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 unsigned size;
385 u64 pixelclock;
386
387 switch (dev->input_type[dev->input]) {
388 case WEBCAM:
389 default:
390 dev->src_rect.width = webcam_sizes[dev->webcam_size_idx].width;
391 dev->src_rect.height = webcam_sizes[dev->webcam_size_idx].height;
392 dev->timeperframe_vid_cap = webcam_intervals[dev->webcam_ival_idx];
393 dev->field_cap = V4L2_FIELD_NONE;
394 tpg_s_rgb_range(&dev->tpg, V4L2_DV_RGB_RANGE_AUTO);
395 break;
396 case TV:
397 case SVID:
398 dev->field_cap = dev->tv_field_cap;
399 dev->src_rect.width = 720;
400 if (dev->std_cap[dev->input] & V4L2_STD_525_60) {
401 dev->src_rect.height = 480;
402 dev->timeperframe_vid_cap = (struct v4l2_fract) { 1001, 30000 };
403 dev->service_set_cap = V4L2_SLICED_CAPTION_525;
404 } else {
405 dev->src_rect.height = 576;
406 dev->timeperframe_vid_cap = (struct v4l2_fract) { 1000, 25000 };
407 dev->service_set_cap = V4L2_SLICED_WSS_625 | V4L2_SLICED_TELETEXT_B;
408 }
409 tpg_s_rgb_range(&dev->tpg, V4L2_DV_RGB_RANGE_AUTO);
410 break;
411 case HDMI:
412 dev->src_rect.width = bt->width;
413 dev->src_rect.height = bt->height;
414 size = V4L2_DV_BT_FRAME_WIDTH(bt) * V4L2_DV_BT_FRAME_HEIGHT(bt);
415 if (dev->reduced_fps && can_reduce_fps(bt)) {
416 pixelclock = div_u64(bt->pixelclock * 1000, 1001);
417 bt->flags |= V4L2_DV_FL_REDUCED_FPS;
418 } else {
419 pixelclock = bt->pixelclock;
420 bt->flags &= ~V4L2_DV_FL_REDUCED_FPS;
421 }
422 dev->timeperframe_vid_cap = (struct v4l2_fract) {
423 size / 100, (u32)pixelclock / 100
424 };
425 if (bt->interlaced)
426 dev->field_cap = V4L2_FIELD_ALTERNATE;
427 else
428 dev->field_cap = V4L2_FIELD_NONE;
429
430 /*
431 * We can be called from within s_ctrl, in that case we can't
432 * set/get controls. Luckily we don't need to in that case.
433 */
434 if (keep_controls || !dev->colorspace)
435 break;
436 if (bt->flags & V4L2_DV_FL_IS_CE_VIDEO) {
437 if (bt->width == 720 && bt->height <= 576)
438 v4l2_ctrl_s_ctrl(dev->colorspace, VIVID_CS_170M);
439 else
440 v4l2_ctrl_s_ctrl(dev->colorspace, VIVID_CS_709);
441 v4l2_ctrl_s_ctrl(dev->real_rgb_range_cap, 1);
442 } else {
443 v4l2_ctrl_s_ctrl(dev->colorspace, VIVID_CS_SRGB);
444 v4l2_ctrl_s_ctrl(dev->real_rgb_range_cap, 0);
445 }
446 tpg_s_rgb_range(&dev->tpg, v4l2_ctrl_g_ctrl(dev->rgb_range_cap));
447 break;
448 }
449 vfree(dev->bitmap_cap);
450 dev->bitmap_cap = NULL;
451 vivid_update_quality(dev);
452 tpg_reset_source(&dev->tpg, dev->src_rect.width, dev->src_rect.height, dev->field_cap);
453 dev->crop_cap = dev->src_rect;
454 dev->crop_bounds_cap = dev->src_rect;
455 if (dev->bitmap_cap &&
456 (dev->compose_cap.width != dev->crop_cap.width ||
457 dev->compose_cap.height != dev->crop_cap.height)) {
458 vfree(dev->bitmap_cap);
459 dev->bitmap_cap = NULL;
460 }
461 dev->compose_cap = dev->crop_cap;
462 if (V4L2_FIELD_HAS_T_OR_B(dev->field_cap))
463 dev->compose_cap.height /= 2;
464 dev->fmt_cap_rect = dev->compose_cap;
465 tpg_s_video_aspect(&dev->tpg, vivid_get_video_aspect(dev));
466 tpg_s_pixel_aspect(&dev->tpg, vivid_get_pixel_aspect(dev));
467 tpg_update_mv_step(&dev->tpg);
468 }
469
470 /* Map the field to something that is valid for the current input */
vivid_field_cap(struct vivid_dev * dev,enum v4l2_field field)471 static enum v4l2_field vivid_field_cap(struct vivid_dev *dev, enum v4l2_field field)
472 {
473 if (vivid_is_sdtv_cap(dev)) {
474 switch (field) {
475 case V4L2_FIELD_INTERLACED_TB:
476 case V4L2_FIELD_INTERLACED_BT:
477 case V4L2_FIELD_SEQ_TB:
478 case V4L2_FIELD_SEQ_BT:
479 case V4L2_FIELD_TOP:
480 case V4L2_FIELD_BOTTOM:
481 case V4L2_FIELD_ALTERNATE:
482 return field;
483 case V4L2_FIELD_INTERLACED:
484 default:
485 return V4L2_FIELD_INTERLACED;
486 }
487 }
488 if (vivid_is_hdmi_cap(dev))
489 return dev->dv_timings_cap[dev->input].bt.interlaced ?
490 V4L2_FIELD_ALTERNATE : V4L2_FIELD_NONE;
491 return V4L2_FIELD_NONE;
492 }
493
vivid_colorspace_cap(struct vivid_dev * dev)494 static unsigned vivid_colorspace_cap(struct vivid_dev *dev)
495 {
496 if (!dev->loop_video || vivid_is_webcam(dev) || vivid_is_tv_cap(dev))
497 return tpg_g_colorspace(&dev->tpg);
498 return dev->colorspace_out;
499 }
500
vivid_xfer_func_cap(struct vivid_dev * dev)501 static unsigned vivid_xfer_func_cap(struct vivid_dev *dev)
502 {
503 if (!dev->loop_video || vivid_is_webcam(dev) || vivid_is_tv_cap(dev))
504 return tpg_g_xfer_func(&dev->tpg);
505 return dev->xfer_func_out;
506 }
507
vivid_ycbcr_enc_cap(struct vivid_dev * dev)508 static unsigned vivid_ycbcr_enc_cap(struct vivid_dev *dev)
509 {
510 if (!dev->loop_video || vivid_is_webcam(dev) || vivid_is_tv_cap(dev))
511 return tpg_g_ycbcr_enc(&dev->tpg);
512 return dev->ycbcr_enc_out;
513 }
514
vivid_hsv_enc_cap(struct vivid_dev * dev)515 static unsigned int vivid_hsv_enc_cap(struct vivid_dev *dev)
516 {
517 if (!dev->loop_video || vivid_is_webcam(dev) || vivid_is_tv_cap(dev))
518 return tpg_g_hsv_enc(&dev->tpg);
519 return dev->hsv_enc_out;
520 }
521
vivid_quantization_cap(struct vivid_dev * dev)522 static unsigned vivid_quantization_cap(struct vivid_dev *dev)
523 {
524 if (!dev->loop_video || vivid_is_webcam(dev) || vivid_is_tv_cap(dev))
525 return tpg_g_quantization(&dev->tpg);
526 return dev->quantization_out;
527 }
528
vivid_g_fmt_vid_cap(struct file * file,void * priv,struct v4l2_format * f)529 int vivid_g_fmt_vid_cap(struct file *file, void *priv,
530 struct v4l2_format *f)
531 {
532 struct vivid_dev *dev = video_drvdata(file);
533 struct v4l2_pix_format_mplane *mp = &f->fmt.pix_mp;
534 unsigned p;
535
536 mp->width = dev->fmt_cap_rect.width;
537 mp->height = dev->fmt_cap_rect.height;
538 mp->field = dev->field_cap;
539 mp->pixelformat = dev->fmt_cap->fourcc;
540 mp->colorspace = vivid_colorspace_cap(dev);
541 mp->xfer_func = vivid_xfer_func_cap(dev);
542 if (dev->fmt_cap->color_enc == TGP_COLOR_ENC_HSV)
543 mp->hsv_enc = vivid_hsv_enc_cap(dev);
544 else
545 mp->ycbcr_enc = vivid_ycbcr_enc_cap(dev);
546 mp->quantization = vivid_quantization_cap(dev);
547 mp->num_planes = dev->fmt_cap->buffers;
548 for (p = 0; p < mp->num_planes; p++) {
549 mp->plane_fmt[p].bytesperline = tpg_g_bytesperline(&dev->tpg, p);
550 mp->plane_fmt[p].sizeimage =
551 (tpg_g_line_width(&dev->tpg, p) * mp->height) /
552 dev->fmt_cap->vdownsampling[p] +
553 dev->fmt_cap->data_offset[p];
554 }
555 return 0;
556 }
557
vivid_try_fmt_vid_cap(struct file * file,void * priv,struct v4l2_format * f)558 int vivid_try_fmt_vid_cap(struct file *file, void *priv,
559 struct v4l2_format *f)
560 {
561 struct v4l2_pix_format_mplane *mp = &f->fmt.pix_mp;
562 struct v4l2_plane_pix_format *pfmt = mp->plane_fmt;
563 struct vivid_dev *dev = video_drvdata(file);
564 const struct vivid_fmt *fmt;
565 unsigned bytesperline, max_bpl;
566 unsigned factor = 1;
567 unsigned w, h;
568 unsigned p;
569 bool user_set_csc = !!(mp->flags & V4L2_PIX_FMT_FLAG_SET_CSC);
570
571 fmt = vivid_get_format(dev, mp->pixelformat);
572 if (!fmt) {
573 dprintk(dev, 1, "Fourcc format (0x%08x) unknown.\n",
574 mp->pixelformat);
575 mp->pixelformat = V4L2_PIX_FMT_YUYV;
576 fmt = vivid_get_format(dev, mp->pixelformat);
577 }
578
579 mp->field = vivid_field_cap(dev, mp->field);
580 if (vivid_is_webcam(dev)) {
581 const struct v4l2_frmsize_discrete *sz =
582 v4l2_find_nearest_size(webcam_sizes,
583 VIVID_WEBCAM_SIZES, width,
584 height, mp->width, mp->height);
585
586 w = sz->width;
587 h = sz->height;
588 } else if (vivid_is_sdtv_cap(dev)) {
589 w = 720;
590 h = (dev->std_cap[dev->input] & V4L2_STD_525_60) ? 480 : 576;
591 } else {
592 w = dev->src_rect.width;
593 h = dev->src_rect.height;
594 }
595 if (V4L2_FIELD_HAS_T_OR_B(mp->field))
596 factor = 2;
597 if (vivid_is_webcam(dev) ||
598 (!dev->has_scaler_cap && !dev->has_crop_cap && !dev->has_compose_cap)) {
599 mp->width = w;
600 mp->height = h / factor;
601 } else {
602 struct v4l2_rect r = { 0, 0, mp->width, mp->height * factor };
603
604 v4l2_rect_set_min_size(&r, &vivid_min_rect);
605 v4l2_rect_set_max_size(&r, &vivid_max_rect);
606 if (dev->has_scaler_cap && !dev->has_compose_cap) {
607 struct v4l2_rect max_r = { 0, 0, MAX_ZOOM * w, MAX_ZOOM * h };
608
609 v4l2_rect_set_max_size(&r, &max_r);
610 } else if (!dev->has_scaler_cap && dev->has_crop_cap && !dev->has_compose_cap) {
611 v4l2_rect_set_max_size(&r, &dev->src_rect);
612 } else if (!dev->has_scaler_cap && !dev->has_crop_cap) {
613 v4l2_rect_set_min_size(&r, &dev->src_rect);
614 }
615 mp->width = r.width;
616 mp->height = r.height / factor;
617 }
618
619 /* This driver supports custom bytesperline values */
620
621 mp->num_planes = fmt->buffers;
622 for (p = 0; p < fmt->buffers; p++) {
623 /* Calculate the minimum supported bytesperline value */
624 bytesperline = (mp->width * fmt->bit_depth[p]) >> 3;
625 /* Calculate the maximum supported bytesperline value */
626 max_bpl = (MAX_ZOOM * MAX_WIDTH * fmt->bit_depth[p]) >> 3;
627
628 if (pfmt[p].bytesperline > max_bpl)
629 pfmt[p].bytesperline = max_bpl;
630 if (pfmt[p].bytesperline < bytesperline)
631 pfmt[p].bytesperline = bytesperline;
632
633 pfmt[p].sizeimage = (pfmt[p].bytesperline * mp->height) /
634 fmt->vdownsampling[p] + fmt->data_offset[p];
635
636 memset(pfmt[p].reserved, 0, sizeof(pfmt[p].reserved));
637 }
638 for (p = fmt->buffers; p < fmt->planes; p++)
639 pfmt[0].sizeimage += (pfmt[0].bytesperline * mp->height *
640 (fmt->bit_depth[p] / fmt->vdownsampling[p])) /
641 (fmt->bit_depth[0] / fmt->vdownsampling[0]);
642
643 if (!user_set_csc || !v4l2_is_colorspace_valid(mp->colorspace))
644 mp->colorspace = vivid_colorspace_cap(dev);
645
646 if (!user_set_csc || !v4l2_is_xfer_func_valid(mp->xfer_func))
647 mp->xfer_func = vivid_xfer_func_cap(dev);
648
649 if (fmt->color_enc == TGP_COLOR_ENC_HSV) {
650 if (!user_set_csc || !v4l2_is_hsv_enc_valid(mp->hsv_enc))
651 mp->hsv_enc = vivid_hsv_enc_cap(dev);
652 } else if (fmt->color_enc == TGP_COLOR_ENC_YCBCR) {
653 if (!user_set_csc || !v4l2_is_ycbcr_enc_valid(mp->ycbcr_enc))
654 mp->ycbcr_enc = vivid_ycbcr_enc_cap(dev);
655 } else {
656 mp->ycbcr_enc = vivid_ycbcr_enc_cap(dev);
657 }
658
659 if (fmt->color_enc == TGP_COLOR_ENC_YCBCR ||
660 fmt->color_enc == TGP_COLOR_ENC_RGB) {
661 if (!user_set_csc || !v4l2_is_quant_valid(mp->quantization))
662 mp->quantization = vivid_quantization_cap(dev);
663 } else {
664 mp->quantization = vivid_quantization_cap(dev);
665 }
666
667 memset(mp->reserved, 0, sizeof(mp->reserved));
668 return 0;
669 }
670
vivid_s_fmt_vid_cap(struct file * file,void * priv,struct v4l2_format * f)671 int vivid_s_fmt_vid_cap(struct file *file, void *priv,
672 struct v4l2_format *f)
673 {
674 struct v4l2_pix_format_mplane *mp = &f->fmt.pix_mp;
675 struct vivid_dev *dev = video_drvdata(file);
676 struct v4l2_rect *crop = &dev->crop_cap;
677 struct v4l2_rect *compose = &dev->compose_cap;
678 struct vb2_queue *q = &dev->vb_vid_cap_q;
679 int ret = vivid_try_fmt_vid_cap(file, priv, f);
680 unsigned factor = 1;
681 unsigned p;
682 unsigned i;
683
684 if (ret < 0)
685 return ret;
686
687 if (vb2_is_busy(q)) {
688 dprintk(dev, 1, "%s device busy\n", __func__);
689 return -EBUSY;
690 }
691
692 if (dev->overlay_cap_owner && dev->fb_cap.fmt.pixelformat != mp->pixelformat) {
693 dprintk(dev, 1, "overlay is active, can't change pixelformat\n");
694 return -EBUSY;
695 }
696
697 dev->fmt_cap = vivid_get_format(dev, mp->pixelformat);
698 if (V4L2_FIELD_HAS_T_OR_B(mp->field))
699 factor = 2;
700
701 /* Note: the webcam input doesn't support scaling, cropping or composing */
702
703 if (!vivid_is_webcam(dev) &&
704 (dev->has_scaler_cap || dev->has_crop_cap || dev->has_compose_cap)) {
705 struct v4l2_rect r = { 0, 0, mp->width, mp->height };
706
707 if (dev->has_scaler_cap) {
708 if (dev->has_compose_cap)
709 v4l2_rect_map_inside(compose, &r);
710 else
711 *compose = r;
712 if (dev->has_crop_cap && !dev->has_compose_cap) {
713 struct v4l2_rect min_r = {
714 0, 0,
715 r.width / MAX_ZOOM,
716 factor * r.height / MAX_ZOOM
717 };
718 struct v4l2_rect max_r = {
719 0, 0,
720 r.width * MAX_ZOOM,
721 factor * r.height * MAX_ZOOM
722 };
723
724 v4l2_rect_set_min_size(crop, &min_r);
725 v4l2_rect_set_max_size(crop, &max_r);
726 v4l2_rect_map_inside(crop, &dev->crop_bounds_cap);
727 } else if (dev->has_crop_cap) {
728 struct v4l2_rect min_r = {
729 0, 0,
730 compose->width / MAX_ZOOM,
731 factor * compose->height / MAX_ZOOM
732 };
733 struct v4l2_rect max_r = {
734 0, 0,
735 compose->width * MAX_ZOOM,
736 factor * compose->height * MAX_ZOOM
737 };
738
739 v4l2_rect_set_min_size(crop, &min_r);
740 v4l2_rect_set_max_size(crop, &max_r);
741 v4l2_rect_map_inside(crop, &dev->crop_bounds_cap);
742 }
743 } else if (dev->has_crop_cap && !dev->has_compose_cap) {
744 r.height *= factor;
745 v4l2_rect_set_size_to(crop, &r);
746 v4l2_rect_map_inside(crop, &dev->crop_bounds_cap);
747 r = *crop;
748 r.height /= factor;
749 v4l2_rect_set_size_to(compose, &r);
750 } else if (!dev->has_crop_cap) {
751 v4l2_rect_map_inside(compose, &r);
752 } else {
753 r.height *= factor;
754 v4l2_rect_set_max_size(crop, &r);
755 v4l2_rect_map_inside(crop, &dev->crop_bounds_cap);
756 compose->top *= factor;
757 compose->height *= factor;
758 v4l2_rect_set_size_to(compose, crop);
759 v4l2_rect_map_inside(compose, &r);
760 compose->top /= factor;
761 compose->height /= factor;
762 }
763 } else if (vivid_is_webcam(dev)) {
764 /* Guaranteed to be a match */
765 for (i = 0; i < ARRAY_SIZE(webcam_sizes); i++)
766 if (webcam_sizes[i].width == mp->width &&
767 webcam_sizes[i].height == mp->height)
768 break;
769 dev->webcam_size_idx = i;
770 if (dev->webcam_ival_idx >= 2 * (VIVID_WEBCAM_SIZES - i))
771 dev->webcam_ival_idx = 2 * (VIVID_WEBCAM_SIZES - i) - 1;
772 vivid_update_format_cap(dev, false);
773 } else {
774 struct v4l2_rect r = { 0, 0, mp->width, mp->height };
775
776 v4l2_rect_set_size_to(compose, &r);
777 r.height *= factor;
778 v4l2_rect_set_size_to(crop, &r);
779 }
780
781 dev->fmt_cap_rect.width = mp->width;
782 dev->fmt_cap_rect.height = mp->height;
783 tpg_s_buf_height(&dev->tpg, mp->height);
784 tpg_s_fourcc(&dev->tpg, dev->fmt_cap->fourcc);
785 for (p = 0; p < tpg_g_buffers(&dev->tpg); p++)
786 tpg_s_bytesperline(&dev->tpg, p, mp->plane_fmt[p].bytesperline);
787 dev->field_cap = mp->field;
788 if (dev->field_cap == V4L2_FIELD_ALTERNATE)
789 tpg_s_field(&dev->tpg, V4L2_FIELD_TOP, true);
790 else
791 tpg_s_field(&dev->tpg, dev->field_cap, false);
792 tpg_s_crop_compose(&dev->tpg, &dev->crop_cap, &dev->compose_cap);
793 if (vivid_is_sdtv_cap(dev))
794 dev->tv_field_cap = mp->field;
795 tpg_update_mv_step(&dev->tpg);
796 dev->tpg.colorspace = mp->colorspace;
797 dev->tpg.xfer_func = mp->xfer_func;
798 if (dev->fmt_cap->color_enc == TGP_COLOR_ENC_YCBCR)
799 dev->tpg.ycbcr_enc = mp->ycbcr_enc;
800 else
801 dev->tpg.hsv_enc = mp->hsv_enc;
802 dev->tpg.quantization = mp->quantization;
803
804 return 0;
805 }
806
vidioc_g_fmt_vid_cap_mplane(struct file * file,void * priv,struct v4l2_format * f)807 int vidioc_g_fmt_vid_cap_mplane(struct file *file, void *priv,
808 struct v4l2_format *f)
809 {
810 struct vivid_dev *dev = video_drvdata(file);
811
812 if (!dev->multiplanar)
813 return -ENOTTY;
814 return vivid_g_fmt_vid_cap(file, priv, f);
815 }
816
vidioc_try_fmt_vid_cap_mplane(struct file * file,void * priv,struct v4l2_format * f)817 int vidioc_try_fmt_vid_cap_mplane(struct file *file, void *priv,
818 struct v4l2_format *f)
819 {
820 struct vivid_dev *dev = video_drvdata(file);
821
822 if (!dev->multiplanar)
823 return -ENOTTY;
824 return vivid_try_fmt_vid_cap(file, priv, f);
825 }
826
vidioc_s_fmt_vid_cap_mplane(struct file * file,void * priv,struct v4l2_format * f)827 int vidioc_s_fmt_vid_cap_mplane(struct file *file, void *priv,
828 struct v4l2_format *f)
829 {
830 struct vivid_dev *dev = video_drvdata(file);
831
832 if (!dev->multiplanar)
833 return -ENOTTY;
834 return vivid_s_fmt_vid_cap(file, priv, f);
835 }
836
vidioc_g_fmt_vid_cap(struct file * file,void * priv,struct v4l2_format * f)837 int vidioc_g_fmt_vid_cap(struct file *file, void *priv,
838 struct v4l2_format *f)
839 {
840 struct vivid_dev *dev = video_drvdata(file);
841
842 if (dev->multiplanar)
843 return -ENOTTY;
844 return fmt_sp2mp_func(file, priv, f, vivid_g_fmt_vid_cap);
845 }
846
vidioc_try_fmt_vid_cap(struct file * file,void * priv,struct v4l2_format * f)847 int vidioc_try_fmt_vid_cap(struct file *file, void *priv,
848 struct v4l2_format *f)
849 {
850 struct vivid_dev *dev = video_drvdata(file);
851
852 if (dev->multiplanar)
853 return -ENOTTY;
854 return fmt_sp2mp_func(file, priv, f, vivid_try_fmt_vid_cap);
855 }
856
vidioc_s_fmt_vid_cap(struct file * file,void * priv,struct v4l2_format * f)857 int vidioc_s_fmt_vid_cap(struct file *file, void *priv,
858 struct v4l2_format *f)
859 {
860 struct vivid_dev *dev = video_drvdata(file);
861
862 if (dev->multiplanar)
863 return -ENOTTY;
864 return fmt_sp2mp_func(file, priv, f, vivid_s_fmt_vid_cap);
865 }
866
vivid_vid_cap_g_selection(struct file * file,void * priv,struct v4l2_selection * sel)867 int vivid_vid_cap_g_selection(struct file *file, void *priv,
868 struct v4l2_selection *sel)
869 {
870 struct vivid_dev *dev = video_drvdata(file);
871
872 if (!dev->has_crop_cap && !dev->has_compose_cap)
873 return -ENOTTY;
874 if (sel->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
875 return -EINVAL;
876 if (vivid_is_webcam(dev))
877 return -ENODATA;
878
879 sel->r.left = sel->r.top = 0;
880 switch (sel->target) {
881 case V4L2_SEL_TGT_CROP:
882 if (!dev->has_crop_cap)
883 return -EINVAL;
884 sel->r = dev->crop_cap;
885 break;
886 case V4L2_SEL_TGT_CROP_DEFAULT:
887 case V4L2_SEL_TGT_CROP_BOUNDS:
888 if (!dev->has_crop_cap)
889 return -EINVAL;
890 sel->r = dev->src_rect;
891 break;
892 case V4L2_SEL_TGT_COMPOSE_BOUNDS:
893 if (!dev->has_compose_cap)
894 return -EINVAL;
895 sel->r = vivid_max_rect;
896 break;
897 case V4L2_SEL_TGT_COMPOSE:
898 if (!dev->has_compose_cap)
899 return -EINVAL;
900 sel->r = dev->compose_cap;
901 break;
902 case V4L2_SEL_TGT_COMPOSE_DEFAULT:
903 if (!dev->has_compose_cap)
904 return -EINVAL;
905 sel->r = dev->fmt_cap_rect;
906 break;
907 default:
908 return -EINVAL;
909 }
910 return 0;
911 }
912
vivid_vid_cap_s_selection(struct file * file,void * fh,struct v4l2_selection * s)913 int vivid_vid_cap_s_selection(struct file *file, void *fh, struct v4l2_selection *s)
914 {
915 struct vivid_dev *dev = video_drvdata(file);
916 struct v4l2_rect *crop = &dev->crop_cap;
917 struct v4l2_rect *compose = &dev->compose_cap;
918 unsigned orig_compose_w = compose->width;
919 unsigned orig_compose_h = compose->height;
920 unsigned factor = V4L2_FIELD_HAS_T_OR_B(dev->field_cap) ? 2 : 1;
921 int ret;
922
923 if (!dev->has_crop_cap && !dev->has_compose_cap)
924 return -ENOTTY;
925 if (s->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
926 return -EINVAL;
927 if (vivid_is_webcam(dev))
928 return -ENODATA;
929
930 switch (s->target) {
931 case V4L2_SEL_TGT_CROP:
932 if (!dev->has_crop_cap)
933 return -EINVAL;
934 ret = vivid_vid_adjust_sel(s->flags, &s->r);
935 if (ret)
936 return ret;
937 v4l2_rect_set_min_size(&s->r, &vivid_min_rect);
938 v4l2_rect_set_max_size(&s->r, &dev->src_rect);
939 v4l2_rect_map_inside(&s->r, &dev->crop_bounds_cap);
940 s->r.top /= factor;
941 s->r.height /= factor;
942 if (dev->has_scaler_cap) {
943 struct v4l2_rect fmt = dev->fmt_cap_rect;
944 struct v4l2_rect max_rect = {
945 0, 0,
946 s->r.width * MAX_ZOOM,
947 s->r.height * MAX_ZOOM
948 };
949 struct v4l2_rect min_rect = {
950 0, 0,
951 s->r.width / MAX_ZOOM,
952 s->r.height / MAX_ZOOM
953 };
954
955 v4l2_rect_set_min_size(&fmt, &min_rect);
956 if (!dev->has_compose_cap)
957 v4l2_rect_set_max_size(&fmt, &max_rect);
958 if (!v4l2_rect_same_size(&dev->fmt_cap_rect, &fmt) &&
959 vb2_is_busy(&dev->vb_vid_cap_q))
960 return -EBUSY;
961 if (dev->has_compose_cap) {
962 v4l2_rect_set_min_size(compose, &min_rect);
963 v4l2_rect_set_max_size(compose, &max_rect);
964 v4l2_rect_map_inside(compose, &fmt);
965 }
966 dev->fmt_cap_rect = fmt;
967 tpg_s_buf_height(&dev->tpg, fmt.height);
968 } else if (dev->has_compose_cap) {
969 struct v4l2_rect fmt = dev->fmt_cap_rect;
970
971 v4l2_rect_set_min_size(&fmt, &s->r);
972 if (!v4l2_rect_same_size(&dev->fmt_cap_rect, &fmt) &&
973 vb2_is_busy(&dev->vb_vid_cap_q))
974 return -EBUSY;
975 dev->fmt_cap_rect = fmt;
976 tpg_s_buf_height(&dev->tpg, fmt.height);
977 v4l2_rect_set_size_to(compose, &s->r);
978 v4l2_rect_map_inside(compose, &dev->fmt_cap_rect);
979 } else {
980 if (!v4l2_rect_same_size(&s->r, &dev->fmt_cap_rect) &&
981 vb2_is_busy(&dev->vb_vid_cap_q))
982 return -EBUSY;
983 v4l2_rect_set_size_to(&dev->fmt_cap_rect, &s->r);
984 v4l2_rect_set_size_to(compose, &s->r);
985 v4l2_rect_map_inside(compose, &dev->fmt_cap_rect);
986 tpg_s_buf_height(&dev->tpg, dev->fmt_cap_rect.height);
987 }
988 s->r.top *= factor;
989 s->r.height *= factor;
990 *crop = s->r;
991 break;
992 case V4L2_SEL_TGT_COMPOSE:
993 if (!dev->has_compose_cap)
994 return -EINVAL;
995 ret = vivid_vid_adjust_sel(s->flags, &s->r);
996 if (ret)
997 return ret;
998 v4l2_rect_set_min_size(&s->r, &vivid_min_rect);
999 v4l2_rect_set_max_size(&s->r, &dev->fmt_cap_rect);
1000 if (dev->has_scaler_cap) {
1001 struct v4l2_rect max_rect = {
1002 0, 0,
1003 dev->src_rect.width * MAX_ZOOM,
1004 (dev->src_rect.height / factor) * MAX_ZOOM
1005 };
1006
1007 v4l2_rect_set_max_size(&s->r, &max_rect);
1008 if (dev->has_crop_cap) {
1009 struct v4l2_rect min_rect = {
1010 0, 0,
1011 s->r.width / MAX_ZOOM,
1012 (s->r.height * factor) / MAX_ZOOM
1013 };
1014 struct v4l2_rect max_rect = {
1015 0, 0,
1016 s->r.width * MAX_ZOOM,
1017 (s->r.height * factor) * MAX_ZOOM
1018 };
1019
1020 v4l2_rect_set_min_size(crop, &min_rect);
1021 v4l2_rect_set_max_size(crop, &max_rect);
1022 v4l2_rect_map_inside(crop, &dev->crop_bounds_cap);
1023 }
1024 } else if (dev->has_crop_cap) {
1025 s->r.top *= factor;
1026 s->r.height *= factor;
1027 v4l2_rect_set_max_size(&s->r, &dev->src_rect);
1028 v4l2_rect_set_size_to(crop, &s->r);
1029 v4l2_rect_map_inside(crop, &dev->crop_bounds_cap);
1030 s->r.top /= factor;
1031 s->r.height /= factor;
1032 } else {
1033 v4l2_rect_set_size_to(&s->r, &dev->src_rect);
1034 s->r.height /= factor;
1035 }
1036 v4l2_rect_map_inside(&s->r, &dev->fmt_cap_rect);
1037 *compose = s->r;
1038 break;
1039 default:
1040 return -EINVAL;
1041 }
1042
1043 if (dev->bitmap_cap && (compose->width != orig_compose_w ||
1044 compose->height != orig_compose_h)) {
1045 vfree(dev->bitmap_cap);
1046 dev->bitmap_cap = NULL;
1047 }
1048 tpg_s_crop_compose(&dev->tpg, crop, compose);
1049 return 0;
1050 }
1051
vivid_vid_cap_g_pixelaspect(struct file * file,void * priv,int type,struct v4l2_fract * f)1052 int vivid_vid_cap_g_pixelaspect(struct file *file, void *priv,
1053 int type, struct v4l2_fract *f)
1054 {
1055 struct vivid_dev *dev = video_drvdata(file);
1056
1057 if (type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
1058 return -EINVAL;
1059
1060 switch (vivid_get_pixel_aspect(dev)) {
1061 case TPG_PIXEL_ASPECT_NTSC:
1062 f->numerator = 11;
1063 f->denominator = 10;
1064 break;
1065 case TPG_PIXEL_ASPECT_PAL:
1066 f->numerator = 54;
1067 f->denominator = 59;
1068 break;
1069 default:
1070 break;
1071 }
1072 return 0;
1073 }
1074
vidioc_enum_fmt_vid_overlay(struct file * file,void * priv,struct v4l2_fmtdesc * f)1075 int vidioc_enum_fmt_vid_overlay(struct file *file, void *priv,
1076 struct v4l2_fmtdesc *f)
1077 {
1078 struct vivid_dev *dev = video_drvdata(file);
1079 const struct vivid_fmt *fmt;
1080
1081 if (dev->multiplanar)
1082 return -ENOTTY;
1083
1084 if (f->index >= ARRAY_SIZE(formats_ovl))
1085 return -EINVAL;
1086
1087 fmt = &formats_ovl[f->index];
1088
1089 f->pixelformat = fmt->fourcc;
1090 return 0;
1091 }
1092
vidioc_g_fmt_vid_overlay(struct file * file,void * priv,struct v4l2_format * f)1093 int vidioc_g_fmt_vid_overlay(struct file *file, void *priv,
1094 struct v4l2_format *f)
1095 {
1096 struct vivid_dev *dev = video_drvdata(file);
1097 const struct v4l2_rect *compose = &dev->compose_cap;
1098 struct v4l2_window *win = &f->fmt.win;
1099 unsigned clipcount = win->clipcount;
1100
1101 if (dev->multiplanar)
1102 return -ENOTTY;
1103
1104 win->w.top = dev->overlay_cap_top;
1105 win->w.left = dev->overlay_cap_left;
1106 win->w.width = compose->width;
1107 win->w.height = compose->height;
1108 win->field = dev->overlay_cap_field;
1109 win->clipcount = dev->clipcount_cap;
1110 if (clipcount > dev->clipcount_cap)
1111 clipcount = dev->clipcount_cap;
1112 if (dev->bitmap_cap == NULL)
1113 win->bitmap = NULL;
1114 else if (win->bitmap) {
1115 if (copy_to_user(win->bitmap, dev->bitmap_cap,
1116 ((compose->width + 7) / 8) * compose->height))
1117 return -EFAULT;
1118 }
1119 if (clipcount && win->clips)
1120 memcpy(win->clips, dev->clips_cap,
1121 clipcount * sizeof(dev->clips_cap[0]));
1122 return 0;
1123 }
1124
vidioc_try_fmt_vid_overlay(struct file * file,void * priv,struct v4l2_format * f)1125 int vidioc_try_fmt_vid_overlay(struct file *file, void *priv,
1126 struct v4l2_format *f)
1127 {
1128 struct vivid_dev *dev = video_drvdata(file);
1129 const struct v4l2_rect *compose = &dev->compose_cap;
1130 struct v4l2_window *win = &f->fmt.win;
1131 int i, j;
1132
1133 if (dev->multiplanar)
1134 return -ENOTTY;
1135
1136 win->w.left = clamp_t(int, win->w.left,
1137 -dev->fb_cap.fmt.width, dev->fb_cap.fmt.width);
1138 win->w.top = clamp_t(int, win->w.top,
1139 -dev->fb_cap.fmt.height, dev->fb_cap.fmt.height);
1140 win->w.width = compose->width;
1141 win->w.height = compose->height;
1142 if (win->field != V4L2_FIELD_BOTTOM && win->field != V4L2_FIELD_TOP)
1143 win->field = V4L2_FIELD_ANY;
1144 win->chromakey = 0;
1145 win->global_alpha = 0;
1146 if (win->clipcount && !win->clips)
1147 win->clipcount = 0;
1148 if (win->clipcount > MAX_CLIPS)
1149 win->clipcount = MAX_CLIPS;
1150 if (win->clipcount) {
1151 memcpy(dev->try_clips_cap, win->clips,
1152 win->clipcount * sizeof(dev->clips_cap[0]));
1153 for (i = 0; i < win->clipcount; i++) {
1154 struct v4l2_rect *r = &dev->try_clips_cap[i].c;
1155
1156 r->top = clamp_t(s32, r->top, 0, dev->fb_cap.fmt.height - 1);
1157 r->height = clamp_t(s32, r->height, 1, dev->fb_cap.fmt.height - r->top);
1158 r->left = clamp_t(u32, r->left, 0, dev->fb_cap.fmt.width - 1);
1159 r->width = clamp_t(u32, r->width, 1, dev->fb_cap.fmt.width - r->left);
1160 }
1161 /*
1162 * Yeah, so sue me, it's an O(n^2) algorithm. But n is a small
1163 * number and it's typically a one-time deal.
1164 */
1165 for (i = 0; i < win->clipcount - 1; i++) {
1166 struct v4l2_rect *r1 = &dev->try_clips_cap[i].c;
1167
1168 for (j = i + 1; j < win->clipcount; j++) {
1169 struct v4l2_rect *r2 = &dev->try_clips_cap[j].c;
1170
1171 if (v4l2_rect_overlap(r1, r2))
1172 return -EINVAL;
1173 }
1174 }
1175 memcpy(win->clips, dev->try_clips_cap,
1176 win->clipcount * sizeof(dev->clips_cap[0]));
1177 }
1178 return 0;
1179 }
1180
vidioc_s_fmt_vid_overlay(struct file * file,void * priv,struct v4l2_format * f)1181 int vidioc_s_fmt_vid_overlay(struct file *file, void *priv,
1182 struct v4l2_format *f)
1183 {
1184 struct vivid_dev *dev = video_drvdata(file);
1185 const struct v4l2_rect *compose = &dev->compose_cap;
1186 struct v4l2_window *win = &f->fmt.win;
1187 int ret = vidioc_try_fmt_vid_overlay(file, priv, f);
1188 unsigned bitmap_size = ((compose->width + 7) / 8) * compose->height;
1189 unsigned clips_size = win->clipcount * sizeof(dev->clips_cap[0]);
1190 void *new_bitmap = NULL;
1191
1192 if (ret)
1193 return ret;
1194
1195 if (win->bitmap) {
1196 new_bitmap = vzalloc(bitmap_size);
1197
1198 if (new_bitmap == NULL)
1199 return -ENOMEM;
1200 if (copy_from_user(new_bitmap, win->bitmap, bitmap_size)) {
1201 vfree(new_bitmap);
1202 return -EFAULT;
1203 }
1204 }
1205
1206 dev->overlay_cap_top = win->w.top;
1207 dev->overlay_cap_left = win->w.left;
1208 dev->overlay_cap_field = win->field;
1209 vfree(dev->bitmap_cap);
1210 dev->bitmap_cap = new_bitmap;
1211 dev->clipcount_cap = win->clipcount;
1212 if (dev->clipcount_cap)
1213 memcpy(dev->clips_cap, dev->try_clips_cap, clips_size);
1214 return 0;
1215 }
1216
vivid_vid_cap_overlay(struct file * file,void * fh,unsigned i)1217 int vivid_vid_cap_overlay(struct file *file, void *fh, unsigned i)
1218 {
1219 struct vivid_dev *dev = video_drvdata(file);
1220
1221 if (dev->multiplanar)
1222 return -ENOTTY;
1223
1224 if (i && dev->fb_vbase_cap == NULL)
1225 return -EINVAL;
1226
1227 if (i && dev->fb_cap.fmt.pixelformat != dev->fmt_cap->fourcc) {
1228 dprintk(dev, 1, "mismatch between overlay and video capture pixelformats\n");
1229 return -EINVAL;
1230 }
1231
1232 if (dev->overlay_cap_owner && dev->overlay_cap_owner != fh)
1233 return -EBUSY;
1234 dev->overlay_cap_owner = i ? fh : NULL;
1235 return 0;
1236 }
1237
vivid_vid_cap_g_fbuf(struct file * file,void * fh,struct v4l2_framebuffer * a)1238 int vivid_vid_cap_g_fbuf(struct file *file, void *fh,
1239 struct v4l2_framebuffer *a)
1240 {
1241 struct vivid_dev *dev = video_drvdata(file);
1242
1243 if (dev->multiplanar)
1244 return -ENOTTY;
1245
1246 *a = dev->fb_cap;
1247 a->capability = V4L2_FBUF_CAP_BITMAP_CLIPPING |
1248 V4L2_FBUF_CAP_LIST_CLIPPING;
1249 a->flags = V4L2_FBUF_FLAG_PRIMARY;
1250 a->fmt.field = V4L2_FIELD_NONE;
1251 a->fmt.colorspace = V4L2_COLORSPACE_SRGB;
1252 a->fmt.priv = 0;
1253 return 0;
1254 }
1255
vivid_vid_cap_s_fbuf(struct file * file,void * fh,const struct v4l2_framebuffer * a)1256 int vivid_vid_cap_s_fbuf(struct file *file, void *fh,
1257 const struct v4l2_framebuffer *a)
1258 {
1259 struct vivid_dev *dev = video_drvdata(file);
1260 const struct vivid_fmt *fmt;
1261
1262 if (dev->multiplanar)
1263 return -ENOTTY;
1264
1265 if (!capable(CAP_SYS_ADMIN) && !capable(CAP_SYS_RAWIO))
1266 return -EPERM;
1267
1268 if (dev->overlay_cap_owner)
1269 return -EBUSY;
1270
1271 if (a->base == NULL) {
1272 dev->fb_cap.base = NULL;
1273 dev->fb_vbase_cap = NULL;
1274 return 0;
1275 }
1276
1277 if (a->fmt.width < 48 || a->fmt.height < 32)
1278 return -EINVAL;
1279 fmt = vivid_get_format(dev, a->fmt.pixelformat);
1280 if (!fmt || !fmt->can_do_overlay)
1281 return -EINVAL;
1282 if (a->fmt.bytesperline < (a->fmt.width * fmt->bit_depth[0]) / 8)
1283 return -EINVAL;
1284 if (a->fmt.bytesperline > a->fmt.sizeimage / a->fmt.height)
1285 return -EINVAL;
1286
1287 /*
1288 * Only support the framebuffer of one of the vivid instances.
1289 * Anything else is rejected.
1290 */
1291 if (!vivid_validate_fb(a))
1292 return -EINVAL;
1293
1294 dev->fb_vbase_cap = phys_to_virt((unsigned long)a->base);
1295 dev->fb_cap = *a;
1296 dev->overlay_cap_left = clamp_t(int, dev->overlay_cap_left,
1297 -dev->fb_cap.fmt.width, dev->fb_cap.fmt.width);
1298 dev->overlay_cap_top = clamp_t(int, dev->overlay_cap_top,
1299 -dev->fb_cap.fmt.height, dev->fb_cap.fmt.height);
1300 return 0;
1301 }
1302
1303 static const struct v4l2_audio vivid_audio_inputs[] = {
1304 { 0, "TV", V4L2_AUDCAP_STEREO },
1305 { 1, "Line-In", V4L2_AUDCAP_STEREO },
1306 };
1307
vidioc_enum_input(struct file * file,void * priv,struct v4l2_input * inp)1308 int vidioc_enum_input(struct file *file, void *priv,
1309 struct v4l2_input *inp)
1310 {
1311 struct vivid_dev *dev = video_drvdata(file);
1312
1313 if (inp->index >= dev->num_inputs)
1314 return -EINVAL;
1315
1316 inp->type = V4L2_INPUT_TYPE_CAMERA;
1317 switch (dev->input_type[inp->index]) {
1318 case WEBCAM:
1319 snprintf(inp->name, sizeof(inp->name), "Webcam %u",
1320 dev->input_name_counter[inp->index]);
1321 inp->capabilities = 0;
1322 break;
1323 case TV:
1324 snprintf(inp->name, sizeof(inp->name), "TV %u",
1325 dev->input_name_counter[inp->index]);
1326 inp->type = V4L2_INPUT_TYPE_TUNER;
1327 inp->std = V4L2_STD_ALL;
1328 if (dev->has_audio_inputs)
1329 inp->audioset = (1 << ARRAY_SIZE(vivid_audio_inputs)) - 1;
1330 inp->capabilities = V4L2_IN_CAP_STD;
1331 break;
1332 case SVID:
1333 snprintf(inp->name, sizeof(inp->name), "S-Video %u",
1334 dev->input_name_counter[inp->index]);
1335 inp->std = V4L2_STD_ALL;
1336 if (dev->has_audio_inputs)
1337 inp->audioset = (1 << ARRAY_SIZE(vivid_audio_inputs)) - 1;
1338 inp->capabilities = V4L2_IN_CAP_STD;
1339 break;
1340 case HDMI:
1341 snprintf(inp->name, sizeof(inp->name), "HDMI %u",
1342 dev->input_name_counter[inp->index]);
1343 inp->capabilities = V4L2_IN_CAP_DV_TIMINGS;
1344 if (dev->edid_blocks == 0 ||
1345 dev->dv_timings_signal_mode[dev->input] == NO_SIGNAL)
1346 inp->status |= V4L2_IN_ST_NO_SIGNAL;
1347 else if (dev->dv_timings_signal_mode[dev->input] == NO_LOCK ||
1348 dev->dv_timings_signal_mode[dev->input] == OUT_OF_RANGE)
1349 inp->status |= V4L2_IN_ST_NO_H_LOCK;
1350 break;
1351 }
1352 if (dev->sensor_hflip)
1353 inp->status |= V4L2_IN_ST_HFLIP;
1354 if (dev->sensor_vflip)
1355 inp->status |= V4L2_IN_ST_VFLIP;
1356 if (dev->input == inp->index && vivid_is_sdtv_cap(dev)) {
1357 if (dev->std_signal_mode[dev->input] == NO_SIGNAL) {
1358 inp->status |= V4L2_IN_ST_NO_SIGNAL;
1359 } else if (dev->std_signal_mode[dev->input] == NO_LOCK) {
1360 inp->status |= V4L2_IN_ST_NO_H_LOCK;
1361 } else if (vivid_is_tv_cap(dev)) {
1362 switch (tpg_g_quality(&dev->tpg)) {
1363 case TPG_QUAL_GRAY:
1364 inp->status |= V4L2_IN_ST_COLOR_KILL;
1365 break;
1366 case TPG_QUAL_NOISE:
1367 inp->status |= V4L2_IN_ST_NO_H_LOCK;
1368 break;
1369 default:
1370 break;
1371 }
1372 }
1373 }
1374 return 0;
1375 }
1376
vidioc_g_input(struct file * file,void * priv,unsigned * i)1377 int vidioc_g_input(struct file *file, void *priv, unsigned *i)
1378 {
1379 struct vivid_dev *dev = video_drvdata(file);
1380
1381 *i = dev->input;
1382 return 0;
1383 }
1384
vidioc_s_input(struct file * file,void * priv,unsigned i)1385 int vidioc_s_input(struct file *file, void *priv, unsigned i)
1386 {
1387 struct vivid_dev *dev = video_drvdata(file);
1388 struct v4l2_bt_timings *bt = &dev->dv_timings_cap[dev->input].bt;
1389 unsigned brightness;
1390
1391 if (i >= dev->num_inputs)
1392 return -EINVAL;
1393
1394 if (i == dev->input)
1395 return 0;
1396
1397 if (vb2_is_busy(&dev->vb_vid_cap_q) ||
1398 vb2_is_busy(&dev->vb_vbi_cap_q) ||
1399 vb2_is_busy(&dev->vb_meta_cap_q))
1400 return -EBUSY;
1401
1402 dev->input = i;
1403 dev->vid_cap_dev.tvnorms = 0;
1404 if (dev->input_type[i] == TV || dev->input_type[i] == SVID) {
1405 dev->tv_audio_input = (dev->input_type[i] == TV) ? 0 : 1;
1406 dev->vid_cap_dev.tvnorms = V4L2_STD_ALL;
1407 }
1408 dev->vbi_cap_dev.tvnorms = dev->vid_cap_dev.tvnorms;
1409 dev->meta_cap_dev.tvnorms = dev->vid_cap_dev.tvnorms;
1410 vivid_update_format_cap(dev, false);
1411
1412 if (dev->colorspace) {
1413 switch (dev->input_type[i]) {
1414 case WEBCAM:
1415 v4l2_ctrl_s_ctrl(dev->colorspace, VIVID_CS_SRGB);
1416 break;
1417 case TV:
1418 case SVID:
1419 v4l2_ctrl_s_ctrl(dev->colorspace, VIVID_CS_170M);
1420 break;
1421 case HDMI:
1422 if (bt->flags & V4L2_DV_FL_IS_CE_VIDEO) {
1423 if (dev->src_rect.width == 720 && dev->src_rect.height <= 576)
1424 v4l2_ctrl_s_ctrl(dev->colorspace, VIVID_CS_170M);
1425 else
1426 v4l2_ctrl_s_ctrl(dev->colorspace, VIVID_CS_709);
1427 } else {
1428 v4l2_ctrl_s_ctrl(dev->colorspace, VIVID_CS_SRGB);
1429 }
1430 break;
1431 }
1432 }
1433
1434 /*
1435 * Modify the brightness range depending on the input.
1436 * This makes it easy to use vivid to test if applications can
1437 * handle control range modifications and is also how this is
1438 * typically used in practice as different inputs may be hooked
1439 * up to different receivers with different control ranges.
1440 */
1441 brightness = 128 * i + dev->input_brightness[i];
1442 v4l2_ctrl_modify_range(dev->brightness,
1443 128 * i, 255 + 128 * i, 1, 128 + 128 * i);
1444 v4l2_ctrl_s_ctrl(dev->brightness, brightness);
1445
1446 /* Restore per-input states. */
1447 v4l2_ctrl_activate(dev->ctrl_dv_timings_signal_mode,
1448 vivid_is_hdmi_cap(dev));
1449 v4l2_ctrl_activate(dev->ctrl_dv_timings, vivid_is_hdmi_cap(dev) &&
1450 dev->dv_timings_signal_mode[dev->input] ==
1451 SELECTED_DV_TIMINGS);
1452 v4l2_ctrl_activate(dev->ctrl_std_signal_mode, vivid_is_sdtv_cap(dev));
1453 v4l2_ctrl_activate(dev->ctrl_standard, vivid_is_sdtv_cap(dev) &&
1454 dev->std_signal_mode[dev->input]);
1455
1456 if (vivid_is_hdmi_cap(dev)) {
1457 v4l2_ctrl_s_ctrl(dev->ctrl_dv_timings_signal_mode,
1458 dev->dv_timings_signal_mode[dev->input]);
1459 v4l2_ctrl_s_ctrl(dev->ctrl_dv_timings,
1460 dev->query_dv_timings[dev->input]);
1461 } else if (vivid_is_sdtv_cap(dev)) {
1462 v4l2_ctrl_s_ctrl(dev->ctrl_std_signal_mode,
1463 dev->std_signal_mode[dev->input]);
1464 v4l2_ctrl_s_ctrl(dev->ctrl_standard,
1465 dev->std_signal_mode[dev->input]);
1466 }
1467
1468 return 0;
1469 }
1470
vidioc_enumaudio(struct file * file,void * fh,struct v4l2_audio * vin)1471 int vidioc_enumaudio(struct file *file, void *fh, struct v4l2_audio *vin)
1472 {
1473 if (vin->index >= ARRAY_SIZE(vivid_audio_inputs))
1474 return -EINVAL;
1475 *vin = vivid_audio_inputs[vin->index];
1476 return 0;
1477 }
1478
vidioc_g_audio(struct file * file,void * fh,struct v4l2_audio * vin)1479 int vidioc_g_audio(struct file *file, void *fh, struct v4l2_audio *vin)
1480 {
1481 struct vivid_dev *dev = video_drvdata(file);
1482
1483 if (!vivid_is_sdtv_cap(dev))
1484 return -EINVAL;
1485 *vin = vivid_audio_inputs[dev->tv_audio_input];
1486 return 0;
1487 }
1488
vidioc_s_audio(struct file * file,void * fh,const struct v4l2_audio * vin)1489 int vidioc_s_audio(struct file *file, void *fh, const struct v4l2_audio *vin)
1490 {
1491 struct vivid_dev *dev = video_drvdata(file);
1492
1493 if (!vivid_is_sdtv_cap(dev))
1494 return -EINVAL;
1495 if (vin->index >= ARRAY_SIZE(vivid_audio_inputs))
1496 return -EINVAL;
1497 dev->tv_audio_input = vin->index;
1498 return 0;
1499 }
1500
vivid_video_g_frequency(struct file * file,void * fh,struct v4l2_frequency * vf)1501 int vivid_video_g_frequency(struct file *file, void *fh, struct v4l2_frequency *vf)
1502 {
1503 struct vivid_dev *dev = video_drvdata(file);
1504
1505 if (vf->tuner != 0)
1506 return -EINVAL;
1507 vf->frequency = dev->tv_freq;
1508 return 0;
1509 }
1510
vivid_video_s_frequency(struct file * file,void * fh,const struct v4l2_frequency * vf)1511 int vivid_video_s_frequency(struct file *file, void *fh, const struct v4l2_frequency *vf)
1512 {
1513 struct vivid_dev *dev = video_drvdata(file);
1514
1515 if (vf->tuner != 0)
1516 return -EINVAL;
1517 dev->tv_freq = clamp_t(unsigned, vf->frequency, MIN_TV_FREQ, MAX_TV_FREQ);
1518 if (vivid_is_tv_cap(dev))
1519 vivid_update_quality(dev);
1520 return 0;
1521 }
1522
vivid_video_s_tuner(struct file * file,void * fh,const struct v4l2_tuner * vt)1523 int vivid_video_s_tuner(struct file *file, void *fh, const struct v4l2_tuner *vt)
1524 {
1525 struct vivid_dev *dev = video_drvdata(file);
1526
1527 if (vt->index != 0)
1528 return -EINVAL;
1529 if (vt->audmode > V4L2_TUNER_MODE_LANG1_LANG2)
1530 return -EINVAL;
1531 dev->tv_audmode = vt->audmode;
1532 return 0;
1533 }
1534
vivid_video_g_tuner(struct file * file,void * fh,struct v4l2_tuner * vt)1535 int vivid_video_g_tuner(struct file *file, void *fh, struct v4l2_tuner *vt)
1536 {
1537 struct vivid_dev *dev = video_drvdata(file);
1538 enum tpg_quality qual;
1539
1540 if (vt->index != 0)
1541 return -EINVAL;
1542
1543 vt->capability = V4L2_TUNER_CAP_NORM | V4L2_TUNER_CAP_STEREO |
1544 V4L2_TUNER_CAP_LANG1 | V4L2_TUNER_CAP_LANG2;
1545 vt->audmode = dev->tv_audmode;
1546 vt->rangelow = MIN_TV_FREQ;
1547 vt->rangehigh = MAX_TV_FREQ;
1548 qual = vivid_get_quality(dev, &vt->afc);
1549 if (qual == TPG_QUAL_COLOR)
1550 vt->signal = 0xffff;
1551 else if (qual == TPG_QUAL_GRAY)
1552 vt->signal = 0x8000;
1553 else
1554 vt->signal = 0;
1555 if (qual == TPG_QUAL_NOISE) {
1556 vt->rxsubchans = 0;
1557 } else if (qual == TPG_QUAL_GRAY) {
1558 vt->rxsubchans = V4L2_TUNER_SUB_MONO;
1559 } else {
1560 unsigned int channel_nr = dev->tv_freq / (6 * 16);
1561 unsigned int options =
1562 (dev->std_cap[dev->input] & V4L2_STD_NTSC_M) ? 4 : 3;
1563
1564 switch (channel_nr % options) {
1565 case 0:
1566 vt->rxsubchans = V4L2_TUNER_SUB_MONO;
1567 break;
1568 case 1:
1569 vt->rxsubchans = V4L2_TUNER_SUB_STEREO;
1570 break;
1571 case 2:
1572 if (dev->std_cap[dev->input] & V4L2_STD_NTSC_M)
1573 vt->rxsubchans = V4L2_TUNER_SUB_MONO | V4L2_TUNER_SUB_SAP;
1574 else
1575 vt->rxsubchans = V4L2_TUNER_SUB_LANG1 | V4L2_TUNER_SUB_LANG2;
1576 break;
1577 case 3:
1578 vt->rxsubchans = V4L2_TUNER_SUB_STEREO | V4L2_TUNER_SUB_SAP;
1579 break;
1580 }
1581 }
1582 strscpy(vt->name, "TV Tuner", sizeof(vt->name));
1583 return 0;
1584 }
1585
1586 /* Must remain in sync with the vivid_ctrl_standard_strings array */
1587 const v4l2_std_id vivid_standard[] = {
1588 V4L2_STD_NTSC_M,
1589 V4L2_STD_NTSC_M_JP,
1590 V4L2_STD_NTSC_M_KR,
1591 V4L2_STD_NTSC_443,
1592 V4L2_STD_PAL_BG | V4L2_STD_PAL_H,
1593 V4L2_STD_PAL_I,
1594 V4L2_STD_PAL_DK,
1595 V4L2_STD_PAL_M,
1596 V4L2_STD_PAL_N,
1597 V4L2_STD_PAL_Nc,
1598 V4L2_STD_PAL_60,
1599 V4L2_STD_SECAM_B | V4L2_STD_SECAM_G | V4L2_STD_SECAM_H,
1600 V4L2_STD_SECAM_DK,
1601 V4L2_STD_SECAM_L,
1602 V4L2_STD_SECAM_LC,
1603 V4L2_STD_UNKNOWN
1604 };
1605
1606 /* Must remain in sync with the vivid_standard array */
1607 const char * const vivid_ctrl_standard_strings[] = {
1608 "NTSC-M",
1609 "NTSC-M-JP",
1610 "NTSC-M-KR",
1611 "NTSC-443",
1612 "PAL-BGH",
1613 "PAL-I",
1614 "PAL-DK",
1615 "PAL-M",
1616 "PAL-N",
1617 "PAL-Nc",
1618 "PAL-60",
1619 "SECAM-BGH",
1620 "SECAM-DK",
1621 "SECAM-L",
1622 "SECAM-Lc",
1623 NULL,
1624 };
1625
vidioc_querystd(struct file * file,void * priv,v4l2_std_id * id)1626 int vidioc_querystd(struct file *file, void *priv, v4l2_std_id *id)
1627 {
1628 struct vivid_dev *dev = video_drvdata(file);
1629 unsigned int last = dev->query_std_last[dev->input];
1630
1631 if (!vivid_is_sdtv_cap(dev))
1632 return -ENODATA;
1633 if (dev->std_signal_mode[dev->input] == NO_SIGNAL ||
1634 dev->std_signal_mode[dev->input] == NO_LOCK) {
1635 *id = V4L2_STD_UNKNOWN;
1636 return 0;
1637 }
1638 if (vivid_is_tv_cap(dev) && tpg_g_quality(&dev->tpg) == TPG_QUAL_NOISE) {
1639 *id = V4L2_STD_UNKNOWN;
1640 } else if (dev->std_signal_mode[dev->input] == CURRENT_STD) {
1641 *id = dev->std_cap[dev->input];
1642 } else if (dev->std_signal_mode[dev->input] == SELECTED_STD) {
1643 *id = dev->query_std[dev->input];
1644 } else {
1645 *id = vivid_standard[last];
1646 dev->query_std_last[dev->input] =
1647 (last + 1) % ARRAY_SIZE(vivid_standard);
1648 }
1649
1650 return 0;
1651 }
1652
vivid_vid_cap_s_std(struct file * file,void * priv,v4l2_std_id id)1653 int vivid_vid_cap_s_std(struct file *file, void *priv, v4l2_std_id id)
1654 {
1655 struct vivid_dev *dev = video_drvdata(file);
1656
1657 if (!vivid_is_sdtv_cap(dev))
1658 return -ENODATA;
1659 if (dev->std_cap[dev->input] == id)
1660 return 0;
1661 if (vb2_is_busy(&dev->vb_vid_cap_q) || vb2_is_busy(&dev->vb_vbi_cap_q))
1662 return -EBUSY;
1663 dev->std_cap[dev->input] = id;
1664 vivid_update_format_cap(dev, false);
1665 return 0;
1666 }
1667
find_aspect_ratio(u32 width,u32 height,u32 * num,u32 * denom)1668 static void find_aspect_ratio(u32 width, u32 height,
1669 u32 *num, u32 *denom)
1670 {
1671 if (!(height % 3) && ((height * 4 / 3) == width)) {
1672 *num = 4;
1673 *denom = 3;
1674 } else if (!(height % 9) && ((height * 16 / 9) == width)) {
1675 *num = 16;
1676 *denom = 9;
1677 } else if (!(height % 10) && ((height * 16 / 10) == width)) {
1678 *num = 16;
1679 *denom = 10;
1680 } else if (!(height % 4) && ((height * 5 / 4) == width)) {
1681 *num = 5;
1682 *denom = 4;
1683 } else if (!(height % 9) && ((height * 15 / 9) == width)) {
1684 *num = 15;
1685 *denom = 9;
1686 } else { /* default to 16:9 */
1687 *num = 16;
1688 *denom = 9;
1689 }
1690 }
1691
valid_cvt_gtf_timings(struct v4l2_dv_timings * timings)1692 static bool valid_cvt_gtf_timings(struct v4l2_dv_timings *timings)
1693 {
1694 struct v4l2_bt_timings *bt = &timings->bt;
1695 u32 total_h_pixel;
1696 u32 total_v_lines;
1697 u32 h_freq;
1698
1699 if (!v4l2_valid_dv_timings(timings, &vivid_dv_timings_cap,
1700 NULL, NULL))
1701 return false;
1702
1703 total_h_pixel = V4L2_DV_BT_FRAME_WIDTH(bt);
1704 total_v_lines = V4L2_DV_BT_FRAME_HEIGHT(bt);
1705
1706 h_freq = (u32)bt->pixelclock / total_h_pixel;
1707
1708 if (bt->standards == 0 || (bt->standards & V4L2_DV_BT_STD_CVT)) {
1709 if (v4l2_detect_cvt(total_v_lines, h_freq, bt->vsync, bt->width,
1710 bt->polarities, bt->interlaced, timings))
1711 return true;
1712 }
1713
1714 if (bt->standards == 0 || (bt->standards & V4L2_DV_BT_STD_GTF)) {
1715 struct v4l2_fract aspect_ratio;
1716
1717 find_aspect_ratio(bt->width, bt->height,
1718 &aspect_ratio.numerator,
1719 &aspect_ratio.denominator);
1720 if (v4l2_detect_gtf(total_v_lines, h_freq, bt->vsync,
1721 bt->polarities, bt->interlaced,
1722 aspect_ratio, timings))
1723 return true;
1724 }
1725 return false;
1726 }
1727
vivid_vid_cap_s_dv_timings(struct file * file,void * _fh,struct v4l2_dv_timings * timings)1728 int vivid_vid_cap_s_dv_timings(struct file *file, void *_fh,
1729 struct v4l2_dv_timings *timings)
1730 {
1731 struct vivid_dev *dev = video_drvdata(file);
1732
1733 if (!vivid_is_hdmi_cap(dev))
1734 return -ENODATA;
1735 if (!v4l2_find_dv_timings_cap(timings, &vivid_dv_timings_cap,
1736 0, NULL, NULL) &&
1737 !valid_cvt_gtf_timings(timings))
1738 return -EINVAL;
1739
1740 if (v4l2_match_dv_timings(timings, &dev->dv_timings_cap[dev->input],
1741 0, false))
1742 return 0;
1743 if (vb2_is_busy(&dev->vb_vid_cap_q))
1744 return -EBUSY;
1745
1746 dev->dv_timings_cap[dev->input] = *timings;
1747 vivid_update_format_cap(dev, false);
1748 return 0;
1749 }
1750
vidioc_query_dv_timings(struct file * file,void * _fh,struct v4l2_dv_timings * timings)1751 int vidioc_query_dv_timings(struct file *file, void *_fh,
1752 struct v4l2_dv_timings *timings)
1753 {
1754 struct vivid_dev *dev = video_drvdata(file);
1755 unsigned int input = dev->input;
1756 unsigned int last = dev->query_dv_timings_last[input];
1757
1758 if (!vivid_is_hdmi_cap(dev))
1759 return -ENODATA;
1760 if (dev->dv_timings_signal_mode[input] == NO_SIGNAL ||
1761 dev->edid_blocks == 0)
1762 return -ENOLINK;
1763 if (dev->dv_timings_signal_mode[input] == NO_LOCK)
1764 return -ENOLCK;
1765 if (dev->dv_timings_signal_mode[input] == OUT_OF_RANGE) {
1766 timings->bt.pixelclock = vivid_dv_timings_cap.bt.max_pixelclock * 2;
1767 return -ERANGE;
1768 }
1769 if (dev->dv_timings_signal_mode[input] == CURRENT_DV_TIMINGS) {
1770 *timings = dev->dv_timings_cap[input];
1771 } else if (dev->dv_timings_signal_mode[input] ==
1772 SELECTED_DV_TIMINGS) {
1773 *timings =
1774 v4l2_dv_timings_presets[dev->query_dv_timings[input]];
1775 } else {
1776 *timings =
1777 v4l2_dv_timings_presets[last];
1778 dev->query_dv_timings_last[input] =
1779 (last + 1) % dev->query_dv_timings_size;
1780 }
1781 return 0;
1782 }
1783
vidioc_s_edid(struct file * file,void * _fh,struct v4l2_edid * edid)1784 int vidioc_s_edid(struct file *file, void *_fh,
1785 struct v4l2_edid *edid)
1786 {
1787 struct vivid_dev *dev = video_drvdata(file);
1788 u16 phys_addr;
1789 u32 display_present = 0;
1790 unsigned int i, j;
1791 int ret;
1792
1793 memset(edid->reserved, 0, sizeof(edid->reserved));
1794 if (edid->pad >= dev->num_inputs)
1795 return -EINVAL;
1796 if (dev->input_type[edid->pad] != HDMI || edid->start_block)
1797 return -EINVAL;
1798 if (edid->blocks == 0) {
1799 dev->edid_blocks = 0;
1800 v4l2_ctrl_s_ctrl(dev->ctrl_tx_edid_present, 0);
1801 v4l2_ctrl_s_ctrl(dev->ctrl_tx_hotplug, 0);
1802 phys_addr = CEC_PHYS_ADDR_INVALID;
1803 goto set_phys_addr;
1804 }
1805 if (edid->blocks > dev->edid_max_blocks) {
1806 edid->blocks = dev->edid_max_blocks;
1807 return -E2BIG;
1808 }
1809 phys_addr = cec_get_edid_phys_addr(edid->edid, edid->blocks * 128, NULL);
1810 ret = v4l2_phys_addr_validate(phys_addr, &phys_addr, NULL);
1811 if (ret)
1812 return ret;
1813
1814 if (vb2_is_busy(&dev->vb_vid_cap_q))
1815 return -EBUSY;
1816
1817 dev->edid_blocks = edid->blocks;
1818 memcpy(dev->edid, edid->edid, edid->blocks * 128);
1819
1820 for (i = 0, j = 0; i < dev->num_outputs; i++)
1821 if (dev->output_type[i] == HDMI)
1822 display_present |=
1823 dev->display_present[i] << j++;
1824
1825 v4l2_ctrl_s_ctrl(dev->ctrl_tx_edid_present, display_present);
1826 v4l2_ctrl_s_ctrl(dev->ctrl_tx_hotplug, display_present);
1827
1828 set_phys_addr:
1829 /* TODO: a proper hotplug detect cycle should be emulated here */
1830 cec_s_phys_addr(dev->cec_rx_adap, phys_addr, false);
1831
1832 for (i = 0; i < MAX_OUTPUTS && dev->cec_tx_adap[i]; i++)
1833 cec_s_phys_addr(dev->cec_tx_adap[i],
1834 dev->display_present[i] ?
1835 v4l2_phys_addr_for_input(phys_addr, i + 1) :
1836 CEC_PHYS_ADDR_INVALID,
1837 false);
1838 return 0;
1839 }
1840
vidioc_enum_framesizes(struct file * file,void * fh,struct v4l2_frmsizeenum * fsize)1841 int vidioc_enum_framesizes(struct file *file, void *fh,
1842 struct v4l2_frmsizeenum *fsize)
1843 {
1844 struct vivid_dev *dev = video_drvdata(file);
1845
1846 if (!vivid_is_webcam(dev) && !dev->has_scaler_cap)
1847 return -EINVAL;
1848 if (vivid_get_format(dev, fsize->pixel_format) == NULL)
1849 return -EINVAL;
1850 if (vivid_is_webcam(dev)) {
1851 if (fsize->index >= ARRAY_SIZE(webcam_sizes))
1852 return -EINVAL;
1853 fsize->type = V4L2_FRMSIZE_TYPE_DISCRETE;
1854 fsize->discrete = webcam_sizes[fsize->index];
1855 return 0;
1856 }
1857 if (fsize->index)
1858 return -EINVAL;
1859 fsize->type = V4L2_FRMSIZE_TYPE_STEPWISE;
1860 fsize->stepwise.min_width = MIN_WIDTH;
1861 fsize->stepwise.max_width = MAX_WIDTH * MAX_ZOOM;
1862 fsize->stepwise.step_width = 2;
1863 fsize->stepwise.min_height = MIN_HEIGHT;
1864 fsize->stepwise.max_height = MAX_HEIGHT * MAX_ZOOM;
1865 fsize->stepwise.step_height = 2;
1866 return 0;
1867 }
1868
1869 /* timeperframe is arbitrary and continuous */
vidioc_enum_frameintervals(struct file * file,void * priv,struct v4l2_frmivalenum * fival)1870 int vidioc_enum_frameintervals(struct file *file, void *priv,
1871 struct v4l2_frmivalenum *fival)
1872 {
1873 struct vivid_dev *dev = video_drvdata(file);
1874 const struct vivid_fmt *fmt;
1875 int i;
1876
1877 fmt = vivid_get_format(dev, fival->pixel_format);
1878 if (!fmt)
1879 return -EINVAL;
1880
1881 if (!vivid_is_webcam(dev)) {
1882 if (fival->index)
1883 return -EINVAL;
1884 if (fival->width < MIN_WIDTH || fival->width > MAX_WIDTH * MAX_ZOOM)
1885 return -EINVAL;
1886 if (fival->height < MIN_HEIGHT || fival->height > MAX_HEIGHT * MAX_ZOOM)
1887 return -EINVAL;
1888 fival->type = V4L2_FRMIVAL_TYPE_DISCRETE;
1889 fival->discrete = dev->timeperframe_vid_cap;
1890 return 0;
1891 }
1892
1893 for (i = 0; i < ARRAY_SIZE(webcam_sizes); i++)
1894 if (fival->width == webcam_sizes[i].width &&
1895 fival->height == webcam_sizes[i].height)
1896 break;
1897 if (i == ARRAY_SIZE(webcam_sizes))
1898 return -EINVAL;
1899 if (fival->index >= 2 * (VIVID_WEBCAM_SIZES - i))
1900 return -EINVAL;
1901 fival->type = V4L2_FRMIVAL_TYPE_DISCRETE;
1902 fival->discrete = webcam_intervals[fival->index];
1903 return 0;
1904 }
1905
vivid_vid_cap_g_parm(struct file * file,void * priv,struct v4l2_streamparm * parm)1906 int vivid_vid_cap_g_parm(struct file *file, void *priv,
1907 struct v4l2_streamparm *parm)
1908 {
1909 struct vivid_dev *dev = video_drvdata(file);
1910
1911 if (parm->type != (dev->multiplanar ?
1912 V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE :
1913 V4L2_BUF_TYPE_VIDEO_CAPTURE))
1914 return -EINVAL;
1915
1916 parm->parm.capture.capability = V4L2_CAP_TIMEPERFRAME;
1917 parm->parm.capture.timeperframe = dev->timeperframe_vid_cap;
1918 parm->parm.capture.readbuffers = 1;
1919 return 0;
1920 }
1921
vivid_vid_cap_s_parm(struct file * file,void * priv,struct v4l2_streamparm * parm)1922 int vivid_vid_cap_s_parm(struct file *file, void *priv,
1923 struct v4l2_streamparm *parm)
1924 {
1925 struct vivid_dev *dev = video_drvdata(file);
1926 unsigned ival_sz = 2 * (VIVID_WEBCAM_SIZES - dev->webcam_size_idx);
1927 struct v4l2_fract tpf;
1928 unsigned i;
1929
1930 if (parm->type != (dev->multiplanar ?
1931 V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE :
1932 V4L2_BUF_TYPE_VIDEO_CAPTURE))
1933 return -EINVAL;
1934 if (!vivid_is_webcam(dev))
1935 return vivid_vid_cap_g_parm(file, priv, parm);
1936
1937 tpf = parm->parm.capture.timeperframe;
1938
1939 if (tpf.denominator == 0)
1940 tpf = webcam_intervals[ival_sz - 1];
1941 for (i = 0; i < ival_sz; i++)
1942 if (V4L2_FRACT_COMPARE(tpf, >=, webcam_intervals[i]))
1943 break;
1944 if (i == ival_sz)
1945 i = ival_sz - 1;
1946 dev->webcam_ival_idx = i;
1947 tpf = webcam_intervals[dev->webcam_ival_idx];
1948
1949 /* resync the thread's timings */
1950 dev->cap_seq_resync = true;
1951 dev->timeperframe_vid_cap = tpf;
1952 parm->parm.capture.capability = V4L2_CAP_TIMEPERFRAME;
1953 parm->parm.capture.timeperframe = tpf;
1954 parm->parm.capture.readbuffers = 1;
1955 return 0;
1956 }
1957