summaryrefslogtreecommitdiff
path: root/drivers/media/platform/mtk-vcodec/mtk_vcodec_enc.c
blob: fd8de027e83e30a2b5fd7b3afc866dbb1e1f5426 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
1060
1061
1062
1063
1064
1065
1066
1067
1068
1069
1070
1071
1072
1073
1074
1075
1076
1077
1078
1079
1080
1081
1082
1083
1084
1085
1086
1087
1088
1089
1090
1091
1092
1093
1094
1095
1096
1097
1098
1099
1100
1101
1102
1103
1104
1105
1106
1107
1108
1109
1110
1111
1112
1113
1114
1115
1116
1117
1118
1119
1120
1121
1122
1123
1124
1125
1126
1127
1128
1129
1130
1131
1132
1133
1134
1135
1136
1137
1138
1139
1140
1141
1142
1143
1144
1145
1146
1147
1148
1149
1150
1151
1152
1153
1154
1155
1156
1157
1158
1159
1160
1161
1162
1163
1164
1165
1166
1167
1168
1169
1170
1171
1172
1173
1174
1175
1176
1177
1178
1179
1180
1181
1182
1183
1184
1185
1186
1187
1188
1189
1190
1191
1192
1193
1194
1195
1196
1197
1198
1199
1200
1201
1202
1203
1204
1205
1206
1207
1208
1209
1210
1211
1212
1213
1214
1215
1216
1217
1218
1219
1220
1221
1222
1223
1224
1225
1226
1227
1228
1229
1230
1231
1232
1233
1234
1235
1236
1237
1238
1239
1240
1241
1242
1243
1244
1245
1246
1247
1248
1249
1250
1251
1252
1253
1254
1255
1256
1257
1258
1259
1260
1261
1262
1263
1264
1265
1266
1267
1268
1269
1270
1271
1272
1273
1274
1275
1276
1277
1278
1279
1280
1281
1282
1283
1284
1285
1286
1287
1288
1289
1290
1291
1292
1293
1294
1295
1296
1297
1298
1299
1300
1301
1302
1303
1304
1305
1306
1307
1308
1309
1310
1311
1312
1313
1314
1315
1316
1317
1318
1319
1320
1321
1322
1323
1324
1325
1326
1327
1328
1329
1330
1331
1332
1333
1334
// SPDX-License-Identifier: GPL-2.0
/*
* Copyright (c) 2016 MediaTek Inc.
* Author: PC Chen <pc.chen@mediatek.com>
*         Tiffany Lin <tiffany.lin@mediatek.com>
*/

#include <media/v4l2-event.h>
#include <media/v4l2-mem2mem.h>
#include <media/videobuf2-dma-contig.h>
#include <soc/mediatek/smi.h>

#include "mtk_vcodec_drv.h"
#include "mtk_vcodec_enc.h"
#include "mtk_vcodec_intr.h"
#include "mtk_vcodec_util.h"
#include "venc_drv_if.h"

#define MTK_VENC_MIN_W	160U
#define MTK_VENC_MIN_H	128U
#define MTK_VENC_MAX_W	1920U
#define MTK_VENC_MAX_H	1088U
#define DFT_CFG_WIDTH	MTK_VENC_MIN_W
#define DFT_CFG_HEIGHT	MTK_VENC_MIN_H
#define MTK_MAX_CTRLS_HINT	20
#define OUT_FMT_IDX		0
#define CAP_FMT_IDX		4


static void mtk_venc_worker(struct work_struct *work);

static const struct mtk_video_fmt mtk_video_formats[] = {
	{
		.fourcc = V4L2_PIX_FMT_NV12M,
		.type = MTK_FMT_FRAME,
		.num_planes = 2,
	},
	{
		.fourcc = V4L2_PIX_FMT_NV21M,
		.type = MTK_FMT_FRAME,
		.num_planes = 2,
	},
	{
		.fourcc = V4L2_PIX_FMT_YUV420M,
		.type = MTK_FMT_FRAME,
		.num_planes = 3,
	},
	{
		.fourcc = V4L2_PIX_FMT_YVU420M,
		.type = MTK_FMT_FRAME,
		.num_planes = 3,
	},
	{
		.fourcc = V4L2_PIX_FMT_H264,
		.type = MTK_FMT_ENC,
		.num_planes = 1,
	},
	{
		.fourcc = V4L2_PIX_FMT_VP8,
		.type = MTK_FMT_ENC,
		.num_planes = 1,
	},
};

#define NUM_FORMATS ARRAY_SIZE(mtk_video_formats)

static const struct mtk_codec_framesizes mtk_venc_framesizes[] = {
	{
		.fourcc	= V4L2_PIX_FMT_H264,
		.stepwise = { MTK_VENC_MIN_W, MTK_VENC_MAX_W, 16,
			      MTK_VENC_MIN_H, MTK_VENC_MAX_H, 16 },
	},
	{
		.fourcc = V4L2_PIX_FMT_VP8,
		.stepwise = { MTK_VENC_MIN_W, MTK_VENC_MAX_W, 16,
			      MTK_VENC_MIN_H, MTK_VENC_MAX_H, 16 },
	},
};

#define NUM_SUPPORTED_FRAMESIZE ARRAY_SIZE(mtk_venc_framesizes)

static int vidioc_venc_s_ctrl(struct v4l2_ctrl *ctrl)
{
	struct mtk_vcodec_ctx *ctx = ctrl_to_ctx(ctrl);
	struct mtk_enc_params *p = &ctx->enc_params;
	int ret = 0;

	switch (ctrl->id) {
	case V4L2_CID_MPEG_VIDEO_BITRATE:
		mtk_v4l2_debug(2, "V4L2_CID_MPEG_VIDEO_BITRATE val = %d",
			       ctrl->val);
		p->bitrate = ctrl->val;
		ctx->param_change |= MTK_ENCODE_PARAM_BITRATE;
		break;
	case V4L2_CID_MPEG_VIDEO_B_FRAMES:
		mtk_v4l2_debug(2, "V4L2_CID_MPEG_VIDEO_B_FRAMES val = %d",
			       ctrl->val);
		p->num_b_frame = ctrl->val;
		break;
	case V4L2_CID_MPEG_VIDEO_FRAME_RC_ENABLE:
		mtk_v4l2_debug(2, "V4L2_CID_MPEG_VIDEO_FRAME_RC_ENABLE val = %d",
			       ctrl->val);
		p->rc_frame = ctrl->val;
		break;
	case V4L2_CID_MPEG_VIDEO_H264_MAX_QP:
		mtk_v4l2_debug(2, "V4L2_CID_MPEG_VIDEO_H264_MAX_QP val = %d",
			       ctrl->val);
		p->h264_max_qp = ctrl->val;
		break;
	case V4L2_CID_MPEG_VIDEO_HEADER_MODE:
		mtk_v4l2_debug(2, "V4L2_CID_MPEG_VIDEO_HEADER_MODE val = %d",
			       ctrl->val);
		p->seq_hdr_mode = ctrl->val;
		break;
	case V4L2_CID_MPEG_VIDEO_MB_RC_ENABLE:
		mtk_v4l2_debug(2, "V4L2_CID_MPEG_VIDEO_MB_RC_ENABLE val = %d",
			       ctrl->val);
		p->rc_mb = ctrl->val;
		break;
	case V4L2_CID_MPEG_VIDEO_H264_PROFILE:
		mtk_v4l2_debug(2, "V4L2_CID_MPEG_VIDEO_H264_PROFILE val = %d",
			       ctrl->val);
		p->h264_profile = ctrl->val;
		break;
	case V4L2_CID_MPEG_VIDEO_H264_LEVEL:
		mtk_v4l2_debug(2, "V4L2_CID_MPEG_VIDEO_H264_LEVEL val = %d",
			       ctrl->val);
		p->h264_level = ctrl->val;
		break;
	case V4L2_CID_MPEG_VIDEO_H264_I_PERIOD:
		mtk_v4l2_debug(2, "V4L2_CID_MPEG_VIDEO_H264_I_PERIOD val = %d",
			       ctrl->val);
		p->intra_period = ctrl->val;
		ctx->param_change |= MTK_ENCODE_PARAM_INTRA_PERIOD;
		break;
	case V4L2_CID_MPEG_VIDEO_GOP_SIZE:
		mtk_v4l2_debug(2, "V4L2_CID_MPEG_VIDEO_GOP_SIZE val = %d",
			       ctrl->val);
		p->gop_size = ctrl->val;
		ctx->param_change |= MTK_ENCODE_PARAM_GOP_SIZE;
		break;
	case V4L2_CID_MPEG_VIDEO_FORCE_KEY_FRAME:
		mtk_v4l2_debug(2, "V4L2_CID_MPEG_VIDEO_FORCE_KEY_FRAME");
		p->force_intra = 1;
		ctx->param_change |= MTK_ENCODE_PARAM_FORCE_INTRA;
		break;
	default:
		ret = -EINVAL;
		break;
	}

	return ret;
}

static const struct v4l2_ctrl_ops mtk_vcodec_enc_ctrl_ops = {
	.s_ctrl = vidioc_venc_s_ctrl,
};

static int vidioc_enum_fmt(struct v4l2_fmtdesc *f, bool output_queue)
{
	const struct mtk_video_fmt *fmt;
	int i, j = 0;

	for (i = 0; i < NUM_FORMATS; ++i) {
		if (output_queue && mtk_video_formats[i].type != MTK_FMT_FRAME)
			continue;
		if (!output_queue && mtk_video_formats[i].type != MTK_FMT_ENC)
			continue;

		if (j == f->index) {
			fmt = &mtk_video_formats[i];
			f->pixelformat = fmt->fourcc;
			memset(f->reserved, 0, sizeof(f->reserved));
			return 0;
		}
		++j;
	}

	return -EINVAL;
}

static int vidioc_enum_framesizes(struct file *file, void *fh,
				  struct v4l2_frmsizeenum *fsize)
{
	int i = 0;

	if (fsize->index != 0)
		return -EINVAL;

	for (i = 0; i < NUM_SUPPORTED_FRAMESIZE; ++i) {
		if (fsize->pixel_format != mtk_venc_framesizes[i].fourcc)
			continue;

		fsize->type = V4L2_FRMSIZE_TYPE_STEPWISE;
		fsize->stepwise = mtk_venc_framesizes[i].stepwise;
		return 0;
	}

	return -EINVAL;
}

static int vidioc_enum_fmt_vid_cap(struct file *file, void *priv,
				   struct v4l2_fmtdesc *f)
{
	return vidioc_enum_fmt(f, false);
}

static int vidioc_enum_fmt_vid_out(struct file *file, void *priv,
				   struct v4l2_fmtdesc *f)
{
	return vidioc_enum_fmt(f, true);
}

static int vidioc_venc_querycap(struct file *file, void *priv,
				struct v4l2_capability *cap)
{
	strscpy(cap->driver, MTK_VCODEC_ENC_NAME, sizeof(cap->driver));
	strscpy(cap->bus_info, MTK_PLATFORM_STR, sizeof(cap->bus_info));
	strscpy(cap->card, MTK_PLATFORM_STR, sizeof(cap->card));

	return 0;
}

static int vidioc_venc_s_parm(struct file *file, void *priv,
			      struct v4l2_streamparm *a)
{
	struct mtk_vcodec_ctx *ctx = fh_to_ctx(priv);

	if (a->type != V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE)
		return -EINVAL;

	ctx->enc_params.framerate_num =
			a->parm.output.timeperframe.denominator;
	ctx->enc_params.framerate_denom =
			a->parm.output.timeperframe.numerator;
	ctx->param_change |= MTK_ENCODE_PARAM_FRAMERATE;

	a->parm.output.capability = V4L2_CAP_TIMEPERFRAME;

	return 0;
}

static int vidioc_venc_g_parm(struct file *file, void *priv,
			      struct v4l2_streamparm *a)
{
	struct mtk_vcodec_ctx *ctx = fh_to_ctx(priv);

	if (a->type != V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE)
		return -EINVAL;

	a->parm.output.capability = V4L2_CAP_TIMEPERFRAME;
	a->parm.output.timeperframe.denominator =
			ctx->enc_params.framerate_num;
	a->parm.output.timeperframe.numerator =
			ctx->enc_params.framerate_denom;

	return 0;
}

static struct mtk_q_data *mtk_venc_get_q_data(struct mtk_vcodec_ctx *ctx,
					      enum v4l2_buf_type type)
{
	if (V4L2_TYPE_IS_OUTPUT(type))
		return &ctx->q_data[MTK_Q_DATA_SRC];

	return &ctx->q_data[MTK_Q_DATA_DST];
}

static const struct mtk_video_fmt *mtk_venc_find_format(struct v4l2_format *f)
{
	const struct mtk_video_fmt *fmt;
	unsigned int k;

	for (k = 0; k < NUM_FORMATS; k++) {
		fmt = &mtk_video_formats[k];
		if (fmt->fourcc == f->fmt.pix.pixelformat)
			return fmt;
	}

	return NULL;
}

/* V4L2 specification suggests the driver corrects the format struct if any of
 * the dimensions is unsupported
 */
static int vidioc_try_fmt(struct v4l2_format *f,
			  const struct mtk_video_fmt *fmt)
{
	struct v4l2_pix_format_mplane *pix_fmt_mp = &f->fmt.pix_mp;
	int i;

	pix_fmt_mp->field = V4L2_FIELD_NONE;

	if (f->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) {
		pix_fmt_mp->num_planes = 1;
		pix_fmt_mp->plane_fmt[0].bytesperline = 0;
	} else if (f->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) {
		int tmp_w, tmp_h;

		pix_fmt_mp->height = clamp(pix_fmt_mp->height,
					MTK_VENC_MIN_H,
					MTK_VENC_MAX_H);
		pix_fmt_mp->width = clamp(pix_fmt_mp->width,
					MTK_VENC_MIN_W,
					MTK_VENC_MAX_W);

		/* find next closer width align 16, heign align 32, size align
		 * 64 rectangle
		 */
		tmp_w = pix_fmt_mp->width;
		tmp_h = pix_fmt_mp->height;
		v4l_bound_align_image(&pix_fmt_mp->width,
					MTK_VENC_MIN_W,
					MTK_VENC_MAX_W, 4,
					&pix_fmt_mp->height,
					MTK_VENC_MIN_H,
					MTK_VENC_MAX_H, 5, 6);

		if (pix_fmt_mp->width < tmp_w &&
			(pix_fmt_mp->width + 16) <= MTK_VENC_MAX_W)
			pix_fmt_mp->width += 16;
		if (pix_fmt_mp->height < tmp_h &&
			(pix_fmt_mp->height + 32) <= MTK_VENC_MAX_H)
			pix_fmt_mp->height += 32;

		mtk_v4l2_debug(0,
			"before resize width=%d, height=%d, after resize width=%d, height=%d, sizeimage=%d %d",
			tmp_w, tmp_h, pix_fmt_mp->width,
			pix_fmt_mp->height,
			pix_fmt_mp->plane_fmt[0].sizeimage,
			pix_fmt_mp->plane_fmt[1].sizeimage);

		pix_fmt_mp->num_planes = fmt->num_planes;
		pix_fmt_mp->plane_fmt[0].sizeimage =
				pix_fmt_mp->width * pix_fmt_mp->height +
				((ALIGN(pix_fmt_mp->width, 16) * 2) * 16);
		pix_fmt_mp->plane_fmt[0].bytesperline = pix_fmt_mp->width;

		if (pix_fmt_mp->num_planes == 2) {
			pix_fmt_mp->plane_fmt[1].sizeimage =
				(pix_fmt_mp->width * pix_fmt_mp->height) / 2 +
				(ALIGN(pix_fmt_mp->width, 16) * 16);
			pix_fmt_mp->plane_fmt[2].sizeimage = 0;
			pix_fmt_mp->plane_fmt[1].bytesperline =
							pix_fmt_mp->width;
			pix_fmt_mp->plane_fmt[2].bytesperline = 0;
		} else if (pix_fmt_mp->num_planes == 3) {
			pix_fmt_mp->plane_fmt[1].sizeimage =
			pix_fmt_mp->plane_fmt[2].sizeimage =
				(pix_fmt_mp->width * pix_fmt_mp->height) / 4 +
				((ALIGN(pix_fmt_mp->width, 16) / 2) * 16);
			pix_fmt_mp->plane_fmt[1].bytesperline =
				pix_fmt_mp->plane_fmt[2].bytesperline =
				pix_fmt_mp->width / 2;
		}
	}

	for (i = 0; i < pix_fmt_mp->num_planes; i++)
		memset(&(pix_fmt_mp->plane_fmt[i].reserved[0]), 0x0,
			   sizeof(pix_fmt_mp->plane_fmt[0].reserved));

	pix_fmt_mp->flags = 0;
	memset(&pix_fmt_mp->reserved, 0x0,
		sizeof(pix_fmt_mp->reserved));

	return 0;
}

static void mtk_venc_set_param(struct mtk_vcodec_ctx *ctx,
				struct venc_enc_param *param)
{
	struct mtk_q_data *q_data_src = &ctx->q_data[MTK_Q_DATA_SRC];
	struct mtk_enc_params *enc_params = &ctx->enc_params;

	switch (q_data_src->fmt->fourcc) {
	case V4L2_PIX_FMT_YUV420M:
		param->input_yuv_fmt = VENC_YUV_FORMAT_I420;
		break;
	case V4L2_PIX_FMT_YVU420M:
		param->input_yuv_fmt = VENC_YUV_FORMAT_YV12;
		break;
	case V4L2_PIX_FMT_NV12M:
		param->input_yuv_fmt = VENC_YUV_FORMAT_NV12;
		break;
	case V4L2_PIX_FMT_NV21M:
		param->input_yuv_fmt = VENC_YUV_FORMAT_NV21;
		break;
	default:
		mtk_v4l2_err("Unsupported fourcc =%d", q_data_src->fmt->fourcc);
		break;
	}
	param->h264_profile = enc_params->h264_profile;
	param->h264_level = enc_params->h264_level;

	/* Config visible resolution */
	param->width = q_data_src->visible_width;
	param->height = q_data_src->visible_height;
	/* Config coded resolution */
	param->buf_width = q_data_src->coded_width;
	param->buf_height = q_data_src->coded_height;
	param->frm_rate = enc_params->framerate_num /
			enc_params->framerate_denom;
	param->intra_period = enc_params->intra_period;
	param->gop_size = enc_params->gop_size;
	param->bitrate = enc_params->bitrate;

	mtk_v4l2_debug(0,
		"fmt 0x%x, P/L %d/%d, w/h %d/%d, buf %d/%d, fps/bps %d/%d, gop %d, i_period %d",
		param->input_yuv_fmt, param->h264_profile,
		param->h264_level, param->width, param->height,
		param->buf_width, param->buf_height,
		param->frm_rate, param->bitrate,
		param->gop_size, param->intra_period);
}

static int vidioc_venc_s_fmt_cap(struct file *file, void *priv,
			     struct v4l2_format *f)
{
	struct mtk_vcodec_ctx *ctx = fh_to_ctx(priv);
	struct vb2_queue *vq;
	struct mtk_q_data *q_data;
	int i, ret;
	const struct mtk_video_fmt *fmt;

	vq = v4l2_m2m_get_vq(ctx->m2m_ctx, f->type);
	if (!vq) {
		mtk_v4l2_err("fail to get vq");
		return -EINVAL;
	}

	if (vb2_is_busy(vq)) {
		mtk_v4l2_err("queue busy");
		return -EBUSY;
	}

	q_data = mtk_venc_get_q_data(ctx, f->type);
	if (!q_data) {
		mtk_v4l2_err("fail to get q data");
		return -EINVAL;
	}

	fmt = mtk_venc_find_format(f);
	if (!fmt) {
		f->fmt.pix.pixelformat = mtk_video_formats[CAP_FMT_IDX].fourcc;
		fmt = mtk_venc_find_format(f);
	}

	q_data->fmt = fmt;
	ret = vidioc_try_fmt(f, q_data->fmt);
	if (ret)
		return ret;

	q_data->coded_width = f->fmt.pix_mp.width;
	q_data->coded_height = f->fmt.pix_mp.height;
	q_data->field = f->fmt.pix_mp.field;

	for (i = 0; i < f->fmt.pix_mp.num_planes; i++) {
		struct v4l2_plane_pix_format	*plane_fmt;

		plane_fmt = &f->fmt.pix_mp.plane_fmt[i];
		q_data->bytesperline[i]	= plane_fmt->bytesperline;
		q_data->sizeimage[i] = plane_fmt->sizeimage;
	}

	if (ctx->state == MTK_STATE_FREE) {
		ret = venc_if_init(ctx, q_data->fmt->fourcc);
		if (ret) {
			mtk_v4l2_err("venc_if_init failed=%d, codec type=%x",
					ret, q_data->fmt->fourcc);
			return -EBUSY;
		}
		ctx->state = MTK_STATE_INIT;
	}

	return 0;
}

static int vidioc_venc_s_fmt_out(struct file *file, void *priv,
			     struct v4l2_format *f)
{
	struct mtk_vcodec_ctx *ctx = fh_to_ctx(priv);
	struct vb2_queue *vq;
	struct mtk_q_data *q_data;
	int ret, i;
	const struct mtk_video_fmt *fmt;
	struct v4l2_pix_format_mplane *pix_fmt_mp = &f->fmt.pix_mp;

	vq = v4l2_m2m_get_vq(ctx->m2m_ctx, f->type);
	if (!vq) {
		mtk_v4l2_err("fail to get vq");
		return -EINVAL;
	}

	if (vb2_is_busy(vq)) {
		mtk_v4l2_err("queue busy");
		return -EBUSY;
	}

	q_data = mtk_venc_get_q_data(ctx, f->type);
	if (!q_data) {
		mtk_v4l2_err("fail to get q data");
		return -EINVAL;
	}

	fmt = mtk_venc_find_format(f);
	if (!fmt) {
		f->fmt.pix.pixelformat = mtk_video_formats[OUT_FMT_IDX].fourcc;
		fmt = mtk_venc_find_format(f);
	}

	pix_fmt_mp->height = clamp(pix_fmt_mp->height,
				MTK_VENC_MIN_H,
				MTK_VENC_MAX_H);
	pix_fmt_mp->width = clamp(pix_fmt_mp->width,
				MTK_VENC_MIN_W,
				MTK_VENC_MAX_W);

	q_data->visible_width = f->fmt.pix_mp.width;
	q_data->visible_height = f->fmt.pix_mp.height;
	q_data->fmt = fmt;
	ret = vidioc_try_fmt(f, q_data->fmt);
	if (ret)
		return ret;

	q_data->coded_width = f->fmt.pix_mp.width;
	q_data->coded_height = f->fmt.pix_mp.height;

	q_data->field = f->fmt.pix_mp.field;
	ctx->colorspace = f->fmt.pix_mp.colorspace;
	ctx->ycbcr_enc = f->fmt.pix_mp.ycbcr_enc;
	ctx->quantization = f->fmt.pix_mp.quantization;
	ctx->xfer_func = f->fmt.pix_mp.xfer_func;

	for (i = 0; i < f->fmt.pix_mp.num_planes; i++) {
		struct v4l2_plane_pix_format *plane_fmt;

		plane_fmt = &f->fmt.pix_mp.plane_fmt[i];
		q_data->bytesperline[i] = plane_fmt->bytesperline;
		q_data->sizeimage[i] = plane_fmt->sizeimage;
	}

	return 0;
}

static int vidioc_venc_g_fmt(struct file *file, void *priv,
			     struct v4l2_format *f)
{
	struct v4l2_pix_format_mplane *pix = &f->fmt.pix_mp;
	struct mtk_vcodec_ctx *ctx = fh_to_ctx(priv);
	struct vb2_queue *vq;
	struct mtk_q_data *q_data;
	int i;

	vq = v4l2_m2m_get_vq(ctx->m2m_ctx, f->type);
	if (!vq)
		return -EINVAL;

	q_data = mtk_venc_get_q_data(ctx, f->type);

	pix->width = q_data->coded_width;
	pix->height = q_data->coded_height;
	pix->pixelformat = q_data->fmt->fourcc;
	pix->field = q_data->field;
	pix->num_planes = q_data->fmt->num_planes;
	for (i = 0; i < pix->num_planes; i++) {
		pix->plane_fmt[i].bytesperline = q_data->bytesperline[i];
		pix->plane_fmt[i].sizeimage = q_data->sizeimage[i];
		memset(&(pix->plane_fmt[i].reserved[0]), 0x0,
		       sizeof(pix->plane_fmt[i].reserved));
	}

	pix->flags = 0;
	pix->colorspace = ctx->colorspace;
	pix->ycbcr_enc = ctx->ycbcr_enc;
	pix->quantization = ctx->quantization;
	pix->xfer_func = ctx->xfer_func;

	return 0;
}

static int vidioc_try_fmt_vid_cap_mplane(struct file *file, void *priv,
					 struct v4l2_format *f)
{
	const struct mtk_video_fmt *fmt;
	struct mtk_vcodec_ctx *ctx = fh_to_ctx(priv);

	fmt = mtk_venc_find_format(f);
	if (!fmt) {
		f->fmt.pix.pixelformat = mtk_video_formats[CAP_FMT_IDX].fourcc;
		fmt = mtk_venc_find_format(f);
	}
	f->fmt.pix_mp.colorspace = ctx->colorspace;
	f->fmt.pix_mp.ycbcr_enc = ctx->ycbcr_enc;
	f->fmt.pix_mp.quantization = ctx->quantization;
	f->fmt.pix_mp.xfer_func = ctx->xfer_func;

	return vidioc_try_fmt(f, fmt);
}

static int vidioc_try_fmt_vid_out_mplane(struct file *file, void *priv,
					 struct v4l2_format *f)
{
	const struct mtk_video_fmt *fmt;

	fmt = mtk_venc_find_format(f);
	if (!fmt) {
		f->fmt.pix.pixelformat = mtk_video_formats[OUT_FMT_IDX].fourcc;
		fmt = mtk_venc_find_format(f);
	}
	if (!f->fmt.pix_mp.colorspace) {
		f->fmt.pix_mp.colorspace = V4L2_COLORSPACE_REC709;
		f->fmt.pix_mp.ycbcr_enc = V4L2_YCBCR_ENC_DEFAULT;
		f->fmt.pix_mp.quantization = V4L2_QUANTIZATION_DEFAULT;
		f->fmt.pix_mp.xfer_func = V4L2_XFER_FUNC_DEFAULT;
	}

	return vidioc_try_fmt(f, fmt);
}

static int vidioc_venc_g_selection(struct file *file, void *priv,
				     struct v4l2_selection *s)
{
	struct mtk_vcodec_ctx *ctx = fh_to_ctx(priv);
	struct mtk_q_data *q_data;

	if (s->type != V4L2_BUF_TYPE_VIDEO_OUTPUT)
		return -EINVAL;

	q_data = mtk_venc_get_q_data(ctx, s->type);
	if (!q_data)
		return -EINVAL;

	switch (s->target) {
	case V4L2_SEL_TGT_CROP_DEFAULT:
	case V4L2_SEL_TGT_CROP_BOUNDS:
		s->r.top = 0;
		s->r.left = 0;
		s->r.width = q_data->coded_width;
		s->r.height = q_data->coded_height;
		break;
	case V4L2_SEL_TGT_CROP:
		s->r.top = 0;
		s->r.left = 0;
		s->r.width = q_data->visible_width;
		s->r.height = q_data->visible_height;
		break;
	default:
		return -EINVAL;
	}

	return 0;
}

static int vidioc_venc_s_selection(struct file *file, void *priv,
				     struct v4l2_selection *s)
{
	struct mtk_vcodec_ctx *ctx = fh_to_ctx(priv);
	struct mtk_q_data *q_data;

	if (s->type != V4L2_BUF_TYPE_VIDEO_OUTPUT)
		return -EINVAL;

	q_data = mtk_venc_get_q_data(ctx, s->type);
	if (!q_data)
		return -EINVAL;

	switch (s->target) {
	case V4L2_SEL_TGT_CROP:
		/* Only support crop from (0,0) */
		s->r.top = 0;
		s->r.left = 0;
		s->r.width = min(s->r.width, q_data->coded_width);
		s->r.height = min(s->r.height, q_data->coded_height);
		q_data->visible_width = s->r.width;
		q_data->visible_height = s->r.height;
		break;
	default:
		return -EINVAL;
	}
	return 0;
}

static int vidioc_venc_qbuf(struct file *file, void *priv,
			    struct v4l2_buffer *buf)
{
	struct mtk_vcodec_ctx *ctx = fh_to_ctx(priv);

	if (ctx->state == MTK_STATE_ABORT) {
		mtk_v4l2_err("[%d] Call on QBUF after unrecoverable error",
				ctx->id);
		return -EIO;
	}

	return v4l2_m2m_qbuf(file, ctx->m2m_ctx, buf);
}

static int vidioc_venc_dqbuf(struct file *file, void *priv,
			     struct v4l2_buffer *buf)
{
	struct mtk_vcodec_ctx *ctx = fh_to_ctx(priv);

	if (ctx->state == MTK_STATE_ABORT) {
		mtk_v4l2_err("[%d] Call on QBUF after unrecoverable error",
				ctx->id);
		return -EIO;
	}

	return v4l2_m2m_dqbuf(file, ctx->m2m_ctx, buf);
}

const struct v4l2_ioctl_ops mtk_venc_ioctl_ops = {
	.vidioc_streamon		= v4l2_m2m_ioctl_streamon,
	.vidioc_streamoff		= v4l2_m2m_ioctl_streamoff,

	.vidioc_reqbufs			= v4l2_m2m_ioctl_reqbufs,
	.vidioc_querybuf		= v4l2_m2m_ioctl_querybuf,
	.vidioc_qbuf			= vidioc_venc_qbuf,
	.vidioc_dqbuf			= vidioc_venc_dqbuf,

	.vidioc_querycap		= vidioc_venc_querycap,
	.vidioc_enum_fmt_vid_cap	= vidioc_enum_fmt_vid_cap,
	.vidioc_enum_fmt_vid_out	= vidioc_enum_fmt_vid_out,
	.vidioc_enum_framesizes		= vidioc_enum_framesizes,

	.vidioc_try_fmt_vid_cap_mplane	= vidioc_try_fmt_vid_cap_mplane,
	.vidioc_try_fmt_vid_out_mplane	= vidioc_try_fmt_vid_out_mplane,
	.vidioc_expbuf			= v4l2_m2m_ioctl_expbuf,
	.vidioc_subscribe_event		= v4l2_ctrl_subscribe_event,
	.vidioc_unsubscribe_event	= v4l2_event_unsubscribe,

	.vidioc_s_parm			= vidioc_venc_s_parm,
	.vidioc_g_parm			= vidioc_venc_g_parm,
	.vidioc_s_fmt_vid_cap_mplane	= vidioc_venc_s_fmt_cap,
	.vidioc_s_fmt_vid_out_mplane	= vidioc_venc_s_fmt_out,

	.vidioc_g_fmt_vid_cap_mplane	= vidioc_venc_g_fmt,
	.vidioc_g_fmt_vid_out_mplane	= vidioc_venc_g_fmt,

	.vidioc_create_bufs		= v4l2_m2m_ioctl_create_bufs,
	.vidioc_prepare_buf		= v4l2_m2m_ioctl_prepare_buf,

	.vidioc_g_selection		= vidioc_venc_g_selection,
	.vidioc_s_selection		= vidioc_venc_s_selection,
};

static int vb2ops_venc_queue_setup(struct vb2_queue *vq,
				   unsigned int *nbuffers,
				   unsigned int *nplanes,
				   unsigned int sizes[],
				   struct device *alloc_devs[])
{
	struct mtk_vcodec_ctx *ctx = vb2_get_drv_priv(vq);
	struct mtk_q_data *q_data;
	unsigned int i;

	q_data = mtk_venc_get_q_data(ctx, vq->type);

	if (q_data == NULL)
		return -EINVAL;

	if (*nplanes) {
		for (i = 0; i < *nplanes; i++)
			if (sizes[i] < q_data->sizeimage[i])
				return -EINVAL;
	} else {
		*nplanes = q_data->fmt->num_planes;
		for (i = 0; i < *nplanes; i++)
			sizes[i] = q_data->sizeimage[i];
	}

	return 0;
}

static int vb2ops_venc_buf_prepare(struct vb2_buffer *vb)
{
	struct mtk_vcodec_ctx *ctx = vb2_get_drv_priv(vb->vb2_queue);
	struct mtk_q_data *q_data;
	int i;

	q_data = mtk_venc_get_q_data(ctx, vb->vb2_queue->type);

	for (i = 0; i < q_data->fmt->num_planes; i++) {
		if (vb2_plane_size(vb, i) < q_data->sizeimage[i]) {
			mtk_v4l2_err("data will not fit into plane %d (%lu < %d)",
				i, vb2_plane_size(vb, i),
				q_data->sizeimage[i]);
			return -EINVAL;
		}
	}

	return 0;
}

static void vb2ops_venc_buf_queue(struct vb2_buffer *vb)
{
	struct mtk_vcodec_ctx *ctx = vb2_get_drv_priv(vb->vb2_queue);
	struct vb2_v4l2_buffer *vb2_v4l2 =
			container_of(vb, struct vb2_v4l2_buffer, vb2_buf);

	struct mtk_video_enc_buf *mtk_buf =
			container_of(vb2_v4l2, struct mtk_video_enc_buf, vb);

	if ((vb->vb2_queue->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) &&
	    (ctx->param_change != MTK_ENCODE_PARAM_NONE)) {
		mtk_v4l2_debug(1, "[%d] Before id=%d encode parameter change %x",
			       ctx->id,
			       mtk_buf->vb.vb2_buf.index,
			       ctx->param_change);
		mtk_buf->param_change = ctx->param_change;
		mtk_buf->enc_params = ctx->enc_params;
		ctx->param_change = MTK_ENCODE_PARAM_NONE;
	}

	v4l2_m2m_buf_queue(ctx->m2m_ctx, to_vb2_v4l2_buffer(vb));
}

static int vb2ops_venc_start_streaming(struct vb2_queue *q, unsigned int count)
{
	struct mtk_vcodec_ctx *ctx = vb2_get_drv_priv(q);
	struct venc_enc_param param;
	int ret;
	int i;

	/* Once state turn into MTK_STATE_ABORT, we need stop_streaming
	  * to clear it
	  */
	if ((ctx->state == MTK_STATE_ABORT) || (ctx->state == MTK_STATE_FREE)) {
		ret = -EIO;
		goto err_set_param;
	}

	/* Do the initialization when both start_streaming have been called */
	if (V4L2_TYPE_IS_OUTPUT(q->type)) {
		if (!vb2_start_streaming_called(&ctx->m2m_ctx->cap_q_ctx.q))
			return 0;
	} else {
		if (!vb2_start_streaming_called(&ctx->m2m_ctx->out_q_ctx.q))
			return 0;
	}

	mtk_venc_set_param(ctx, &param);
	ret = venc_if_set_param(ctx, VENC_SET_PARAM_ENC, &param);
	if (ret) {
		mtk_v4l2_err("venc_if_set_param failed=%d", ret);
		ctx->state = MTK_STATE_ABORT;
		goto err_set_param;
	}
	ctx->param_change = MTK_ENCODE_PARAM_NONE;

	if ((ctx->q_data[MTK_Q_DATA_DST].fmt->fourcc == V4L2_PIX_FMT_H264) &&
	    (ctx->enc_params.seq_hdr_mode !=
				V4L2_MPEG_VIDEO_HEADER_MODE_SEPARATE)) {
		ret = venc_if_set_param(ctx,
					VENC_SET_PARAM_PREPEND_HEADER,
					NULL);
		if (ret) {
			mtk_v4l2_err("venc_if_set_param failed=%d", ret);
			ctx->state = MTK_STATE_ABORT;
			goto err_set_param;
		}
		ctx->state = MTK_STATE_HEADER;
	}

	return 0;

err_set_param:
	for (i = 0; i < q->num_buffers; ++i) {
		struct vb2_buffer *buf = vb2_get_buffer(q, i);

		/*
		 * FIXME: This check is not needed as only active buffers
		 * can be marked as done.
		 */
		if (buf->state == VB2_BUF_STATE_ACTIVE) {
			mtk_v4l2_debug(0, "[%d] id=%d, type=%d, %d -> VB2_BUF_STATE_QUEUED",
					ctx->id, i, q->type,
					(int)buf->state);
			v4l2_m2m_buf_done(to_vb2_v4l2_buffer(buf),
					  VB2_BUF_STATE_QUEUED);
		}
	}

	return ret;
}

static void vb2ops_venc_stop_streaming(struct vb2_queue *q)
{
	struct mtk_vcodec_ctx *ctx = vb2_get_drv_priv(q);
	struct vb2_v4l2_buffer *src_buf, *dst_buf;
	int ret;

	mtk_v4l2_debug(2, "[%d]-> type=%d", ctx->id, q->type);

	if (q->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) {
		while ((dst_buf = v4l2_m2m_dst_buf_remove(ctx->m2m_ctx))) {
			dst_buf->vb2_buf.planes[0].bytesused = 0;
			v4l2_m2m_buf_done(dst_buf, VB2_BUF_STATE_ERROR);
		}
	} else {
		while ((src_buf = v4l2_m2m_src_buf_remove(ctx->m2m_ctx)))
			v4l2_m2m_buf_done(src_buf, VB2_BUF_STATE_ERROR);
	}

	if ((q->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE &&
	     vb2_is_streaming(&ctx->m2m_ctx->out_q_ctx.q)) ||
	    (q->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE &&
	     vb2_is_streaming(&ctx->m2m_ctx->cap_q_ctx.q))) {
		mtk_v4l2_debug(1, "[%d]-> q type %d out=%d cap=%d",
			       ctx->id, q->type,
			       vb2_is_streaming(&ctx->m2m_ctx->out_q_ctx.q),
			       vb2_is_streaming(&ctx->m2m_ctx->cap_q_ctx.q));
		return;
	}

	/* Release the encoder if both streams are stopped. */
	ret = venc_if_deinit(ctx);
	if (ret)
		mtk_v4l2_err("venc_if_deinit failed=%d", ret);

	ctx->state = MTK_STATE_FREE;
}

static const struct vb2_ops mtk_venc_vb2_ops = {
	.queue_setup		= vb2ops_venc_queue_setup,
	.buf_prepare		= vb2ops_venc_buf_prepare,
	.buf_queue		= vb2ops_venc_buf_queue,
	.wait_prepare		= vb2_ops_wait_prepare,
	.wait_finish		= vb2_ops_wait_finish,
	.start_streaming	= vb2ops_venc_start_streaming,
	.stop_streaming		= vb2ops_venc_stop_streaming,
};

static int mtk_venc_encode_header(void *priv)
{
	struct mtk_vcodec_ctx *ctx = priv;
	int ret;
	struct vb2_v4l2_buffer *src_buf, *dst_buf;
	struct mtk_vcodec_mem bs_buf;
	struct venc_done_result enc_result;

	dst_buf = v4l2_m2m_dst_buf_remove(ctx->m2m_ctx);
	if (!dst_buf) {
		mtk_v4l2_debug(1, "No dst buffer");
		return -EINVAL;
	}

	bs_buf.va = vb2_plane_vaddr(&dst_buf->vb2_buf, 0);
	bs_buf.dma_addr = vb2_dma_contig_plane_dma_addr(&dst_buf->vb2_buf, 0);
	bs_buf.size = (size_t)dst_buf->vb2_buf.planes[0].length;

	mtk_v4l2_debug(1,
			"[%d] buf id=%d va=0x%p dma_addr=0x%llx size=%zu",
			ctx->id,
			dst_buf->vb2_buf.index, bs_buf.va,
			(u64)bs_buf.dma_addr,
			bs_buf.size);

	ret = venc_if_encode(ctx,
			VENC_START_OPT_ENCODE_SEQUENCE_HEADER,
			NULL, &bs_buf, &enc_result);

	if (ret) {
		dst_buf->vb2_buf.planes[0].bytesused = 0;
		ctx->state = MTK_STATE_ABORT;
		v4l2_m2m_buf_done(dst_buf, VB2_BUF_STATE_ERROR);
		mtk_v4l2_err("venc_if_encode failed=%d", ret);
		return -EINVAL;
	}
	src_buf = v4l2_m2m_next_src_buf(ctx->m2m_ctx);
	if (src_buf) {
		dst_buf->vb2_buf.timestamp = src_buf->vb2_buf.timestamp;
		dst_buf->timecode = src_buf->timecode;
	} else {
		mtk_v4l2_err("No timestamp for the header buffer.");
	}

	ctx->state = MTK_STATE_HEADER;
	dst_buf->vb2_buf.planes[0].bytesused = enc_result.bs_size;
	v4l2_m2m_buf_done(dst_buf, VB2_BUF_STATE_DONE);

	return 0;
}

static int mtk_venc_param_change(struct mtk_vcodec_ctx *ctx)
{
	struct venc_enc_param enc_prm;
	struct vb2_v4l2_buffer *vb2_v4l2 = v4l2_m2m_next_src_buf(ctx->m2m_ctx);
	struct mtk_video_enc_buf *mtk_buf =
			container_of(vb2_v4l2, struct mtk_video_enc_buf, vb);

	int ret = 0;

	memset(&enc_prm, 0, sizeof(enc_prm));
	if (mtk_buf->param_change == MTK_ENCODE_PARAM_NONE)
		return 0;

	if (mtk_buf->param_change & MTK_ENCODE_PARAM_BITRATE) {
		enc_prm.bitrate = mtk_buf->enc_params.bitrate;
		mtk_v4l2_debug(1, "[%d] id=%d, change param br=%d",
				ctx->id,
				mtk_buf->vb.vb2_buf.index,
				enc_prm.bitrate);
		ret |= venc_if_set_param(ctx,
					 VENC_SET_PARAM_ADJUST_BITRATE,
					 &enc_prm);
	}
	if (!ret && mtk_buf->param_change & MTK_ENCODE_PARAM_FRAMERATE) {
		enc_prm.frm_rate = mtk_buf->enc_params.framerate_num /
				   mtk_buf->enc_params.framerate_denom;
		mtk_v4l2_debug(1, "[%d] id=%d, change param fr=%d",
			       ctx->id,
			       mtk_buf->vb.vb2_buf.index,
			       enc_prm.frm_rate);
		ret |= venc_if_set_param(ctx,
					 VENC_SET_PARAM_ADJUST_FRAMERATE,
					 &enc_prm);
	}
	if (!ret && mtk_buf->param_change & MTK_ENCODE_PARAM_GOP_SIZE) {
		enc_prm.gop_size = mtk_buf->enc_params.gop_size;
		mtk_v4l2_debug(1, "change param intra period=%d",
			       enc_prm.gop_size);
		ret |= venc_if_set_param(ctx,
					 VENC_SET_PARAM_GOP_SIZE,
					 &enc_prm);
	}
	if (!ret && mtk_buf->param_change & MTK_ENCODE_PARAM_FORCE_INTRA) {
		mtk_v4l2_debug(1, "[%d] id=%d, change param force I=%d",
				ctx->id,
				mtk_buf->vb.vb2_buf.index,
				mtk_buf->enc_params.force_intra);
		if (mtk_buf->enc_params.force_intra)
			ret |= venc_if_set_param(ctx,
						 VENC_SET_PARAM_FORCE_INTRA,
						 NULL);
	}

	mtk_buf->param_change = MTK_ENCODE_PARAM_NONE;

	if (ret) {
		ctx->state = MTK_STATE_ABORT;
		mtk_v4l2_err("venc_if_set_param %d failed=%d",
				mtk_buf->param_change, ret);
		return -1;
	}

	return 0;
}

/*
 * v4l2_m2m_streamoff() holds dev_mutex and waits mtk_venc_worker()
 * to call v4l2_m2m_job_finish().
 * If mtk_venc_worker() tries to acquire dev_mutex, it will deadlock.
 * So this function must not try to acquire dev->dev_mutex.
 * This means v4l2 ioctls and mtk_venc_worker() can run at the same time.
 * mtk_venc_worker() should be carefully implemented to avoid bugs.
 */
static void mtk_venc_worker(struct work_struct *work)
{
	struct mtk_vcodec_ctx *ctx = container_of(work, struct mtk_vcodec_ctx,
				    encode_work);
	struct vb2_v4l2_buffer *src_buf, *dst_buf;
	struct venc_frm_buf frm_buf;
	struct mtk_vcodec_mem bs_buf;
	struct venc_done_result enc_result;
	int ret, i;

	/* check dst_buf, dst_buf may be removed in device_run
	 * to stored encdoe header so we need check dst_buf and
	 * call job_finish here to prevent recursion
	 */
	dst_buf = v4l2_m2m_dst_buf_remove(ctx->m2m_ctx);
	if (!dst_buf) {
		v4l2_m2m_job_finish(ctx->dev->m2m_dev_enc, ctx->m2m_ctx);
		return;
	}

	src_buf = v4l2_m2m_src_buf_remove(ctx->m2m_ctx);
	memset(&frm_buf, 0, sizeof(frm_buf));
	for (i = 0; i < src_buf->vb2_buf.num_planes ; i++) {
		frm_buf.fb_addr[i].dma_addr =
				vb2_dma_contig_plane_dma_addr(&src_buf->vb2_buf, i);
		frm_buf.fb_addr[i].size =
				(size_t)src_buf->vb2_buf.planes[i].length;
	}
	bs_buf.va = vb2_plane_vaddr(&dst_buf->vb2_buf, 0);
	bs_buf.dma_addr = vb2_dma_contig_plane_dma_addr(&dst_buf->vb2_buf, 0);
	bs_buf.size = (size_t)dst_buf->vb2_buf.planes[0].length;

	mtk_v4l2_debug(2,
			"Framebuf PA=%llx Size=0x%zx;PA=0x%llx Size=0x%zx;PA=0x%llx Size=%zu",
			(u64)frm_buf.fb_addr[0].dma_addr,
			frm_buf.fb_addr[0].size,
			(u64)frm_buf.fb_addr[1].dma_addr,
			frm_buf.fb_addr[1].size,
			(u64)frm_buf.fb_addr[2].dma_addr,
			frm_buf.fb_addr[2].size);

	ret = venc_if_encode(ctx, VENC_START_OPT_ENCODE_FRAME,
			     &frm_buf, &bs_buf, &enc_result);

	dst_buf->vb2_buf.timestamp = src_buf->vb2_buf.timestamp;
	dst_buf->timecode = src_buf->timecode;

	if (enc_result.is_key_frm)
		dst_buf->flags |= V4L2_BUF_FLAG_KEYFRAME;

	if (ret) {
		v4l2_m2m_buf_done(src_buf, VB2_BUF_STATE_ERROR);
		dst_buf->vb2_buf.planes[0].bytesused = 0;
		v4l2_m2m_buf_done(dst_buf, VB2_BUF_STATE_ERROR);
		mtk_v4l2_err("venc_if_encode failed=%d", ret);
	} else {
		v4l2_m2m_buf_done(src_buf, VB2_BUF_STATE_DONE);
		dst_buf->vb2_buf.planes[0].bytesused = enc_result.bs_size;
		v4l2_m2m_buf_done(dst_buf, VB2_BUF_STATE_DONE);
		mtk_v4l2_debug(2, "venc_if_encode bs size=%d",
				 enc_result.bs_size);
	}

	v4l2_m2m_job_finish(ctx->dev->m2m_dev_enc, ctx->m2m_ctx);

	mtk_v4l2_debug(1, "<=== src_buf[%d] dst_buf[%d] venc_if_encode ret=%d Size=%u===>",
			src_buf->vb2_buf.index, dst_buf->vb2_buf.index, ret,
			enc_result.bs_size);
}

static void m2mops_venc_device_run(void *priv)
{
	struct mtk_vcodec_ctx *ctx = priv;

	if ((ctx->q_data[MTK_Q_DATA_DST].fmt->fourcc == V4L2_PIX_FMT_H264) &&
	    (ctx->state != MTK_STATE_HEADER)) {
		/* encode h264 sps/pps header */
		mtk_venc_encode_header(ctx);
		queue_work(ctx->dev->encode_workqueue, &ctx->encode_work);
		return;
	}

	mtk_venc_param_change(ctx);
	queue_work(ctx->dev->encode_workqueue, &ctx->encode_work);
}

static int m2mops_venc_job_ready(void *m2m_priv)
{
	struct mtk_vcodec_ctx *ctx = m2m_priv;

	if (ctx->state == MTK_STATE_ABORT || ctx->state == MTK_STATE_FREE) {
		mtk_v4l2_debug(3, "[%d]Not ready: state=0x%x.",
			       ctx->id, ctx->state);
		return 0;
	}

	return 1;
}

static void m2mops_venc_job_abort(void *priv)
{
	struct mtk_vcodec_ctx *ctx = priv;

	ctx->state = MTK_STATE_ABORT;
}

const struct v4l2_m2m_ops mtk_venc_m2m_ops = {
	.device_run	= m2mops_venc_device_run,
	.job_ready	= m2mops_venc_job_ready,
	.job_abort	= m2mops_venc_job_abort,
};

void mtk_vcodec_enc_set_default_params(struct mtk_vcodec_ctx *ctx)
{
	struct mtk_q_data *q_data;

	ctx->m2m_ctx->q_lock = &ctx->dev->dev_mutex;
	ctx->fh.m2m_ctx = ctx->m2m_ctx;
	ctx->fh.ctrl_handler = &ctx->ctrl_hdl;
	INIT_WORK(&ctx->encode_work, mtk_venc_worker);

	ctx->colorspace = V4L2_COLORSPACE_REC709;
	ctx->ycbcr_enc = V4L2_YCBCR_ENC_DEFAULT;
	ctx->quantization = V4L2_QUANTIZATION_DEFAULT;
	ctx->xfer_func = V4L2_XFER_FUNC_DEFAULT;

	q_data = &ctx->q_data[MTK_Q_DATA_SRC];
	memset(q_data, 0, sizeof(struct mtk_q_data));
	q_data->visible_width = DFT_CFG_WIDTH;
	q_data->visible_height = DFT_CFG_HEIGHT;
	q_data->coded_width = DFT_CFG_WIDTH;
	q_data->coded_height = DFT_CFG_HEIGHT;
	q_data->field = V4L2_FIELD_NONE;

	q_data->fmt = &mtk_video_formats[OUT_FMT_IDX];

	v4l_bound_align_image(&q_data->coded_width,
				MTK_VENC_MIN_W,
				MTK_VENC_MAX_W, 4,
				&q_data->coded_height,
				MTK_VENC_MIN_H,
				MTK_VENC_MAX_H, 5, 6);

	if (q_data->coded_width < DFT_CFG_WIDTH &&
		(q_data->coded_width + 16) <= MTK_VENC_MAX_W)
		q_data->coded_width += 16;
	if (q_data->coded_height < DFT_CFG_HEIGHT &&
		(q_data->coded_height + 32) <= MTK_VENC_MAX_H)
		q_data->coded_height += 32;

	q_data->sizeimage[0] =
		q_data->coded_width * q_data->coded_height+
		((ALIGN(q_data->coded_width, 16) * 2) * 16);
	q_data->bytesperline[0] = q_data->coded_width;
	q_data->sizeimage[1] =
		(q_data->coded_width * q_data->coded_height) / 2 +
		(ALIGN(q_data->coded_width, 16) * 16);
	q_data->bytesperline[1] = q_data->coded_width;

	q_data = &ctx->q_data[MTK_Q_DATA_DST];
	memset(q_data, 0, sizeof(struct mtk_q_data));
	q_data->coded_width = DFT_CFG_WIDTH;
	q_data->coded_height = DFT_CFG_HEIGHT;
	q_data->fmt = &mtk_video_formats[CAP_FMT_IDX];
	q_data->field = V4L2_FIELD_NONE;
	ctx->q_data[MTK_Q_DATA_DST].sizeimage[0] =
		DFT_CFG_WIDTH * DFT_CFG_HEIGHT;
	ctx->q_data[MTK_Q_DATA_DST].bytesperline[0] = 0;

}

int mtk_vcodec_enc_ctrls_setup(struct mtk_vcodec_ctx *ctx)
{
	const struct v4l2_ctrl_ops *ops = &mtk_vcodec_enc_ctrl_ops;
	struct v4l2_ctrl_handler *handler = &ctx->ctrl_hdl;

	v4l2_ctrl_handler_init(handler, MTK_MAX_CTRLS_HINT);

	v4l2_ctrl_new_std(handler, ops, V4L2_CID_MPEG_VIDEO_BITRATE,
			1, 4000000, 1, 4000000);
	v4l2_ctrl_new_std(handler, ops, V4L2_CID_MPEG_VIDEO_B_FRAMES,
			0, 2, 1, 0);
	v4l2_ctrl_new_std(handler, ops, V4L2_CID_MPEG_VIDEO_FRAME_RC_ENABLE,
			0, 1, 1, 1);
	v4l2_ctrl_new_std(handler, ops, V4L2_CID_MPEG_VIDEO_H264_MAX_QP,
			0, 51, 1, 51);
	v4l2_ctrl_new_std(handler, ops, V4L2_CID_MPEG_VIDEO_H264_I_PERIOD,
			0, 65535, 1, 0);
	v4l2_ctrl_new_std(handler, ops, V4L2_CID_MPEG_VIDEO_GOP_SIZE,
			0, 65535, 1, 0);
	v4l2_ctrl_new_std(handler, ops, V4L2_CID_MPEG_VIDEO_MB_RC_ENABLE,
			0, 1, 1, 0);
	v4l2_ctrl_new_std(handler, ops, V4L2_CID_MPEG_VIDEO_FORCE_KEY_FRAME,
			0, 0, 0, 0);
	v4l2_ctrl_new_std_menu(handler, ops,
			V4L2_CID_MPEG_VIDEO_HEADER_MODE,
			V4L2_MPEG_VIDEO_HEADER_MODE_JOINED_WITH_1ST_FRAME,
			0, V4L2_MPEG_VIDEO_HEADER_MODE_SEPARATE);
	v4l2_ctrl_new_std_menu(handler, ops, V4L2_CID_MPEG_VIDEO_H264_PROFILE,
			V4L2_MPEG_VIDEO_H264_PROFILE_HIGH,
			0, V4L2_MPEG_VIDEO_H264_PROFILE_HIGH);
	v4l2_ctrl_new_std_menu(handler, ops, V4L2_CID_MPEG_VIDEO_H264_LEVEL,
			V4L2_MPEG_VIDEO_H264_LEVEL_4_2,
			0, V4L2_MPEG_VIDEO_H264_LEVEL_4_0);
	if (handler->error) {
		mtk_v4l2_err("Init control handler fail %d",
				handler->error);
		return handler->error;
	}

	v4l2_ctrl_handler_setup(&ctx->ctrl_hdl);

	return 0;
}

int mtk_vcodec_enc_queue_init(void *priv, struct vb2_queue *src_vq,
			      struct vb2_queue *dst_vq)
{
	struct mtk_vcodec_ctx *ctx = priv;
	int ret;

	/* Note: VB2_USERPTR works with dma-contig because mt8173
	 * support iommu
	 * https://patchwork.kernel.org/patch/8335461/
	 * https://patchwork.kernel.org/patch/7596181/
	 */
	src_vq->type		= V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE;
	src_vq->io_modes	= VB2_DMABUF | VB2_MMAP | VB2_USERPTR;
	src_vq->drv_priv	= ctx;
	src_vq->buf_struct_size = sizeof(struct mtk_video_enc_buf);
	src_vq->ops		= &mtk_venc_vb2_ops;
	src_vq->mem_ops		= &vb2_dma_contig_memops;
	src_vq->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_COPY;
	src_vq->lock		= &ctx->dev->dev_mutex;
	src_vq->dev		= &ctx->dev->plat_dev->dev;

	ret = vb2_queue_init(src_vq);
	if (ret)
		return ret;

	dst_vq->type		= V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE;
	dst_vq->io_modes	= VB2_DMABUF | VB2_MMAP | VB2_USERPTR;
	dst_vq->drv_priv	= ctx;
	dst_vq->buf_struct_size = sizeof(struct v4l2_m2m_buffer);
	dst_vq->ops		= &mtk_venc_vb2_ops;
	dst_vq->mem_ops		= &vb2_dma_contig_memops;
	dst_vq->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_COPY;
	dst_vq->lock		= &ctx->dev->dev_mutex;
	dst_vq->dev		= &ctx->dev->plat_dev->dev;

	return vb2_queue_init(dst_vq);
}

int mtk_venc_unlock(struct mtk_vcodec_ctx *ctx)
{
	struct mtk_vcodec_dev *dev = ctx->dev;

	mutex_unlock(&dev->enc_mutex);
	return 0;
}

int mtk_venc_lock(struct mtk_vcodec_ctx *ctx)
{
	struct mtk_vcodec_dev *dev = ctx->dev;

	mutex_lock(&dev->enc_mutex);
	return 0;
}

void mtk_vcodec_enc_release(struct mtk_vcodec_ctx *ctx)
{
	int ret = venc_if_deinit(ctx);

	if (ret)
		mtk_v4l2_err("venc_if_deinit failed=%d", ret);

	ctx->state = MTK_STATE_FREE;
}