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treewide: remove redundant IS_ERR() before error code check
[linux/fpc-iii.git] / drivers / media / platform / vivid / vivid-vid-cap.c
blobe94beef008c8e620cc27f5114ef32d6bb31526c3
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
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
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
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
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
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 */
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
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 */
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 */
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
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
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 */
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 dev->compose_cap = dev->crop_cap;
456 if (V4L2_FIELD_HAS_T_OR_B(dev->field_cap))
457 dev->compose_cap.height /= 2;
458 dev->fmt_cap_rect = dev->compose_cap;
459 tpg_s_video_aspect(&dev->tpg, vivid_get_video_aspect(dev));
460 tpg_s_pixel_aspect(&dev->tpg, vivid_get_pixel_aspect(dev));
461 tpg_update_mv_step(&dev->tpg);
462 }
463
464 /* Map the field to something that is valid for the current input */
465 static enum v4l2_field vivid_field_cap(struct vivid_dev *dev, enum v4l2_field field)
466 {
467 if (vivid_is_sdtv_cap(dev)) {
468 switch (field) {
469 case V4L2_FIELD_INTERLACED_TB:
470 case V4L2_FIELD_INTERLACED_BT:
471 case V4L2_FIELD_SEQ_TB:
472 case V4L2_FIELD_SEQ_BT:
473 case V4L2_FIELD_TOP:
474 case V4L2_FIELD_BOTTOM:
475 case V4L2_FIELD_ALTERNATE:
476 return field;
477 case V4L2_FIELD_INTERLACED:
478 default:
479 return V4L2_FIELD_INTERLACED;
480 }
481 }
482 if (vivid_is_hdmi_cap(dev))
483 return dev->dv_timings_cap[dev->input].bt.interlaced ?
484 V4L2_FIELD_ALTERNATE : V4L2_FIELD_NONE;
485 return V4L2_FIELD_NONE;
486 }
487
488 static unsigned vivid_colorspace_cap(struct vivid_dev *dev)
489 {
490 if (!dev->loop_video || vivid_is_webcam(dev) || vivid_is_tv_cap(dev))
491 return tpg_g_colorspace(&dev->tpg);
492 return dev->colorspace_out;
493 }
494
495 static unsigned vivid_xfer_func_cap(struct vivid_dev *dev)
496 {
497 if (!dev->loop_video || vivid_is_webcam(dev) || vivid_is_tv_cap(dev))
498 return tpg_g_xfer_func(&dev->tpg);
499 return dev->xfer_func_out;
500 }
501
502 static unsigned vivid_ycbcr_enc_cap(struct vivid_dev *dev)
503 {
504 if (!dev->loop_video || vivid_is_webcam(dev) || vivid_is_tv_cap(dev))
505 return tpg_g_ycbcr_enc(&dev->tpg);
506 return dev->ycbcr_enc_out;
507 }
508
509 static unsigned int vivid_hsv_enc_cap(struct vivid_dev *dev)
510 {
511 if (!dev->loop_video || vivid_is_webcam(dev) || vivid_is_tv_cap(dev))
512 return tpg_g_hsv_enc(&dev->tpg);
513 return dev->hsv_enc_out;
514 }
515
516 static unsigned vivid_quantization_cap(struct vivid_dev *dev)
517 {
518 if (!dev->loop_video || vivid_is_webcam(dev) || vivid_is_tv_cap(dev))
519 return tpg_g_quantization(&dev->tpg);
520 return dev->quantization_out;
521 }
522
523 int vivid_g_fmt_vid_cap(struct file *file, void *priv,
524 struct v4l2_format *f)
525 {
526 struct vivid_dev *dev = video_drvdata(file);
527 struct v4l2_pix_format_mplane *mp = &f->fmt.pix_mp;
528 unsigned p;
529
530 mp->width = dev->fmt_cap_rect.width;
531 mp->height = dev->fmt_cap_rect.height;
532 mp->field = dev->field_cap;
533 mp->pixelformat = dev->fmt_cap->fourcc;
534 mp->colorspace = vivid_colorspace_cap(dev);
535 mp->xfer_func = vivid_xfer_func_cap(dev);
536 if (dev->fmt_cap->color_enc == TGP_COLOR_ENC_HSV)
537 mp->hsv_enc = vivid_hsv_enc_cap(dev);
538 else
539 mp->ycbcr_enc = vivid_ycbcr_enc_cap(dev);
540 mp->quantization = vivid_quantization_cap(dev);
541 mp->num_planes = dev->fmt_cap->buffers;
542 for (p = 0; p < mp->num_planes; p++) {
543 mp->plane_fmt[p].bytesperline = tpg_g_bytesperline(&dev->tpg, p);
544 mp->plane_fmt[p].sizeimage =
545 (tpg_g_line_width(&dev->tpg, p) * mp->height) /
546 dev->fmt_cap->vdownsampling[p] +
547 dev->fmt_cap->data_offset[p];
548 }
549 return 0;
550 }
551
552 int vivid_try_fmt_vid_cap(struct file *file, void *priv,
553 struct v4l2_format *f)
554 {
555 struct v4l2_pix_format_mplane *mp = &f->fmt.pix_mp;
556 struct v4l2_plane_pix_format *pfmt = mp->plane_fmt;
557 struct vivid_dev *dev = video_drvdata(file);
558 const struct vivid_fmt *fmt;
559 unsigned bytesperline, max_bpl;
560 unsigned factor = 1;
561 unsigned w, h;
562 unsigned p;
563
564 fmt = vivid_get_format(dev, mp->pixelformat);
565 if (!fmt) {
566 dprintk(dev, 1, "Fourcc format (0x%08x) unknown.\n",
567 mp->pixelformat);
568 mp->pixelformat = V4L2_PIX_FMT_YUYV;
569 fmt = vivid_get_format(dev, mp->pixelformat);
570 }
571
572 mp->field = vivid_field_cap(dev, mp->field);
573 if (vivid_is_webcam(dev)) {
574 const struct v4l2_frmsize_discrete *sz =
575 v4l2_find_nearest_size(webcam_sizes,
576 VIVID_WEBCAM_SIZES, width,
577 height, mp->width, mp->height);
578
579 w = sz->width;
580 h = sz->height;
581 } else if (vivid_is_sdtv_cap(dev)) {
582 w = 720;
583 h = (dev->std_cap[dev->input] & V4L2_STD_525_60) ? 480 : 576;
584 } else {
585 w = dev->src_rect.width;
586 h = dev->src_rect.height;
587 }
588 if (V4L2_FIELD_HAS_T_OR_B(mp->field))
589 factor = 2;
590 if (vivid_is_webcam(dev) ||
591 (!dev->has_scaler_cap && !dev->has_crop_cap && !dev->has_compose_cap)) {
592 mp->width = w;
593 mp->height = h / factor;
594 } else {
595 struct v4l2_rect r = { 0, 0, mp->width, mp->height * factor };
596
597 v4l2_rect_set_min_size(&r, &vivid_min_rect);
598 v4l2_rect_set_max_size(&r, &vivid_max_rect);
599 if (dev->has_scaler_cap && !dev->has_compose_cap) {
600 struct v4l2_rect max_r = { 0, 0, MAX_ZOOM * w, MAX_ZOOM * h };
601
602 v4l2_rect_set_max_size(&r, &max_r);
603 } else if (!dev->has_scaler_cap && dev->has_crop_cap && !dev->has_compose_cap) {
604 v4l2_rect_set_max_size(&r, &dev->src_rect);
605 } else if (!dev->has_scaler_cap && !dev->has_crop_cap) {
606 v4l2_rect_set_min_size(&r, &dev->src_rect);
607 }
608 mp->width = r.width;
609 mp->height = r.height / factor;
610 }
611
612 /* This driver supports custom bytesperline values */
613
614 mp->num_planes = fmt->buffers;
615 for (p = 0; p < fmt->buffers; p++) {
616 /* Calculate the minimum supported bytesperline value */
617 bytesperline = (mp->width * fmt->bit_depth[p]) >> 3;
618 /* Calculate the maximum supported bytesperline value */
619 max_bpl = (MAX_ZOOM * MAX_WIDTH * fmt->bit_depth[p]) >> 3;
620
621 if (pfmt[p].bytesperline > max_bpl)
622 pfmt[p].bytesperline = max_bpl;
623 if (pfmt[p].bytesperline < bytesperline)
624 pfmt[p].bytesperline = bytesperline;
625
626 pfmt[p].sizeimage = (pfmt[p].bytesperline * mp->height) /
627 fmt->vdownsampling[p] + fmt->data_offset[p];
628
629 memset(pfmt[p].reserved, 0, sizeof(pfmt[p].reserved));
630 }
631 for (p = fmt->buffers; p < fmt->planes; p++)
632 pfmt[0].sizeimage += (pfmt[0].bytesperline * mp->height *
633 (fmt->bit_depth[p] / fmt->vdownsampling[p])) /
634 (fmt->bit_depth[0] / fmt->vdownsampling[0]);
635
636 mp->colorspace = vivid_colorspace_cap(dev);
637 if (fmt->color_enc == TGP_COLOR_ENC_HSV)
638 mp->hsv_enc = vivid_hsv_enc_cap(dev);
639 else
640 mp->ycbcr_enc = vivid_ycbcr_enc_cap(dev);
641 mp->xfer_func = vivid_xfer_func_cap(dev);
642 mp->quantization = vivid_quantization_cap(dev);
643 memset(mp->reserved, 0, sizeof(mp->reserved));
644 return 0;
645 }
646
647 int vivid_s_fmt_vid_cap(struct file *file, void *priv,
648 struct v4l2_format *f)
649 {
650 struct v4l2_pix_format_mplane *mp = &f->fmt.pix_mp;
651 struct vivid_dev *dev = video_drvdata(file);
652 struct v4l2_rect *crop = &dev->crop_cap;
653 struct v4l2_rect *compose = &dev->compose_cap;
654 struct vb2_queue *q = &dev->vb_vid_cap_q;
655 int ret = vivid_try_fmt_vid_cap(file, priv, f);
656 unsigned factor = 1;
657 unsigned p;
658 unsigned i;
659
660 if (ret < 0)
661 return ret;
662
663 if (vb2_is_busy(q)) {
664 dprintk(dev, 1, "%s device busy\n", __func__);
665 return -EBUSY;
666 }
667
668 if (dev->overlay_cap_owner && dev->fb_cap.fmt.pixelformat != mp->pixelformat) {
669 dprintk(dev, 1, "overlay is active, can't change pixelformat\n");
670 return -EBUSY;
671 }
672
673 dev->fmt_cap = vivid_get_format(dev, mp->pixelformat);
674 if (V4L2_FIELD_HAS_T_OR_B(mp->field))
675 factor = 2;
676
677 /* Note: the webcam input doesn't support scaling, cropping or composing */
678
679 if (!vivid_is_webcam(dev) &&
680 (dev->has_scaler_cap || dev->has_crop_cap || dev->has_compose_cap)) {
681 struct v4l2_rect r = { 0, 0, mp->width, mp->height };
682
683 if (dev->has_scaler_cap) {
684 if (dev->has_compose_cap)
685 v4l2_rect_map_inside(compose, &r);
686 else
687 *compose = r;
688 if (dev->has_crop_cap && !dev->has_compose_cap) {
689 struct v4l2_rect min_r = {
690 0, 0,
691 r.width / MAX_ZOOM,
692 factor * r.height / MAX_ZOOM
693 };
694 struct v4l2_rect max_r = {
695 0, 0,
696 r.width * MAX_ZOOM,
697 factor * r.height * MAX_ZOOM
698 };
699
700 v4l2_rect_set_min_size(crop, &min_r);
701 v4l2_rect_set_max_size(crop, &max_r);
702 v4l2_rect_map_inside(crop, &dev->crop_bounds_cap);
703 } else if (dev->has_crop_cap) {
704 struct v4l2_rect min_r = {
705 0, 0,
706 compose->width / MAX_ZOOM,
707 factor * compose->height / MAX_ZOOM
708 };
709 struct v4l2_rect max_r = {
710 0, 0,
711 compose->width * MAX_ZOOM,
712 factor * compose->height * MAX_ZOOM
713 };
714
715 v4l2_rect_set_min_size(crop, &min_r);
716 v4l2_rect_set_max_size(crop, &max_r);
717 v4l2_rect_map_inside(crop, &dev->crop_bounds_cap);
718 }
719 } else if (dev->has_crop_cap && !dev->has_compose_cap) {
720 r.height *= factor;
721 v4l2_rect_set_size_to(crop, &r);
722 v4l2_rect_map_inside(crop, &dev->crop_bounds_cap);
723 r = *crop;
724 r.height /= factor;
725 v4l2_rect_set_size_to(compose, &r);
726 } else if (!dev->has_crop_cap) {
727 v4l2_rect_map_inside(compose, &r);
728 } else {
729 r.height *= factor;
730 v4l2_rect_set_max_size(crop, &r);
731 v4l2_rect_map_inside(crop, &dev->crop_bounds_cap);
732 compose->top *= factor;
733 compose->height *= factor;
734 v4l2_rect_set_size_to(compose, crop);
735 v4l2_rect_map_inside(compose, &r);
736 compose->top /= factor;
737 compose->height /= factor;
738 }
739 } else if (vivid_is_webcam(dev)) {
740 /* Guaranteed to be a match */
741 for (i = 0; i < ARRAY_SIZE(webcam_sizes); i++)
742 if (webcam_sizes[i].width == mp->width &&
743 webcam_sizes[i].height == mp->height)
744 break;
745 dev->webcam_size_idx = i;
746 if (dev->webcam_ival_idx >= 2 * (VIVID_WEBCAM_SIZES - i))
747 dev->webcam_ival_idx = 2 * (VIVID_WEBCAM_SIZES - i) - 1;
748 vivid_update_format_cap(dev, false);
749 } else {
750 struct v4l2_rect r = { 0, 0, mp->width, mp->height };
751
752 v4l2_rect_set_size_to(compose, &r);
753 r.height *= factor;
754 v4l2_rect_set_size_to(crop, &r);
755 }
756
757 dev->fmt_cap_rect.width = mp->width;
758 dev->fmt_cap_rect.height = mp->height;
759 tpg_s_buf_height(&dev->tpg, mp->height);
760 tpg_s_fourcc(&dev->tpg, dev->fmt_cap->fourcc);
761 for (p = 0; p < tpg_g_buffers(&dev->tpg); p++)
762 tpg_s_bytesperline(&dev->tpg, p, mp->plane_fmt[p].bytesperline);
763 dev->field_cap = mp->field;
764 if (dev->field_cap == V4L2_FIELD_ALTERNATE)
765 tpg_s_field(&dev->tpg, V4L2_FIELD_TOP, true);
766 else
767 tpg_s_field(&dev->tpg, dev->field_cap, false);
768 tpg_s_crop_compose(&dev->tpg, &dev->crop_cap, &dev->compose_cap);
769 if (vivid_is_sdtv_cap(dev))
770 dev->tv_field_cap = mp->field;
771 tpg_update_mv_step(&dev->tpg);
772 return 0;
773 }
774
775 int vidioc_g_fmt_vid_cap_mplane(struct file *file, void *priv,
776 struct v4l2_format *f)
777 {
778 struct vivid_dev *dev = video_drvdata(file);
779
780 if (!dev->multiplanar)
781 return -ENOTTY;
782 return vivid_g_fmt_vid_cap(file, priv, f);
783 }
784
785 int vidioc_try_fmt_vid_cap_mplane(struct file *file, void *priv,
786 struct v4l2_format *f)
787 {
788 struct vivid_dev *dev = video_drvdata(file);
789
790 if (!dev->multiplanar)
791 return -ENOTTY;
792 return vivid_try_fmt_vid_cap(file, priv, f);
793 }
794
795 int vidioc_s_fmt_vid_cap_mplane(struct file *file, void *priv,
796 struct v4l2_format *f)
797 {
798 struct vivid_dev *dev = video_drvdata(file);
799
800 if (!dev->multiplanar)
801 return -ENOTTY;
802 return vivid_s_fmt_vid_cap(file, priv, f);
803 }
804
805 int vidioc_g_fmt_vid_cap(struct file *file, void *priv,
806 struct v4l2_format *f)
807 {
808 struct vivid_dev *dev = video_drvdata(file);
809
810 if (dev->multiplanar)
811 return -ENOTTY;
812 return fmt_sp2mp_func(file, priv, f, vivid_g_fmt_vid_cap);
813 }
814
815 int vidioc_try_fmt_vid_cap(struct file *file, void *priv,
816 struct v4l2_format *f)
817 {
818 struct vivid_dev *dev = video_drvdata(file);
819
820 if (dev->multiplanar)
821 return -ENOTTY;
822 return fmt_sp2mp_func(file, priv, f, vivid_try_fmt_vid_cap);
823 }
824
825 int vidioc_s_fmt_vid_cap(struct file *file, void *priv,
826 struct v4l2_format *f)
827 {
828 struct vivid_dev *dev = video_drvdata(file);
829
830 if (dev->multiplanar)
831 return -ENOTTY;
832 return fmt_sp2mp_func(file, priv, f, vivid_s_fmt_vid_cap);
833 }
834
835 int vivid_vid_cap_g_selection(struct file *file, void *priv,
836 struct v4l2_selection *sel)
837 {
838 struct vivid_dev *dev = video_drvdata(file);
839
840 if (!dev->has_crop_cap && !dev->has_compose_cap)
841 return -ENOTTY;
842 if (sel->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
843 return -EINVAL;
844 if (vivid_is_webcam(dev))
845 return -ENODATA;
846
847 sel->r.left = sel->r.top = 0;
848 switch (sel->target) {
849 case V4L2_SEL_TGT_CROP:
850 if (!dev->has_crop_cap)
851 return -EINVAL;
852 sel->r = dev->crop_cap;
853 break;
854 case V4L2_SEL_TGT_CROP_DEFAULT:
855 case V4L2_SEL_TGT_CROP_BOUNDS:
856 if (!dev->has_crop_cap)
857 return -EINVAL;
858 sel->r = dev->src_rect;
859 break;
860 case V4L2_SEL_TGT_COMPOSE_BOUNDS:
861 if (!dev->has_compose_cap)
862 return -EINVAL;
863 sel->r = vivid_max_rect;
864 break;
865 case V4L2_SEL_TGT_COMPOSE:
866 if (!dev->has_compose_cap)
867 return -EINVAL;
868 sel->r = dev->compose_cap;
869 break;
870 case V4L2_SEL_TGT_COMPOSE_DEFAULT:
871 if (!dev->has_compose_cap)
872 return -EINVAL;
873 sel->r = dev->fmt_cap_rect;
874 break;
875 default:
876 return -EINVAL;
877 }
878 return 0;
879 }
880
881 int vivid_vid_cap_s_selection(struct file *file, void *fh, struct v4l2_selection *s)
882 {
883 struct vivid_dev *dev = video_drvdata(file);
884 struct v4l2_rect *crop = &dev->crop_cap;
885 struct v4l2_rect *compose = &dev->compose_cap;
886 unsigned factor = V4L2_FIELD_HAS_T_OR_B(dev->field_cap) ? 2 : 1;
887 int ret;
888
889 if (!dev->has_crop_cap && !dev->has_compose_cap)
890 return -ENOTTY;
891 if (s->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
892 return -EINVAL;
893 if (vivid_is_webcam(dev))
894 return -ENODATA;
895
896 switch (s->target) {
897 case V4L2_SEL_TGT_CROP:
898 if (!dev->has_crop_cap)
899 return -EINVAL;
900 ret = vivid_vid_adjust_sel(s->flags, &s->r);
901 if (ret)
902 return ret;
903 v4l2_rect_set_min_size(&s->r, &vivid_min_rect);
904 v4l2_rect_set_max_size(&s->r, &dev->src_rect);
905 v4l2_rect_map_inside(&s->r, &dev->crop_bounds_cap);
906 s->r.top /= factor;
907 s->r.height /= factor;
908 if (dev->has_scaler_cap) {
909 struct v4l2_rect fmt = dev->fmt_cap_rect;
910 struct v4l2_rect max_rect = {
911 0, 0,
912 s->r.width * MAX_ZOOM,
913 s->r.height * MAX_ZOOM
914 };
915 struct v4l2_rect min_rect = {
916 0, 0,
917 s->r.width / MAX_ZOOM,
918 s->r.height / MAX_ZOOM
919 };
920
921 v4l2_rect_set_min_size(&fmt, &min_rect);
922 if (!dev->has_compose_cap)
923 v4l2_rect_set_max_size(&fmt, &max_rect);
924 if (!v4l2_rect_same_size(&dev->fmt_cap_rect, &fmt) &&
925 vb2_is_busy(&dev->vb_vid_cap_q))
926 return -EBUSY;
927 if (dev->has_compose_cap) {
928 v4l2_rect_set_min_size(compose, &min_rect);
929 v4l2_rect_set_max_size(compose, &max_rect);
930 }
931 dev->fmt_cap_rect = fmt;
932 tpg_s_buf_height(&dev->tpg, fmt.height);
933 } else if (dev->has_compose_cap) {
934 struct v4l2_rect fmt = dev->fmt_cap_rect;
935
936 v4l2_rect_set_min_size(&fmt, &s->r);
937 if (!v4l2_rect_same_size(&dev->fmt_cap_rect, &fmt) &&
938 vb2_is_busy(&dev->vb_vid_cap_q))
939 return -EBUSY;
940 dev->fmt_cap_rect = fmt;
941 tpg_s_buf_height(&dev->tpg, fmt.height);
942 v4l2_rect_set_size_to(compose, &s->r);
943 v4l2_rect_map_inside(compose, &dev->fmt_cap_rect);
944 } else {
945 if (!v4l2_rect_same_size(&s->r, &dev->fmt_cap_rect) &&
946 vb2_is_busy(&dev->vb_vid_cap_q))
947 return -EBUSY;
948 v4l2_rect_set_size_to(&dev->fmt_cap_rect, &s->r);
949 v4l2_rect_set_size_to(compose, &s->r);
950 v4l2_rect_map_inside(compose, &dev->fmt_cap_rect);
951 tpg_s_buf_height(&dev->tpg, dev->fmt_cap_rect.height);
952 }
953 s->r.top *= factor;
954 s->r.height *= factor;
955 *crop = s->r;
956 break;
957 case V4L2_SEL_TGT_COMPOSE:
958 if (!dev->has_compose_cap)
959 return -EINVAL;
960 ret = vivid_vid_adjust_sel(s->flags, &s->r);
961 if (ret)
962 return ret;
963 v4l2_rect_set_min_size(&s->r, &vivid_min_rect);
964 v4l2_rect_set_max_size(&s->r, &dev->fmt_cap_rect);
965 if (dev->has_scaler_cap) {
966 struct v4l2_rect max_rect = {
967 0, 0,
968 dev->src_rect.width * MAX_ZOOM,
969 (dev->src_rect.height / factor) * MAX_ZOOM
970 };
971
972 v4l2_rect_set_max_size(&s->r, &max_rect);
973 if (dev->has_crop_cap) {
974 struct v4l2_rect min_rect = {
975 0, 0,
976 s->r.width / MAX_ZOOM,
977 (s->r.height * factor) / MAX_ZOOM
978 };
979 struct v4l2_rect max_rect = {
980 0, 0,
981 s->r.width * MAX_ZOOM,
982 (s->r.height * factor) * MAX_ZOOM
983 };
984
985 v4l2_rect_set_min_size(crop, &min_rect);
986 v4l2_rect_set_max_size(crop, &max_rect);
987 v4l2_rect_map_inside(crop, &dev->crop_bounds_cap);
988 }
989 } else if (dev->has_crop_cap) {
990 s->r.top *= factor;
991 s->r.height *= factor;
992 v4l2_rect_set_max_size(&s->r, &dev->src_rect);
993 v4l2_rect_set_size_to(crop, &s->r);
994 v4l2_rect_map_inside(crop, &dev->crop_bounds_cap);
995 s->r.top /= factor;
996 s->r.height /= factor;
997 } else {
998 v4l2_rect_set_size_to(&s->r, &dev->src_rect);
999 s->r.height /= factor;
1000 }
1001 v4l2_rect_map_inside(&s->r, &dev->fmt_cap_rect);
1002 if (dev->bitmap_cap && (compose->width != s->r.width ||
1003 compose->height != s->r.height)) {
1004 vfree(dev->bitmap_cap);
1005 dev->bitmap_cap = NULL;
1006 }
1007 *compose = s->r;
1008 break;
1009 default:
1010 return -EINVAL;
1011 }
1012
1013 tpg_s_crop_compose(&dev->tpg, crop, compose);
1014 return 0;
1015 }
1016
1017 int vivid_vid_cap_g_pixelaspect(struct file *file, void *priv,
1018 int type, struct v4l2_fract *f)
1019 {
1020 struct vivid_dev *dev = video_drvdata(file);
1021
1022 if (type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
1023 return -EINVAL;
1024
1025 switch (vivid_get_pixel_aspect(dev)) {
1026 case TPG_PIXEL_ASPECT_NTSC:
1027 f->numerator = 11;
1028 f->denominator = 10;
1029 break;
1030 case TPG_PIXEL_ASPECT_PAL:
1031 f->numerator = 54;
1032 f->denominator = 59;
1033 break;
1034 default:
1035 break;
1036 }
1037 return 0;
1038 }
1039
1040 int vidioc_enum_fmt_vid_overlay(struct file *file, void *priv,
1041 struct v4l2_fmtdesc *f)
1042 {
1043 struct vivid_dev *dev = video_drvdata(file);
1044 const struct vivid_fmt *fmt;
1045
1046 if (dev->multiplanar)
1047 return -ENOTTY;
1048
1049 if (f->index >= ARRAY_SIZE(formats_ovl))
1050 return -EINVAL;
1051
1052 fmt = &formats_ovl[f->index];
1053
1054 f->pixelformat = fmt->fourcc;
1055 return 0;
1056 }
1057
1058 int vidioc_g_fmt_vid_overlay(struct file *file, void *priv,
1059 struct v4l2_format *f)
1060 {
1061 struct vivid_dev *dev = video_drvdata(file);
1062 const struct v4l2_rect *compose = &dev->compose_cap;
1063 struct v4l2_window *win = &f->fmt.win;
1064 unsigned clipcount = win->clipcount;
1065
1066 if (dev->multiplanar)
1067 return -ENOTTY;
1068
1069 win->w.top = dev->overlay_cap_top;
1070 win->w.left = dev->overlay_cap_left;
1071 win->w.width = compose->width;
1072 win->w.height = compose->height;
1073 win->field = dev->overlay_cap_field;
1074 win->clipcount = dev->clipcount_cap;
1075 if (clipcount > dev->clipcount_cap)
1076 clipcount = dev->clipcount_cap;
1077 if (dev->bitmap_cap == NULL)
1078 win->bitmap = NULL;
1079 else if (win->bitmap) {
1080 if (copy_to_user(win->bitmap, dev->bitmap_cap,
1081 ((compose->width + 7) / 8) * compose->height))
1082 return -EFAULT;
1083 }
1084 if (clipcount && win->clips) {
1085 if (copy_to_user(win->clips, dev->clips_cap,
1086 clipcount * sizeof(dev->clips_cap[0])))
1087 return -EFAULT;
1088 }
1089 return 0;
1090 }
1091
1092 int vidioc_try_fmt_vid_overlay(struct file *file, void *priv,
1093 struct v4l2_format *f)
1094 {
1095 struct vivid_dev *dev = video_drvdata(file);
1096 const struct v4l2_rect *compose = &dev->compose_cap;
1097 struct v4l2_window *win = &f->fmt.win;
1098 int i, j;
1099
1100 if (dev->multiplanar)
1101 return -ENOTTY;
1102
1103 win->w.left = clamp_t(int, win->w.left,
1104 -dev->fb_cap.fmt.width, dev->fb_cap.fmt.width);
1105 win->w.top = clamp_t(int, win->w.top,
1106 -dev->fb_cap.fmt.height, dev->fb_cap.fmt.height);
1107 win->w.width = compose->width;
1108 win->w.height = compose->height;
1109 if (win->field != V4L2_FIELD_BOTTOM && win->field != V4L2_FIELD_TOP)
1110 win->field = V4L2_FIELD_ANY;
1111 win->chromakey = 0;
1112 win->global_alpha = 0;
1113 if (win->clipcount && !win->clips)
1114 win->clipcount = 0;
1115 if (win->clipcount > MAX_CLIPS)
1116 win->clipcount = MAX_CLIPS;
1117 if (win->clipcount) {
1118 if (copy_from_user(dev->try_clips_cap, win->clips,
1119 win->clipcount * sizeof(dev->clips_cap[0])))
1120 return -EFAULT;
1121 for (i = 0; i < win->clipcount; i++) {
1122 struct v4l2_rect *r = &dev->try_clips_cap[i].c;
1123
1124 r->top = clamp_t(s32, r->top, 0, dev->fb_cap.fmt.height - 1);
1125 r->height = clamp_t(s32, r->height, 1, dev->fb_cap.fmt.height - r->top);
1126 r->left = clamp_t(u32, r->left, 0, dev->fb_cap.fmt.width - 1);
1127 r->width = clamp_t(u32, r->width, 1, dev->fb_cap.fmt.width - r->left);
1128 }
1129 /*
1130 * Yeah, so sue me, it's an O(n^2) algorithm. But n is a small
1131 * number and it's typically a one-time deal.
1132 */
1133 for (i = 0; i < win->clipcount - 1; i++) {
1134 struct v4l2_rect *r1 = &dev->try_clips_cap[i].c;
1135
1136 for (j = i + 1; j < win->clipcount; j++) {
1137 struct v4l2_rect *r2 = &dev->try_clips_cap[j].c;
1138
1139 if (v4l2_rect_overlap(r1, r2))
1140 return -EINVAL;
1141 }
1142 }
1143 if (copy_to_user(win->clips, dev->try_clips_cap,
1144 win->clipcount * sizeof(dev->clips_cap[0])))
1145 return -EFAULT;
1146 }
1147 return 0;
1148 }
1149
1150 int vidioc_s_fmt_vid_overlay(struct file *file, void *priv,
1151 struct v4l2_format *f)
1152 {
1153 struct vivid_dev *dev = video_drvdata(file);
1154 const struct v4l2_rect *compose = &dev->compose_cap;
1155 struct v4l2_window *win = &f->fmt.win;
1156 int ret = vidioc_try_fmt_vid_overlay(file, priv, f);
1157 unsigned bitmap_size = ((compose->width + 7) / 8) * compose->height;
1158 unsigned clips_size = win->clipcount * sizeof(dev->clips_cap[0]);
1159 void *new_bitmap = NULL;
1160
1161 if (ret)
1162 return ret;
1163
1164 if (win->bitmap) {
1165 new_bitmap = vzalloc(bitmap_size);
1166
1167 if (new_bitmap == NULL)
1168 return -ENOMEM;
1169 if (copy_from_user(new_bitmap, win->bitmap, bitmap_size)) {
1170 vfree(new_bitmap);
1171 return -EFAULT;
1172 }
1173 }
1174
1175 dev->overlay_cap_top = win->w.top;
1176 dev->overlay_cap_left = win->w.left;
1177 dev->overlay_cap_field = win->field;
1178 vfree(dev->bitmap_cap);
1179 dev->bitmap_cap = new_bitmap;
1180 dev->clipcount_cap = win->clipcount;
1181 if (dev->clipcount_cap)
1182 memcpy(dev->clips_cap, dev->try_clips_cap, clips_size);
1183 return 0;
1184 }
1185
1186 int vivid_vid_cap_overlay(struct file *file, void *fh, unsigned i)
1187 {
1188 struct vivid_dev *dev = video_drvdata(file);
1189
1190 if (dev->multiplanar)
1191 return -ENOTTY;
1192
1193 if (i && dev->fb_vbase_cap == NULL)
1194 return -EINVAL;
1195
1196 if (i && dev->fb_cap.fmt.pixelformat != dev->fmt_cap->fourcc) {
1197 dprintk(dev, 1, "mismatch between overlay and video capture pixelformats\n");
1198 return -EINVAL;
1199 }
1200
1201 if (dev->overlay_cap_owner && dev->overlay_cap_owner != fh)
1202 return -EBUSY;
1203 dev->overlay_cap_owner = i ? fh : NULL;
1204 return 0;
1205 }
1206
1207 int vivid_vid_cap_g_fbuf(struct file *file, void *fh,
1208 struct v4l2_framebuffer *a)
1209 {
1210 struct vivid_dev *dev = video_drvdata(file);
1211
1212 if (dev->multiplanar)
1213 return -ENOTTY;
1214
1215 *a = dev->fb_cap;
1216 a->capability = V4L2_FBUF_CAP_BITMAP_CLIPPING |
1217 V4L2_FBUF_CAP_LIST_CLIPPING;
1218 a->flags = V4L2_FBUF_FLAG_PRIMARY;
1219 a->fmt.field = V4L2_FIELD_NONE;
1220 a->fmt.colorspace = V4L2_COLORSPACE_SRGB;
1221 a->fmt.priv = 0;
1222 return 0;
1223 }
1224
1225 int vivid_vid_cap_s_fbuf(struct file *file, void *fh,
1226 const struct v4l2_framebuffer *a)
1227 {
1228 struct vivid_dev *dev = video_drvdata(file);
1229 const struct vivid_fmt *fmt;
1230
1231 if (dev->multiplanar)
1232 return -ENOTTY;
1233
1234 if (!capable(CAP_SYS_ADMIN) && !capable(CAP_SYS_RAWIO))
1235 return -EPERM;
1236
1237 if (dev->overlay_cap_owner)
1238 return -EBUSY;
1239
1240 if (a->base == NULL) {
1241 dev->fb_cap.base = NULL;
1242 dev->fb_vbase_cap = NULL;
1243 return 0;
1244 }
1245
1246 if (a->fmt.width < 48 || a->fmt.height < 32)
1247 return -EINVAL;
1248 fmt = vivid_get_format(dev, a->fmt.pixelformat);
1249 if (!fmt || !fmt->can_do_overlay)
1250 return -EINVAL;
1251 if (a->fmt.bytesperline < (a->fmt.width * fmt->bit_depth[0]) / 8)
1252 return -EINVAL;
1253 if (a->fmt.height * a->fmt.bytesperline < a->fmt.sizeimage)
1254 return -EINVAL;
1255
1256 dev->fb_vbase_cap = phys_to_virt((unsigned long)a->base);
1257 dev->fb_cap = *a;
1258 dev->overlay_cap_left = clamp_t(int, dev->overlay_cap_left,
1259 -dev->fb_cap.fmt.width, dev->fb_cap.fmt.width);
1260 dev->overlay_cap_top = clamp_t(int, dev->overlay_cap_top,
1261 -dev->fb_cap.fmt.height, dev->fb_cap.fmt.height);
1262 return 0;
1263 }
1264
1265 static const struct v4l2_audio vivid_audio_inputs[] = {
1266 { 0, "TV", V4L2_AUDCAP_STEREO },
1267 { 1, "Line-In", V4L2_AUDCAP_STEREO },
1268 };
1269
1270 int vidioc_enum_input(struct file *file, void *priv,
1271 struct v4l2_input *inp)
1272 {
1273 struct vivid_dev *dev = video_drvdata(file);
1274
1275 if (inp->index >= dev->num_inputs)
1276 return -EINVAL;
1277
1278 inp->type = V4L2_INPUT_TYPE_CAMERA;
1279 switch (dev->input_type[inp->index]) {
1280 case WEBCAM:
1281 snprintf(inp->name, sizeof(inp->name), "Webcam %u",
1282 dev->input_name_counter[inp->index]);
1283 inp->capabilities = 0;
1284 break;
1285 case TV:
1286 snprintf(inp->name, sizeof(inp->name), "TV %u",
1287 dev->input_name_counter[inp->index]);
1288 inp->type = V4L2_INPUT_TYPE_TUNER;
1289 inp->std = V4L2_STD_ALL;
1290 if (dev->has_audio_inputs)
1291 inp->audioset = (1 << ARRAY_SIZE(vivid_audio_inputs)) - 1;
1292 inp->capabilities = V4L2_IN_CAP_STD;
1293 break;
1294 case SVID:
1295 snprintf(inp->name, sizeof(inp->name), "S-Video %u",
1296 dev->input_name_counter[inp->index]);
1297 inp->std = V4L2_STD_ALL;
1298 if (dev->has_audio_inputs)
1299 inp->audioset = (1 << ARRAY_SIZE(vivid_audio_inputs)) - 1;
1300 inp->capabilities = V4L2_IN_CAP_STD;
1301 break;
1302 case HDMI:
1303 snprintf(inp->name, sizeof(inp->name), "HDMI %u",
1304 dev->input_name_counter[inp->index]);
1305 inp->capabilities = V4L2_IN_CAP_DV_TIMINGS;
1306 if (dev->edid_blocks == 0 ||
1307 dev->dv_timings_signal_mode[dev->input] == NO_SIGNAL)
1308 inp->status |= V4L2_IN_ST_NO_SIGNAL;
1309 else if (dev->dv_timings_signal_mode[dev->input] == NO_LOCK ||
1310 dev->dv_timings_signal_mode[dev->input] == OUT_OF_RANGE)
1311 inp->status |= V4L2_IN_ST_NO_H_LOCK;
1312 break;
1313 }
1314 if (dev->sensor_hflip)
1315 inp->status |= V4L2_IN_ST_HFLIP;
1316 if (dev->sensor_vflip)
1317 inp->status |= V4L2_IN_ST_VFLIP;
1318 if (dev->input == inp->index && vivid_is_sdtv_cap(dev)) {
1319 if (dev->std_signal_mode[dev->input] == NO_SIGNAL) {
1320 inp->status |= V4L2_IN_ST_NO_SIGNAL;
1321 } else if (dev->std_signal_mode[dev->input] == NO_LOCK) {
1322 inp->status |= V4L2_IN_ST_NO_H_LOCK;
1323 } else if (vivid_is_tv_cap(dev)) {
1324 switch (tpg_g_quality(&dev->tpg)) {
1325 case TPG_QUAL_GRAY:
1326 inp->status |= V4L2_IN_ST_COLOR_KILL;
1327 break;
1328 case TPG_QUAL_NOISE:
1329 inp->status |= V4L2_IN_ST_NO_H_LOCK;
1330 break;
1331 default:
1332 break;
1333 }
1334 }
1335 }
1336 return 0;
1337 }
1338
1339 int vidioc_g_input(struct file *file, void *priv, unsigned *i)
1340 {
1341 struct vivid_dev *dev = video_drvdata(file);
1342
1343 *i = dev->input;
1344 return 0;
1345 }
1346
1347 int vidioc_s_input(struct file *file, void *priv, unsigned i)
1348 {
1349 struct vivid_dev *dev = video_drvdata(file);
1350 struct v4l2_bt_timings *bt = &dev->dv_timings_cap[dev->input].bt;
1351 unsigned brightness;
1352
1353 if (i >= dev->num_inputs)
1354 return -EINVAL;
1355
1356 if (i == dev->input)
1357 return 0;
1358
1359 if (vb2_is_busy(&dev->vb_vid_cap_q) ||
1360 vb2_is_busy(&dev->vb_vbi_cap_q) ||
1361 vb2_is_busy(&dev->vb_meta_cap_q))
1362 return -EBUSY;
1363
1364 dev->input = i;
1365 dev->vid_cap_dev.tvnorms = 0;
1366 if (dev->input_type[i] == TV || dev->input_type[i] == SVID) {
1367 dev->tv_audio_input = (dev->input_type[i] == TV) ? 0 : 1;
1368 dev->vid_cap_dev.tvnorms = V4L2_STD_ALL;
1369 }
1370 dev->vbi_cap_dev.tvnorms = dev->vid_cap_dev.tvnorms;
1371 dev->meta_cap_dev.tvnorms = dev->vid_cap_dev.tvnorms;
1372 vivid_update_format_cap(dev, false);
1373
1374 if (dev->colorspace) {
1375 switch (dev->input_type[i]) {
1376 case WEBCAM:
1377 v4l2_ctrl_s_ctrl(dev->colorspace, VIVID_CS_SRGB);
1378 break;
1379 case TV:
1380 case SVID:
1381 v4l2_ctrl_s_ctrl(dev->colorspace, VIVID_CS_170M);
1382 break;
1383 case HDMI:
1384 if (bt->flags & V4L2_DV_FL_IS_CE_VIDEO) {
1385 if (dev->src_rect.width == 720 && dev->src_rect.height <= 576)
1386 v4l2_ctrl_s_ctrl(dev->colorspace, VIVID_CS_170M);
1387 else
1388 v4l2_ctrl_s_ctrl(dev->colorspace, VIVID_CS_709);
1389 } else {
1390 v4l2_ctrl_s_ctrl(dev->colorspace, VIVID_CS_SRGB);
1391 }
1392 break;
1393 }
1394 }
1395
1396 /*
1397 * Modify the brightness range depending on the input.
1398 * This makes it easy to use vivid to test if applications can
1399 * handle control range modifications and is also how this is
1400 * typically used in practice as different inputs may be hooked
1401 * up to different receivers with different control ranges.
1402 */
1403 brightness = 128 * i + dev->input_brightness[i];
1404 v4l2_ctrl_modify_range(dev->brightness,
1405 128 * i, 255 + 128 * i, 1, 128 + 128 * i);
1406 v4l2_ctrl_s_ctrl(dev->brightness, brightness);
1407
1408 /* Restore per-input states. */
1409 v4l2_ctrl_activate(dev->ctrl_dv_timings_signal_mode,
1410 vivid_is_hdmi_cap(dev));
1411 v4l2_ctrl_activate(dev->ctrl_dv_timings, vivid_is_hdmi_cap(dev) &&
1412 dev->dv_timings_signal_mode[dev->input] ==
1413 SELECTED_DV_TIMINGS);
1414 v4l2_ctrl_activate(dev->ctrl_std_signal_mode, vivid_is_sdtv_cap(dev));
1415 v4l2_ctrl_activate(dev->ctrl_standard, vivid_is_sdtv_cap(dev) &&
1416 dev->std_signal_mode[dev->input]);
1417
1418 if (vivid_is_hdmi_cap(dev)) {
1419 v4l2_ctrl_s_ctrl(dev->ctrl_dv_timings_signal_mode,
1420 dev->dv_timings_signal_mode[dev->input]);
1421 v4l2_ctrl_s_ctrl(dev->ctrl_dv_timings,
1422 dev->query_dv_timings[dev->input]);
1423 } else if (vivid_is_sdtv_cap(dev)) {
1424 v4l2_ctrl_s_ctrl(dev->ctrl_std_signal_mode,
1425 dev->std_signal_mode[dev->input]);
1426 v4l2_ctrl_s_ctrl(dev->ctrl_standard,
1427 dev->std_signal_mode[dev->input]);
1428 }
1429
1430 return 0;
1431 }
1432
1433 int vidioc_enumaudio(struct file *file, void *fh, struct v4l2_audio *vin)
1434 {
1435 if (vin->index >= ARRAY_SIZE(vivid_audio_inputs))
1436 return -EINVAL;
1437 *vin = vivid_audio_inputs[vin->index];
1438 return 0;
1439 }
1440
1441 int vidioc_g_audio(struct file *file, void *fh, struct v4l2_audio *vin)
1442 {
1443 struct vivid_dev *dev = video_drvdata(file);
1444
1445 if (!vivid_is_sdtv_cap(dev))
1446 return -EINVAL;
1447 *vin = vivid_audio_inputs[dev->tv_audio_input];
1448 return 0;
1449 }
1450
1451 int vidioc_s_audio(struct file *file, void *fh, const struct v4l2_audio *vin)
1452 {
1453 struct vivid_dev *dev = video_drvdata(file);
1454
1455 if (!vivid_is_sdtv_cap(dev))
1456 return -EINVAL;
1457 if (vin->index >= ARRAY_SIZE(vivid_audio_inputs))
1458 return -EINVAL;
1459 dev->tv_audio_input = vin->index;
1460 return 0;
1461 }
1462
1463 int vivid_video_g_frequency(struct file *file, void *fh, struct v4l2_frequency *vf)
1464 {
1465 struct vivid_dev *dev = video_drvdata(file);
1466
1467 if (vf->tuner != 0)
1468 return -EINVAL;
1469 vf->frequency = dev->tv_freq;
1470 return 0;
1471 }
1472
1473 int vivid_video_s_frequency(struct file *file, void *fh, const struct v4l2_frequency *vf)
1474 {
1475 struct vivid_dev *dev = video_drvdata(file);
1476
1477 if (vf->tuner != 0)
1478 return -EINVAL;
1479 dev->tv_freq = clamp_t(unsigned, vf->frequency, MIN_TV_FREQ, MAX_TV_FREQ);
1480 if (vivid_is_tv_cap(dev))
1481 vivid_update_quality(dev);
1482 return 0;
1483 }
1484
1485 int vivid_video_s_tuner(struct file *file, void *fh, const struct v4l2_tuner *vt)
1486 {
1487 struct vivid_dev *dev = video_drvdata(file);
1488
1489 if (vt->index != 0)
1490 return -EINVAL;
1491 if (vt->audmode > V4L2_TUNER_MODE_LANG1_LANG2)
1492 return -EINVAL;
1493 dev->tv_audmode = vt->audmode;
1494 return 0;
1495 }
1496
1497 int vivid_video_g_tuner(struct file *file, void *fh, struct v4l2_tuner *vt)
1498 {
1499 struct vivid_dev *dev = video_drvdata(file);
1500 enum tpg_quality qual;
1501
1502 if (vt->index != 0)
1503 return -EINVAL;
1504
1505 vt->capability = V4L2_TUNER_CAP_NORM | V4L2_TUNER_CAP_STEREO |
1506 V4L2_TUNER_CAP_LANG1 | V4L2_TUNER_CAP_LANG2;
1507 vt->audmode = dev->tv_audmode;
1508 vt->rangelow = MIN_TV_FREQ;
1509 vt->rangehigh = MAX_TV_FREQ;
1510 qual = vivid_get_quality(dev, &vt->afc);
1511 if (qual == TPG_QUAL_COLOR)
1512 vt->signal = 0xffff;
1513 else if (qual == TPG_QUAL_GRAY)
1514 vt->signal = 0x8000;
1515 else
1516 vt->signal = 0;
1517 if (qual == TPG_QUAL_NOISE) {
1518 vt->rxsubchans = 0;
1519 } else if (qual == TPG_QUAL_GRAY) {
1520 vt->rxsubchans = V4L2_TUNER_SUB_MONO;
1521 } else {
1522 unsigned int channel_nr = dev->tv_freq / (6 * 16);
1523 unsigned int options =
1524 (dev->std_cap[dev->input] & V4L2_STD_NTSC_M) ? 4 : 3;
1525
1526 switch (channel_nr % options) {
1527 case 0:
1528 vt->rxsubchans = V4L2_TUNER_SUB_MONO;
1529 break;
1530 case 1:
1531 vt->rxsubchans = V4L2_TUNER_SUB_STEREO;
1532 break;
1533 case 2:
1534 if (dev->std_cap[dev->input] & V4L2_STD_NTSC_M)
1535 vt->rxsubchans = V4L2_TUNER_SUB_MONO | V4L2_TUNER_SUB_SAP;
1536 else
1537 vt->rxsubchans = V4L2_TUNER_SUB_LANG1 | V4L2_TUNER_SUB_LANG2;
1538 break;
1539 case 3:
1540 vt->rxsubchans = V4L2_TUNER_SUB_STEREO | V4L2_TUNER_SUB_SAP;
1541 break;
1542 }
1543 }
1544 strscpy(vt->name, "TV Tuner", sizeof(vt->name));
1545 return 0;
1546 }
1547
1548 /* Must remain in sync with the vivid_ctrl_standard_strings array */
1549 const v4l2_std_id vivid_standard[] = {
1550 V4L2_STD_NTSC_M,
1551 V4L2_STD_NTSC_M_JP,
1552 V4L2_STD_NTSC_M_KR,
1553 V4L2_STD_NTSC_443,
1554 V4L2_STD_PAL_BG | V4L2_STD_PAL_H,
1555 V4L2_STD_PAL_I,
1556 V4L2_STD_PAL_DK,
1557 V4L2_STD_PAL_M,
1558 V4L2_STD_PAL_N,
1559 V4L2_STD_PAL_Nc,
1560 V4L2_STD_PAL_60,
1561 V4L2_STD_SECAM_B | V4L2_STD_SECAM_G | V4L2_STD_SECAM_H,
1562 V4L2_STD_SECAM_DK,
1563 V4L2_STD_SECAM_L,
1564 V4L2_STD_SECAM_LC,
1565 V4L2_STD_UNKNOWN
1566 };
1567
1568 /* Must remain in sync with the vivid_standard array */
1569 const char * const vivid_ctrl_standard_strings[] = {
1570 "NTSC-M",
1571 "NTSC-M-JP",
1572 "NTSC-M-KR",
1573 "NTSC-443",
1574 "PAL-BGH",
1575 "PAL-I",
1576 "PAL-DK",
1577 "PAL-M",
1578 "PAL-N",
1579 "PAL-Nc",
1580 "PAL-60",
1581 "SECAM-BGH",
1582 "SECAM-DK",
1583 "SECAM-L",
1584 "SECAM-Lc",
1585 NULL,
1586 };
1587
1588 int vidioc_querystd(struct file *file, void *priv, v4l2_std_id *id)
1589 {
1590 struct vivid_dev *dev = video_drvdata(file);
1591 unsigned int last = dev->query_std_last[dev->input];
1592
1593 if (!vivid_is_sdtv_cap(dev))
1594 return -ENODATA;
1595 if (dev->std_signal_mode[dev->input] == NO_SIGNAL ||
1596 dev->std_signal_mode[dev->input] == NO_LOCK) {
1597 *id = V4L2_STD_UNKNOWN;
1598 return 0;
1599 }
1600 if (vivid_is_tv_cap(dev) && tpg_g_quality(&dev->tpg) == TPG_QUAL_NOISE) {
1601 *id = V4L2_STD_UNKNOWN;
1602 } else if (dev->std_signal_mode[dev->input] == CURRENT_STD) {
1603 *id = dev->std_cap[dev->input];
1604 } else if (dev->std_signal_mode[dev->input] == SELECTED_STD) {
1605 *id = dev->query_std[dev->input];
1606 } else {
1607 *id = vivid_standard[last];
1608 dev->query_std_last[dev->input] =
1609 (last + 1) % ARRAY_SIZE(vivid_standard);
1610 }
1611
1612 return 0;
1613 }
1614
1615 int vivid_vid_cap_s_std(struct file *file, void *priv, v4l2_std_id id)
1616 {
1617 struct vivid_dev *dev = video_drvdata(file);
1618
1619 if (!vivid_is_sdtv_cap(dev))
1620 return -ENODATA;
1621 if (dev->std_cap[dev->input] == id)
1622 return 0;
1623 if (vb2_is_busy(&dev->vb_vid_cap_q) || vb2_is_busy(&dev->vb_vbi_cap_q))
1624 return -EBUSY;
1625 dev->std_cap[dev->input] = id;
1626 vivid_update_format_cap(dev, false);
1627 return 0;
1628 }
1629
1630 static void find_aspect_ratio(u32 width, u32 height,
1631 u32 *num, u32 *denom)
1632 {
1633 if (!(height % 3) && ((height * 4 / 3) == width)) {
1634 *num = 4;
1635 *denom = 3;
1636 } else if (!(height % 9) && ((height * 16 / 9) == width)) {
1637 *num = 16;
1638 *denom = 9;
1639 } else if (!(height % 10) && ((height * 16 / 10) == width)) {
1640 *num = 16;
1641 *denom = 10;
1642 } else if (!(height % 4) && ((height * 5 / 4) == width)) {
1643 *num = 5;
1644 *denom = 4;
1645 } else if (!(height % 9) && ((height * 15 / 9) == width)) {
1646 *num = 15;
1647 *denom = 9;
1648 } else { /* default to 16:9 */
1649 *num = 16;
1650 *denom = 9;
1651 }
1652 }
1653
1654 static bool valid_cvt_gtf_timings(struct v4l2_dv_timings *timings)
1655 {
1656 struct v4l2_bt_timings *bt = &timings->bt;
1657 u32 total_h_pixel;
1658 u32 total_v_lines;
1659 u32 h_freq;
1660
1661 if (!v4l2_valid_dv_timings(timings, &vivid_dv_timings_cap,
1662 NULL, NULL))
1663 return false;
1664
1665 total_h_pixel = V4L2_DV_BT_FRAME_WIDTH(bt);
1666 total_v_lines = V4L2_DV_BT_FRAME_HEIGHT(bt);
1667
1668 h_freq = (u32)bt->pixelclock / total_h_pixel;
1669
1670 if (bt->standards == 0 || (bt->standards & V4L2_DV_BT_STD_CVT)) {
1671 if (v4l2_detect_cvt(total_v_lines, h_freq, bt->vsync, bt->width,
1672 bt->polarities, bt->interlaced, timings))
1673 return true;
1674 }
1675
1676 if (bt->standards == 0 || (bt->standards & V4L2_DV_BT_STD_GTF)) {
1677 struct v4l2_fract aspect_ratio;
1678
1679 find_aspect_ratio(bt->width, bt->height,
1680 &aspect_ratio.numerator,
1681 &aspect_ratio.denominator);
1682 if (v4l2_detect_gtf(total_v_lines, h_freq, bt->vsync,
1683 bt->polarities, bt->interlaced,
1684 aspect_ratio, timings))
1685 return true;
1686 }
1687 return false;
1688 }
1689
1690 int vivid_vid_cap_s_dv_timings(struct file *file, void *_fh,
1691 struct v4l2_dv_timings *timings)
1692 {
1693 struct vivid_dev *dev = video_drvdata(file);
1694
1695 if (!vivid_is_hdmi_cap(dev))
1696 return -ENODATA;
1697 if (!v4l2_find_dv_timings_cap(timings, &vivid_dv_timings_cap,
1698 0, NULL, NULL) &&
1699 !valid_cvt_gtf_timings(timings))
1700 return -EINVAL;
1701
1702 if (v4l2_match_dv_timings(timings, &dev->dv_timings_cap[dev->input],
1703 0, false))
1704 return 0;
1705 if (vb2_is_busy(&dev->vb_vid_cap_q))
1706 return -EBUSY;
1707
1708 dev->dv_timings_cap[dev->input] = *timings;
1709 vivid_update_format_cap(dev, false);
1710 return 0;
1711 }
1712
1713 int vidioc_query_dv_timings(struct file *file, void *_fh,
1714 struct v4l2_dv_timings *timings)
1715 {
1716 struct vivid_dev *dev = video_drvdata(file);
1717 unsigned int input = dev->input;
1718 unsigned int last = dev->query_dv_timings_last[input];
1719
1720 if (!vivid_is_hdmi_cap(dev))
1721 return -ENODATA;
1722 if (dev->dv_timings_signal_mode[input] == NO_SIGNAL ||
1723 dev->edid_blocks == 0)
1724 return -ENOLINK;
1725 if (dev->dv_timings_signal_mode[input] == NO_LOCK)
1726 return -ENOLCK;
1727 if (dev->dv_timings_signal_mode[input] == OUT_OF_RANGE) {
1728 timings->bt.pixelclock = vivid_dv_timings_cap.bt.max_pixelclock * 2;
1729 return -ERANGE;
1730 }
1731 if (dev->dv_timings_signal_mode[input] == CURRENT_DV_TIMINGS) {
1732 *timings = dev->dv_timings_cap[input];
1733 } else if (dev->dv_timings_signal_mode[input] ==
1734 SELECTED_DV_TIMINGS) {
1735 *timings =
1736 v4l2_dv_timings_presets[dev->query_dv_timings[input]];
1737 } else {
1738 *timings =
1739 v4l2_dv_timings_presets[last];
1740 dev->query_dv_timings_last[input] =
1741 (last + 1) % dev->query_dv_timings_size;
1742 }
1743 return 0;
1744 }
1745
1746 int vidioc_s_edid(struct file *file, void *_fh,
1747 struct v4l2_edid *edid)
1748 {
1749 struct vivid_dev *dev = video_drvdata(file);
1750 u16 phys_addr;
1751 u32 display_present = 0;
1752 unsigned int i, j;
1753 int ret;
1754
1755 memset(edid->reserved, 0, sizeof(edid->reserved));
1756 if (edid->pad >= dev->num_inputs)
1757 return -EINVAL;
1758 if (dev->input_type[edid->pad] != HDMI || edid->start_block)
1759 return -EINVAL;
1760 if (edid->blocks == 0) {
1761 dev->edid_blocks = 0;
1762 v4l2_ctrl_s_ctrl(dev->ctrl_tx_edid_present, 0);
1763 v4l2_ctrl_s_ctrl(dev->ctrl_tx_hotplug, 0);
1764 phys_addr = CEC_PHYS_ADDR_INVALID;
1765 goto set_phys_addr;
1766 }
1767 if (edid->blocks > dev->edid_max_blocks) {
1768 edid->blocks = dev->edid_max_blocks;
1769 return -E2BIG;
1770 }
1771 phys_addr = cec_get_edid_phys_addr(edid->edid, edid->blocks * 128, NULL);
1772 ret = v4l2_phys_addr_validate(phys_addr, &phys_addr, NULL);
1773 if (ret)
1774 return ret;
1775
1776 if (vb2_is_busy(&dev->vb_vid_cap_q))
1777 return -EBUSY;
1778
1779 dev->edid_blocks = edid->blocks;
1780 memcpy(dev->edid, edid->edid, edid->blocks * 128);
1781
1782 for (i = 0, j = 0; i < dev->num_outputs; i++)
1783 if (dev->output_type[i] == HDMI)
1784 display_present |=
1785 dev->display_present[i] << j++;
1786
1787 v4l2_ctrl_s_ctrl(dev->ctrl_tx_edid_present, display_present);
1788 v4l2_ctrl_s_ctrl(dev->ctrl_tx_hotplug, display_present);
1789
1790 set_phys_addr:
1791 /* TODO: a proper hotplug detect cycle should be emulated here */
1792 cec_s_phys_addr(dev->cec_rx_adap, phys_addr, false);
1793
1794 for (i = 0; i < MAX_OUTPUTS && dev->cec_tx_adap[i]; i++)
1795 cec_s_phys_addr(dev->cec_tx_adap[i],
1796 dev->display_present[i] ?
1797 v4l2_phys_addr_for_input(phys_addr, i + 1) :
1798 CEC_PHYS_ADDR_INVALID,
1799 false);
1800 return 0;
1801 }
1802
1803 int vidioc_enum_framesizes(struct file *file, void *fh,
1804 struct v4l2_frmsizeenum *fsize)
1805 {
1806 struct vivid_dev *dev = video_drvdata(file);
1807
1808 if (!vivid_is_webcam(dev) && !dev->has_scaler_cap)
1809 return -EINVAL;
1810 if (vivid_get_format(dev, fsize->pixel_format) == NULL)
1811 return -EINVAL;
1812 if (vivid_is_webcam(dev)) {
1813 if (fsize->index >= ARRAY_SIZE(webcam_sizes))
1814 return -EINVAL;
1815 fsize->type = V4L2_FRMSIZE_TYPE_DISCRETE;
1816 fsize->discrete = webcam_sizes[fsize->index];
1817 return 0;
1818 }
1819 if (fsize->index)
1820 return -EINVAL;
1821 fsize->type = V4L2_FRMSIZE_TYPE_STEPWISE;
1822 fsize->stepwise.min_width = MIN_WIDTH;
1823 fsize->stepwise.max_width = MAX_WIDTH * MAX_ZOOM;
1824 fsize->stepwise.step_width = 2;
1825 fsize->stepwise.min_height = MIN_HEIGHT;
1826 fsize->stepwise.max_height = MAX_HEIGHT * MAX_ZOOM;
1827 fsize->stepwise.step_height = 2;
1828 return 0;
1829 }
1830
1831 /* timeperframe is arbitrary and continuous */
1832 int vidioc_enum_frameintervals(struct file *file, void *priv,
1833 struct v4l2_frmivalenum *fival)
1834 {
1835 struct vivid_dev *dev = video_drvdata(file);
1836 const struct vivid_fmt *fmt;
1837 int i;
1838
1839 fmt = vivid_get_format(dev, fival->pixel_format);
1840 if (!fmt)
1841 return -EINVAL;
1842
1843 if (!vivid_is_webcam(dev)) {
1844 if (fival->index)
1845 return -EINVAL;
1846 if (fival->width < MIN_WIDTH || fival->width > MAX_WIDTH * MAX_ZOOM)
1847 return -EINVAL;
1848 if (fival->height < MIN_HEIGHT || fival->height > MAX_HEIGHT * MAX_ZOOM)
1849 return -EINVAL;
1850 fival->type = V4L2_FRMIVAL_TYPE_DISCRETE;
1851 fival->discrete = dev->timeperframe_vid_cap;
1852 return 0;
1853 }
1854
1855 for (i = 0; i < ARRAY_SIZE(webcam_sizes); i++)
1856 if (fival->width == webcam_sizes[i].width &&
1857 fival->height == webcam_sizes[i].height)
1858 break;
1859 if (i == ARRAY_SIZE(webcam_sizes))
1860 return -EINVAL;
1861 if (fival->index >= 2 * (VIVID_WEBCAM_SIZES - i))
1862 return -EINVAL;
1863 fival->type = V4L2_FRMIVAL_TYPE_DISCRETE;
1864 fival->discrete = webcam_intervals[fival->index];
1865 return 0;
1866 }
1867
1868 int vivid_vid_cap_g_parm(struct file *file, void *priv,
1869 struct v4l2_streamparm *parm)
1870 {
1871 struct vivid_dev *dev = video_drvdata(file);
1872
1873 if (parm->type != (dev->multiplanar ?
1874 V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE :
1875 V4L2_BUF_TYPE_VIDEO_CAPTURE))
1876 return -EINVAL;
1877
1878 parm->parm.capture.capability = V4L2_CAP_TIMEPERFRAME;
1879 parm->parm.capture.timeperframe = dev->timeperframe_vid_cap;
1880 parm->parm.capture.readbuffers = 1;
1881 return 0;
1882 }
1883
1884 int vivid_vid_cap_s_parm(struct file *file, void *priv,
1885 struct v4l2_streamparm *parm)
1886 {
1887 struct vivid_dev *dev = video_drvdata(file);
1888 unsigned ival_sz = 2 * (VIVID_WEBCAM_SIZES - dev->webcam_size_idx);
1889 struct v4l2_fract tpf;
1890 unsigned i;
1891
1892 if (parm->type != (dev->multiplanar ?
1893 V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE :
1894 V4L2_BUF_TYPE_VIDEO_CAPTURE))
1895 return -EINVAL;
1896 if (!vivid_is_webcam(dev))
1897 return vivid_vid_cap_g_parm(file, priv, parm);
1898
1899 tpf = parm->parm.capture.timeperframe;
1900
1901 if (tpf.denominator == 0)
1902 tpf = webcam_intervals[ival_sz - 1];
1903 for (i = 0; i < ival_sz; i++)
1904 if (V4L2_FRACT_COMPARE(tpf, >=, webcam_intervals[i]))
1905 break;
1906 if (i == ival_sz)
1907 i = ival_sz - 1;
1908 dev->webcam_ival_idx = i;
1909 tpf = webcam_intervals[dev->webcam_ival_idx];
1910
1911 /* resync the thread's timings */
1912 dev->cap_seq_resync = true;
1913 dev->timeperframe_vid_cap = tpf;
1914 parm->parm.capture.capability = V4L2_CAP_TIMEPERFRAME;
1915 parm->parm.capture.timeperframe = tpf;
1916 parm->parm.capture.readbuffers = 1;
1917 return 0;
1918 }
Linux with added FPC-III support