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/prandom.h>
14 #include <linux/v4l2-dv-timings.h>
15 #include <media/v4l2-common.h>
16 #include <media/v4l2-event.h>
17 #include <media/v4l2-dv-timings.h>
18 #include <media/v4l2-rect.h>
19
20 #include "vivid-core.h"
21 #include "vivid-vid-common.h"
22 #include "vivid-kthread-cap.h"
23 #include "vivid-vid-cap.h"
24
25 /* Sizes must be in increasing order */
26 static const struct v4l2_frmsize_discrete webcam_sizes[] = {
27 { 320, 180 },
28 { 320, 240 },
29 { 640, 360 },
30 { 640, 480 },
31 { 1280, 720 },
32 { 1280, 960 },
33 { 1600, 1200 },
34 { 1920, 1080 },
35 { 3840, 2160 },
36 };
37
38 /*
39 * Intervals must be in increasing order.
40 */
41 static const struct v4l2_fract webcam_intervals[] = {
42 { 1, 1 },
43 { 1, 2 },
44 { 1, 4 },
45 { 1, 5 },
46 { 1, 10 },
47 { 2, 25 },
48 { 1, 15 }, /* 7 - maximum for 2160p */
49 { 1, 25 },
50 { 1, 30 }, /* 9 - maximum for 1080p */
51 { 1, 40 },
52 { 1, 50 },
53 { 1, 60 }, /* 12 - maximum for 720p */
54 { 1, 120 },
55 };
56
57 /* Limit maximum FPS rates for high resolutions */
58 #define IVAL_COUNT_720P 12 /* 720p and up is limited to 60 fps */
59 #define IVAL_COUNT_1080P 9 /* 1080p and up is limited to 30 fps */
60 #define IVAL_COUNT_2160P 7 /* 2160p and up is limited to 15 fps */
61
webcam_ival_count(const struct vivid_dev * dev,unsigned int frmsize_idx)62 static inline unsigned int webcam_ival_count(const struct vivid_dev *dev,
63 unsigned int frmsize_idx)
64 {
65 if (webcam_sizes[frmsize_idx].height >= 2160)
66 return IVAL_COUNT_2160P;
67
68 if (webcam_sizes[frmsize_idx].height >= 1080)
69 return IVAL_COUNT_1080P;
70
71 if (webcam_sizes[frmsize_idx].height >= 720)
72 return IVAL_COUNT_720P;
73
74 /* For low resolutions, allow all FPS rates */
75 return ARRAY_SIZE(webcam_intervals);
76 }
77
vid_cap_queue_setup(struct vb2_queue * vq,unsigned * nbuffers,unsigned * nplanes,unsigned sizes[],struct device * alloc_devs[])78 static int vid_cap_queue_setup(struct vb2_queue *vq,
79 unsigned *nbuffers, unsigned *nplanes,
80 unsigned sizes[], struct device *alloc_devs[])
81 {
82 struct vivid_dev *dev = vb2_get_drv_priv(vq);
83 unsigned buffers = tpg_g_buffers(&dev->tpg);
84 unsigned h = dev->fmt_cap_rect.height;
85 unsigned p;
86
87 if (dev->field_cap == V4L2_FIELD_ALTERNATE) {
88 /*
89 * You cannot use read() with FIELD_ALTERNATE since the field
90 * information (TOP/BOTTOM) cannot be passed back to the user.
91 */
92 if (vb2_fileio_is_active(vq))
93 return -EINVAL;
94 }
95
96 if (dev->queue_setup_error) {
97 /*
98 * Error injection: test what happens if queue_setup() returns
99 * an error.
100 */
101 dev->queue_setup_error = false;
102 return -EINVAL;
103 }
104 if (*nplanes) {
105 /*
106 * Check if the number of requested planes match
107 * the number of buffers in the current format. You can't mix that.
108 */
109 if (*nplanes != buffers)
110 return -EINVAL;
111 for (p = 0; p < buffers; p++) {
112 if (sizes[p] < tpg_g_line_width(&dev->tpg, p) * h /
113 dev->fmt_cap->vdownsampling[p] +
114 dev->fmt_cap->data_offset[p])
115 return -EINVAL;
116 }
117 } else {
118 for (p = 0; p < buffers; p++)
119 sizes[p] = (tpg_g_line_width(&dev->tpg, p) * h) /
120 dev->fmt_cap->vdownsampling[p] +
121 dev->fmt_cap->data_offset[p];
122 }
123
124 *nplanes = buffers;
125
126 dprintk(dev, 1, "%s: count=%d\n", __func__, *nbuffers);
127 for (p = 0; p < buffers; p++)
128 dprintk(dev, 1, "%s: size[%u]=%u\n", __func__, p, sizes[p]);
129
130 return 0;
131 }
132
vid_cap_buf_prepare(struct vb2_buffer * vb)133 static int vid_cap_buf_prepare(struct vb2_buffer *vb)
134 {
135 struct vivid_dev *dev = vb2_get_drv_priv(vb->vb2_queue);
136 unsigned long size;
137 unsigned buffers = tpg_g_buffers(&dev->tpg);
138 unsigned p;
139
140 dprintk(dev, 1, "%s\n", __func__);
141
142 if (WARN_ON(NULL == dev->fmt_cap))
143 return -EINVAL;
144
145 if (dev->buf_prepare_error) {
146 /*
147 * Error injection: test what happens if buf_prepare() returns
148 * an error.
149 */
150 dev->buf_prepare_error = false;
151 return -EINVAL;
152 }
153 for (p = 0; p < buffers; p++) {
154 size = (tpg_g_line_width(&dev->tpg, p) *
155 dev->fmt_cap_rect.height) /
156 dev->fmt_cap->vdownsampling[p] +
157 dev->fmt_cap->data_offset[p];
158
159 if (vb2_plane_size(vb, p) < size) {
160 dprintk(dev, 1, "%s data will not fit into plane %u (%lu < %lu)\n",
161 __func__, p, vb2_plane_size(vb, p), size);
162 return -EINVAL;
163 }
164
165 vb2_set_plane_payload(vb, p, size);
166 vb->planes[p].data_offset = dev->fmt_cap->data_offset[p];
167 }
168
169 return 0;
170 }
171
vid_cap_buf_finish(struct vb2_buffer * vb)172 static void vid_cap_buf_finish(struct vb2_buffer *vb)
173 {
174 struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
175 struct vivid_dev *dev = vb2_get_drv_priv(vb->vb2_queue);
176 struct v4l2_timecode *tc = &vbuf->timecode;
177 unsigned fps = 25;
178 unsigned seq = vbuf->sequence;
179
180 if (!vivid_is_sdtv_cap(dev))
181 return;
182
183 /*
184 * Set the timecode. Rarely used, so it is interesting to
185 * test this.
186 */
187 vbuf->flags |= V4L2_BUF_FLAG_TIMECODE;
188 if (dev->std_cap[dev->input] & V4L2_STD_525_60)
189 fps = 30;
190 tc->type = (fps == 30) ? V4L2_TC_TYPE_30FPS : V4L2_TC_TYPE_25FPS;
191 tc->flags = 0;
192 tc->frames = seq % fps;
193 tc->seconds = (seq / fps) % 60;
194 tc->minutes = (seq / (60 * fps)) % 60;
195 tc->hours = (seq / (60 * 60 * fps)) % 24;
196 }
197
vid_cap_buf_queue(struct vb2_buffer * vb)198 static void vid_cap_buf_queue(struct vb2_buffer *vb)
199 {
200 struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
201 struct vivid_dev *dev = vb2_get_drv_priv(vb->vb2_queue);
202 struct vivid_buffer *buf = container_of(vbuf, struct vivid_buffer, vb);
203
204 dprintk(dev, 1, "%s\n", __func__);
205
206 spin_lock(&dev->slock);
207 list_add_tail(&buf->list, &dev->vid_cap_active);
208 spin_unlock(&dev->slock);
209 }
210
vid_cap_start_streaming(struct vb2_queue * vq,unsigned count)211 static int vid_cap_start_streaming(struct vb2_queue *vq, unsigned count)
212 {
213 struct vivid_dev *dev = vb2_get_drv_priv(vq);
214 unsigned i;
215 int err;
216
217 dev->vid_cap_seq_count = 0;
218 dprintk(dev, 1, "%s\n", __func__);
219 for (i = 0; i < MAX_VID_CAP_BUFFERS; i++)
220 dev->must_blank[i] = tpg_g_perc_fill(&dev->tpg) < 100;
221 if (dev->start_streaming_error) {
222 dev->start_streaming_error = false;
223 err = -EINVAL;
224 } else {
225 err = vivid_start_generating_vid_cap(dev, &dev->vid_cap_streaming);
226 }
227 if (err) {
228 struct vivid_buffer *buf, *tmp;
229
230 list_for_each_entry_safe(buf, tmp, &dev->vid_cap_active, list) {
231 list_del(&buf->list);
232 vb2_buffer_done(&buf->vb.vb2_buf,
233 VB2_BUF_STATE_QUEUED);
234 }
235 }
236 return err;
237 }
238
239 /* abort streaming and wait for last buffer */
vid_cap_stop_streaming(struct vb2_queue * vq)240 static void vid_cap_stop_streaming(struct vb2_queue *vq)
241 {
242 struct vivid_dev *dev = vb2_get_drv_priv(vq);
243
244 dprintk(dev, 1, "%s\n", __func__);
245 vivid_stop_generating_vid_cap(dev, &dev->vid_cap_streaming);
246 }
247
vid_cap_buf_request_complete(struct vb2_buffer * vb)248 static void vid_cap_buf_request_complete(struct vb2_buffer *vb)
249 {
250 struct vivid_dev *dev = vb2_get_drv_priv(vb->vb2_queue);
251
252 v4l2_ctrl_request_complete(vb->req_obj.req, &dev->ctrl_hdl_vid_cap);
253 }
254
255 const struct vb2_ops vivid_vid_cap_qops = {
256 .queue_setup = vid_cap_queue_setup,
257 .buf_prepare = vid_cap_buf_prepare,
258 .buf_finish = vid_cap_buf_finish,
259 .buf_queue = vid_cap_buf_queue,
260 .start_streaming = vid_cap_start_streaming,
261 .stop_streaming = vid_cap_stop_streaming,
262 .buf_request_complete = vid_cap_buf_request_complete,
263 };
264
265 /*
266 * Determine the 'picture' quality based on the current TV frequency: either
267 * COLOR for a good 'signal', GRAY (grayscale picture) for a slightly off
268 * signal or NOISE for no signal.
269 */
vivid_update_quality(struct vivid_dev * dev)270 void vivid_update_quality(struct vivid_dev *dev)
271 {
272 unsigned freq_modulus;
273
274 if (dev->input_is_connected_to_output[dev->input]) {
275 /*
276 * The 'noise' will only be replaced by the actual video
277 * if the output video matches the input video settings.
278 */
279 tpg_s_quality(&dev->tpg, TPG_QUAL_NOISE, 0);
280 return;
281 }
282 if (vivid_is_hdmi_cap(dev) &&
283 VIVID_INVALID_SIGNAL(dev->dv_timings_signal_mode[dev->input])) {
284 tpg_s_quality(&dev->tpg, TPG_QUAL_NOISE, 0);
285 return;
286 }
287 if (vivid_is_sdtv_cap(dev) &&
288 VIVID_INVALID_SIGNAL(dev->std_signal_mode[dev->input])) {
289 tpg_s_quality(&dev->tpg, TPG_QUAL_NOISE, 0);
290 return;
291 }
292 if (!vivid_is_tv_cap(dev)) {
293 tpg_s_quality(&dev->tpg, TPG_QUAL_COLOR, 0);
294 return;
295 }
296
297 /*
298 * There is a fake channel every 6 MHz at 49.25, 55.25, etc.
299 * From +/- 0.25 MHz around the channel there is color, and from
300 * +/- 1 MHz there is grayscale (chroma is lost).
301 * Everywhere else it is just noise.
302 */
303 freq_modulus = (dev->tv_freq - 676 /* (43.25-1) * 16 */) % (6 * 16);
304 if (freq_modulus > 2 * 16) {
305 struct rnd_state prng;
306 prandom_seed_state(&prng, dev->tv_freq ^ 0x55);
307 tpg_s_quality(&dev->tpg, TPG_QUAL_NOISE,
308 prandom_u32_state(&prng) & 0x3f);
309 return;
310 }
311 if (freq_modulus < 12 /*0.75 * 16*/ || freq_modulus > 20 /*1.25 * 16*/)
312 tpg_s_quality(&dev->tpg, TPG_QUAL_GRAY, 0);
313 else
314 tpg_s_quality(&dev->tpg, TPG_QUAL_COLOR, 0);
315 }
316
317 /*
318 * Get the current picture quality and the associated afc value.
319 */
vivid_get_quality(struct vivid_dev * dev,s32 * afc)320 static enum tpg_quality vivid_get_quality(struct vivid_dev *dev, s32 *afc)
321 {
322 unsigned freq_modulus;
323
324 if (afc)
325 *afc = 0;
326 if (tpg_g_quality(&dev->tpg) == TPG_QUAL_COLOR ||
327 tpg_g_quality(&dev->tpg) == TPG_QUAL_NOISE)
328 return tpg_g_quality(&dev->tpg);
329
330 /*
331 * There is a fake channel every 6 MHz at 49.25, 55.25, etc.
332 * From +/- 0.25 MHz around the channel there is color, and from
333 * +/- 1 MHz there is grayscale (chroma is lost).
334 * Everywhere else it is just gray.
335 */
336 freq_modulus = (dev->tv_freq - 676 /* (43.25-1) * 16 */) % (6 * 16);
337 if (afc)
338 *afc = freq_modulus - 1 * 16;
339 return TPG_QUAL_GRAY;
340 }
341
vivid_get_video_aspect(const struct vivid_dev * dev)342 enum tpg_video_aspect vivid_get_video_aspect(const struct vivid_dev *dev)
343 {
344 if (vivid_is_sdtv_cap(dev))
345 return dev->std_aspect_ratio[dev->input];
346
347 if (vivid_is_hdmi_cap(dev))
348 return dev->dv_timings_aspect_ratio[dev->input];
349
350 return TPG_VIDEO_ASPECT_IMAGE;
351 }
352
vivid_get_pixel_aspect(const struct vivid_dev * dev)353 static enum tpg_pixel_aspect vivid_get_pixel_aspect(const struct vivid_dev *dev)
354 {
355 if (vivid_is_sdtv_cap(dev))
356 return (dev->std_cap[dev->input] & V4L2_STD_525_60) ?
357 TPG_PIXEL_ASPECT_NTSC : TPG_PIXEL_ASPECT_PAL;
358
359 if (vivid_is_hdmi_cap(dev) &&
360 dev->src_rect.width == 720 && dev->src_rect.height <= 576)
361 return dev->src_rect.height == 480 ?
362 TPG_PIXEL_ASPECT_NTSC : TPG_PIXEL_ASPECT_PAL;
363
364 return TPG_PIXEL_ASPECT_SQUARE;
365 }
366
367 /*
368 * Called whenever the format has to be reset which can occur when
369 * changing inputs, standard, timings, etc.
370 */
vivid_update_format_cap(struct vivid_dev * dev,bool keep_controls)371 void vivid_update_format_cap(struct vivid_dev *dev, bool keep_controls)
372 {
373 struct v4l2_bt_timings *bt = &dev->dv_timings_cap[dev->input].bt;
374 u32 dims[V4L2_CTRL_MAX_DIMS] = {};
375 unsigned size;
376 u64 pixelclock;
377
378 switch (dev->input_type[dev->input]) {
379 case WEBCAM:
380 default:
381 dev->src_rect.width = webcam_sizes[dev->webcam_size_idx].width;
382 dev->src_rect.height = webcam_sizes[dev->webcam_size_idx].height;
383 dev->timeperframe_vid_cap = webcam_intervals[dev->webcam_ival_idx];
384 dev->field_cap = V4L2_FIELD_NONE;
385 tpg_s_rgb_range(&dev->tpg, V4L2_DV_RGB_RANGE_AUTO);
386 break;
387 case TV:
388 case SVID:
389 dev->field_cap = dev->tv_field_cap;
390 dev->src_rect.width = 720;
391 if (dev->std_cap[dev->input] & V4L2_STD_525_60) {
392 dev->src_rect.height = 480;
393 dev->timeperframe_vid_cap = (struct v4l2_fract) { 1001, 30000 };
394 dev->service_set_cap = V4L2_SLICED_CAPTION_525;
395 } else {
396 dev->src_rect.height = 576;
397 dev->timeperframe_vid_cap = (struct v4l2_fract) { 1000, 25000 };
398 dev->service_set_cap = V4L2_SLICED_WSS_625 | V4L2_SLICED_TELETEXT_B;
399 }
400 tpg_s_rgb_range(&dev->tpg, V4L2_DV_RGB_RANGE_AUTO);
401 break;
402 case HDMI:
403 dev->src_rect.width = bt->width;
404 dev->src_rect.height = bt->height;
405 size = V4L2_DV_BT_FRAME_WIDTH(bt) * V4L2_DV_BT_FRAME_HEIGHT(bt);
406 if (dev->reduced_fps && can_reduce_fps(bt)) {
407 pixelclock = div_u64(bt->pixelclock * 1000, 1001);
408 bt->flags |= V4L2_DV_FL_REDUCED_FPS;
409 } else {
410 pixelclock = bt->pixelclock;
411 bt->flags &= ~V4L2_DV_FL_REDUCED_FPS;
412 }
413 dev->timeperframe_vid_cap = (struct v4l2_fract) {
414 size / 100, (u32)pixelclock / 100
415 };
416 if (bt->interlaced)
417 dev->field_cap = V4L2_FIELD_ALTERNATE;
418 else
419 dev->field_cap = V4L2_FIELD_NONE;
420
421 /*
422 * We can be called from within s_ctrl, in that case we can't
423 * set/get controls. Luckily we don't need to in that case.
424 */
425 if (keep_controls || !dev->colorspace)
426 break;
427 if (bt->flags & V4L2_DV_FL_IS_CE_VIDEO) {
428 if (bt->width == 720 && bt->height <= 576)
429 v4l2_ctrl_s_ctrl(dev->colorspace, VIVID_CS_170M);
430 else
431 v4l2_ctrl_s_ctrl(dev->colorspace, VIVID_CS_709);
432 v4l2_ctrl_s_ctrl(dev->real_rgb_range_cap, 1);
433 } else {
434 v4l2_ctrl_s_ctrl(dev->colorspace, VIVID_CS_SRGB);
435 v4l2_ctrl_s_ctrl(dev->real_rgb_range_cap, 0);
436 }
437 tpg_s_rgb_range(&dev->tpg, v4l2_ctrl_g_ctrl(dev->rgb_range_cap));
438 break;
439 }
440 vivid_update_quality(dev);
441 tpg_reset_source(&dev->tpg, dev->src_rect.width, dev->src_rect.height, dev->field_cap);
442 dev->crop_cap = dev->src_rect;
443 dev->crop_bounds_cap = dev->src_rect;
444 dev->compose_cap = dev->crop_cap;
445 if (V4L2_FIELD_HAS_T_OR_B(dev->field_cap))
446 dev->compose_cap.height /= 2;
447 dev->fmt_cap_rect = dev->compose_cap;
448 tpg_s_video_aspect(&dev->tpg, vivid_get_video_aspect(dev));
449 tpg_s_pixel_aspect(&dev->tpg, vivid_get_pixel_aspect(dev));
450 tpg_update_mv_step(&dev->tpg);
451
452 /*
453 * We can be called from within s_ctrl, in that case we can't
454 * modify controls. Luckily we don't need to in that case.
455 */
456 if (keep_controls)
457 return;
458
459 dims[0] = DIV_ROUND_UP(dev->src_rect.height, PIXEL_ARRAY_DIV);
460 dims[1] = DIV_ROUND_UP(dev->src_rect.width, PIXEL_ARRAY_DIV);
461 v4l2_ctrl_modify_dimensions(dev->pixel_array, dims);
462 }
463
464 /* Map the field to something that is valid for the current input */
vivid_field_cap(struct vivid_dev * dev,enum v4l2_field field)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
vivid_colorspace_cap(struct vivid_dev * dev)488 static unsigned vivid_colorspace_cap(struct vivid_dev *dev)
489 {
490 if (!vivid_input_is_connected_to(dev))
491 return tpg_g_colorspace(&dev->tpg);
492 return dev->colorspace_out;
493 }
494
vivid_xfer_func_cap(struct vivid_dev * dev)495 static unsigned vivid_xfer_func_cap(struct vivid_dev *dev)
496 {
497 if (!vivid_input_is_connected_to(dev))
498 return tpg_g_xfer_func(&dev->tpg);
499 return dev->xfer_func_out;
500 }
501
vivid_ycbcr_enc_cap(struct vivid_dev * dev)502 static unsigned vivid_ycbcr_enc_cap(struct vivid_dev *dev)
503 {
504 if (!vivid_input_is_connected_to(dev))
505 return tpg_g_ycbcr_enc(&dev->tpg);
506 return dev->ycbcr_enc_out;
507 }
508
vivid_hsv_enc_cap(struct vivid_dev * dev)509 static unsigned int vivid_hsv_enc_cap(struct vivid_dev *dev)
510 {
511 if (!vivid_input_is_connected_to(dev))
512 return tpg_g_hsv_enc(&dev->tpg);
513 return dev->hsv_enc_out;
514 }
515
vivid_quantization_cap(struct vivid_dev * dev)516 static unsigned vivid_quantization_cap(struct vivid_dev *dev)
517 {
518 if (!vivid_input_is_connected_to(dev))
519 return tpg_g_quantization(&dev->tpg);
520 return dev->quantization_out;
521 }
522
vivid_g_fmt_vid_cap(struct file * file,void * priv,struct v4l2_format * f)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
vivid_try_fmt_vid_cap(struct file * file,void * priv,struct v4l2_format * f)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 bool user_set_csc = !!(mp->flags & V4L2_PIX_FMT_FLAG_SET_CSC);
564
565 fmt = vivid_get_format(dev, mp->pixelformat);
566 if (!fmt) {
567 dprintk(dev, 1, "Fourcc format (0x%08x) unknown.\n",
568 mp->pixelformat);
569 mp->pixelformat = V4L2_PIX_FMT_YUYV;
570 fmt = vivid_get_format(dev, mp->pixelformat);
571 }
572
573 mp->field = vivid_field_cap(dev, mp->field);
574 if (vivid_is_webcam(dev)) {
575 const struct v4l2_frmsize_discrete *sz =
576 v4l2_find_nearest_size(webcam_sizes,
577 ARRAY_SIZE(webcam_sizes), width,
578 height, mp->width, mp->height);
579
580 w = sz->width;
581 h = sz->height;
582 } else if (vivid_is_sdtv_cap(dev)) {
583 w = 720;
584 h = (dev->std_cap[dev->input] & V4L2_STD_525_60) ? 480 : 576;
585 } else {
586 w = dev->src_rect.width;
587 h = dev->src_rect.height;
588 }
589 if (V4L2_FIELD_HAS_T_OR_B(mp->field))
590 factor = 2;
591 if (vivid_is_webcam(dev) ||
592 (!dev->has_scaler_cap && !dev->has_crop_cap && !dev->has_compose_cap)) {
593 mp->width = w;
594 mp->height = h / factor;
595 } else {
596 struct v4l2_rect r = { 0, 0, mp->width, mp->height * factor };
597
598 v4l2_rect_set_min_size(&r, &vivid_min_rect);
599 v4l2_rect_set_max_size(&r, &vivid_max_rect);
600 if (dev->has_scaler_cap && !dev->has_compose_cap) {
601 struct v4l2_rect max_r = { 0, 0, MAX_ZOOM * w, MAX_ZOOM * h };
602
603 v4l2_rect_set_max_size(&r, &max_r);
604 } else if (!dev->has_scaler_cap && dev->has_crop_cap && !dev->has_compose_cap) {
605 v4l2_rect_set_max_size(&r, &dev->src_rect);
606 } else if (!dev->has_scaler_cap && !dev->has_crop_cap) {
607 v4l2_rect_set_min_size(&r, &dev->src_rect);
608 }
609 mp->width = r.width;
610 mp->height = r.height / factor;
611 }
612
613 /* This driver supports custom bytesperline values */
614
615 mp->num_planes = fmt->buffers;
616 for (p = 0; p < fmt->buffers; p++) {
617 /* Calculate the minimum supported bytesperline value */
618 bytesperline = (mp->width * fmt->bit_depth[p]) >> 3;
619 /* Calculate the maximum supported bytesperline value */
620 max_bpl = (MAX_ZOOM * MAX_WIDTH * fmt->bit_depth[p]) >> 3;
621
622 if (pfmt[p].bytesperline > max_bpl)
623 pfmt[p].bytesperline = max_bpl;
624 if (pfmt[p].bytesperline < bytesperline)
625 pfmt[p].bytesperline = bytesperline;
626
627 pfmt[p].sizeimage = (pfmt[p].bytesperline * mp->height) /
628 fmt->vdownsampling[p] + fmt->data_offset[p];
629
630 memset(pfmt[p].reserved, 0, sizeof(pfmt[p].reserved));
631 }
632 for (p = fmt->buffers; p < fmt->planes; p++)
633 pfmt[0].sizeimage += (pfmt[0].bytesperline * mp->height *
634 (fmt->bit_depth[p] / fmt->vdownsampling[p])) /
635 (fmt->bit_depth[0] / fmt->vdownsampling[0]);
636
637 if (!user_set_csc || !v4l2_is_colorspace_valid(mp->colorspace))
638 mp->colorspace = vivid_colorspace_cap(dev);
639
640 if (!user_set_csc || !v4l2_is_xfer_func_valid(mp->xfer_func))
641 mp->xfer_func = vivid_xfer_func_cap(dev);
642
643 if (fmt->color_enc == TGP_COLOR_ENC_HSV) {
644 if (!user_set_csc || !v4l2_is_hsv_enc_valid(mp->hsv_enc))
645 mp->hsv_enc = vivid_hsv_enc_cap(dev);
646 } else if (fmt->color_enc == TGP_COLOR_ENC_YCBCR) {
647 if (!user_set_csc || !v4l2_is_ycbcr_enc_valid(mp->ycbcr_enc))
648 mp->ycbcr_enc = vivid_ycbcr_enc_cap(dev);
649 } else {
650 mp->ycbcr_enc = vivid_ycbcr_enc_cap(dev);
651 }
652
653 if (fmt->color_enc == TGP_COLOR_ENC_YCBCR ||
654 fmt->color_enc == TGP_COLOR_ENC_RGB) {
655 if (!user_set_csc || !v4l2_is_quant_valid(mp->quantization))
656 mp->quantization = vivid_quantization_cap(dev);
657 } else {
658 mp->quantization = vivid_quantization_cap(dev);
659 }
660
661 memset(mp->reserved, 0, sizeof(mp->reserved));
662 return 0;
663 }
664
vivid_s_fmt_vid_cap(struct file * file,void * priv,struct v4l2_format * f)665 int vivid_s_fmt_vid_cap(struct file *file, void *priv,
666 struct v4l2_format *f)
667 {
668 struct v4l2_pix_format_mplane *mp = &f->fmt.pix_mp;
669 struct vivid_dev *dev = video_drvdata(file);
670 struct v4l2_rect *crop = &dev->crop_cap;
671 struct v4l2_rect *compose = &dev->compose_cap;
672 struct vb2_queue *q = &dev->vb_vid_cap_q;
673 int ret = vivid_try_fmt_vid_cap(file, priv, f);
674 unsigned factor = 1;
675 unsigned p;
676 unsigned i;
677
678 if (ret < 0)
679 return ret;
680
681 if (vb2_is_busy(q)) {
682 dprintk(dev, 1, "%s device busy\n", __func__);
683 return -EBUSY;
684 }
685
686 dev->fmt_cap = vivid_get_format(dev, mp->pixelformat);
687 if (V4L2_FIELD_HAS_T_OR_B(mp->field))
688 factor = 2;
689
690 /* Note: the webcam input doesn't support scaling, cropping or composing */
691
692 if (!vivid_is_webcam(dev) &&
693 (dev->has_scaler_cap || dev->has_crop_cap || dev->has_compose_cap)) {
694 struct v4l2_rect r = { 0, 0, mp->width, mp->height };
695
696 if (dev->has_scaler_cap) {
697 if (dev->has_compose_cap)
698 v4l2_rect_map_inside(compose, &r);
699 else
700 *compose = r;
701 if (dev->has_crop_cap && !dev->has_compose_cap) {
702 struct v4l2_rect min_r = {
703 0, 0,
704 r.width / MAX_ZOOM,
705 factor * r.height / MAX_ZOOM
706 };
707 struct v4l2_rect max_r = {
708 0, 0,
709 r.width * MAX_ZOOM,
710 factor * r.height * MAX_ZOOM
711 };
712
713 v4l2_rect_set_min_size(crop, &min_r);
714 v4l2_rect_set_max_size(crop, &max_r);
715 v4l2_rect_map_inside(crop, &dev->crop_bounds_cap);
716 } else if (dev->has_crop_cap) {
717 struct v4l2_rect min_r = {
718 0, 0,
719 compose->width / MAX_ZOOM,
720 factor * compose->height / MAX_ZOOM
721 };
722 struct v4l2_rect max_r = {
723 0, 0,
724 compose->width * MAX_ZOOM,
725 factor * compose->height * MAX_ZOOM
726 };
727
728 v4l2_rect_set_min_size(crop, &min_r);
729 v4l2_rect_set_max_size(crop, &max_r);
730 v4l2_rect_map_inside(crop, &dev->crop_bounds_cap);
731 }
732 } else if (dev->has_crop_cap && !dev->has_compose_cap) {
733 r.height *= factor;
734 v4l2_rect_set_size_to(crop, &r);
735 v4l2_rect_map_inside(crop, &dev->crop_bounds_cap);
736 r = *crop;
737 r.height /= factor;
738 v4l2_rect_set_size_to(compose, &r);
739 } else if (!dev->has_crop_cap) {
740 v4l2_rect_map_inside(compose, &r);
741 } else {
742 r.height *= factor;
743 v4l2_rect_set_max_size(crop, &r);
744 v4l2_rect_map_inside(crop, &dev->crop_bounds_cap);
745 compose->top *= factor;
746 compose->height *= factor;
747 v4l2_rect_set_size_to(compose, crop);
748 v4l2_rect_map_inside(compose, &r);
749 compose->top /= factor;
750 compose->height /= factor;
751 }
752 } else if (vivid_is_webcam(dev)) {
753 unsigned int ival_sz = webcam_ival_count(dev, dev->webcam_size_idx);
754
755 /* Guaranteed to be a match */
756 for (i = 0; i < ARRAY_SIZE(webcam_sizes); i++)
757 if (webcam_sizes[i].width == mp->width &&
758 webcam_sizes[i].height == mp->height)
759 break;
760 dev->webcam_size_idx = i;
761 if (dev->webcam_ival_idx >= ival_sz)
762 dev->webcam_ival_idx = ival_sz - 1;
763 vivid_update_format_cap(dev, false);
764 } else {
765 struct v4l2_rect r = { 0, 0, mp->width, mp->height };
766
767 v4l2_rect_set_size_to(compose, &r);
768 r.height *= factor;
769 v4l2_rect_set_size_to(crop, &r);
770 }
771
772 dev->fmt_cap_rect.width = mp->width;
773 dev->fmt_cap_rect.height = mp->height;
774 tpg_s_buf_height(&dev->tpg, mp->height);
775 tpg_s_fourcc(&dev->tpg, dev->fmt_cap->fourcc);
776 for (p = 0; p < tpg_g_buffers(&dev->tpg); p++)
777 tpg_s_bytesperline(&dev->tpg, p, mp->plane_fmt[p].bytesperline);
778 dev->field_cap = mp->field;
779 if (dev->field_cap == V4L2_FIELD_ALTERNATE)
780 tpg_s_field(&dev->tpg, V4L2_FIELD_TOP, true);
781 else
782 tpg_s_field(&dev->tpg, dev->field_cap, false);
783 tpg_s_crop_compose(&dev->tpg, &dev->crop_cap, &dev->compose_cap);
784 if (vivid_is_sdtv_cap(dev))
785 dev->tv_field_cap = mp->field;
786 tpg_update_mv_step(&dev->tpg);
787 dev->tpg.colorspace = mp->colorspace;
788 dev->tpg.xfer_func = mp->xfer_func;
789 if (dev->fmt_cap->color_enc == TGP_COLOR_ENC_YCBCR)
790 dev->tpg.ycbcr_enc = mp->ycbcr_enc;
791 else
792 dev->tpg.hsv_enc = mp->hsv_enc;
793 dev->tpg.quantization = mp->quantization;
794
795 return 0;
796 }
797
vidioc_g_fmt_vid_cap_mplane(struct file * file,void * priv,struct v4l2_format * f)798 int vidioc_g_fmt_vid_cap_mplane(struct file *file, void *priv,
799 struct v4l2_format *f)
800 {
801 struct vivid_dev *dev = video_drvdata(file);
802
803 if (!dev->multiplanar)
804 return -ENOTTY;
805 return vivid_g_fmt_vid_cap(file, priv, f);
806 }
807
vidioc_try_fmt_vid_cap_mplane(struct file * file,void * priv,struct v4l2_format * f)808 int vidioc_try_fmt_vid_cap_mplane(struct file *file, void *priv,
809 struct v4l2_format *f)
810 {
811 struct vivid_dev *dev = video_drvdata(file);
812
813 if (!dev->multiplanar)
814 return -ENOTTY;
815 return vivid_try_fmt_vid_cap(file, priv, f);
816 }
817
vidioc_s_fmt_vid_cap_mplane(struct file * file,void * priv,struct v4l2_format * f)818 int vidioc_s_fmt_vid_cap_mplane(struct file *file, void *priv,
819 struct v4l2_format *f)
820 {
821 struct vivid_dev *dev = video_drvdata(file);
822
823 if (!dev->multiplanar)
824 return -ENOTTY;
825 return vivid_s_fmt_vid_cap(file, priv, f);
826 }
827
vidioc_g_fmt_vid_cap(struct file * file,void * priv,struct v4l2_format * f)828 int vidioc_g_fmt_vid_cap(struct file *file, void *priv,
829 struct v4l2_format *f)
830 {
831 struct vivid_dev *dev = video_drvdata(file);
832
833 if (dev->multiplanar)
834 return -ENOTTY;
835 return fmt_sp2mp_func(file, priv, f, vivid_g_fmt_vid_cap);
836 }
837
vidioc_try_fmt_vid_cap(struct file * file,void * priv,struct v4l2_format * f)838 int vidioc_try_fmt_vid_cap(struct file *file, void *priv,
839 struct v4l2_format *f)
840 {
841 struct vivid_dev *dev = video_drvdata(file);
842
843 if (dev->multiplanar)
844 return -ENOTTY;
845 return fmt_sp2mp_func(file, priv, f, vivid_try_fmt_vid_cap);
846 }
847
vidioc_s_fmt_vid_cap(struct file * file,void * priv,struct v4l2_format * f)848 int vidioc_s_fmt_vid_cap(struct file *file, void *priv,
849 struct v4l2_format *f)
850 {
851 struct vivid_dev *dev = video_drvdata(file);
852
853 if (dev->multiplanar)
854 return -ENOTTY;
855 return fmt_sp2mp_func(file, priv, f, vivid_s_fmt_vid_cap);
856 }
857
vivid_vid_cap_g_selection(struct file * file,void * priv,struct v4l2_selection * sel)858 int vivid_vid_cap_g_selection(struct file *file, void *priv,
859 struct v4l2_selection *sel)
860 {
861 struct vivid_dev *dev = video_drvdata(file);
862
863 if (!dev->has_crop_cap && !dev->has_compose_cap)
864 return -ENOTTY;
865 if (sel->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
866 return -EINVAL;
867 if (vivid_is_webcam(dev))
868 return -ENODATA;
869
870 sel->r.left = sel->r.top = 0;
871 switch (sel->target) {
872 case V4L2_SEL_TGT_CROP:
873 if (!dev->has_crop_cap)
874 return -EINVAL;
875 sel->r = dev->crop_cap;
876 break;
877 case V4L2_SEL_TGT_CROP_DEFAULT:
878 case V4L2_SEL_TGT_CROP_BOUNDS:
879 if (!dev->has_crop_cap)
880 return -EINVAL;
881 sel->r = dev->src_rect;
882 break;
883 case V4L2_SEL_TGT_COMPOSE_BOUNDS:
884 if (!dev->has_compose_cap)
885 return -EINVAL;
886 sel->r = vivid_max_rect;
887 break;
888 case V4L2_SEL_TGT_COMPOSE:
889 if (!dev->has_compose_cap)
890 return -EINVAL;
891 sel->r = dev->compose_cap;
892 break;
893 case V4L2_SEL_TGT_COMPOSE_DEFAULT:
894 if (!dev->has_compose_cap)
895 return -EINVAL;
896 sel->r = dev->fmt_cap_rect;
897 break;
898 default:
899 return -EINVAL;
900 }
901 return 0;
902 }
903
vivid_vid_cap_s_selection(struct file * file,void * priv,struct v4l2_selection * s)904 int vivid_vid_cap_s_selection(struct file *file, void *priv, struct v4l2_selection *s)
905 {
906 struct vivid_dev *dev = video_drvdata(file);
907 struct v4l2_rect *crop = &dev->crop_cap;
908 struct v4l2_rect *compose = &dev->compose_cap;
909 unsigned factor = V4L2_FIELD_HAS_T_OR_B(dev->field_cap) ? 2 : 1;
910 int ret;
911
912 if (!dev->has_crop_cap && !dev->has_compose_cap)
913 return -ENOTTY;
914 if (s->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
915 return -EINVAL;
916 if (vivid_is_webcam(dev))
917 return -ENODATA;
918
919 switch (s->target) {
920 case V4L2_SEL_TGT_CROP:
921 if (!dev->has_crop_cap)
922 return -EINVAL;
923 ret = vivid_vid_adjust_sel(s->flags, &s->r);
924 if (ret)
925 return ret;
926 v4l2_rect_set_min_size(&s->r, &vivid_min_rect);
927 v4l2_rect_set_max_size(&s->r, &dev->src_rect);
928 v4l2_rect_map_inside(&s->r, &dev->crop_bounds_cap);
929 s->r.top /= factor;
930 s->r.height /= factor;
931 if (dev->has_scaler_cap) {
932 struct v4l2_rect fmt = dev->fmt_cap_rect;
933 struct v4l2_rect max_rect = {
934 0, 0,
935 s->r.width * MAX_ZOOM,
936 s->r.height * MAX_ZOOM
937 };
938 struct v4l2_rect min_rect = {
939 0, 0,
940 s->r.width / MAX_ZOOM,
941 s->r.height / MAX_ZOOM
942 };
943
944 v4l2_rect_set_min_size(&fmt, &min_rect);
945 if (!dev->has_compose_cap)
946 v4l2_rect_set_max_size(&fmt, &max_rect);
947 if (!v4l2_rect_same_size(&dev->fmt_cap_rect, &fmt) &&
948 vb2_is_busy(&dev->vb_vid_cap_q))
949 return -EBUSY;
950 if (dev->has_compose_cap) {
951 v4l2_rect_set_min_size(compose, &min_rect);
952 v4l2_rect_set_max_size(compose, &max_rect);
953 }
954 v4l2_rect_map_inside(compose, &fmt);
955 dev->fmt_cap_rect = fmt;
956 tpg_s_buf_height(&dev->tpg, fmt.height);
957 } else if (dev->has_compose_cap) {
958 struct v4l2_rect fmt = dev->fmt_cap_rect;
959
960 v4l2_rect_set_min_size(&fmt, &s->r);
961 if (!v4l2_rect_same_size(&dev->fmt_cap_rect, &fmt) &&
962 vb2_is_busy(&dev->vb_vid_cap_q))
963 return -EBUSY;
964 dev->fmt_cap_rect = fmt;
965 tpg_s_buf_height(&dev->tpg, fmt.height);
966 v4l2_rect_set_size_to(compose, &s->r);
967 v4l2_rect_map_inside(compose, &dev->fmt_cap_rect);
968 } else {
969 if (!v4l2_rect_same_size(&s->r, &dev->fmt_cap_rect) &&
970 vb2_is_busy(&dev->vb_vid_cap_q))
971 return -EBUSY;
972 v4l2_rect_set_size_to(&dev->fmt_cap_rect, &s->r);
973 v4l2_rect_set_size_to(compose, &s->r);
974 v4l2_rect_map_inside(compose, &dev->fmt_cap_rect);
975 tpg_s_buf_height(&dev->tpg, dev->fmt_cap_rect.height);
976 }
977 s->r.top *= factor;
978 s->r.height *= factor;
979 *crop = s->r;
980 break;
981 case V4L2_SEL_TGT_COMPOSE:
982 if (!dev->has_compose_cap)
983 return -EINVAL;
984 ret = vivid_vid_adjust_sel(s->flags, &s->r);
985 if (ret)
986 return ret;
987 v4l2_rect_set_min_size(&s->r, &vivid_min_rect);
988 v4l2_rect_set_max_size(&s->r, &dev->fmt_cap_rect);
989 if (dev->has_scaler_cap) {
990 struct v4l2_rect max_rect = {
991 0, 0,
992 dev->src_rect.width * MAX_ZOOM,
993 (dev->src_rect.height / factor) * MAX_ZOOM
994 };
995
996 v4l2_rect_set_max_size(&s->r, &max_rect);
997 if (dev->has_crop_cap) {
998 struct v4l2_rect min_rect = {
999 0, 0,
1000 s->r.width / MAX_ZOOM,
1001 (s->r.height * factor) / MAX_ZOOM
1002 };
1003 struct v4l2_rect max_rect = {
1004 0, 0,
1005 s->r.width * MAX_ZOOM,
1006 (s->r.height * factor) * MAX_ZOOM
1007 };
1008
1009 v4l2_rect_set_min_size(crop, &min_rect);
1010 v4l2_rect_set_max_size(crop, &max_rect);
1011 v4l2_rect_map_inside(crop, &dev->crop_bounds_cap);
1012 }
1013 } else if (dev->has_crop_cap) {
1014 s->r.top *= factor;
1015 s->r.height *= factor;
1016 v4l2_rect_set_max_size(&s->r, &dev->src_rect);
1017 v4l2_rect_set_size_to(crop, &s->r);
1018 v4l2_rect_map_inside(crop, &dev->crop_bounds_cap);
1019 s->r.top /= factor;
1020 s->r.height /= factor;
1021 } else {
1022 v4l2_rect_set_size_to(&s->r, &dev->src_rect);
1023 s->r.height /= factor;
1024 }
1025 v4l2_rect_map_inside(&s->r, &dev->fmt_cap_rect);
1026 *compose = s->r;
1027 break;
1028 default:
1029 return -EINVAL;
1030 }
1031
1032 tpg_s_crop_compose(&dev->tpg, crop, compose);
1033 return 0;
1034 }
1035
vivid_vid_cap_g_pixelaspect(struct file * file,void * priv,int type,struct v4l2_fract * f)1036 int vivid_vid_cap_g_pixelaspect(struct file *file, void *priv,
1037 int type, struct v4l2_fract *f)
1038 {
1039 struct vivid_dev *dev = video_drvdata(file);
1040
1041 if (type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
1042 return -EINVAL;
1043
1044 switch (vivid_get_pixel_aspect(dev)) {
1045 case TPG_PIXEL_ASPECT_NTSC:
1046 f->numerator = 11;
1047 f->denominator = 10;
1048 break;
1049 case TPG_PIXEL_ASPECT_PAL:
1050 f->numerator = 54;
1051 f->denominator = 59;
1052 break;
1053 default:
1054 break;
1055 }
1056 return 0;
1057 }
1058
1059 static const struct v4l2_audio vivid_audio_inputs[] = {
1060 { 0, "TV", V4L2_AUDCAP_STEREO },
1061 { 1, "Line-In", V4L2_AUDCAP_STEREO },
1062 };
1063
vidioc_enum_input(struct file * file,void * priv,struct v4l2_input * inp)1064 int vidioc_enum_input(struct file *file, void *priv,
1065 struct v4l2_input *inp)
1066 {
1067 struct vivid_dev *dev = video_drvdata(file);
1068
1069 if (inp->index >= dev->num_inputs)
1070 return -EINVAL;
1071
1072 inp->type = V4L2_INPUT_TYPE_CAMERA;
1073 switch (dev->input_type[inp->index]) {
1074 case WEBCAM:
1075 snprintf(inp->name, sizeof(inp->name), "Webcam %03u-%u",
1076 dev->inst, dev->input_name_counter[inp->index]);
1077 inp->capabilities = 0;
1078 break;
1079 case TV:
1080 snprintf(inp->name, sizeof(inp->name), "TV %03u-%u",
1081 dev->inst, dev->input_name_counter[inp->index]);
1082 inp->type = V4L2_INPUT_TYPE_TUNER;
1083 inp->std = V4L2_STD_ALL;
1084 if (dev->has_audio_inputs)
1085 inp->audioset = (1 << ARRAY_SIZE(vivid_audio_inputs)) - 1;
1086 inp->capabilities = V4L2_IN_CAP_STD;
1087 break;
1088 case SVID:
1089 snprintf(inp->name, sizeof(inp->name), "S-Video %03u-%u",
1090 dev->inst, dev->input_name_counter[inp->index]);
1091 inp->std = V4L2_STD_ALL;
1092 if (dev->has_audio_inputs)
1093 inp->audioset = (1 << ARRAY_SIZE(vivid_audio_inputs)) - 1;
1094 inp->capabilities = V4L2_IN_CAP_STD;
1095 break;
1096 case HDMI:
1097 snprintf(inp->name, sizeof(inp->name), "HDMI %03u-%u",
1098 dev->inst, dev->input_name_counter[inp->index]);
1099 inp->capabilities = V4L2_IN_CAP_DV_TIMINGS;
1100 if (dev->edid_blocks == 0 ||
1101 dev->dv_timings_signal_mode[dev->input] == NO_SIGNAL)
1102 inp->status |= V4L2_IN_ST_NO_SIGNAL;
1103 else if (dev->dv_timings_signal_mode[dev->input] == NO_LOCK ||
1104 dev->dv_timings_signal_mode[dev->input] == OUT_OF_RANGE)
1105 inp->status |= V4L2_IN_ST_NO_H_LOCK;
1106 break;
1107 }
1108 if (dev->sensor_hflip)
1109 inp->status |= V4L2_IN_ST_HFLIP;
1110 if (dev->sensor_vflip)
1111 inp->status |= V4L2_IN_ST_VFLIP;
1112 if (dev->input == inp->index && vivid_is_sdtv_cap(dev)) {
1113 if (dev->std_signal_mode[dev->input] == NO_SIGNAL) {
1114 inp->status |= V4L2_IN_ST_NO_SIGNAL;
1115 } else if (dev->std_signal_mode[dev->input] == NO_LOCK) {
1116 inp->status |= V4L2_IN_ST_NO_H_LOCK;
1117 } else if (vivid_is_tv_cap(dev)) {
1118 switch (tpg_g_quality(&dev->tpg)) {
1119 case TPG_QUAL_GRAY:
1120 inp->status |= V4L2_IN_ST_COLOR_KILL;
1121 break;
1122 case TPG_QUAL_NOISE:
1123 inp->status |= V4L2_IN_ST_NO_H_LOCK;
1124 break;
1125 default:
1126 break;
1127 }
1128 }
1129 }
1130 return 0;
1131 }
1132
vidioc_g_input(struct file * file,void * priv,unsigned * i)1133 int vidioc_g_input(struct file *file, void *priv, unsigned *i)
1134 {
1135 struct vivid_dev *dev = video_drvdata(file);
1136
1137 *i = dev->input;
1138 return 0;
1139 }
1140
vidioc_s_input(struct file * file,void * priv,unsigned i)1141 int vidioc_s_input(struct file *file, void *priv, unsigned i)
1142 {
1143 struct vivid_dev *dev = video_drvdata(file);
1144 struct v4l2_bt_timings *bt = &dev->dv_timings_cap[dev->input].bt;
1145 unsigned brightness;
1146
1147 if (i >= dev->num_inputs)
1148 return -EINVAL;
1149
1150 if (i == dev->input)
1151 return 0;
1152
1153 if (vb2_is_busy(&dev->vb_vid_cap_q) ||
1154 vb2_is_busy(&dev->vb_vbi_cap_q) ||
1155 vb2_is_busy(&dev->vb_meta_cap_q))
1156 return -EBUSY;
1157
1158 dev->input = i;
1159 dev->vid_cap_dev.tvnorms = 0;
1160 if (dev->input_type[i] == TV || dev->input_type[i] == SVID) {
1161 dev->tv_audio_input = (dev->input_type[i] == TV) ? 0 : 1;
1162 dev->vid_cap_dev.tvnorms = V4L2_STD_ALL;
1163 }
1164 dev->vbi_cap_dev.tvnorms = dev->vid_cap_dev.tvnorms;
1165 dev->meta_cap_dev.tvnorms = dev->vid_cap_dev.tvnorms;
1166 vivid_update_format_cap(dev, false);
1167
1168 if (dev->colorspace) {
1169 switch (dev->input_type[i]) {
1170 case WEBCAM:
1171 v4l2_ctrl_s_ctrl(dev->colorspace, VIVID_CS_SRGB);
1172 break;
1173 case TV:
1174 case SVID:
1175 v4l2_ctrl_s_ctrl(dev->colorspace, VIVID_CS_170M);
1176 break;
1177 case HDMI:
1178 if (bt->flags & V4L2_DV_FL_IS_CE_VIDEO) {
1179 if (dev->src_rect.width == 720 && dev->src_rect.height <= 576)
1180 v4l2_ctrl_s_ctrl(dev->colorspace, VIVID_CS_170M);
1181 else
1182 v4l2_ctrl_s_ctrl(dev->colorspace, VIVID_CS_709);
1183 } else {
1184 v4l2_ctrl_s_ctrl(dev->colorspace, VIVID_CS_SRGB);
1185 }
1186 break;
1187 }
1188 }
1189
1190 /*
1191 * Modify the brightness range depending on the input.
1192 * This makes it easy to use vivid to test if applications can
1193 * handle control range modifications and is also how this is
1194 * typically used in practice as different inputs may be hooked
1195 * up to different receivers with different control ranges.
1196 */
1197 brightness = 128 * i + dev->input_brightness[i];
1198 v4l2_ctrl_modify_range(dev->brightness,
1199 128 * i, 255 + 128 * i, 1, 128 + 128 * i);
1200 v4l2_ctrl_s_ctrl(dev->brightness, brightness);
1201
1202 /* Restore per-input states. */
1203 v4l2_ctrl_activate(dev->ctrl_dv_timings_signal_mode,
1204 vivid_is_hdmi_cap(dev));
1205 v4l2_ctrl_activate(dev->ctrl_dv_timings, vivid_is_hdmi_cap(dev) &&
1206 dev->dv_timings_signal_mode[dev->input] ==
1207 SELECTED_DV_TIMINGS);
1208 v4l2_ctrl_activate(dev->ctrl_std_signal_mode, vivid_is_sdtv_cap(dev));
1209 v4l2_ctrl_activate(dev->ctrl_standard, vivid_is_sdtv_cap(dev) &&
1210 dev->std_signal_mode[dev->input]);
1211
1212 if (vivid_is_hdmi_cap(dev)) {
1213 v4l2_ctrl_s_ctrl(dev->ctrl_dv_timings_signal_mode,
1214 dev->dv_timings_signal_mode[dev->input]);
1215 v4l2_ctrl_s_ctrl(dev->ctrl_dv_timings,
1216 dev->query_dv_timings[dev->input]);
1217 } else if (vivid_is_sdtv_cap(dev)) {
1218 v4l2_ctrl_s_ctrl(dev->ctrl_std_signal_mode,
1219 dev->std_signal_mode[dev->input]);
1220 v4l2_ctrl_s_ctrl(dev->ctrl_standard,
1221 dev->std_signal_mode[dev->input]);
1222 }
1223
1224 return 0;
1225 }
1226
vidioc_enumaudio(struct file * file,void * priv,struct v4l2_audio * vin)1227 int vidioc_enumaudio(struct file *file, void *priv, struct v4l2_audio *vin)
1228 {
1229 if (vin->index >= ARRAY_SIZE(vivid_audio_inputs))
1230 return -EINVAL;
1231 *vin = vivid_audio_inputs[vin->index];
1232 return 0;
1233 }
1234
vidioc_g_audio(struct file * file,void * priv,struct v4l2_audio * vin)1235 int vidioc_g_audio(struct file *file, void *priv, struct v4l2_audio *vin)
1236 {
1237 struct vivid_dev *dev = video_drvdata(file);
1238
1239 if (!vivid_is_sdtv_cap(dev))
1240 return -EINVAL;
1241 *vin = vivid_audio_inputs[dev->tv_audio_input];
1242 return 0;
1243 }
1244
vidioc_s_audio(struct file * file,void * priv,const struct v4l2_audio * vin)1245 int vidioc_s_audio(struct file *file, void *priv, const struct v4l2_audio *vin)
1246 {
1247 struct vivid_dev *dev = video_drvdata(file);
1248
1249 if (!vivid_is_sdtv_cap(dev))
1250 return -EINVAL;
1251 if (vin->index >= ARRAY_SIZE(vivid_audio_inputs))
1252 return -EINVAL;
1253 dev->tv_audio_input = vin->index;
1254 return 0;
1255 }
1256
vivid_video_g_frequency(struct file * file,void * priv,struct v4l2_frequency * vf)1257 int vivid_video_g_frequency(struct file *file, void *priv, struct v4l2_frequency *vf)
1258 {
1259 struct vivid_dev *dev = video_drvdata(file);
1260
1261 if (vf->tuner != 0)
1262 return -EINVAL;
1263 vf->frequency = dev->tv_freq;
1264 return 0;
1265 }
1266
vivid_video_s_frequency(struct file * file,void * priv,const struct v4l2_frequency * vf)1267 int vivid_video_s_frequency(struct file *file, void *priv, const struct v4l2_frequency *vf)
1268 {
1269 struct vivid_dev *dev = video_drvdata(file);
1270
1271 if (vf->tuner != 0)
1272 return -EINVAL;
1273 dev->tv_freq = clamp_t(unsigned, vf->frequency, MIN_TV_FREQ, MAX_TV_FREQ);
1274 if (vivid_is_tv_cap(dev))
1275 vivid_update_quality(dev);
1276 return 0;
1277 }
1278
vivid_video_s_tuner(struct file * file,void * priv,const struct v4l2_tuner * vt)1279 int vivid_video_s_tuner(struct file *file, void *priv, const struct v4l2_tuner *vt)
1280 {
1281 struct vivid_dev *dev = video_drvdata(file);
1282
1283 if (vt->index != 0)
1284 return -EINVAL;
1285 if (vt->audmode > V4L2_TUNER_MODE_LANG1_LANG2)
1286 return -EINVAL;
1287 dev->tv_audmode = vt->audmode;
1288 return 0;
1289 }
1290
vivid_video_g_tuner(struct file * file,void * priv,struct v4l2_tuner * vt)1291 int vivid_video_g_tuner(struct file *file, void *priv, struct v4l2_tuner *vt)
1292 {
1293 struct vivid_dev *dev = video_drvdata(file);
1294 enum tpg_quality qual;
1295
1296 if (vt->index != 0)
1297 return -EINVAL;
1298
1299 vt->capability = V4L2_TUNER_CAP_NORM | V4L2_TUNER_CAP_STEREO |
1300 V4L2_TUNER_CAP_LANG1 | V4L2_TUNER_CAP_LANG2;
1301 vt->audmode = dev->tv_audmode;
1302 vt->rangelow = MIN_TV_FREQ;
1303 vt->rangehigh = MAX_TV_FREQ;
1304 qual = vivid_get_quality(dev, &vt->afc);
1305 if (qual == TPG_QUAL_COLOR)
1306 vt->signal = 0xffff;
1307 else if (qual == TPG_QUAL_GRAY)
1308 vt->signal = 0x8000;
1309 else
1310 vt->signal = 0;
1311 if (qual == TPG_QUAL_NOISE) {
1312 vt->rxsubchans = 0;
1313 } else if (qual == TPG_QUAL_GRAY) {
1314 vt->rxsubchans = V4L2_TUNER_SUB_MONO;
1315 } else {
1316 unsigned int channel_nr = dev->tv_freq / (6 * 16);
1317 unsigned int options =
1318 (dev->std_cap[dev->input] & V4L2_STD_NTSC_M) ? 4 : 3;
1319
1320 switch (channel_nr % options) {
1321 case 0:
1322 vt->rxsubchans = V4L2_TUNER_SUB_MONO;
1323 break;
1324 case 1:
1325 vt->rxsubchans = V4L2_TUNER_SUB_STEREO;
1326 break;
1327 case 2:
1328 if (dev->std_cap[dev->input] & V4L2_STD_NTSC_M)
1329 vt->rxsubchans = V4L2_TUNER_SUB_MONO | V4L2_TUNER_SUB_SAP;
1330 else
1331 vt->rxsubchans = V4L2_TUNER_SUB_LANG1 | V4L2_TUNER_SUB_LANG2;
1332 break;
1333 case 3:
1334 vt->rxsubchans = V4L2_TUNER_SUB_STEREO | V4L2_TUNER_SUB_SAP;
1335 break;
1336 }
1337 }
1338 strscpy(vt->name, "TV Tuner", sizeof(vt->name));
1339 return 0;
1340 }
1341
1342 /* Must remain in sync with the vivid_ctrl_standard_strings array */
1343 const v4l2_std_id vivid_standard[] = {
1344 V4L2_STD_NTSC_M,
1345 V4L2_STD_NTSC_M_JP,
1346 V4L2_STD_NTSC_M_KR,
1347 V4L2_STD_NTSC_443,
1348 V4L2_STD_PAL_BG | V4L2_STD_PAL_H,
1349 V4L2_STD_PAL_I,
1350 V4L2_STD_PAL_DK,
1351 V4L2_STD_PAL_M,
1352 V4L2_STD_PAL_N,
1353 V4L2_STD_PAL_Nc,
1354 V4L2_STD_PAL_60,
1355 V4L2_STD_SECAM_B | V4L2_STD_SECAM_G | V4L2_STD_SECAM_H,
1356 V4L2_STD_SECAM_DK,
1357 V4L2_STD_SECAM_L,
1358 V4L2_STD_SECAM_LC,
1359 V4L2_STD_UNKNOWN
1360 };
1361
1362 /* Must remain in sync with the vivid_standard array */
1363 const char * const vivid_ctrl_standard_strings[] = {
1364 "NTSC-M",
1365 "NTSC-M-JP",
1366 "NTSC-M-KR",
1367 "NTSC-443",
1368 "PAL-BGH",
1369 "PAL-I",
1370 "PAL-DK",
1371 "PAL-M",
1372 "PAL-N",
1373 "PAL-Nc",
1374 "PAL-60",
1375 "SECAM-BGH",
1376 "SECAM-DK",
1377 "SECAM-L",
1378 "SECAM-Lc",
1379 NULL,
1380 };
1381
vidioc_querystd(struct file * file,void * priv,v4l2_std_id * id)1382 int vidioc_querystd(struct file *file, void *priv, v4l2_std_id *id)
1383 {
1384 struct vivid_dev *dev = video_drvdata(file);
1385 unsigned int last = dev->query_std_last[dev->input];
1386
1387 if (!vivid_is_sdtv_cap(dev))
1388 return -ENODATA;
1389 if (dev->std_signal_mode[dev->input] == NO_SIGNAL ||
1390 dev->std_signal_mode[dev->input] == NO_LOCK) {
1391 *id = V4L2_STD_UNKNOWN;
1392 return 0;
1393 }
1394 if (vivid_is_tv_cap(dev) && tpg_g_quality(&dev->tpg) == TPG_QUAL_NOISE) {
1395 *id = V4L2_STD_UNKNOWN;
1396 } else if (dev->std_signal_mode[dev->input] == CURRENT_STD) {
1397 *id = dev->std_cap[dev->input];
1398 } else if (dev->std_signal_mode[dev->input] == SELECTED_STD) {
1399 *id = dev->query_std[dev->input];
1400 } else {
1401 *id = vivid_standard[last];
1402 dev->query_std_last[dev->input] =
1403 (last + 1) % ARRAY_SIZE(vivid_standard);
1404 }
1405
1406 return 0;
1407 }
1408
vivid_vid_cap_s_std(struct file * file,void * priv,v4l2_std_id id)1409 int vivid_vid_cap_s_std(struct file *file, void *priv, v4l2_std_id id)
1410 {
1411 struct vivid_dev *dev = video_drvdata(file);
1412
1413 if (!vivid_is_sdtv_cap(dev))
1414 return -ENODATA;
1415 if (dev->std_cap[dev->input] == id)
1416 return 0;
1417 if (vb2_is_busy(&dev->vb_vid_cap_q) || vb2_is_busy(&dev->vb_vbi_cap_q))
1418 return -EBUSY;
1419 dev->std_cap[dev->input] = id;
1420 vivid_update_format_cap(dev, false);
1421 return 0;
1422 }
1423
find_aspect_ratio(u32 width,u32 height,u32 * num,u32 * denom)1424 static void find_aspect_ratio(u32 width, u32 height,
1425 u32 *num, u32 *denom)
1426 {
1427 if (!(height % 3) && ((height * 4 / 3) == width)) {
1428 *num = 4;
1429 *denom = 3;
1430 } else if (!(height % 9) && ((height * 16 / 9) == width)) {
1431 *num = 16;
1432 *denom = 9;
1433 } else if (!(height % 10) && ((height * 16 / 10) == width)) {
1434 *num = 16;
1435 *denom = 10;
1436 } else if (!(height % 4) && ((height * 5 / 4) == width)) {
1437 *num = 5;
1438 *denom = 4;
1439 } else if (!(height % 9) && ((height * 15 / 9) == width)) {
1440 *num = 15;
1441 *denom = 9;
1442 } else { /* default to 16:9 */
1443 *num = 16;
1444 *denom = 9;
1445 }
1446 }
1447
valid_cvt_gtf_timings(struct v4l2_dv_timings * timings)1448 static bool valid_cvt_gtf_timings(struct v4l2_dv_timings *timings)
1449 {
1450 struct v4l2_bt_timings *bt = &timings->bt;
1451 u32 total_h_pixel;
1452 u32 total_v_lines;
1453 u32 h_freq;
1454
1455 if (!v4l2_valid_dv_timings(timings, &vivid_dv_timings_cap,
1456 NULL, NULL))
1457 return false;
1458
1459 total_h_pixel = V4L2_DV_BT_FRAME_WIDTH(bt);
1460 total_v_lines = V4L2_DV_BT_FRAME_HEIGHT(bt);
1461
1462 h_freq = (u32)bt->pixelclock / total_h_pixel;
1463
1464 if (bt->standards == 0 || (bt->standards & V4L2_DV_BT_STD_CVT)) {
1465 struct v4l2_dv_timings cvt = {};
1466
1467 if (v4l2_detect_cvt(total_v_lines, h_freq, bt->vsync, bt->width,
1468 bt->polarities, bt->interlaced,
1469 &vivid_dv_timings_cap, &cvt) &&
1470 cvt.bt.width == bt->width && cvt.bt.height == bt->height) {
1471 *timings = cvt;
1472 return true;
1473 }
1474 }
1475
1476 if (bt->standards == 0 || (bt->standards & V4L2_DV_BT_STD_GTF)) {
1477 struct v4l2_dv_timings gtf = {};
1478 struct v4l2_fract aspect_ratio;
1479
1480 find_aspect_ratio(bt->width, bt->height,
1481 &aspect_ratio.numerator,
1482 &aspect_ratio.denominator);
1483 if (v4l2_detect_gtf(total_v_lines, h_freq, bt->vsync,
1484 bt->polarities, bt->interlaced,
1485 aspect_ratio, &vivid_dv_timings_cap,
1486 >f) &&
1487 gtf.bt.width == bt->width && gtf.bt.height == bt->height) {
1488 *timings = gtf;
1489 return true;
1490 }
1491 }
1492 return false;
1493 }
1494
vivid_vid_cap_s_dv_timings(struct file * file,void * priv,struct v4l2_dv_timings * timings)1495 int vivid_vid_cap_s_dv_timings(struct file *file, void *priv,
1496 struct v4l2_dv_timings *timings)
1497 {
1498 struct vivid_dev *dev = video_drvdata(file);
1499
1500 if (!vivid_is_hdmi_cap(dev))
1501 return -ENODATA;
1502 if (!v4l2_find_dv_timings_cap(timings, &vivid_dv_timings_cap,
1503 0, NULL, NULL) &&
1504 !valid_cvt_gtf_timings(timings))
1505 return -EINVAL;
1506
1507 if (v4l2_match_dv_timings(timings, &dev->dv_timings_cap[dev->input],
1508 0, false))
1509 return 0;
1510 if (vb2_is_busy(&dev->vb_vid_cap_q))
1511 return -EBUSY;
1512
1513 dev->dv_timings_cap[dev->input] = *timings;
1514 vivid_update_format_cap(dev, false);
1515 return 0;
1516 }
1517
vidioc_query_dv_timings(struct file * file,void * priv,struct v4l2_dv_timings * timings)1518 int vidioc_query_dv_timings(struct file *file, void *priv,
1519 struct v4l2_dv_timings *timings)
1520 {
1521 struct vivid_dev *dev = video_drvdata(file);
1522 unsigned int input = dev->input;
1523 unsigned int last = dev->query_dv_timings_last[input];
1524
1525 if (!vivid_is_hdmi_cap(dev))
1526 return -ENODATA;
1527 if (dev->dv_timings_signal_mode[input] == NO_SIGNAL ||
1528 dev->edid_blocks == 0)
1529 return -ENOLINK;
1530 if (dev->dv_timings_signal_mode[input] == NO_LOCK)
1531 return -ENOLCK;
1532 if (dev->dv_timings_signal_mode[input] == OUT_OF_RANGE) {
1533 timings->bt.pixelclock = vivid_dv_timings_cap.bt.max_pixelclock * 2;
1534 return -ERANGE;
1535 }
1536 if (dev->dv_timings_signal_mode[input] == CURRENT_DV_TIMINGS) {
1537 *timings = dev->dv_timings_cap[input];
1538 } else if (dev->dv_timings_signal_mode[input] ==
1539 SELECTED_DV_TIMINGS) {
1540 *timings =
1541 v4l2_dv_timings_presets[dev->query_dv_timings[input]];
1542 } else {
1543 *timings =
1544 v4l2_dv_timings_presets[last];
1545 dev->query_dv_timings_last[input] =
1546 (last + 1) % dev->query_dv_timings_size;
1547 }
1548 return 0;
1549 }
1550
vivid_update_outputs(struct vivid_dev * dev)1551 void vivid_update_outputs(struct vivid_dev *dev)
1552 {
1553 u32 edid_present = 0;
1554
1555 if (!dev || !dev->num_outputs)
1556 return;
1557 for (unsigned int i = 0, j = 0; i < dev->num_outputs; i++) {
1558 if (dev->output_type[i] != HDMI)
1559 continue;
1560
1561 struct vivid_dev *dev_rx = dev->output_to_input_instance[i];
1562
1563 if (dev_rx && dev_rx->edid_blocks)
1564 edid_present |= 1 << j;
1565 j++;
1566 }
1567 v4l2_ctrl_s_ctrl(dev->ctrl_tx_edid_present, edid_present);
1568 v4l2_ctrl_s_ctrl(dev->ctrl_tx_hotplug, edid_present);
1569 v4l2_ctrl_s_ctrl(dev->ctrl_tx_rxsense, edid_present);
1570 }
1571
vivid_update_connected_outputs(struct vivid_dev * dev)1572 void vivid_update_connected_outputs(struct vivid_dev *dev)
1573 {
1574 u16 phys_addr = cec_get_edid_phys_addr(dev->edid, dev->edid_blocks * 128, NULL);
1575
1576 for (unsigned int i = 0, j = 0; i < dev->num_inputs; i++) {
1577 unsigned int menu_idx =
1578 dev->input_is_connected_to_output[i];
1579
1580 if (dev->input_type[i] != HDMI)
1581 continue;
1582 j++;
1583 if (menu_idx < FIXED_MENU_ITEMS)
1584 continue;
1585
1586 struct vivid_dev *dev_tx = vivid_ctrl_hdmi_to_output_instance[menu_idx];
1587 unsigned int output = vivid_ctrl_hdmi_to_output_index[menu_idx];
1588
1589 if (!dev_tx)
1590 continue;
1591
1592 unsigned int hdmi_output = dev_tx->output_to_iface_index[output];
1593
1594 vivid_update_outputs(dev_tx);
1595 if (dev->edid_blocks) {
1596 cec_s_phys_addr(dev_tx->cec_tx_adap[hdmi_output],
1597 v4l2_phys_addr_for_input(phys_addr, j),
1598 false);
1599 } else {
1600 cec_phys_addr_invalidate(dev_tx->cec_tx_adap[hdmi_output]);
1601 }
1602 }
1603 }
1604
vidioc_s_edid(struct file * file,void * priv,struct v4l2_edid * edid)1605 int vidioc_s_edid(struct file *file, void *priv,
1606 struct v4l2_edid *edid)
1607 {
1608 struct vivid_dev *dev = video_drvdata(file);
1609 u16 phys_addr;
1610 int ret;
1611
1612 memset(edid->reserved, 0, sizeof(edid->reserved));
1613 if (edid->pad >= dev->num_inputs)
1614 return -EINVAL;
1615 if (dev->input_type[edid->pad] != HDMI || edid->start_block)
1616 return -EINVAL;
1617 if (edid->blocks == 0) {
1618 if (vb2_is_busy(&dev->vb_vid_cap_q))
1619 return -EBUSY;
1620 dev->edid_blocks = 0;
1621 vivid_update_connected_outputs(dev);
1622 return 0;
1623 }
1624 if (edid->blocks > dev->edid_max_blocks) {
1625 edid->blocks = dev->edid_max_blocks;
1626 return -E2BIG;
1627 }
1628 phys_addr = cec_get_edid_phys_addr(edid->edid, edid->blocks * 128, NULL);
1629 ret = v4l2_phys_addr_validate(phys_addr, &phys_addr, NULL);
1630 if (ret)
1631 return ret;
1632
1633 if (vb2_is_busy(&dev->vb_vid_cap_q))
1634 return -EBUSY;
1635
1636 dev->edid_blocks = edid->blocks;
1637 memcpy(dev->edid, edid->edid, edid->blocks * 128);
1638
1639 vivid_update_connected_outputs(dev);
1640 return 0;
1641 }
1642
vidioc_enum_framesizes(struct file * file,void * priv,struct v4l2_frmsizeenum * fsize)1643 int vidioc_enum_framesizes(struct file *file, void *priv,
1644 struct v4l2_frmsizeenum *fsize)
1645 {
1646 struct vivid_dev *dev = video_drvdata(file);
1647
1648 if (!vivid_is_webcam(dev) && !dev->has_scaler_cap)
1649 return -EINVAL;
1650 if (vivid_get_format(dev, fsize->pixel_format) == NULL)
1651 return -EINVAL;
1652 if (vivid_is_webcam(dev)) {
1653 if (fsize->index >= ARRAY_SIZE(webcam_sizes))
1654 return -EINVAL;
1655 fsize->type = V4L2_FRMSIZE_TYPE_DISCRETE;
1656 fsize->discrete = webcam_sizes[fsize->index];
1657 return 0;
1658 }
1659 if (fsize->index)
1660 return -EINVAL;
1661 fsize->type = V4L2_FRMSIZE_TYPE_STEPWISE;
1662 fsize->stepwise.min_width = MIN_WIDTH;
1663 fsize->stepwise.max_width = MAX_WIDTH * MAX_ZOOM;
1664 fsize->stepwise.step_width = 2;
1665 fsize->stepwise.min_height = MIN_HEIGHT;
1666 fsize->stepwise.max_height = MAX_HEIGHT * MAX_ZOOM;
1667 fsize->stepwise.step_height = 2;
1668 return 0;
1669 }
1670
1671 /* timeperframe is arbitrary and continuous */
vidioc_enum_frameintervals(struct file * file,void * priv,struct v4l2_frmivalenum * fival)1672 int vidioc_enum_frameintervals(struct file *file, void *priv,
1673 struct v4l2_frmivalenum *fival)
1674 {
1675 struct vivid_dev *dev = video_drvdata(file);
1676 const struct vivid_fmt *fmt;
1677 int i;
1678
1679 fmt = vivid_get_format(dev, fival->pixel_format);
1680 if (!fmt)
1681 return -EINVAL;
1682
1683 if (!vivid_is_webcam(dev)) {
1684 if (fival->index)
1685 return -EINVAL;
1686 if (fival->width < MIN_WIDTH || fival->width > MAX_WIDTH * MAX_ZOOM)
1687 return -EINVAL;
1688 if (fival->height < MIN_HEIGHT || fival->height > MAX_HEIGHT * MAX_ZOOM)
1689 return -EINVAL;
1690 fival->type = V4L2_FRMIVAL_TYPE_DISCRETE;
1691 fival->discrete = dev->timeperframe_vid_cap;
1692 return 0;
1693 }
1694
1695 for (i = 0; i < ARRAY_SIZE(webcam_sizes); i++)
1696 if (fival->width == webcam_sizes[i].width &&
1697 fival->height == webcam_sizes[i].height)
1698 break;
1699 if (i == ARRAY_SIZE(webcam_sizes))
1700 return -EINVAL;
1701 if (fival->index >= webcam_ival_count(dev, i))
1702 return -EINVAL;
1703 fival->type = V4L2_FRMIVAL_TYPE_DISCRETE;
1704 fival->discrete = webcam_intervals[fival->index];
1705 return 0;
1706 }
1707
vivid_vid_cap_g_parm(struct file * file,void * priv,struct v4l2_streamparm * parm)1708 int vivid_vid_cap_g_parm(struct file *file, void *priv,
1709 struct v4l2_streamparm *parm)
1710 {
1711 struct vivid_dev *dev = video_drvdata(file);
1712
1713 if (parm->type != (dev->multiplanar ?
1714 V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE :
1715 V4L2_BUF_TYPE_VIDEO_CAPTURE))
1716 return -EINVAL;
1717
1718 parm->parm.capture.capability = V4L2_CAP_TIMEPERFRAME;
1719 parm->parm.capture.timeperframe = dev->timeperframe_vid_cap;
1720 parm->parm.capture.readbuffers = 1;
1721 return 0;
1722 }
1723
vivid_vid_cap_s_parm(struct file * file,void * priv,struct v4l2_streamparm * parm)1724 int vivid_vid_cap_s_parm(struct file *file, void *priv,
1725 struct v4l2_streamparm *parm)
1726 {
1727 struct vivid_dev *dev = video_drvdata(file);
1728 unsigned int ival_sz = webcam_ival_count(dev, dev->webcam_size_idx);
1729 struct v4l2_fract tpf;
1730 unsigned i;
1731
1732 if (parm->type != (dev->multiplanar ?
1733 V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE :
1734 V4L2_BUF_TYPE_VIDEO_CAPTURE))
1735 return -EINVAL;
1736 if (!vivid_is_webcam(dev))
1737 return vivid_vid_cap_g_parm(file, priv, parm);
1738
1739 tpf = parm->parm.capture.timeperframe;
1740
1741 if (tpf.denominator == 0)
1742 tpf = webcam_intervals[ival_sz - 1];
1743 for (i = 0; i < ival_sz; i++)
1744 if (V4L2_FRACT_COMPARE(tpf, >=, webcam_intervals[i]))
1745 break;
1746 if (i == ival_sz)
1747 i = ival_sz - 1;
1748 dev->webcam_ival_idx = i;
1749 tpf = webcam_intervals[dev->webcam_ival_idx];
1750
1751 /* resync the thread's timings */
1752 dev->cap_seq_resync = true;
1753 dev->timeperframe_vid_cap = tpf;
1754 parm->parm.capture.capability = V4L2_CAP_TIMEPERFRAME;
1755 parm->parm.capture.timeperframe = tpf;
1756 parm->parm.capture.readbuffers = 1;
1757 return 0;
1758 }
1759