1 // SPDX-License-Identifier: GPL-2.0-or-later
2 /*
3 * vimc-debayer.c Virtual Media Controller Driver
4 *
5 * Copyright (C) 2015-2017 Helen Koike <helen.fornazier@gmail.com>
6 */
7
8 #include <linux/moduleparam.h>
9 #include <linux/platform_device.h>
10 #include <linux/vmalloc.h>
11 #include <linux/v4l2-mediabus.h>
12 #include <media/v4l2-ctrls.h>
13 #include <media/v4l2-event.h>
14 #include <media/v4l2-subdev.h>
15
16 #include "vimc-common.h"
17
18 enum vimc_deb_rgb_colors {
19 VIMC_DEB_RED = 0,
20 VIMC_DEB_GREEN = 1,
21 VIMC_DEB_BLUE = 2,
22 };
23
24 struct vimc_deb_pix_map {
25 u32 code;
26 enum vimc_deb_rgb_colors order[2][2];
27 };
28
29 struct vimc_deb_device {
30 struct vimc_ent_device ved;
31 struct v4l2_subdev sd;
32 /* The active format */
33 struct v4l2_mbus_framefmt sink_fmt;
34 u32 src_code;
35 void (*set_rgb_src)(struct vimc_deb_device *vdeb, unsigned int lin,
36 unsigned int col, unsigned int rgb[3]);
37 /* Values calculated when the stream starts */
38 u8 *src_frame;
39 const struct vimc_deb_pix_map *sink_pix_map;
40 unsigned int sink_bpp;
41 unsigned int mean_win_size;
42 struct v4l2_ctrl_handler hdl;
43 struct media_pad pads[2];
44 };
45
46 static const struct v4l2_mbus_framefmt sink_fmt_default = {
47 .width = 640,
48 .height = 480,
49 .code = MEDIA_BUS_FMT_SRGGB8_1X8,
50 .field = V4L2_FIELD_NONE,
51 .colorspace = V4L2_COLORSPACE_SRGB,
52 };
53
54 static const u32 vimc_deb_src_mbus_codes[] = {
55 MEDIA_BUS_FMT_GBR888_1X24,
56 MEDIA_BUS_FMT_BGR888_1X24,
57 MEDIA_BUS_FMT_BGR888_3X8,
58 MEDIA_BUS_FMT_RGB888_1X24,
59 MEDIA_BUS_FMT_RGB888_2X12_BE,
60 MEDIA_BUS_FMT_RGB888_2X12_LE,
61 MEDIA_BUS_FMT_RGB888_3X8,
62 MEDIA_BUS_FMT_RGB888_1X7X4_SPWG,
63 MEDIA_BUS_FMT_RGB888_1X7X4_JEIDA,
64 MEDIA_BUS_FMT_RGB888_1X32_PADHI,
65 };
66
67 static const struct vimc_deb_pix_map vimc_deb_pix_map_list[] = {
68 {
69 .code = MEDIA_BUS_FMT_SBGGR8_1X8,
70 .order = { { VIMC_DEB_BLUE, VIMC_DEB_GREEN },
71 { VIMC_DEB_GREEN, VIMC_DEB_RED } }
72 },
73 {
74 .code = MEDIA_BUS_FMT_SGBRG8_1X8,
75 .order = { { VIMC_DEB_GREEN, VIMC_DEB_BLUE },
76 { VIMC_DEB_RED, VIMC_DEB_GREEN } }
77 },
78 {
79 .code = MEDIA_BUS_FMT_SGRBG8_1X8,
80 .order = { { VIMC_DEB_GREEN, VIMC_DEB_RED },
81 { VIMC_DEB_BLUE, VIMC_DEB_GREEN } }
82 },
83 {
84 .code = MEDIA_BUS_FMT_SRGGB8_1X8,
85 .order = { { VIMC_DEB_RED, VIMC_DEB_GREEN },
86 { VIMC_DEB_GREEN, VIMC_DEB_BLUE } }
87 },
88 {
89 .code = MEDIA_BUS_FMT_SBGGR10_1X10,
90 .order = { { VIMC_DEB_BLUE, VIMC_DEB_GREEN },
91 { VIMC_DEB_GREEN, VIMC_DEB_RED } }
92 },
93 {
94 .code = MEDIA_BUS_FMT_SGBRG10_1X10,
95 .order = { { VIMC_DEB_GREEN, VIMC_DEB_BLUE },
96 { VIMC_DEB_RED, VIMC_DEB_GREEN } }
97 },
98 {
99 .code = MEDIA_BUS_FMT_SGRBG10_1X10,
100 .order = { { VIMC_DEB_GREEN, VIMC_DEB_RED },
101 { VIMC_DEB_BLUE, VIMC_DEB_GREEN } }
102 },
103 {
104 .code = MEDIA_BUS_FMT_SRGGB10_1X10,
105 .order = { { VIMC_DEB_RED, VIMC_DEB_GREEN },
106 { VIMC_DEB_GREEN, VIMC_DEB_BLUE } }
107 },
108 {
109 .code = MEDIA_BUS_FMT_SBGGR12_1X12,
110 .order = { { VIMC_DEB_BLUE, VIMC_DEB_GREEN },
111 { VIMC_DEB_GREEN, VIMC_DEB_RED } }
112 },
113 {
114 .code = MEDIA_BUS_FMT_SGBRG12_1X12,
115 .order = { { VIMC_DEB_GREEN, VIMC_DEB_BLUE },
116 { VIMC_DEB_RED, VIMC_DEB_GREEN } }
117 },
118 {
119 .code = MEDIA_BUS_FMT_SGRBG12_1X12,
120 .order = { { VIMC_DEB_GREEN, VIMC_DEB_RED },
121 { VIMC_DEB_BLUE, VIMC_DEB_GREEN } }
122 },
123 {
124 .code = MEDIA_BUS_FMT_SRGGB12_1X12,
125 .order = { { VIMC_DEB_RED, VIMC_DEB_GREEN },
126 { VIMC_DEB_GREEN, VIMC_DEB_BLUE } }
127 },
128 };
129
vimc_deb_pix_map_by_code(u32 code)130 static const struct vimc_deb_pix_map *vimc_deb_pix_map_by_code(u32 code)
131 {
132 unsigned int i;
133
134 for (i = 0; i < ARRAY_SIZE(vimc_deb_pix_map_list); i++)
135 if (vimc_deb_pix_map_list[i].code == code)
136 return &vimc_deb_pix_map_list[i];
137
138 return NULL;
139 }
140
vimc_deb_src_code_is_valid(u32 code)141 static bool vimc_deb_src_code_is_valid(u32 code)
142 {
143 unsigned int i;
144
145 for (i = 0; i < ARRAY_SIZE(vimc_deb_src_mbus_codes); i++)
146 if (vimc_deb_src_mbus_codes[i] == code)
147 return true;
148
149 return false;
150 }
151
vimc_deb_init_cfg(struct v4l2_subdev * sd,struct v4l2_subdev_pad_config * cfg)152 static int vimc_deb_init_cfg(struct v4l2_subdev *sd,
153 struct v4l2_subdev_pad_config *cfg)
154 {
155 struct vimc_deb_device *vdeb = v4l2_get_subdevdata(sd);
156 struct v4l2_mbus_framefmt *mf;
157 unsigned int i;
158
159 mf = v4l2_subdev_get_try_format(sd, cfg, 0);
160 *mf = sink_fmt_default;
161
162 for (i = 1; i < sd->entity.num_pads; i++) {
163 mf = v4l2_subdev_get_try_format(sd, cfg, i);
164 *mf = sink_fmt_default;
165 mf->code = vdeb->src_code;
166 }
167
168 return 0;
169 }
170
vimc_deb_enum_mbus_code(struct v4l2_subdev * sd,struct v4l2_subdev_pad_config * cfg,struct v4l2_subdev_mbus_code_enum * code)171 static int vimc_deb_enum_mbus_code(struct v4l2_subdev *sd,
172 struct v4l2_subdev_pad_config *cfg,
173 struct v4l2_subdev_mbus_code_enum *code)
174 {
175 if (VIMC_IS_SRC(code->pad)) {
176 if (code->index >= ARRAY_SIZE(vimc_deb_src_mbus_codes))
177 return -EINVAL;
178
179 code->code = vimc_deb_src_mbus_codes[code->index];
180 } else {
181 if (code->index >= ARRAY_SIZE(vimc_deb_pix_map_list))
182 return -EINVAL;
183
184 code->code = vimc_deb_pix_map_list[code->index].code;
185 }
186
187 return 0;
188 }
189
vimc_deb_enum_frame_size(struct v4l2_subdev * sd,struct v4l2_subdev_pad_config * cfg,struct v4l2_subdev_frame_size_enum * fse)190 static int vimc_deb_enum_frame_size(struct v4l2_subdev *sd,
191 struct v4l2_subdev_pad_config *cfg,
192 struct v4l2_subdev_frame_size_enum *fse)
193 {
194 if (fse->index)
195 return -EINVAL;
196
197 if (VIMC_IS_SINK(fse->pad)) {
198 const struct vimc_deb_pix_map *vpix =
199 vimc_deb_pix_map_by_code(fse->code);
200
201 if (!vpix)
202 return -EINVAL;
203 } else if (!vimc_deb_src_code_is_valid(fse->code)) {
204 return -EINVAL;
205 }
206
207 fse->min_width = VIMC_FRAME_MIN_WIDTH;
208 fse->max_width = VIMC_FRAME_MAX_WIDTH;
209 fse->min_height = VIMC_FRAME_MIN_HEIGHT;
210 fse->max_height = VIMC_FRAME_MAX_HEIGHT;
211
212 return 0;
213 }
214
vimc_deb_get_fmt(struct v4l2_subdev * sd,struct v4l2_subdev_pad_config * cfg,struct v4l2_subdev_format * fmt)215 static int vimc_deb_get_fmt(struct v4l2_subdev *sd,
216 struct v4l2_subdev_pad_config *cfg,
217 struct v4l2_subdev_format *fmt)
218 {
219 struct vimc_deb_device *vdeb = v4l2_get_subdevdata(sd);
220
221 /* Get the current sink format */
222 fmt->format = fmt->which == V4L2_SUBDEV_FORMAT_TRY ?
223 *v4l2_subdev_get_try_format(sd, cfg, 0) :
224 vdeb->sink_fmt;
225
226 /* Set the right code for the source pad */
227 if (VIMC_IS_SRC(fmt->pad))
228 fmt->format.code = vdeb->src_code;
229
230 return 0;
231 }
232
vimc_deb_adjust_sink_fmt(struct v4l2_mbus_framefmt * fmt)233 static void vimc_deb_adjust_sink_fmt(struct v4l2_mbus_framefmt *fmt)
234 {
235 const struct vimc_deb_pix_map *vpix;
236
237 /* Don't accept a code that is not on the debayer table */
238 vpix = vimc_deb_pix_map_by_code(fmt->code);
239 if (!vpix)
240 fmt->code = sink_fmt_default.code;
241
242 fmt->width = clamp_t(u32, fmt->width, VIMC_FRAME_MIN_WIDTH,
243 VIMC_FRAME_MAX_WIDTH) & ~1;
244 fmt->height = clamp_t(u32, fmt->height, VIMC_FRAME_MIN_HEIGHT,
245 VIMC_FRAME_MAX_HEIGHT) & ~1;
246
247 if (fmt->field == V4L2_FIELD_ANY)
248 fmt->field = sink_fmt_default.field;
249
250 vimc_colorimetry_clamp(fmt);
251 }
252
vimc_deb_set_fmt(struct v4l2_subdev * sd,struct v4l2_subdev_pad_config * cfg,struct v4l2_subdev_format * fmt)253 static int vimc_deb_set_fmt(struct v4l2_subdev *sd,
254 struct v4l2_subdev_pad_config *cfg,
255 struct v4l2_subdev_format *fmt)
256 {
257 struct vimc_deb_device *vdeb = v4l2_get_subdevdata(sd);
258 struct v4l2_mbus_framefmt *sink_fmt;
259 u32 *src_code;
260
261 if (fmt->which == V4L2_SUBDEV_FORMAT_ACTIVE) {
262 /* Do not change the format while stream is on */
263 if (vdeb->src_frame)
264 return -EBUSY;
265
266 sink_fmt = &vdeb->sink_fmt;
267 src_code = &vdeb->src_code;
268 } else {
269 sink_fmt = v4l2_subdev_get_try_format(sd, cfg, 0);
270 src_code = &v4l2_subdev_get_try_format(sd, cfg, 1)->code;
271 }
272
273 /*
274 * Do not change the format of the source pad,
275 * it is propagated from the sink
276 */
277 if (VIMC_IS_SRC(fmt->pad)) {
278 u32 code = fmt->format.code;
279
280 fmt->format = *sink_fmt;
281
282 if (vimc_deb_src_code_is_valid(code))
283 *src_code = code;
284
285 fmt->format.code = *src_code;
286 } else {
287 /* Set the new format in the sink pad */
288 vimc_deb_adjust_sink_fmt(&fmt->format);
289
290 dev_dbg(vdeb->ved.dev, "%s: sink format update: "
291 "old:%dx%d (0x%x, %d, %d, %d, %d) "
292 "new:%dx%d (0x%x, %d, %d, %d, %d)\n", vdeb->sd.name,
293 /* old */
294 sink_fmt->width, sink_fmt->height, sink_fmt->code,
295 sink_fmt->colorspace, sink_fmt->quantization,
296 sink_fmt->xfer_func, sink_fmt->ycbcr_enc,
297 /* new */
298 fmt->format.width, fmt->format.height, fmt->format.code,
299 fmt->format.colorspace, fmt->format.quantization,
300 fmt->format.xfer_func, fmt->format.ycbcr_enc);
301
302 *sink_fmt = fmt->format;
303 }
304
305 return 0;
306 }
307
308 static const struct v4l2_subdev_pad_ops vimc_deb_pad_ops = {
309 .init_cfg = vimc_deb_init_cfg,
310 .enum_mbus_code = vimc_deb_enum_mbus_code,
311 .enum_frame_size = vimc_deb_enum_frame_size,
312 .get_fmt = vimc_deb_get_fmt,
313 .set_fmt = vimc_deb_set_fmt,
314 };
315
vimc_deb_process_rgb_frame(struct vimc_deb_device * vdeb,unsigned int lin,unsigned int col,unsigned int rgb[3])316 static void vimc_deb_process_rgb_frame(struct vimc_deb_device *vdeb,
317 unsigned int lin,
318 unsigned int col,
319 unsigned int rgb[3])
320 {
321 const struct vimc_pix_map *vpix;
322 unsigned int i, index;
323
324 vpix = vimc_pix_map_by_code(vdeb->src_code);
325 index = VIMC_FRAME_INDEX(lin, col, vdeb->sink_fmt.width, 3);
326 for (i = 0; i < 3; i++) {
327 switch (vpix->pixelformat) {
328 case V4L2_PIX_FMT_RGB24:
329 vdeb->src_frame[index + i] = rgb[i];
330 break;
331 case V4L2_PIX_FMT_BGR24:
332 vdeb->src_frame[index + i] = rgb[2 - i];
333 break;
334 }
335 }
336 }
337
vimc_deb_s_stream(struct v4l2_subdev * sd,int enable)338 static int vimc_deb_s_stream(struct v4l2_subdev *sd, int enable)
339 {
340 struct vimc_deb_device *vdeb = v4l2_get_subdevdata(sd);
341
342 if (enable) {
343 const struct vimc_pix_map *vpix;
344 unsigned int frame_size;
345
346 if (vdeb->src_frame)
347 return 0;
348
349 /* Calculate the frame size of the source pad */
350 vpix = vimc_pix_map_by_code(vdeb->src_code);
351 frame_size = vdeb->sink_fmt.width * vdeb->sink_fmt.height *
352 vpix->bpp;
353
354 /* Save the bytes per pixel of the sink */
355 vpix = vimc_pix_map_by_code(vdeb->sink_fmt.code);
356 vdeb->sink_bpp = vpix->bpp;
357
358 /* Get the corresponding pixel map from the table */
359 vdeb->sink_pix_map =
360 vimc_deb_pix_map_by_code(vdeb->sink_fmt.code);
361
362 /*
363 * Allocate the frame buffer. Use vmalloc to be able to
364 * allocate a large amount of memory
365 */
366 vdeb->src_frame = vmalloc(frame_size);
367 if (!vdeb->src_frame)
368 return -ENOMEM;
369
370 } else {
371 if (!vdeb->src_frame)
372 return 0;
373
374 vfree(vdeb->src_frame);
375 vdeb->src_frame = NULL;
376 }
377
378 return 0;
379 }
380
381 static const struct v4l2_subdev_core_ops vimc_deb_core_ops = {
382 .log_status = v4l2_ctrl_subdev_log_status,
383 .subscribe_event = v4l2_ctrl_subdev_subscribe_event,
384 .unsubscribe_event = v4l2_event_subdev_unsubscribe,
385 };
386
387 static const struct v4l2_subdev_video_ops vimc_deb_video_ops = {
388 .s_stream = vimc_deb_s_stream,
389 };
390
391 static const struct v4l2_subdev_ops vimc_deb_ops = {
392 .core = &vimc_deb_core_ops,
393 .pad = &vimc_deb_pad_ops,
394 .video = &vimc_deb_video_ops,
395 };
396
vimc_deb_get_val(const u8 * bytes,const unsigned int n_bytes)397 static unsigned int vimc_deb_get_val(const u8 *bytes,
398 const unsigned int n_bytes)
399 {
400 unsigned int i;
401 unsigned int acc = 0;
402
403 for (i = 0; i < n_bytes; i++)
404 acc = acc + (bytes[i] << (8 * i));
405
406 return acc;
407 }
408
vimc_deb_calc_rgb_sink(struct vimc_deb_device * vdeb,const u8 * frame,const unsigned int lin,const unsigned int col,unsigned int rgb[3])409 static void vimc_deb_calc_rgb_sink(struct vimc_deb_device *vdeb,
410 const u8 *frame,
411 const unsigned int lin,
412 const unsigned int col,
413 unsigned int rgb[3])
414 {
415 unsigned int i, seek, wlin, wcol;
416 unsigned int n_rgb[3] = {0, 0, 0};
417
418 for (i = 0; i < 3; i++)
419 rgb[i] = 0;
420
421 /*
422 * Calculate how many we need to subtract to get to the pixel in
423 * the top left corner of the mean window (considering the current
424 * pixel as the center)
425 */
426 seek = vdeb->mean_win_size / 2;
427
428 /* Sum the values of the colors in the mean window */
429
430 dev_dbg(vdeb->ved.dev,
431 "deb: %s: --- Calc pixel %dx%d, window mean %d, seek %d ---\n",
432 vdeb->sd.name, lin, col, vdeb->sink_fmt.height, seek);
433
434 /*
435 * Iterate through all the lines in the mean window, start
436 * with zero if the pixel is outside the frame and don't pass
437 * the height when the pixel is in the bottom border of the
438 * frame
439 */
440 for (wlin = seek > lin ? 0 : lin - seek;
441 wlin < lin + seek + 1 && wlin < vdeb->sink_fmt.height;
442 wlin++) {
443
444 /*
445 * Iterate through all the columns in the mean window, start
446 * with zero if the pixel is outside the frame and don't pass
447 * the width when the pixel is in the right border of the
448 * frame
449 */
450 for (wcol = seek > col ? 0 : col - seek;
451 wcol < col + seek + 1 && wcol < vdeb->sink_fmt.width;
452 wcol++) {
453 enum vimc_deb_rgb_colors color;
454 unsigned int index;
455
456 /* Check which color this pixel is */
457 color = vdeb->sink_pix_map->order[wlin % 2][wcol % 2];
458
459 index = VIMC_FRAME_INDEX(wlin, wcol,
460 vdeb->sink_fmt.width,
461 vdeb->sink_bpp);
462
463 dev_dbg(vdeb->ved.dev,
464 "deb: %s: RGB CALC: frame index %d, win pos %dx%d, color %d\n",
465 vdeb->sd.name, index, wlin, wcol, color);
466
467 /* Get its value */
468 rgb[color] = rgb[color] +
469 vimc_deb_get_val(&frame[index], vdeb->sink_bpp);
470
471 /* Save how many values we already added */
472 n_rgb[color]++;
473
474 dev_dbg(vdeb->ved.dev, "deb: %s: RGB CALC: val %d, n %d\n",
475 vdeb->sd.name, rgb[color], n_rgb[color]);
476 }
477 }
478
479 /* Calculate the mean */
480 for (i = 0; i < 3; i++) {
481 dev_dbg(vdeb->ved.dev,
482 "deb: %s: PRE CALC: %dx%d Color %d, val %d, n %d\n",
483 vdeb->sd.name, lin, col, i, rgb[i], n_rgb[i]);
484
485 if (n_rgb[i])
486 rgb[i] = rgb[i] / n_rgb[i];
487
488 dev_dbg(vdeb->ved.dev,
489 "deb: %s: FINAL CALC: %dx%d Color %d, val %d\n",
490 vdeb->sd.name, lin, col, i, rgb[i]);
491 }
492 }
493
vimc_deb_process_frame(struct vimc_ent_device * ved,const void * sink_frame)494 static void *vimc_deb_process_frame(struct vimc_ent_device *ved,
495 const void *sink_frame)
496 {
497 struct vimc_deb_device *vdeb = container_of(ved, struct vimc_deb_device,
498 ved);
499 unsigned int rgb[3];
500 unsigned int i, j;
501
502 /* If the stream in this node is not active, just return */
503 if (!vdeb->src_frame)
504 return ERR_PTR(-EINVAL);
505
506 for (i = 0; i < vdeb->sink_fmt.height; i++)
507 for (j = 0; j < vdeb->sink_fmt.width; j++) {
508 vimc_deb_calc_rgb_sink(vdeb, sink_frame, i, j, rgb);
509 vdeb->set_rgb_src(vdeb, i, j, rgb);
510 }
511
512 return vdeb->src_frame;
513 }
514
vimc_deb_s_ctrl(struct v4l2_ctrl * ctrl)515 static int vimc_deb_s_ctrl(struct v4l2_ctrl *ctrl)
516 {
517 struct vimc_deb_device *vdeb =
518 container_of(ctrl->handler, struct vimc_deb_device, hdl);
519
520 switch (ctrl->id) {
521 case VIMC_CID_MEAN_WIN_SIZE:
522 vdeb->mean_win_size = ctrl->val;
523 break;
524 default:
525 return -EINVAL;
526 }
527 return 0;
528 }
529
530 static const struct v4l2_ctrl_ops vimc_deb_ctrl_ops = {
531 .s_ctrl = vimc_deb_s_ctrl,
532 };
533
vimc_deb_release(struct vimc_ent_device * ved)534 static void vimc_deb_release(struct vimc_ent_device *ved)
535 {
536 struct vimc_deb_device *vdeb =
537 container_of(ved, struct vimc_deb_device, ved);
538
539 v4l2_ctrl_handler_free(&vdeb->hdl);
540 media_entity_cleanup(vdeb->ved.ent);
541 kfree(vdeb);
542 }
543
544 static const struct v4l2_ctrl_config vimc_deb_ctrl_class = {
545 .flags = V4L2_CTRL_FLAG_READ_ONLY | V4L2_CTRL_FLAG_WRITE_ONLY,
546 .id = VIMC_CID_VIMC_CLASS,
547 .name = "VIMC Controls",
548 .type = V4L2_CTRL_TYPE_CTRL_CLASS,
549 };
550
551 static const struct v4l2_ctrl_config vimc_deb_ctrl_mean_win_size = {
552 .ops = &vimc_deb_ctrl_ops,
553 .id = VIMC_CID_MEAN_WIN_SIZE,
554 .name = "Debayer Mean Window Size",
555 .type = V4L2_CTRL_TYPE_INTEGER,
556 .min = 1,
557 .max = 25,
558 .step = 2,
559 .def = 3,
560 };
561
vimc_deb_add(struct vimc_device * vimc,const char * vcfg_name)562 static struct vimc_ent_device *vimc_deb_add(struct vimc_device *vimc,
563 const char *vcfg_name)
564 {
565 struct v4l2_device *v4l2_dev = &vimc->v4l2_dev;
566 struct vimc_deb_device *vdeb;
567 int ret;
568
569 /* Allocate the vdeb struct */
570 vdeb = kzalloc(sizeof(*vdeb), GFP_KERNEL);
571 if (!vdeb)
572 return ERR_PTR(-ENOMEM);
573
574 /* Create controls: */
575 v4l2_ctrl_handler_init(&vdeb->hdl, 2);
576 v4l2_ctrl_new_custom(&vdeb->hdl, &vimc_deb_ctrl_class, NULL);
577 v4l2_ctrl_new_custom(&vdeb->hdl, &vimc_deb_ctrl_mean_win_size, NULL);
578 vdeb->sd.ctrl_handler = &vdeb->hdl;
579 if (vdeb->hdl.error) {
580 ret = vdeb->hdl.error;
581 goto err_free_vdeb;
582 }
583
584 /* Initialize ved and sd */
585 vdeb->pads[0].flags = MEDIA_PAD_FL_SINK;
586 vdeb->pads[1].flags = MEDIA_PAD_FL_SOURCE;
587
588 ret = vimc_ent_sd_register(&vdeb->ved, &vdeb->sd, v4l2_dev,
589 vcfg_name,
590 MEDIA_ENT_F_PROC_VIDEO_PIXEL_ENC_CONV, 2,
591 vdeb->pads, &vimc_deb_ops);
592 if (ret)
593 goto err_free_hdl;
594
595 vdeb->ved.process_frame = vimc_deb_process_frame;
596 vdeb->ved.dev = vimc->mdev.dev;
597 vdeb->mean_win_size = vimc_deb_ctrl_mean_win_size.def;
598
599 /* Initialize the frame format */
600 vdeb->sink_fmt = sink_fmt_default;
601 /*
602 * TODO: Add support for more output formats, we only support
603 * RGB888 for now
604 * NOTE: the src format is always the same as the sink, except
605 * for the code
606 */
607 vdeb->src_code = MEDIA_BUS_FMT_RGB888_1X24;
608 vdeb->set_rgb_src = vimc_deb_process_rgb_frame;
609
610 return &vdeb->ved;
611
612 err_free_hdl:
613 v4l2_ctrl_handler_free(&vdeb->hdl);
614 err_free_vdeb:
615 kfree(vdeb);
616
617 return ERR_PTR(ret);
618 }
619
620 struct vimc_ent_type vimc_deb_type = {
621 .add = vimc_deb_add,
622 .release = vimc_deb_release
623 };
624