1 // SPDX-License-Identifier: GPL-2.0
2 /*
3 * Copyright (c) 2016 MediaTek Inc.
4 * Author: PC Chen <pc.chen@mediatek.com>
5 *         Tiffany Lin <tiffany.lin@mediatek.com>
6 */
7 
8 #include <media/v4l2-event.h>
9 #include <media/v4l2-mem2mem.h>
10 #include <media/videobuf2-dma-contig.h>
11 #include <soc/mediatek/smi.h>
12 
13 #include "mtk_vcodec_drv.h"
14 #include "mtk_vcodec_enc.h"
15 #include "mtk_vcodec_intr.h"
16 #include "mtk_vcodec_util.h"
17 #include "venc_drv_if.h"
18 
19 #define MTK_VENC_MIN_W	160U
20 #define MTK_VENC_MIN_H	128U
21 #define MTK_VENC_MAX_W	1920U
22 #define MTK_VENC_MAX_H	1088U
23 #define DFT_CFG_WIDTH	MTK_VENC_MIN_W
24 #define DFT_CFG_HEIGHT	MTK_VENC_MIN_H
25 #define MTK_MAX_CTRLS_HINT	20
26 #define OUT_FMT_IDX		0
27 #define CAP_FMT_IDX		4
28 
29 
30 static void mtk_venc_worker(struct work_struct *work);
31 
32 static const struct mtk_video_fmt mtk_video_formats[] = {
33 	{
34 		.fourcc = V4L2_PIX_FMT_NV12M,
35 		.type = MTK_FMT_FRAME,
36 		.num_planes = 2,
37 	},
38 	{
39 		.fourcc = V4L2_PIX_FMT_NV21M,
40 		.type = MTK_FMT_FRAME,
41 		.num_planes = 2,
42 	},
43 	{
44 		.fourcc = V4L2_PIX_FMT_YUV420M,
45 		.type = MTK_FMT_FRAME,
46 		.num_planes = 3,
47 	},
48 	{
49 		.fourcc = V4L2_PIX_FMT_YVU420M,
50 		.type = MTK_FMT_FRAME,
51 		.num_planes = 3,
52 	},
53 	{
54 		.fourcc = V4L2_PIX_FMT_H264,
55 		.type = MTK_FMT_ENC,
56 		.num_planes = 1,
57 	},
58 	{
59 		.fourcc = V4L2_PIX_FMT_VP8,
60 		.type = MTK_FMT_ENC,
61 		.num_planes = 1,
62 	},
63 };
64 
65 #define NUM_FORMATS ARRAY_SIZE(mtk_video_formats)
66 
67 static const struct mtk_codec_framesizes mtk_venc_framesizes[] = {
68 	{
69 		.fourcc	= V4L2_PIX_FMT_H264,
70 		.stepwise = { MTK_VENC_MIN_W, MTK_VENC_MAX_W, 16,
71 			      MTK_VENC_MIN_H, MTK_VENC_MAX_H, 16 },
72 	},
73 	{
74 		.fourcc = V4L2_PIX_FMT_VP8,
75 		.stepwise = { MTK_VENC_MIN_W, MTK_VENC_MAX_W, 16,
76 			      MTK_VENC_MIN_H, MTK_VENC_MAX_H, 16 },
77 	},
78 };
79 
80 #define NUM_SUPPORTED_FRAMESIZE ARRAY_SIZE(mtk_venc_framesizes)
81 
vidioc_venc_s_ctrl(struct v4l2_ctrl * ctrl)82 static int vidioc_venc_s_ctrl(struct v4l2_ctrl *ctrl)
83 {
84 	struct mtk_vcodec_ctx *ctx = ctrl_to_ctx(ctrl);
85 	struct mtk_enc_params *p = &ctx->enc_params;
86 	int ret = 0;
87 
88 	switch (ctrl->id) {
89 	case V4L2_CID_MPEG_VIDEO_BITRATE:
90 		mtk_v4l2_debug(2, "V4L2_CID_MPEG_VIDEO_BITRATE val = %d",
91 			       ctrl->val);
92 		p->bitrate = ctrl->val;
93 		ctx->param_change |= MTK_ENCODE_PARAM_BITRATE;
94 		break;
95 	case V4L2_CID_MPEG_VIDEO_B_FRAMES:
96 		mtk_v4l2_debug(2, "V4L2_CID_MPEG_VIDEO_B_FRAMES val = %d",
97 			       ctrl->val);
98 		p->num_b_frame = ctrl->val;
99 		break;
100 	case V4L2_CID_MPEG_VIDEO_FRAME_RC_ENABLE:
101 		mtk_v4l2_debug(2, "V4L2_CID_MPEG_VIDEO_FRAME_RC_ENABLE val = %d",
102 			       ctrl->val);
103 		p->rc_frame = ctrl->val;
104 		break;
105 	case V4L2_CID_MPEG_VIDEO_H264_MAX_QP:
106 		mtk_v4l2_debug(2, "V4L2_CID_MPEG_VIDEO_H264_MAX_QP val = %d",
107 			       ctrl->val);
108 		p->h264_max_qp = ctrl->val;
109 		break;
110 	case V4L2_CID_MPEG_VIDEO_HEADER_MODE:
111 		mtk_v4l2_debug(2, "V4L2_CID_MPEG_VIDEO_HEADER_MODE val = %d",
112 			       ctrl->val);
113 		p->seq_hdr_mode = ctrl->val;
114 		break;
115 	case V4L2_CID_MPEG_VIDEO_MB_RC_ENABLE:
116 		mtk_v4l2_debug(2, "V4L2_CID_MPEG_VIDEO_MB_RC_ENABLE val = %d",
117 			       ctrl->val);
118 		p->rc_mb = ctrl->val;
119 		break;
120 	case V4L2_CID_MPEG_VIDEO_H264_PROFILE:
121 		mtk_v4l2_debug(2, "V4L2_CID_MPEG_VIDEO_H264_PROFILE val = %d",
122 			       ctrl->val);
123 		p->h264_profile = ctrl->val;
124 		break;
125 	case V4L2_CID_MPEG_VIDEO_H264_LEVEL:
126 		mtk_v4l2_debug(2, "V4L2_CID_MPEG_VIDEO_H264_LEVEL val = %d",
127 			       ctrl->val);
128 		p->h264_level = ctrl->val;
129 		break;
130 	case V4L2_CID_MPEG_VIDEO_H264_I_PERIOD:
131 		mtk_v4l2_debug(2, "V4L2_CID_MPEG_VIDEO_H264_I_PERIOD val = %d",
132 			       ctrl->val);
133 		p->intra_period = ctrl->val;
134 		ctx->param_change |= MTK_ENCODE_PARAM_INTRA_PERIOD;
135 		break;
136 	case V4L2_CID_MPEG_VIDEO_GOP_SIZE:
137 		mtk_v4l2_debug(2, "V4L2_CID_MPEG_VIDEO_GOP_SIZE val = %d",
138 			       ctrl->val);
139 		p->gop_size = ctrl->val;
140 		ctx->param_change |= MTK_ENCODE_PARAM_GOP_SIZE;
141 		break;
142 	case V4L2_CID_MPEG_VIDEO_FORCE_KEY_FRAME:
143 		mtk_v4l2_debug(2, "V4L2_CID_MPEG_VIDEO_FORCE_KEY_FRAME");
144 		p->force_intra = 1;
145 		ctx->param_change |= MTK_ENCODE_PARAM_FORCE_INTRA;
146 		break;
147 	default:
148 		ret = -EINVAL;
149 		break;
150 	}
151 
152 	return ret;
153 }
154 
155 static const struct v4l2_ctrl_ops mtk_vcodec_enc_ctrl_ops = {
156 	.s_ctrl = vidioc_venc_s_ctrl,
157 };
158 
vidioc_enum_fmt(struct v4l2_fmtdesc * f,bool output_queue)159 static int vidioc_enum_fmt(struct v4l2_fmtdesc *f, bool output_queue)
160 {
161 	const struct mtk_video_fmt *fmt;
162 	int i, j = 0;
163 
164 	for (i = 0; i < NUM_FORMATS; ++i) {
165 		if (output_queue && mtk_video_formats[i].type != MTK_FMT_FRAME)
166 			continue;
167 		if (!output_queue && mtk_video_formats[i].type != MTK_FMT_ENC)
168 			continue;
169 
170 		if (j == f->index) {
171 			fmt = &mtk_video_formats[i];
172 			f->pixelformat = fmt->fourcc;
173 			memset(f->reserved, 0, sizeof(f->reserved));
174 			return 0;
175 		}
176 		++j;
177 	}
178 
179 	return -EINVAL;
180 }
181 
vidioc_enum_framesizes(struct file * file,void * fh,struct v4l2_frmsizeenum * fsize)182 static int vidioc_enum_framesizes(struct file *file, void *fh,
183 				  struct v4l2_frmsizeenum *fsize)
184 {
185 	int i = 0;
186 
187 	if (fsize->index != 0)
188 		return -EINVAL;
189 
190 	for (i = 0; i < NUM_SUPPORTED_FRAMESIZE; ++i) {
191 		if (fsize->pixel_format != mtk_venc_framesizes[i].fourcc)
192 			continue;
193 
194 		fsize->type = V4L2_FRMSIZE_TYPE_STEPWISE;
195 		fsize->stepwise = mtk_venc_framesizes[i].stepwise;
196 		return 0;
197 	}
198 
199 	return -EINVAL;
200 }
201 
vidioc_enum_fmt_vid_cap(struct file * file,void * priv,struct v4l2_fmtdesc * f)202 static int vidioc_enum_fmt_vid_cap(struct file *file, void *priv,
203 				   struct v4l2_fmtdesc *f)
204 {
205 	return vidioc_enum_fmt(f, false);
206 }
207 
vidioc_enum_fmt_vid_out(struct file * file,void * priv,struct v4l2_fmtdesc * f)208 static int vidioc_enum_fmt_vid_out(struct file *file, void *priv,
209 				   struct v4l2_fmtdesc *f)
210 {
211 	return vidioc_enum_fmt(f, true);
212 }
213 
vidioc_venc_querycap(struct file * file,void * priv,struct v4l2_capability * cap)214 static int vidioc_venc_querycap(struct file *file, void *priv,
215 				struct v4l2_capability *cap)
216 {
217 	strscpy(cap->driver, MTK_VCODEC_ENC_NAME, sizeof(cap->driver));
218 	strscpy(cap->bus_info, MTK_PLATFORM_STR, sizeof(cap->bus_info));
219 	strscpy(cap->card, MTK_PLATFORM_STR, sizeof(cap->card));
220 
221 	return 0;
222 }
223 
vidioc_venc_s_parm(struct file * file,void * priv,struct v4l2_streamparm * a)224 static int vidioc_venc_s_parm(struct file *file, void *priv,
225 			      struct v4l2_streamparm *a)
226 {
227 	struct mtk_vcodec_ctx *ctx = fh_to_ctx(priv);
228 
229 	if (a->type != V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE)
230 		return -EINVAL;
231 
232 	ctx->enc_params.framerate_num =
233 			a->parm.output.timeperframe.denominator;
234 	ctx->enc_params.framerate_denom =
235 			a->parm.output.timeperframe.numerator;
236 	ctx->param_change |= MTK_ENCODE_PARAM_FRAMERATE;
237 
238 	a->parm.output.capability = V4L2_CAP_TIMEPERFRAME;
239 
240 	return 0;
241 }
242 
vidioc_venc_g_parm(struct file * file,void * priv,struct v4l2_streamparm * a)243 static int vidioc_venc_g_parm(struct file *file, void *priv,
244 			      struct v4l2_streamparm *a)
245 {
246 	struct mtk_vcodec_ctx *ctx = fh_to_ctx(priv);
247 
248 	if (a->type != V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE)
249 		return -EINVAL;
250 
251 	a->parm.output.capability = V4L2_CAP_TIMEPERFRAME;
252 	a->parm.output.timeperframe.denominator =
253 			ctx->enc_params.framerate_num;
254 	a->parm.output.timeperframe.numerator =
255 			ctx->enc_params.framerate_denom;
256 
257 	return 0;
258 }
259 
mtk_venc_get_q_data(struct mtk_vcodec_ctx * ctx,enum v4l2_buf_type type)260 static struct mtk_q_data *mtk_venc_get_q_data(struct mtk_vcodec_ctx *ctx,
261 					      enum v4l2_buf_type type)
262 {
263 	if (V4L2_TYPE_IS_OUTPUT(type))
264 		return &ctx->q_data[MTK_Q_DATA_SRC];
265 
266 	return &ctx->q_data[MTK_Q_DATA_DST];
267 }
268 
mtk_venc_find_format(struct v4l2_format * f)269 static const struct mtk_video_fmt *mtk_venc_find_format(struct v4l2_format *f)
270 {
271 	const struct mtk_video_fmt *fmt;
272 	unsigned int k;
273 
274 	for (k = 0; k < NUM_FORMATS; k++) {
275 		fmt = &mtk_video_formats[k];
276 		if (fmt->fourcc == f->fmt.pix.pixelformat)
277 			return fmt;
278 	}
279 
280 	return NULL;
281 }
282 
283 /* V4L2 specification suggests the driver corrects the format struct if any of
284  * the dimensions is unsupported
285  */
vidioc_try_fmt(struct v4l2_format * f,const struct mtk_video_fmt * fmt)286 static int vidioc_try_fmt(struct v4l2_format *f,
287 			  const struct mtk_video_fmt *fmt)
288 {
289 	struct v4l2_pix_format_mplane *pix_fmt_mp = &f->fmt.pix_mp;
290 	int i;
291 
292 	pix_fmt_mp->field = V4L2_FIELD_NONE;
293 
294 	if (f->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) {
295 		pix_fmt_mp->num_planes = 1;
296 		pix_fmt_mp->plane_fmt[0].bytesperline = 0;
297 	} else if (f->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) {
298 		int tmp_w, tmp_h;
299 
300 		pix_fmt_mp->height = clamp(pix_fmt_mp->height,
301 					MTK_VENC_MIN_H,
302 					MTK_VENC_MAX_H);
303 		pix_fmt_mp->width = clamp(pix_fmt_mp->width,
304 					MTK_VENC_MIN_W,
305 					MTK_VENC_MAX_W);
306 
307 		/* find next closer width align 16, heign align 32, size align
308 		 * 64 rectangle
309 		 */
310 		tmp_w = pix_fmt_mp->width;
311 		tmp_h = pix_fmt_mp->height;
312 		v4l_bound_align_image(&pix_fmt_mp->width,
313 					MTK_VENC_MIN_W,
314 					MTK_VENC_MAX_W, 4,
315 					&pix_fmt_mp->height,
316 					MTK_VENC_MIN_H,
317 					MTK_VENC_MAX_H, 5, 6);
318 
319 		if (pix_fmt_mp->width < tmp_w &&
320 			(pix_fmt_mp->width + 16) <= MTK_VENC_MAX_W)
321 			pix_fmt_mp->width += 16;
322 		if (pix_fmt_mp->height < tmp_h &&
323 			(pix_fmt_mp->height + 32) <= MTK_VENC_MAX_H)
324 			pix_fmt_mp->height += 32;
325 
326 		mtk_v4l2_debug(0,
327 			"before resize width=%d, height=%d, after resize width=%d, height=%d, sizeimage=%d %d",
328 			tmp_w, tmp_h, pix_fmt_mp->width,
329 			pix_fmt_mp->height,
330 			pix_fmt_mp->plane_fmt[0].sizeimage,
331 			pix_fmt_mp->plane_fmt[1].sizeimage);
332 
333 		pix_fmt_mp->num_planes = fmt->num_planes;
334 		pix_fmt_mp->plane_fmt[0].sizeimage =
335 				pix_fmt_mp->width * pix_fmt_mp->height +
336 				((ALIGN(pix_fmt_mp->width, 16) * 2) * 16);
337 		pix_fmt_mp->plane_fmt[0].bytesperline = pix_fmt_mp->width;
338 
339 		if (pix_fmt_mp->num_planes == 2) {
340 			pix_fmt_mp->plane_fmt[1].sizeimage =
341 				(pix_fmt_mp->width * pix_fmt_mp->height) / 2 +
342 				(ALIGN(pix_fmt_mp->width, 16) * 16);
343 			pix_fmt_mp->plane_fmt[2].sizeimage = 0;
344 			pix_fmt_mp->plane_fmt[1].bytesperline =
345 							pix_fmt_mp->width;
346 			pix_fmt_mp->plane_fmt[2].bytesperline = 0;
347 		} else if (pix_fmt_mp->num_planes == 3) {
348 			pix_fmt_mp->plane_fmt[1].sizeimage =
349 			pix_fmt_mp->plane_fmt[2].sizeimage =
350 				(pix_fmt_mp->width * pix_fmt_mp->height) / 4 +
351 				((ALIGN(pix_fmt_mp->width, 16) / 2) * 16);
352 			pix_fmt_mp->plane_fmt[1].bytesperline =
353 				pix_fmt_mp->plane_fmt[2].bytesperline =
354 				pix_fmt_mp->width / 2;
355 		}
356 	}
357 
358 	for (i = 0; i < pix_fmt_mp->num_planes; i++)
359 		memset(&(pix_fmt_mp->plane_fmt[i].reserved[0]), 0x0,
360 			   sizeof(pix_fmt_mp->plane_fmt[0].reserved));
361 
362 	pix_fmt_mp->flags = 0;
363 	memset(&pix_fmt_mp->reserved, 0x0,
364 		sizeof(pix_fmt_mp->reserved));
365 
366 	return 0;
367 }
368 
mtk_venc_set_param(struct mtk_vcodec_ctx * ctx,struct venc_enc_param * param)369 static void mtk_venc_set_param(struct mtk_vcodec_ctx *ctx,
370 				struct venc_enc_param *param)
371 {
372 	struct mtk_q_data *q_data_src = &ctx->q_data[MTK_Q_DATA_SRC];
373 	struct mtk_enc_params *enc_params = &ctx->enc_params;
374 
375 	switch (q_data_src->fmt->fourcc) {
376 	case V4L2_PIX_FMT_YUV420M:
377 		param->input_yuv_fmt = VENC_YUV_FORMAT_I420;
378 		break;
379 	case V4L2_PIX_FMT_YVU420M:
380 		param->input_yuv_fmt = VENC_YUV_FORMAT_YV12;
381 		break;
382 	case V4L2_PIX_FMT_NV12M:
383 		param->input_yuv_fmt = VENC_YUV_FORMAT_NV12;
384 		break;
385 	case V4L2_PIX_FMT_NV21M:
386 		param->input_yuv_fmt = VENC_YUV_FORMAT_NV21;
387 		break;
388 	default:
389 		mtk_v4l2_err("Unsupported fourcc =%d", q_data_src->fmt->fourcc);
390 		break;
391 	}
392 	param->h264_profile = enc_params->h264_profile;
393 	param->h264_level = enc_params->h264_level;
394 
395 	/* Config visible resolution */
396 	param->width = q_data_src->visible_width;
397 	param->height = q_data_src->visible_height;
398 	/* Config coded resolution */
399 	param->buf_width = q_data_src->coded_width;
400 	param->buf_height = q_data_src->coded_height;
401 	param->frm_rate = enc_params->framerate_num /
402 			enc_params->framerate_denom;
403 	param->intra_period = enc_params->intra_period;
404 	param->gop_size = enc_params->gop_size;
405 	param->bitrate = enc_params->bitrate;
406 
407 	mtk_v4l2_debug(0,
408 		"fmt 0x%x, P/L %d/%d, w/h %d/%d, buf %d/%d, fps/bps %d/%d, gop %d, i_period %d",
409 		param->input_yuv_fmt, param->h264_profile,
410 		param->h264_level, param->width, param->height,
411 		param->buf_width, param->buf_height,
412 		param->frm_rate, param->bitrate,
413 		param->gop_size, param->intra_period);
414 }
415 
vidioc_venc_s_fmt_cap(struct file * file,void * priv,struct v4l2_format * f)416 static int vidioc_venc_s_fmt_cap(struct file *file, void *priv,
417 			     struct v4l2_format *f)
418 {
419 	struct mtk_vcodec_ctx *ctx = fh_to_ctx(priv);
420 	struct vb2_queue *vq;
421 	struct mtk_q_data *q_data;
422 	int i, ret;
423 	const struct mtk_video_fmt *fmt;
424 
425 	vq = v4l2_m2m_get_vq(ctx->m2m_ctx, f->type);
426 	if (!vq) {
427 		mtk_v4l2_err("fail to get vq");
428 		return -EINVAL;
429 	}
430 
431 	if (vb2_is_busy(vq)) {
432 		mtk_v4l2_err("queue busy");
433 		return -EBUSY;
434 	}
435 
436 	q_data = mtk_venc_get_q_data(ctx, f->type);
437 	if (!q_data) {
438 		mtk_v4l2_err("fail to get q data");
439 		return -EINVAL;
440 	}
441 
442 	fmt = mtk_venc_find_format(f);
443 	if (!fmt) {
444 		f->fmt.pix.pixelformat = mtk_video_formats[CAP_FMT_IDX].fourcc;
445 		fmt = mtk_venc_find_format(f);
446 	}
447 
448 	q_data->fmt = fmt;
449 	ret = vidioc_try_fmt(f, q_data->fmt);
450 	if (ret)
451 		return ret;
452 
453 	q_data->coded_width = f->fmt.pix_mp.width;
454 	q_data->coded_height = f->fmt.pix_mp.height;
455 	q_data->field = f->fmt.pix_mp.field;
456 
457 	for (i = 0; i < f->fmt.pix_mp.num_planes; i++) {
458 		struct v4l2_plane_pix_format	*plane_fmt;
459 
460 		plane_fmt = &f->fmt.pix_mp.plane_fmt[i];
461 		q_data->bytesperline[i]	= plane_fmt->bytesperline;
462 		q_data->sizeimage[i] = plane_fmt->sizeimage;
463 	}
464 
465 	if (ctx->state == MTK_STATE_FREE) {
466 		ret = venc_if_init(ctx, q_data->fmt->fourcc);
467 		if (ret) {
468 			mtk_v4l2_err("venc_if_init failed=%d, codec type=%x",
469 					ret, q_data->fmt->fourcc);
470 			return -EBUSY;
471 		}
472 		ctx->state = MTK_STATE_INIT;
473 	}
474 
475 	return 0;
476 }
477 
vidioc_venc_s_fmt_out(struct file * file,void * priv,struct v4l2_format * f)478 static int vidioc_venc_s_fmt_out(struct file *file, void *priv,
479 			     struct v4l2_format *f)
480 {
481 	struct mtk_vcodec_ctx *ctx = fh_to_ctx(priv);
482 	struct vb2_queue *vq;
483 	struct mtk_q_data *q_data;
484 	int ret, i;
485 	const struct mtk_video_fmt *fmt;
486 	struct v4l2_pix_format_mplane *pix_fmt_mp = &f->fmt.pix_mp;
487 
488 	vq = v4l2_m2m_get_vq(ctx->m2m_ctx, f->type);
489 	if (!vq) {
490 		mtk_v4l2_err("fail to get vq");
491 		return -EINVAL;
492 	}
493 
494 	if (vb2_is_busy(vq)) {
495 		mtk_v4l2_err("queue busy");
496 		return -EBUSY;
497 	}
498 
499 	q_data = mtk_venc_get_q_data(ctx, f->type);
500 	if (!q_data) {
501 		mtk_v4l2_err("fail to get q data");
502 		return -EINVAL;
503 	}
504 
505 	fmt = mtk_venc_find_format(f);
506 	if (!fmt) {
507 		f->fmt.pix.pixelformat = mtk_video_formats[OUT_FMT_IDX].fourcc;
508 		fmt = mtk_venc_find_format(f);
509 	}
510 
511 	pix_fmt_mp->height = clamp(pix_fmt_mp->height,
512 				MTK_VENC_MIN_H,
513 				MTK_VENC_MAX_H);
514 	pix_fmt_mp->width = clamp(pix_fmt_mp->width,
515 				MTK_VENC_MIN_W,
516 				MTK_VENC_MAX_W);
517 
518 	q_data->visible_width = f->fmt.pix_mp.width;
519 	q_data->visible_height = f->fmt.pix_mp.height;
520 	q_data->fmt = fmt;
521 	ret = vidioc_try_fmt(f, q_data->fmt);
522 	if (ret)
523 		return ret;
524 
525 	q_data->coded_width = f->fmt.pix_mp.width;
526 	q_data->coded_height = f->fmt.pix_mp.height;
527 
528 	q_data->field = f->fmt.pix_mp.field;
529 	ctx->colorspace = f->fmt.pix_mp.colorspace;
530 	ctx->ycbcr_enc = f->fmt.pix_mp.ycbcr_enc;
531 	ctx->quantization = f->fmt.pix_mp.quantization;
532 	ctx->xfer_func = f->fmt.pix_mp.xfer_func;
533 
534 	for (i = 0; i < f->fmt.pix_mp.num_planes; i++) {
535 		struct v4l2_plane_pix_format *plane_fmt;
536 
537 		plane_fmt = &f->fmt.pix_mp.plane_fmt[i];
538 		q_data->bytesperline[i] = plane_fmt->bytesperline;
539 		q_data->sizeimage[i] = plane_fmt->sizeimage;
540 	}
541 
542 	return 0;
543 }
544 
vidioc_venc_g_fmt(struct file * file,void * priv,struct v4l2_format * f)545 static int vidioc_venc_g_fmt(struct file *file, void *priv,
546 			     struct v4l2_format *f)
547 {
548 	struct v4l2_pix_format_mplane *pix = &f->fmt.pix_mp;
549 	struct mtk_vcodec_ctx *ctx = fh_to_ctx(priv);
550 	struct vb2_queue *vq;
551 	struct mtk_q_data *q_data;
552 	int i;
553 
554 	vq = v4l2_m2m_get_vq(ctx->m2m_ctx, f->type);
555 	if (!vq)
556 		return -EINVAL;
557 
558 	q_data = mtk_venc_get_q_data(ctx, f->type);
559 
560 	pix->width = q_data->coded_width;
561 	pix->height = q_data->coded_height;
562 	pix->pixelformat = q_data->fmt->fourcc;
563 	pix->field = q_data->field;
564 	pix->num_planes = q_data->fmt->num_planes;
565 	for (i = 0; i < pix->num_planes; i++) {
566 		pix->plane_fmt[i].bytesperline = q_data->bytesperline[i];
567 		pix->plane_fmt[i].sizeimage = q_data->sizeimage[i];
568 		memset(&(pix->plane_fmt[i].reserved[0]), 0x0,
569 		       sizeof(pix->plane_fmt[i].reserved));
570 	}
571 
572 	pix->flags = 0;
573 	pix->colorspace = ctx->colorspace;
574 	pix->ycbcr_enc = ctx->ycbcr_enc;
575 	pix->quantization = ctx->quantization;
576 	pix->xfer_func = ctx->xfer_func;
577 
578 	return 0;
579 }
580 
vidioc_try_fmt_vid_cap_mplane(struct file * file,void * priv,struct v4l2_format * f)581 static int vidioc_try_fmt_vid_cap_mplane(struct file *file, void *priv,
582 					 struct v4l2_format *f)
583 {
584 	const struct mtk_video_fmt *fmt;
585 	struct mtk_vcodec_ctx *ctx = fh_to_ctx(priv);
586 
587 	fmt = mtk_venc_find_format(f);
588 	if (!fmt) {
589 		f->fmt.pix.pixelformat = mtk_video_formats[CAP_FMT_IDX].fourcc;
590 		fmt = mtk_venc_find_format(f);
591 	}
592 	f->fmt.pix_mp.colorspace = ctx->colorspace;
593 	f->fmt.pix_mp.ycbcr_enc = ctx->ycbcr_enc;
594 	f->fmt.pix_mp.quantization = ctx->quantization;
595 	f->fmt.pix_mp.xfer_func = ctx->xfer_func;
596 
597 	return vidioc_try_fmt(f, fmt);
598 }
599 
vidioc_try_fmt_vid_out_mplane(struct file * file,void * priv,struct v4l2_format * f)600 static int vidioc_try_fmt_vid_out_mplane(struct file *file, void *priv,
601 					 struct v4l2_format *f)
602 {
603 	const struct mtk_video_fmt *fmt;
604 
605 	fmt = mtk_venc_find_format(f);
606 	if (!fmt) {
607 		f->fmt.pix.pixelformat = mtk_video_formats[OUT_FMT_IDX].fourcc;
608 		fmt = mtk_venc_find_format(f);
609 	}
610 	if (!f->fmt.pix_mp.colorspace) {
611 		f->fmt.pix_mp.colorspace = V4L2_COLORSPACE_REC709;
612 		f->fmt.pix_mp.ycbcr_enc = V4L2_YCBCR_ENC_DEFAULT;
613 		f->fmt.pix_mp.quantization = V4L2_QUANTIZATION_DEFAULT;
614 		f->fmt.pix_mp.xfer_func = V4L2_XFER_FUNC_DEFAULT;
615 	}
616 
617 	return vidioc_try_fmt(f, fmt);
618 }
619 
vidioc_venc_g_selection(struct file * file,void * priv,struct v4l2_selection * s)620 static int vidioc_venc_g_selection(struct file *file, void *priv,
621 				     struct v4l2_selection *s)
622 {
623 	struct mtk_vcodec_ctx *ctx = fh_to_ctx(priv);
624 	struct mtk_q_data *q_data;
625 
626 	if (s->type != V4L2_BUF_TYPE_VIDEO_OUTPUT)
627 		return -EINVAL;
628 
629 	q_data = mtk_venc_get_q_data(ctx, s->type);
630 	if (!q_data)
631 		return -EINVAL;
632 
633 	switch (s->target) {
634 	case V4L2_SEL_TGT_CROP_DEFAULT:
635 	case V4L2_SEL_TGT_CROP_BOUNDS:
636 		s->r.top = 0;
637 		s->r.left = 0;
638 		s->r.width = q_data->coded_width;
639 		s->r.height = q_data->coded_height;
640 		break;
641 	case V4L2_SEL_TGT_CROP:
642 		s->r.top = 0;
643 		s->r.left = 0;
644 		s->r.width = q_data->visible_width;
645 		s->r.height = q_data->visible_height;
646 		break;
647 	default:
648 		return -EINVAL;
649 	}
650 
651 	return 0;
652 }
653 
vidioc_venc_s_selection(struct file * file,void * priv,struct v4l2_selection * s)654 static int vidioc_venc_s_selection(struct file *file, void *priv,
655 				     struct v4l2_selection *s)
656 {
657 	struct mtk_vcodec_ctx *ctx = fh_to_ctx(priv);
658 	struct mtk_q_data *q_data;
659 
660 	if (s->type != V4L2_BUF_TYPE_VIDEO_OUTPUT)
661 		return -EINVAL;
662 
663 	q_data = mtk_venc_get_q_data(ctx, s->type);
664 	if (!q_data)
665 		return -EINVAL;
666 
667 	switch (s->target) {
668 	case V4L2_SEL_TGT_CROP:
669 		/* Only support crop from (0,0) */
670 		s->r.top = 0;
671 		s->r.left = 0;
672 		s->r.width = min(s->r.width, q_data->coded_width);
673 		s->r.height = min(s->r.height, q_data->coded_height);
674 		q_data->visible_width = s->r.width;
675 		q_data->visible_height = s->r.height;
676 		break;
677 	default:
678 		return -EINVAL;
679 	}
680 	return 0;
681 }
682 
vidioc_venc_qbuf(struct file * file,void * priv,struct v4l2_buffer * buf)683 static int vidioc_venc_qbuf(struct file *file, void *priv,
684 			    struct v4l2_buffer *buf)
685 {
686 	struct mtk_vcodec_ctx *ctx = fh_to_ctx(priv);
687 
688 	if (ctx->state == MTK_STATE_ABORT) {
689 		mtk_v4l2_err("[%d] Call on QBUF after unrecoverable error",
690 				ctx->id);
691 		return -EIO;
692 	}
693 
694 	return v4l2_m2m_qbuf(file, ctx->m2m_ctx, buf);
695 }
696 
vidioc_venc_dqbuf(struct file * file,void * priv,struct v4l2_buffer * buf)697 static int vidioc_venc_dqbuf(struct file *file, void *priv,
698 			     struct v4l2_buffer *buf)
699 {
700 	struct mtk_vcodec_ctx *ctx = fh_to_ctx(priv);
701 
702 	if (ctx->state == MTK_STATE_ABORT) {
703 		mtk_v4l2_err("[%d] Call on QBUF after unrecoverable error",
704 				ctx->id);
705 		return -EIO;
706 	}
707 
708 	return v4l2_m2m_dqbuf(file, ctx->m2m_ctx, buf);
709 }
710 
711 const struct v4l2_ioctl_ops mtk_venc_ioctl_ops = {
712 	.vidioc_streamon		= v4l2_m2m_ioctl_streamon,
713 	.vidioc_streamoff		= v4l2_m2m_ioctl_streamoff,
714 
715 	.vidioc_reqbufs			= v4l2_m2m_ioctl_reqbufs,
716 	.vidioc_querybuf		= v4l2_m2m_ioctl_querybuf,
717 	.vidioc_qbuf			= vidioc_venc_qbuf,
718 	.vidioc_dqbuf			= vidioc_venc_dqbuf,
719 
720 	.vidioc_querycap		= vidioc_venc_querycap,
721 	.vidioc_enum_fmt_vid_cap	= vidioc_enum_fmt_vid_cap,
722 	.vidioc_enum_fmt_vid_out	= vidioc_enum_fmt_vid_out,
723 	.vidioc_enum_framesizes		= vidioc_enum_framesizes,
724 
725 	.vidioc_try_fmt_vid_cap_mplane	= vidioc_try_fmt_vid_cap_mplane,
726 	.vidioc_try_fmt_vid_out_mplane	= vidioc_try_fmt_vid_out_mplane,
727 	.vidioc_expbuf			= v4l2_m2m_ioctl_expbuf,
728 	.vidioc_subscribe_event		= v4l2_ctrl_subscribe_event,
729 	.vidioc_unsubscribe_event	= v4l2_event_unsubscribe,
730 
731 	.vidioc_s_parm			= vidioc_venc_s_parm,
732 	.vidioc_g_parm			= vidioc_venc_g_parm,
733 	.vidioc_s_fmt_vid_cap_mplane	= vidioc_venc_s_fmt_cap,
734 	.vidioc_s_fmt_vid_out_mplane	= vidioc_venc_s_fmt_out,
735 
736 	.vidioc_g_fmt_vid_cap_mplane	= vidioc_venc_g_fmt,
737 	.vidioc_g_fmt_vid_out_mplane	= vidioc_venc_g_fmt,
738 
739 	.vidioc_create_bufs		= v4l2_m2m_ioctl_create_bufs,
740 	.vidioc_prepare_buf		= v4l2_m2m_ioctl_prepare_buf,
741 
742 	.vidioc_g_selection		= vidioc_venc_g_selection,
743 	.vidioc_s_selection		= vidioc_venc_s_selection,
744 };
745 
vb2ops_venc_queue_setup(struct vb2_queue * vq,unsigned int * nbuffers,unsigned int * nplanes,unsigned int sizes[],struct device * alloc_devs[])746 static int vb2ops_venc_queue_setup(struct vb2_queue *vq,
747 				   unsigned int *nbuffers,
748 				   unsigned int *nplanes,
749 				   unsigned int sizes[],
750 				   struct device *alloc_devs[])
751 {
752 	struct mtk_vcodec_ctx *ctx = vb2_get_drv_priv(vq);
753 	struct mtk_q_data *q_data;
754 	unsigned int i;
755 
756 	q_data = mtk_venc_get_q_data(ctx, vq->type);
757 
758 	if (q_data == NULL)
759 		return -EINVAL;
760 
761 	if (*nplanes) {
762 		for (i = 0; i < *nplanes; i++)
763 			if (sizes[i] < q_data->sizeimage[i])
764 				return -EINVAL;
765 	} else {
766 		*nplanes = q_data->fmt->num_planes;
767 		for (i = 0; i < *nplanes; i++)
768 			sizes[i] = q_data->sizeimage[i];
769 	}
770 
771 	return 0;
772 }
773 
vb2ops_venc_buf_prepare(struct vb2_buffer * vb)774 static int vb2ops_venc_buf_prepare(struct vb2_buffer *vb)
775 {
776 	struct mtk_vcodec_ctx *ctx = vb2_get_drv_priv(vb->vb2_queue);
777 	struct mtk_q_data *q_data;
778 	int i;
779 
780 	q_data = mtk_venc_get_q_data(ctx, vb->vb2_queue->type);
781 
782 	for (i = 0; i < q_data->fmt->num_planes; i++) {
783 		if (vb2_plane_size(vb, i) < q_data->sizeimage[i]) {
784 			mtk_v4l2_err("data will not fit into plane %d (%lu < %d)",
785 				i, vb2_plane_size(vb, i),
786 				q_data->sizeimage[i]);
787 			return -EINVAL;
788 		}
789 	}
790 
791 	return 0;
792 }
793 
vb2ops_venc_buf_queue(struct vb2_buffer * vb)794 static void vb2ops_venc_buf_queue(struct vb2_buffer *vb)
795 {
796 	struct mtk_vcodec_ctx *ctx = vb2_get_drv_priv(vb->vb2_queue);
797 	struct vb2_v4l2_buffer *vb2_v4l2 =
798 			container_of(vb, struct vb2_v4l2_buffer, vb2_buf);
799 
800 	struct mtk_video_enc_buf *mtk_buf =
801 			container_of(vb2_v4l2, struct mtk_video_enc_buf, vb);
802 
803 	if ((vb->vb2_queue->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) &&
804 	    (ctx->param_change != MTK_ENCODE_PARAM_NONE)) {
805 		mtk_v4l2_debug(1, "[%d] Before id=%d encode parameter change %x",
806 			       ctx->id,
807 			       mtk_buf->vb.vb2_buf.index,
808 			       ctx->param_change);
809 		mtk_buf->param_change = ctx->param_change;
810 		mtk_buf->enc_params = ctx->enc_params;
811 		ctx->param_change = MTK_ENCODE_PARAM_NONE;
812 	}
813 
814 	v4l2_m2m_buf_queue(ctx->m2m_ctx, to_vb2_v4l2_buffer(vb));
815 }
816 
vb2ops_venc_start_streaming(struct vb2_queue * q,unsigned int count)817 static int vb2ops_venc_start_streaming(struct vb2_queue *q, unsigned int count)
818 {
819 	struct mtk_vcodec_ctx *ctx = vb2_get_drv_priv(q);
820 	struct venc_enc_param param;
821 	int ret;
822 	int i;
823 
824 	/* Once state turn into MTK_STATE_ABORT, we need stop_streaming
825 	  * to clear it
826 	  */
827 	if ((ctx->state == MTK_STATE_ABORT) || (ctx->state == MTK_STATE_FREE)) {
828 		ret = -EIO;
829 		goto err_set_param;
830 	}
831 
832 	/* Do the initialization when both start_streaming have been called */
833 	if (V4L2_TYPE_IS_OUTPUT(q->type)) {
834 		if (!vb2_start_streaming_called(&ctx->m2m_ctx->cap_q_ctx.q))
835 			return 0;
836 	} else {
837 		if (!vb2_start_streaming_called(&ctx->m2m_ctx->out_q_ctx.q))
838 			return 0;
839 	}
840 
841 	mtk_venc_set_param(ctx, &param);
842 	ret = venc_if_set_param(ctx, VENC_SET_PARAM_ENC, &param);
843 	if (ret) {
844 		mtk_v4l2_err("venc_if_set_param failed=%d", ret);
845 		ctx->state = MTK_STATE_ABORT;
846 		goto err_set_param;
847 	}
848 	ctx->param_change = MTK_ENCODE_PARAM_NONE;
849 
850 	if ((ctx->q_data[MTK_Q_DATA_DST].fmt->fourcc == V4L2_PIX_FMT_H264) &&
851 	    (ctx->enc_params.seq_hdr_mode !=
852 				V4L2_MPEG_VIDEO_HEADER_MODE_SEPARATE)) {
853 		ret = venc_if_set_param(ctx,
854 					VENC_SET_PARAM_PREPEND_HEADER,
855 					NULL);
856 		if (ret) {
857 			mtk_v4l2_err("venc_if_set_param failed=%d", ret);
858 			ctx->state = MTK_STATE_ABORT;
859 			goto err_set_param;
860 		}
861 		ctx->state = MTK_STATE_HEADER;
862 	}
863 
864 	return 0;
865 
866 err_set_param:
867 	for (i = 0; i < q->num_buffers; ++i) {
868 		struct vb2_buffer *buf = vb2_get_buffer(q, i);
869 
870 		/*
871 		 * FIXME: This check is not needed as only active buffers
872 		 * can be marked as done.
873 		 */
874 		if (buf->state == VB2_BUF_STATE_ACTIVE) {
875 			mtk_v4l2_debug(0, "[%d] id=%d, type=%d, %d -> VB2_BUF_STATE_QUEUED",
876 					ctx->id, i, q->type,
877 					(int)buf->state);
878 			v4l2_m2m_buf_done(to_vb2_v4l2_buffer(buf),
879 					  VB2_BUF_STATE_QUEUED);
880 		}
881 	}
882 
883 	return ret;
884 }
885 
vb2ops_venc_stop_streaming(struct vb2_queue * q)886 static void vb2ops_venc_stop_streaming(struct vb2_queue *q)
887 {
888 	struct mtk_vcodec_ctx *ctx = vb2_get_drv_priv(q);
889 	struct vb2_v4l2_buffer *src_buf, *dst_buf;
890 	int ret;
891 
892 	mtk_v4l2_debug(2, "[%d]-> type=%d", ctx->id, q->type);
893 
894 	if (q->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) {
895 		while ((dst_buf = v4l2_m2m_dst_buf_remove(ctx->m2m_ctx))) {
896 			dst_buf->vb2_buf.planes[0].bytesused = 0;
897 			v4l2_m2m_buf_done(dst_buf, VB2_BUF_STATE_ERROR);
898 		}
899 	} else {
900 		while ((src_buf = v4l2_m2m_src_buf_remove(ctx->m2m_ctx)))
901 			v4l2_m2m_buf_done(src_buf, VB2_BUF_STATE_ERROR);
902 	}
903 
904 	if ((q->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE &&
905 	     vb2_is_streaming(&ctx->m2m_ctx->out_q_ctx.q)) ||
906 	    (q->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE &&
907 	     vb2_is_streaming(&ctx->m2m_ctx->cap_q_ctx.q))) {
908 		mtk_v4l2_debug(1, "[%d]-> q type %d out=%d cap=%d",
909 			       ctx->id, q->type,
910 			       vb2_is_streaming(&ctx->m2m_ctx->out_q_ctx.q),
911 			       vb2_is_streaming(&ctx->m2m_ctx->cap_q_ctx.q));
912 		return;
913 	}
914 
915 	/* Release the encoder if both streams are stopped. */
916 	ret = venc_if_deinit(ctx);
917 	if (ret)
918 		mtk_v4l2_err("venc_if_deinit failed=%d", ret);
919 
920 	ctx->state = MTK_STATE_FREE;
921 }
922 
923 static const struct vb2_ops mtk_venc_vb2_ops = {
924 	.queue_setup		= vb2ops_venc_queue_setup,
925 	.buf_prepare		= vb2ops_venc_buf_prepare,
926 	.buf_queue		= vb2ops_venc_buf_queue,
927 	.wait_prepare		= vb2_ops_wait_prepare,
928 	.wait_finish		= vb2_ops_wait_finish,
929 	.start_streaming	= vb2ops_venc_start_streaming,
930 	.stop_streaming		= vb2ops_venc_stop_streaming,
931 };
932 
mtk_venc_encode_header(void * priv)933 static int mtk_venc_encode_header(void *priv)
934 {
935 	struct mtk_vcodec_ctx *ctx = priv;
936 	int ret;
937 	struct vb2_v4l2_buffer *src_buf, *dst_buf;
938 	struct mtk_vcodec_mem bs_buf;
939 	struct venc_done_result enc_result;
940 
941 	dst_buf = v4l2_m2m_dst_buf_remove(ctx->m2m_ctx);
942 	if (!dst_buf) {
943 		mtk_v4l2_debug(1, "No dst buffer");
944 		return -EINVAL;
945 	}
946 
947 	bs_buf.va = vb2_plane_vaddr(&dst_buf->vb2_buf, 0);
948 	bs_buf.dma_addr = vb2_dma_contig_plane_dma_addr(&dst_buf->vb2_buf, 0);
949 	bs_buf.size = (size_t)dst_buf->vb2_buf.planes[0].length;
950 
951 	mtk_v4l2_debug(1,
952 			"[%d] buf id=%d va=0x%p dma_addr=0x%llx size=%zu",
953 			ctx->id,
954 			dst_buf->vb2_buf.index, bs_buf.va,
955 			(u64)bs_buf.dma_addr,
956 			bs_buf.size);
957 
958 	ret = venc_if_encode(ctx,
959 			VENC_START_OPT_ENCODE_SEQUENCE_HEADER,
960 			NULL, &bs_buf, &enc_result);
961 
962 	if (ret) {
963 		dst_buf->vb2_buf.planes[0].bytesused = 0;
964 		ctx->state = MTK_STATE_ABORT;
965 		v4l2_m2m_buf_done(dst_buf, VB2_BUF_STATE_ERROR);
966 		mtk_v4l2_err("venc_if_encode failed=%d", ret);
967 		return -EINVAL;
968 	}
969 	src_buf = v4l2_m2m_next_src_buf(ctx->m2m_ctx);
970 	if (src_buf) {
971 		dst_buf->vb2_buf.timestamp = src_buf->vb2_buf.timestamp;
972 		dst_buf->timecode = src_buf->timecode;
973 	} else {
974 		mtk_v4l2_err("No timestamp for the header buffer.");
975 	}
976 
977 	ctx->state = MTK_STATE_HEADER;
978 	dst_buf->vb2_buf.planes[0].bytesused = enc_result.bs_size;
979 	v4l2_m2m_buf_done(dst_buf, VB2_BUF_STATE_DONE);
980 
981 	return 0;
982 }
983 
mtk_venc_param_change(struct mtk_vcodec_ctx * ctx)984 static int mtk_venc_param_change(struct mtk_vcodec_ctx *ctx)
985 {
986 	struct venc_enc_param enc_prm;
987 	struct vb2_v4l2_buffer *vb2_v4l2 = v4l2_m2m_next_src_buf(ctx->m2m_ctx);
988 	struct mtk_video_enc_buf *mtk_buf =
989 			container_of(vb2_v4l2, struct mtk_video_enc_buf, vb);
990 
991 	int ret = 0;
992 
993 	memset(&enc_prm, 0, sizeof(enc_prm));
994 	if (mtk_buf->param_change == MTK_ENCODE_PARAM_NONE)
995 		return 0;
996 
997 	if (mtk_buf->param_change & MTK_ENCODE_PARAM_BITRATE) {
998 		enc_prm.bitrate = mtk_buf->enc_params.bitrate;
999 		mtk_v4l2_debug(1, "[%d] id=%d, change param br=%d",
1000 				ctx->id,
1001 				mtk_buf->vb.vb2_buf.index,
1002 				enc_prm.bitrate);
1003 		ret |= venc_if_set_param(ctx,
1004 					 VENC_SET_PARAM_ADJUST_BITRATE,
1005 					 &enc_prm);
1006 	}
1007 	if (!ret && mtk_buf->param_change & MTK_ENCODE_PARAM_FRAMERATE) {
1008 		enc_prm.frm_rate = mtk_buf->enc_params.framerate_num /
1009 				   mtk_buf->enc_params.framerate_denom;
1010 		mtk_v4l2_debug(1, "[%d] id=%d, change param fr=%d",
1011 			       ctx->id,
1012 			       mtk_buf->vb.vb2_buf.index,
1013 			       enc_prm.frm_rate);
1014 		ret |= venc_if_set_param(ctx,
1015 					 VENC_SET_PARAM_ADJUST_FRAMERATE,
1016 					 &enc_prm);
1017 	}
1018 	if (!ret && mtk_buf->param_change & MTK_ENCODE_PARAM_GOP_SIZE) {
1019 		enc_prm.gop_size = mtk_buf->enc_params.gop_size;
1020 		mtk_v4l2_debug(1, "change param intra period=%d",
1021 			       enc_prm.gop_size);
1022 		ret |= venc_if_set_param(ctx,
1023 					 VENC_SET_PARAM_GOP_SIZE,
1024 					 &enc_prm);
1025 	}
1026 	if (!ret && mtk_buf->param_change & MTK_ENCODE_PARAM_FORCE_INTRA) {
1027 		mtk_v4l2_debug(1, "[%d] id=%d, change param force I=%d",
1028 				ctx->id,
1029 				mtk_buf->vb.vb2_buf.index,
1030 				mtk_buf->enc_params.force_intra);
1031 		if (mtk_buf->enc_params.force_intra)
1032 			ret |= venc_if_set_param(ctx,
1033 						 VENC_SET_PARAM_FORCE_INTRA,
1034 						 NULL);
1035 	}
1036 
1037 	mtk_buf->param_change = MTK_ENCODE_PARAM_NONE;
1038 
1039 	if (ret) {
1040 		ctx->state = MTK_STATE_ABORT;
1041 		mtk_v4l2_err("venc_if_set_param %d failed=%d",
1042 				mtk_buf->param_change, ret);
1043 		return -1;
1044 	}
1045 
1046 	return 0;
1047 }
1048 
1049 /*
1050  * v4l2_m2m_streamoff() holds dev_mutex and waits mtk_venc_worker()
1051  * to call v4l2_m2m_job_finish().
1052  * If mtk_venc_worker() tries to acquire dev_mutex, it will deadlock.
1053  * So this function must not try to acquire dev->dev_mutex.
1054  * This means v4l2 ioctls and mtk_venc_worker() can run at the same time.
1055  * mtk_venc_worker() should be carefully implemented to avoid bugs.
1056  */
mtk_venc_worker(struct work_struct * work)1057 static void mtk_venc_worker(struct work_struct *work)
1058 {
1059 	struct mtk_vcodec_ctx *ctx = container_of(work, struct mtk_vcodec_ctx,
1060 				    encode_work);
1061 	struct vb2_v4l2_buffer *src_buf, *dst_buf;
1062 	struct venc_frm_buf frm_buf;
1063 	struct mtk_vcodec_mem bs_buf;
1064 	struct venc_done_result enc_result;
1065 	int ret, i;
1066 
1067 	/* check dst_buf, dst_buf may be removed in device_run
1068 	 * to stored encdoe header so we need check dst_buf and
1069 	 * call job_finish here to prevent recursion
1070 	 */
1071 	dst_buf = v4l2_m2m_dst_buf_remove(ctx->m2m_ctx);
1072 	if (!dst_buf) {
1073 		v4l2_m2m_job_finish(ctx->dev->m2m_dev_enc, ctx->m2m_ctx);
1074 		return;
1075 	}
1076 
1077 	src_buf = v4l2_m2m_src_buf_remove(ctx->m2m_ctx);
1078 	memset(&frm_buf, 0, sizeof(frm_buf));
1079 	for (i = 0; i < src_buf->vb2_buf.num_planes ; i++) {
1080 		frm_buf.fb_addr[i].dma_addr =
1081 				vb2_dma_contig_plane_dma_addr(&src_buf->vb2_buf, i);
1082 		frm_buf.fb_addr[i].size =
1083 				(size_t)src_buf->vb2_buf.planes[i].length;
1084 	}
1085 	bs_buf.va = vb2_plane_vaddr(&dst_buf->vb2_buf, 0);
1086 	bs_buf.dma_addr = vb2_dma_contig_plane_dma_addr(&dst_buf->vb2_buf, 0);
1087 	bs_buf.size = (size_t)dst_buf->vb2_buf.planes[0].length;
1088 
1089 	mtk_v4l2_debug(2,
1090 			"Framebuf PA=%llx Size=0x%zx;PA=0x%llx Size=0x%zx;PA=0x%llx Size=%zu",
1091 			(u64)frm_buf.fb_addr[0].dma_addr,
1092 			frm_buf.fb_addr[0].size,
1093 			(u64)frm_buf.fb_addr[1].dma_addr,
1094 			frm_buf.fb_addr[1].size,
1095 			(u64)frm_buf.fb_addr[2].dma_addr,
1096 			frm_buf.fb_addr[2].size);
1097 
1098 	ret = venc_if_encode(ctx, VENC_START_OPT_ENCODE_FRAME,
1099 			     &frm_buf, &bs_buf, &enc_result);
1100 
1101 	dst_buf->vb2_buf.timestamp = src_buf->vb2_buf.timestamp;
1102 	dst_buf->timecode = src_buf->timecode;
1103 
1104 	if (enc_result.is_key_frm)
1105 		dst_buf->flags |= V4L2_BUF_FLAG_KEYFRAME;
1106 
1107 	if (ret) {
1108 		v4l2_m2m_buf_done(src_buf, VB2_BUF_STATE_ERROR);
1109 		dst_buf->vb2_buf.planes[0].bytesused = 0;
1110 		v4l2_m2m_buf_done(dst_buf, VB2_BUF_STATE_ERROR);
1111 		mtk_v4l2_err("venc_if_encode failed=%d", ret);
1112 	} else {
1113 		v4l2_m2m_buf_done(src_buf, VB2_BUF_STATE_DONE);
1114 		dst_buf->vb2_buf.planes[0].bytesused = enc_result.bs_size;
1115 		v4l2_m2m_buf_done(dst_buf, VB2_BUF_STATE_DONE);
1116 		mtk_v4l2_debug(2, "venc_if_encode bs size=%d",
1117 				 enc_result.bs_size);
1118 	}
1119 
1120 	v4l2_m2m_job_finish(ctx->dev->m2m_dev_enc, ctx->m2m_ctx);
1121 
1122 	mtk_v4l2_debug(1, "<=== src_buf[%d] dst_buf[%d] venc_if_encode ret=%d Size=%u===>",
1123 			src_buf->vb2_buf.index, dst_buf->vb2_buf.index, ret,
1124 			enc_result.bs_size);
1125 }
1126 
m2mops_venc_device_run(void * priv)1127 static void m2mops_venc_device_run(void *priv)
1128 {
1129 	struct mtk_vcodec_ctx *ctx = priv;
1130 
1131 	if ((ctx->q_data[MTK_Q_DATA_DST].fmt->fourcc == V4L2_PIX_FMT_H264) &&
1132 	    (ctx->state != MTK_STATE_HEADER)) {
1133 		/* encode h264 sps/pps header */
1134 		mtk_venc_encode_header(ctx);
1135 		queue_work(ctx->dev->encode_workqueue, &ctx->encode_work);
1136 		return;
1137 	}
1138 
1139 	mtk_venc_param_change(ctx);
1140 	queue_work(ctx->dev->encode_workqueue, &ctx->encode_work);
1141 }
1142 
m2mops_venc_job_ready(void * m2m_priv)1143 static int m2mops_venc_job_ready(void *m2m_priv)
1144 {
1145 	struct mtk_vcodec_ctx *ctx = m2m_priv;
1146 
1147 	if (ctx->state == MTK_STATE_ABORT || ctx->state == MTK_STATE_FREE) {
1148 		mtk_v4l2_debug(3, "[%d]Not ready: state=0x%x.",
1149 			       ctx->id, ctx->state);
1150 		return 0;
1151 	}
1152 
1153 	return 1;
1154 }
1155 
m2mops_venc_job_abort(void * priv)1156 static void m2mops_venc_job_abort(void *priv)
1157 {
1158 	struct mtk_vcodec_ctx *ctx = priv;
1159 
1160 	ctx->state = MTK_STATE_ABORT;
1161 }
1162 
1163 const struct v4l2_m2m_ops mtk_venc_m2m_ops = {
1164 	.device_run	= m2mops_venc_device_run,
1165 	.job_ready	= m2mops_venc_job_ready,
1166 	.job_abort	= m2mops_venc_job_abort,
1167 };
1168 
mtk_vcodec_enc_set_default_params(struct mtk_vcodec_ctx * ctx)1169 void mtk_vcodec_enc_set_default_params(struct mtk_vcodec_ctx *ctx)
1170 {
1171 	struct mtk_q_data *q_data;
1172 
1173 	ctx->m2m_ctx->q_lock = &ctx->dev->dev_mutex;
1174 	ctx->fh.m2m_ctx = ctx->m2m_ctx;
1175 	ctx->fh.ctrl_handler = &ctx->ctrl_hdl;
1176 	INIT_WORK(&ctx->encode_work, mtk_venc_worker);
1177 
1178 	ctx->colorspace = V4L2_COLORSPACE_REC709;
1179 	ctx->ycbcr_enc = V4L2_YCBCR_ENC_DEFAULT;
1180 	ctx->quantization = V4L2_QUANTIZATION_DEFAULT;
1181 	ctx->xfer_func = V4L2_XFER_FUNC_DEFAULT;
1182 
1183 	q_data = &ctx->q_data[MTK_Q_DATA_SRC];
1184 	memset(q_data, 0, sizeof(struct mtk_q_data));
1185 	q_data->visible_width = DFT_CFG_WIDTH;
1186 	q_data->visible_height = DFT_CFG_HEIGHT;
1187 	q_data->coded_width = DFT_CFG_WIDTH;
1188 	q_data->coded_height = DFT_CFG_HEIGHT;
1189 	q_data->field = V4L2_FIELD_NONE;
1190 
1191 	q_data->fmt = &mtk_video_formats[OUT_FMT_IDX];
1192 
1193 	v4l_bound_align_image(&q_data->coded_width,
1194 				MTK_VENC_MIN_W,
1195 				MTK_VENC_MAX_W, 4,
1196 				&q_data->coded_height,
1197 				MTK_VENC_MIN_H,
1198 				MTK_VENC_MAX_H, 5, 6);
1199 
1200 	if (q_data->coded_width < DFT_CFG_WIDTH &&
1201 		(q_data->coded_width + 16) <= MTK_VENC_MAX_W)
1202 		q_data->coded_width += 16;
1203 	if (q_data->coded_height < DFT_CFG_HEIGHT &&
1204 		(q_data->coded_height + 32) <= MTK_VENC_MAX_H)
1205 		q_data->coded_height += 32;
1206 
1207 	q_data->sizeimage[0] =
1208 		q_data->coded_width * q_data->coded_height+
1209 		((ALIGN(q_data->coded_width, 16) * 2) * 16);
1210 	q_data->bytesperline[0] = q_data->coded_width;
1211 	q_data->sizeimage[1] =
1212 		(q_data->coded_width * q_data->coded_height) / 2 +
1213 		(ALIGN(q_data->coded_width, 16) * 16);
1214 	q_data->bytesperline[1] = q_data->coded_width;
1215 
1216 	q_data = &ctx->q_data[MTK_Q_DATA_DST];
1217 	memset(q_data, 0, sizeof(struct mtk_q_data));
1218 	q_data->coded_width = DFT_CFG_WIDTH;
1219 	q_data->coded_height = DFT_CFG_HEIGHT;
1220 	q_data->fmt = &mtk_video_formats[CAP_FMT_IDX];
1221 	q_data->field = V4L2_FIELD_NONE;
1222 	ctx->q_data[MTK_Q_DATA_DST].sizeimage[0] =
1223 		DFT_CFG_WIDTH * DFT_CFG_HEIGHT;
1224 	ctx->q_data[MTK_Q_DATA_DST].bytesperline[0] = 0;
1225 
1226 }
1227 
mtk_vcodec_enc_ctrls_setup(struct mtk_vcodec_ctx * ctx)1228 int mtk_vcodec_enc_ctrls_setup(struct mtk_vcodec_ctx *ctx)
1229 {
1230 	const struct v4l2_ctrl_ops *ops = &mtk_vcodec_enc_ctrl_ops;
1231 	struct v4l2_ctrl_handler *handler = &ctx->ctrl_hdl;
1232 
1233 	v4l2_ctrl_handler_init(handler, MTK_MAX_CTRLS_HINT);
1234 
1235 	v4l2_ctrl_new_std(handler, ops, V4L2_CID_MPEG_VIDEO_BITRATE,
1236 			1, 4000000, 1, 4000000);
1237 	v4l2_ctrl_new_std(handler, ops, V4L2_CID_MPEG_VIDEO_B_FRAMES,
1238 			0, 2, 1, 0);
1239 	v4l2_ctrl_new_std(handler, ops, V4L2_CID_MPEG_VIDEO_FRAME_RC_ENABLE,
1240 			0, 1, 1, 1);
1241 	v4l2_ctrl_new_std(handler, ops, V4L2_CID_MPEG_VIDEO_H264_MAX_QP,
1242 			0, 51, 1, 51);
1243 	v4l2_ctrl_new_std(handler, ops, V4L2_CID_MPEG_VIDEO_H264_I_PERIOD,
1244 			0, 65535, 1, 0);
1245 	v4l2_ctrl_new_std(handler, ops, V4L2_CID_MPEG_VIDEO_GOP_SIZE,
1246 			0, 65535, 1, 0);
1247 	v4l2_ctrl_new_std(handler, ops, V4L2_CID_MPEG_VIDEO_MB_RC_ENABLE,
1248 			0, 1, 1, 0);
1249 	v4l2_ctrl_new_std(handler, ops, V4L2_CID_MPEG_VIDEO_FORCE_KEY_FRAME,
1250 			0, 0, 0, 0);
1251 	v4l2_ctrl_new_std_menu(handler, ops,
1252 			V4L2_CID_MPEG_VIDEO_HEADER_MODE,
1253 			V4L2_MPEG_VIDEO_HEADER_MODE_JOINED_WITH_1ST_FRAME,
1254 			0, V4L2_MPEG_VIDEO_HEADER_MODE_SEPARATE);
1255 	v4l2_ctrl_new_std_menu(handler, ops, V4L2_CID_MPEG_VIDEO_H264_PROFILE,
1256 			V4L2_MPEG_VIDEO_H264_PROFILE_HIGH,
1257 			0, V4L2_MPEG_VIDEO_H264_PROFILE_HIGH);
1258 	v4l2_ctrl_new_std_menu(handler, ops, V4L2_CID_MPEG_VIDEO_H264_LEVEL,
1259 			V4L2_MPEG_VIDEO_H264_LEVEL_4_2,
1260 			0, V4L2_MPEG_VIDEO_H264_LEVEL_4_0);
1261 	if (handler->error) {
1262 		mtk_v4l2_err("Init control handler fail %d",
1263 				handler->error);
1264 		return handler->error;
1265 	}
1266 
1267 	v4l2_ctrl_handler_setup(&ctx->ctrl_hdl);
1268 
1269 	return 0;
1270 }
1271 
mtk_vcodec_enc_queue_init(void * priv,struct vb2_queue * src_vq,struct vb2_queue * dst_vq)1272 int mtk_vcodec_enc_queue_init(void *priv, struct vb2_queue *src_vq,
1273 			      struct vb2_queue *dst_vq)
1274 {
1275 	struct mtk_vcodec_ctx *ctx = priv;
1276 	int ret;
1277 
1278 	/* Note: VB2_USERPTR works with dma-contig because mt8173
1279 	 * support iommu
1280 	 * https://patchwork.kernel.org/patch/8335461/
1281 	 * https://patchwork.kernel.org/patch/7596181/
1282 	 */
1283 	src_vq->type		= V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE;
1284 	src_vq->io_modes	= VB2_DMABUF | VB2_MMAP | VB2_USERPTR;
1285 	src_vq->drv_priv	= ctx;
1286 	src_vq->buf_struct_size = sizeof(struct mtk_video_enc_buf);
1287 	src_vq->ops		= &mtk_venc_vb2_ops;
1288 	src_vq->mem_ops		= &vb2_dma_contig_memops;
1289 	src_vq->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_COPY;
1290 	src_vq->lock		= &ctx->dev->dev_mutex;
1291 	src_vq->dev		= &ctx->dev->plat_dev->dev;
1292 
1293 	ret = vb2_queue_init(src_vq);
1294 	if (ret)
1295 		return ret;
1296 
1297 	dst_vq->type		= V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE;
1298 	dst_vq->io_modes	= VB2_DMABUF | VB2_MMAP | VB2_USERPTR;
1299 	dst_vq->drv_priv	= ctx;
1300 	dst_vq->buf_struct_size = sizeof(struct v4l2_m2m_buffer);
1301 	dst_vq->ops		= &mtk_venc_vb2_ops;
1302 	dst_vq->mem_ops		= &vb2_dma_contig_memops;
1303 	dst_vq->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_COPY;
1304 	dst_vq->lock		= &ctx->dev->dev_mutex;
1305 	dst_vq->dev		= &ctx->dev->plat_dev->dev;
1306 
1307 	return vb2_queue_init(dst_vq);
1308 }
1309 
mtk_venc_unlock(struct mtk_vcodec_ctx * ctx)1310 int mtk_venc_unlock(struct mtk_vcodec_ctx *ctx)
1311 {
1312 	struct mtk_vcodec_dev *dev = ctx->dev;
1313 
1314 	mutex_unlock(&dev->enc_mutex);
1315 	return 0;
1316 }
1317 
mtk_venc_lock(struct mtk_vcodec_ctx * ctx)1318 int mtk_venc_lock(struct mtk_vcodec_ctx *ctx)
1319 {
1320 	struct mtk_vcodec_dev *dev = ctx->dev;
1321 
1322 	mutex_lock(&dev->enc_mutex);
1323 	return 0;
1324 }
1325 
mtk_vcodec_enc_release(struct mtk_vcodec_ctx * ctx)1326 void mtk_vcodec_enc_release(struct mtk_vcodec_ctx *ctx)
1327 {
1328 	int ret = venc_if_deinit(ctx);
1329 
1330 	if (ret)
1331 		mtk_v4l2_err("venc_if_deinit failed=%d", ret);
1332 
1333 	ctx->state = MTK_STATE_FREE;
1334 }
1335