt->standards & V4L2_DV_BT_STD_GTF)) {
1726 struct v4l2_fract aspect_ratio;
1727
1728 find_aspect_ratio(bt->width, bt->height,
1729 &aspect_ratio.numerator,
1730 &aspect_ratio.denominator);
1731 if (v4l2_detect_gtf(total_v_lines, h_freq, bt->vsync,
1732 bt->polarities, bt->interlaced,
1733 aspect_ratio, timings))
1734 return true;
1735 }
1736 return false;
1737 }
1738
vivid_vid_cap_s_dv_timings(struct file * file,void * _fh,struct v4l2_dv_timings * timings)1739 int vivid_vid_cap_s_dv_timings(struct file *file, void *_fh,
1740 struct v4l2_dv_timings *timings)
1741 {
1742 struct vivid_dev *dev = video_drvdata(file);
1743
1744 if (!vivid_is_hdmi_cap(dev))
1745 return -ENODATA;
1746 if (!v4l2_find_dv_timings_cap(timings, &vivid_dv_timings_cap,
1747 0, NULL, NULL) &&
1748 !valid_cvt_gtf_timings(timings))
1749 return -EINVAL;
1750
1751 if (v4l2_match_dv_timings(timings, &dev->dv_timings_cap[dev->input],
1752 0, false))
1753 return 0;
1754 if (vb2_is_busy(&dev->vb_vid_cap_q))
1755 return -EBUSY;
1756
1757 dev->dv_timings_cap[dev->input] = *timings;
1758 vivid_update_format_cap(dev, false);
1759 return 0;
1760 }
1761
vidioc_query_dv_timings(struct file * file,void * _fh,struct v4l2_dv_timings * timings)1762 int vidioc_query_dv_timings(struct file *file, void *_fh,
1763 struct v4l2_dv_timings *timings)
1764 {
1765 struct vivid_dev *dev = video_drvdata(file);
1766 unsigned int input = dev->input;
1767 unsigned int last = dev->query_dv_timings_last[input];
1768
1769 if (!vivid_is_hdmi_cap(dev))
1770 return -ENODATA;
1771 if (dev->dv_timings_signal_mode[input] == NO_SIGNAL ||
1772 dev->edid_blocks == 0)
1773 return -ENOLINK;
1774 if (dev->dv_timings_signal_mode[input] == NO_LOCK)
1775 return -ENOLCK;
1776 if (dev->dv_timings_signal_mode[input] == OUT_OF_RANGE) {
1777 timings->bt.pixelclock = vivid_dv_timings_cap.bt.max_pixelclock * 2;
1778 return -ERANGE;
1779 }
1780 if (dev->dv_timings_signal_mode[input] == CURRENT_DV_TIMINGS) {
1781 *timings = dev->dv_timings_cap[input];
1782 } else if (dev->dv_timings_signal_mode[input] ==
1783 SELECTED_DV_TIMINGS) {
1784 *timings =
1785 v4l2_dv_timings_presets[dev->query_dv_timings[input]];
1786 } else {
1787 *timings =
1788 v4l2_dv_timings_presets[last];
1789 dev->query_dv_timings_last[input] =
1790 (last + 1) % dev->query_dv_timings_size;
1791 }
1792 return 0;
1793 }
1794
vidioc_s_edid(struct file * file,void * _fh,struct v4l2_edid * edid)1795 int vidioc_s_edid(struct file *file, void *_fh,
1796 struct v4l2_edid *edid)
1797 {
1798 struct vivid_dev *dev = video_drvdata(file);
1799 u16 phys_addr;
1800 u32 display_present = 0;
1801 unsigned int i, j;
1802 int ret;
1803
1804 memset(edid->reserved, 0, sizeof(edid->reserved));
1805 if (edid->pad >= dev->num_inputs)
1806 return -EINVAL;
1807 if (dev->input_type[edid->pad] != HDMI || edid->start_block)
1808 return -EINVAL;
1809 if (edid->blocks == 0) {
1810 dev->edid_blocks = 0;
1811 v4l2_ctrl_s_ctrl(dev->ctrl_tx_edid_present, 0);
1812 v4l2_ctrl_s_ctrl(dev->ctrl_tx_hotplug, 0);
1813 phys_addr = CEC_PHYS_ADDR_INVALID;
1814 goto set_phys_addr;
1815 }
1816 if (edid->blocks > dev->edid_max_blocks) {
1817 edid->blocks = dev->edid_max_blocks;
1818 return -E2BIG;
1819 }
1820 phys_addr = cec_get_edid_phys_addr(edid->edid, edid->blocks * 128, NULL);
1821 ret = v4l2_phys_addr_validate(phys_addr, &phys_addr, NULL);
1822 if (ret)
1823 return ret;
1824
1825 if (vb2_is_busy(&dev->vb_vid_cap_q))
1826 return -EBUSY;
1827
1828 dev->edid_blocks = edid->blocks;
1829 memcpy(dev->edid, edid->edid, edid->blocks * 128);
1830
1831 for (i = 0, j = 0; i < dev->num_outputs; i++)
1832 if (dev->output_type[i] == HDMI)
1833 display_present |=
1834 dev->display_present[i] << j++;
1835
1836 v4l2_ctrl_s_ctrl(dev->ctrl_tx_edid_present, display_present);
1837 v4l2_ctrl_s_ctrl(dev->ctrl_tx_hotplug, display_present);
1838
1839 set_phys_addr:
1840 /* TODO: a proper hotplug detect cycle should be emulated here */
1841 cec_s_phys_addr(dev->cec_rx_adap, phys_addr, false);
1842
1843 for (i = 0; i < MAX_OUTPUTS && dev->cec_tx_adap[i]; i++)
1844 cec_s_phys_addr(dev->cec_tx_adap[i],
1845 dev->display_present[i] ?
1846 v4l2_phys_addr_for_input(phys_addr, i + 1) :
1847 CEC_PHYS_ADDR_INVALID,
1848 false);
1849 return 0;
1850 }
1851
vidioc_enum_framesizes(struct file * file,void * fh,struct v4l2_frmsizeenum * fsize)1852 int vidioc_enum_framesizes(struct file *file, void *fh,
1853 struct v4l2_frmsizeenum *fsize)
1854 {
1855 struct vivid_dev *dev = video_drvdata(file);
1856
1857 if (!vivid_is_webcam(dev) && !dev->has_scaler_cap)
1858 return -EINVAL;
1859 if (vivid_get_format(dev, fsize->pixel_format) == NULL)
1860 return -EINVAL;
1861 if (vivid_is_webcam(dev)) {
1862 if (fsize->index >= ARRAY_SIZE(webcam_sizes))
1863 return -EINVAL;
1864 fsize->type = V4L2_FRMSIZE_TYPE_DISCRETE;
1865 fsize->discrete = webcam_sizes[fsize->index];
1866 return 0;
1867 }
1868 if (fsize->index)
1869 return -EINVAL;
1870 fsize->type = V4L2_FRMSIZE_TYPE_STEPWISE;
1871 fsize->stepwise.min_width = MIN_WIDTH;
1872 fsize->stepwise.max_width = MAX_WIDTH * MAX_ZOOM;
1873 fsize->stepwise.step_width = 2;
1874 fsize->stepwise.min_height = MIN_HEIGHT;
1875 fsize->stepwise.max_height = MAX_HEIGHT * MAX_ZOOM;
1876 fsize->stepwise.step_height = 2;
1877 return 0;
1878 }
1879
1880 /* timeperframe is arbitrary and continuous */
vidioc_enum_frameintervals(struct file * file,void * priv,struct v4l2_frmivalenum * fival)1881 int vidioc_enum_frameintervals(struct file *file, void *priv,
1882 struct v4l2_frmivalenum *fival)
1883 {
1884 struct vivid_dev *dev = video_drvdata(file);
1885 const struct vivid_fmt *fmt;
1886 int i;
1887
1888 fmt = vivid_get_format(dev, fival->pixel_format);
1889 if (!fmt)
1890 return -EINVAL;
1891
1892 if (!vivid_is_webcam(dev)) {
1893 if (fival->index)
1894 return -EINVAL;
1895 if (fival->width < MIN_WIDTH || fival->width > MAX_WIDTH * MAX_ZOOM)
1896 return -EINVAL;
1897 if (fival->height < MIN_HEIGHT || fival->height > MAX_HEIGHT * MAX_ZOOM)
1898 return -EINVAL;
1899 fival->type = V4L2_FRMIVAL_TYPE_DISCRETE;
1900 fival->discrete = dev->timeperframe_vid_cap;
1901 return 0;
1902 }
1903
1904 for (i = 0; i < ARRAY_SIZE(webcam_sizes); i++)
1905 if (fival->width == webcam_sizes[i].width &&
1906 fival->height == webcam_sizes[i].height)
1907 break;
1908 if (i == ARRAY_SIZE(webcam_sizes))
1909 return -EINVAL;
1910 if (fival->index >= 2 * (VIVID_WEBCAM_SIZES - i))
1911 return -EINVAL;
1912 fival->type = V4L2_FRMIVAL_TYPE_DISCRETE;
1913 fival->discrete = webcam_intervals[fival->index];
1914 return 0;
1915 }
1916
vivid_vid_cap_g_parm(struct file * file,void * priv,struct v4l2_streamparm * parm)1917 int vivid_vid_cap_g_parm(struct file *file, void *priv,
1918 struct v4l2_streamparm *parm)
1919 {
1920 struct vivid_dev *dev = video_drvdata(file);
1921
1922 if (parm->type != (dev->multiplanar ?
1923 V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE :
1924 V4L2_BUF_TYPE_VIDEO_CAPTURE))
1925 return -EINVAL;
1926
1927 parm->parm.capture.capability = V4L2_CAP_TIMEPERFRAME;
1928 parm->parm.capture.timeperframe = dev->timeperframe_vid_cap;
1929 parm->parm.capture.readbuffers = 1;
1930 return 0;
1931 }
1932
vivid_vid_cap_s_parm(struct file * file,void * priv,struct v4l2_streamparm * parm)1933 int vivid_vid_cap_s_parm(struct file *file, void *priv,
1934 struct v4l2_streamparm *parm)
1935 {
1936 struct vivid_dev *dev = video_drvdata(file);
1937 unsigned ival_sz = 2 * (VIVID_WEBCAM_SIZES - dev->webcam_size_idx);
1938 struct v4l2_fract tpf;
1939 unsigned i;
1940
1941 if (parm->type != (dev->multiplanar ?
1942 V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE :
1943 V4L2_BUF_TYPE_VIDEO_CAPTURE))
1944 return -EINVAL;
1945 if (!vivid_is_webcam(dev))
1946 return vivid_vid_cap_g_parm(file, priv, parm);
1947
1948 tpf = parm->parm.capture.timeperframe;
1949
1950 if (tpf.denominator == 0)
1951 tpf = webcam_intervals[ival_sz - 1];
1952 for (i = 0; i < ival_sz; i++)
1953 if (V4L2_FRACT_COMPARE(tpf, >=, webcam_intervals[i]))
1954 break;
1955 if (i == ival_sz)
1956 i = ival_sz - 1;
1957 dev->webcam_ival_idx = i;
1958 tpf = webcam_intervals[dev->webcam_ival_idx];
1959
1960 /* resync the thread's timings */
1961 dev->cap_seq_resync = true;
1962 dev->timeperframe_vid_cap = tpf;
1963 parm->parm.capture.capability = V4L2_CAP_TIMEPERFRAME;
1964 parm->parm.capture.timeperframe = tpf;
1965 parm->parm.capture.readbuffers = 1;
1966 return 0;
1967 }
1968
