1 // SPDX-License-Identifier: GPL-2.0
2 /*
3  * Copyright 2020-2021 NXP
4  */
5 
6 #include <linux/init.h>
7 #include <linux/interconnect.h>
8 #include <linux/ioctl.h>
9 #include <linux/list.h>
10 #include <linux/kernel.h>
11 #include <linux/module.h>
12 #include <linux/delay.h>
13 #include <linux/videodev2.h>
14 #include <linux/ktime.h>
15 #include <linux/rational.h>
16 #include <linux/vmalloc.h>
17 #include <media/v4l2-device.h>
18 #include <media/v4l2-event.h>
19 #include <media/v4l2-mem2mem.h>
20 #include <media/v4l2-ioctl.h>
21 #include <media/videobuf2-v4l2.h>
22 #include <media/videobuf2-dma-contig.h>
23 #include <media/videobuf2-vmalloc.h>
24 #include "vpu.h"
25 #include "vpu_defs.h"
26 #include "vpu_core.h"
27 #include "vpu_helpers.h"
28 #include "vpu_v4l2.h"
29 #include "vpu_cmds.h"
30 #include "vpu_rpc.h"
31 
32 #define VENC_OUTPUT_ENABLE	BIT(0)
33 #define VENC_CAPTURE_ENABLE	BIT(1)
34 #define VENC_ENABLE_MASK	(VENC_OUTPUT_ENABLE | VENC_CAPTURE_ENABLE)
35 #define VENC_MAX_BUF_CNT	8
36 #define VENC_MIN_BUFFER_OUT	6
37 #define VENC_MIN_BUFFER_CAP	6
38 
39 struct venc_t {
40 	struct vpu_encode_params params;
41 	u32 request_key_frame;
42 	u32 input_ready;
43 	u32 cpb_size;
44 	bool bitrate_change;
45 
46 	struct vpu_buffer enc[VENC_MAX_BUF_CNT];
47 	struct vpu_buffer ref[VENC_MAX_BUF_CNT];
48 	struct vpu_buffer act[VENC_MAX_BUF_CNT];
49 	struct list_head frames;
50 	u32 frame_count;
51 	u32 encode_count;
52 	u32 ready_count;
53 	u32 enable;
54 	u32 stopped;
55 
56 	u32 skipped_count;
57 	u32 skipped_bytes;
58 
59 	wait_queue_head_t wq;
60 };
61 
62 struct venc_frame_t {
63 	struct list_head list;
64 	struct vpu_enc_pic_info info;
65 	u32 bytesused;
66 	s64 timestamp;
67 };
68 
69 static const struct vpu_format venc_formats[] = {
70 	{
71 		.pixfmt = V4L2_PIX_FMT_NV12M,
72 		.num_planes = 2,
73 		.type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE,
74 	},
75 	{
76 		.pixfmt = V4L2_PIX_FMT_H264,
77 		.num_planes = 1,
78 		.type = V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE,
79 	},
80 	{0, 0, 0, 0},
81 };
82 
83 static int venc_querycap(struct file *file, void *fh, struct v4l2_capability *cap)
84 {
85 	strscpy(cap->driver, "amphion-vpu", sizeof(cap->driver));
86 	strscpy(cap->card, "amphion vpu encoder", sizeof(cap->card));
87 	strscpy(cap->bus_info, "platform: amphion-vpu", sizeof(cap->bus_info));
88 
89 	return 0;
90 }
91 
92 static int venc_enum_fmt(struct file *file, void *fh, struct v4l2_fmtdesc *f)
93 {
94 	struct vpu_inst *inst = to_inst(file);
95 	const struct vpu_format *fmt;
96 
97 	memset(f->reserved, 0, sizeof(f->reserved));
98 	fmt = vpu_helper_enum_format(inst, f->type, f->index);
99 	if (!fmt)
100 		return -EINVAL;
101 
102 	f->pixelformat = fmt->pixfmt;
103 	f->flags = fmt->flags;
104 
105 	return 0;
106 }
107 
108 static int venc_enum_framesizes(struct file *file, void *fh, struct v4l2_frmsizeenum *fsize)
109 {
110 	struct vpu_inst *inst = to_inst(file);
111 	const struct vpu_core_resources *res;
112 
113 	if (!fsize || fsize->index)
114 		return -EINVAL;
115 
116 	if (!vpu_helper_find_format(inst, 0, fsize->pixel_format))
117 		return -EINVAL;
118 
119 	res = vpu_get_resource(inst);
120 	if (!res)
121 		return -EINVAL;
122 	fsize->type = V4L2_FRMSIZE_TYPE_STEPWISE;
123 	fsize->stepwise.max_width = res->max_width;
124 	fsize->stepwise.max_height = res->max_height;
125 	fsize->stepwise.min_width = res->min_width;
126 	fsize->stepwise.min_height = res->min_height;
127 	fsize->stepwise.step_width = res->step_width;
128 	fsize->stepwise.step_height = res->step_height;
129 
130 	return 0;
131 }
132 
133 static int venc_enum_frameintervals(struct file *file, void *fh, struct v4l2_frmivalenum *fival)
134 {
135 	struct vpu_inst *inst = to_inst(file);
136 	const struct vpu_core_resources *res;
137 
138 	if (!fival || fival->index)
139 		return -EINVAL;
140 
141 	if (!vpu_helper_find_format(inst, 0, fival->pixel_format))
142 		return -EINVAL;
143 
144 	if (!fival->width || !fival->height)
145 		return -EINVAL;
146 
147 	res = vpu_get_resource(inst);
148 	if (!res)
149 		return -EINVAL;
150 	if (fival->width < res->min_width || fival->width > res->max_width ||
151 	    fival->height < res->min_height || fival->height > res->max_height)
152 		return -EINVAL;
153 
154 	fival->type = V4L2_FRMIVAL_TYPE_CONTINUOUS;
155 	fival->stepwise.min.numerator = 1;
156 	fival->stepwise.min.denominator = USHRT_MAX;
157 	fival->stepwise.max.numerator = USHRT_MAX;
158 	fival->stepwise.max.denominator = 1;
159 	fival->stepwise.step.numerator = 1;
160 	fival->stepwise.step.denominator = 1;
161 
162 	return 0;
163 }
164 
165 static int venc_g_fmt(struct file *file, void *fh, struct v4l2_format *f)
166 {
167 	struct vpu_inst *inst = to_inst(file);
168 	struct venc_t *venc = inst->priv;
169 	struct v4l2_pix_format_mplane *pixmp = &f->fmt.pix_mp;
170 	struct vpu_format *cur_fmt;
171 	int i;
172 
173 	cur_fmt = vpu_get_format(inst, f->type);
174 
175 	pixmp->pixelformat = cur_fmt->pixfmt;
176 	pixmp->num_planes = cur_fmt->num_planes;
177 	pixmp->width = cur_fmt->width;
178 	pixmp->height = cur_fmt->height;
179 	pixmp->field = cur_fmt->field;
180 	pixmp->flags = cur_fmt->flags;
181 	for (i = 0; i < pixmp->num_planes; i++) {
182 		pixmp->plane_fmt[i].bytesperline = cur_fmt->bytesperline[i];
183 		pixmp->plane_fmt[i].sizeimage = cur_fmt->sizeimage[i];
184 	}
185 
186 	f->fmt.pix_mp.colorspace = venc->params.color.primaries;
187 	f->fmt.pix_mp.xfer_func = venc->params.color.transfer;
188 	f->fmt.pix_mp.ycbcr_enc = venc->params.color.matrix;
189 	f->fmt.pix_mp.quantization = venc->params.color.full_range;
190 
191 	return 0;
192 }
193 
194 static int venc_try_fmt(struct file *file, void *fh, struct v4l2_format *f)
195 {
196 	struct vpu_inst *inst = to_inst(file);
197 
198 	vpu_try_fmt_common(inst, f);
199 
200 	return 0;
201 }
202 
203 static int venc_s_fmt(struct file *file, void *fh, struct v4l2_format *f)
204 {
205 	struct vpu_inst *inst = to_inst(file);
206 	const struct vpu_format *fmt;
207 	struct vpu_format *cur_fmt;
208 	struct vb2_queue *q;
209 	struct venc_t *venc = inst->priv;
210 	struct v4l2_pix_format_mplane *pix_mp = &f->fmt.pix_mp;
211 	int i;
212 
213 	q = v4l2_m2m_get_vq(inst->fh.m2m_ctx, f->type);
214 	if (!q)
215 		return -EINVAL;
216 	if (vb2_is_busy(q))
217 		return -EBUSY;
218 
219 	fmt = vpu_try_fmt_common(inst, f);
220 	if (!fmt)
221 		return -EINVAL;
222 
223 	cur_fmt = vpu_get_format(inst, f->type);
224 
225 	cur_fmt->pixfmt = fmt->pixfmt;
226 	cur_fmt->num_planes = fmt->num_planes;
227 	cur_fmt->flags = fmt->flags;
228 	cur_fmt->width = pix_mp->width;
229 	cur_fmt->height = pix_mp->height;
230 	for (i = 0; i < fmt->num_planes; i++) {
231 		cur_fmt->sizeimage[i] = pix_mp->plane_fmt[i].sizeimage;
232 		cur_fmt->bytesperline[i] = pix_mp->plane_fmt[i].bytesperline;
233 	}
234 
235 	if (pix_mp->field != V4L2_FIELD_ANY)
236 		cur_fmt->field = pix_mp->field;
237 
238 	if (V4L2_TYPE_IS_OUTPUT(f->type)) {
239 		venc->params.input_format = cur_fmt->pixfmt;
240 		venc->params.src_stride = cur_fmt->bytesperline[0];
241 		venc->params.src_width = cur_fmt->width;
242 		venc->params.src_height = cur_fmt->height;
243 		venc->params.crop.left = 0;
244 		venc->params.crop.top = 0;
245 		venc->params.crop.width = cur_fmt->width;
246 		venc->params.crop.height = cur_fmt->height;
247 	} else {
248 		venc->params.codec_format = cur_fmt->pixfmt;
249 		venc->params.out_width = cur_fmt->width;
250 		venc->params.out_height = cur_fmt->height;
251 	}
252 
253 	if (V4L2_TYPE_IS_OUTPUT(f->type)) {
254 		if (!vpu_color_check_primaries(pix_mp->colorspace)) {
255 			venc->params.color.primaries = pix_mp->colorspace;
256 			vpu_color_get_default(venc->params.color.primaries,
257 					      &venc->params.color.transfer,
258 					      &venc->params.color.matrix,
259 					      &venc->params.color.full_range);
260 		}
261 		if (!vpu_color_check_transfers(pix_mp->xfer_func))
262 			venc->params.color.transfer = pix_mp->xfer_func;
263 		if (!vpu_color_check_matrix(pix_mp->ycbcr_enc))
264 			venc->params.color.matrix = pix_mp->ycbcr_enc;
265 		if (!vpu_color_check_full_range(pix_mp->quantization))
266 			venc->params.color.full_range = pix_mp->quantization;
267 	}
268 
269 	pix_mp->colorspace = venc->params.color.primaries;
270 	pix_mp->xfer_func = venc->params.color.transfer;
271 	pix_mp->ycbcr_enc = venc->params.color.matrix;
272 	pix_mp->quantization = venc->params.color.full_range;
273 
274 	return 0;
275 }
276 
277 static int venc_g_parm(struct file *file, void *fh, struct v4l2_streamparm *parm)
278 {
279 	struct vpu_inst *inst = to_inst(file);
280 	struct venc_t *venc = inst->priv;
281 	struct v4l2_fract *timeperframe = &parm->parm.capture.timeperframe;
282 
283 	if (!parm)
284 		return -EINVAL;
285 
286 	if (!V4L2_TYPE_IS_OUTPUT(parm->type))
287 		return -EINVAL;
288 
289 	if (!vpu_helper_check_type(inst, parm->type))
290 		return -EINVAL;
291 
292 	parm->parm.capture.capability = V4L2_CAP_TIMEPERFRAME;
293 	parm->parm.capture.readbuffers = 0;
294 	timeperframe->numerator = venc->params.frame_rate.numerator;
295 	timeperframe->denominator = venc->params.frame_rate.denominator;
296 
297 	return 0;
298 }
299 
300 static int venc_s_parm(struct file *file, void *fh, struct v4l2_streamparm *parm)
301 {
302 	struct vpu_inst *inst = to_inst(file);
303 	struct venc_t *venc = inst->priv;
304 	struct v4l2_fract *timeperframe = &parm->parm.capture.timeperframe;
305 	unsigned long n, d;
306 
307 	if (!parm)
308 		return -EINVAL;
309 
310 	if (!V4L2_TYPE_IS_OUTPUT(parm->type))
311 		return -EINVAL;
312 
313 	if (!vpu_helper_check_type(inst, parm->type))
314 		return -EINVAL;
315 
316 	if (!timeperframe->numerator)
317 		timeperframe->numerator = venc->params.frame_rate.numerator;
318 	if (!timeperframe->denominator)
319 		timeperframe->denominator = venc->params.frame_rate.denominator;
320 
321 	venc->params.frame_rate.numerator = timeperframe->numerator;
322 	venc->params.frame_rate.denominator = timeperframe->denominator;
323 
324 	rational_best_approximation(venc->params.frame_rate.numerator,
325 				    venc->params.frame_rate.denominator,
326 				    venc->params.frame_rate.numerator,
327 				    venc->params.frame_rate.denominator,
328 				    &n, &d);
329 	venc->params.frame_rate.numerator = n;
330 	venc->params.frame_rate.denominator = d;
331 
332 	parm->parm.capture.capability = V4L2_CAP_TIMEPERFRAME;
333 	memset(parm->parm.capture.reserved, 0, sizeof(parm->parm.capture.reserved));
334 
335 	return 0;
336 }
337 
338 static int venc_g_selection(struct file *file, void *fh, struct v4l2_selection *s)
339 {
340 	struct vpu_inst *inst = to_inst(file);
341 	struct venc_t *venc = inst->priv;
342 
343 	if (s->type != V4L2_BUF_TYPE_VIDEO_OUTPUT && s->type != V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE)
344 		return -EINVAL;
345 
346 	switch (s->target) {
347 	case V4L2_SEL_TGT_CROP_DEFAULT:
348 	case V4L2_SEL_TGT_CROP_BOUNDS:
349 		s->r.left = 0;
350 		s->r.top = 0;
351 		s->r.width = inst->out_format.width;
352 		s->r.height = inst->out_format.height;
353 		break;
354 	case V4L2_SEL_TGT_CROP:
355 		s->r = venc->params.crop;
356 		break;
357 	default:
358 		return -EINVAL;
359 	}
360 
361 	return 0;
362 }
363 
364 static int venc_valid_crop(struct venc_t *venc, const struct vpu_core_resources *res)
365 {
366 	struct v4l2_rect *rect = NULL;
367 	u32 min_width;
368 	u32 min_height;
369 	u32 src_width;
370 	u32 src_height;
371 
372 	rect = &venc->params.crop;
373 	min_width = res->min_width;
374 	min_height = res->min_height;
375 	src_width = venc->params.src_width;
376 	src_height = venc->params.src_height;
377 
378 	if (rect->width == 0 || rect->height == 0)
379 		return -EINVAL;
380 	if (rect->left > src_width - min_width || rect->top > src_height - min_height)
381 		return -EINVAL;
382 
383 	rect->width = min(rect->width, src_width - rect->left);
384 	rect->width = max_t(u32, rect->width, min_width);
385 
386 	rect->height = min(rect->height, src_height - rect->top);
387 	rect->height = max_t(u32, rect->height, min_height);
388 
389 	return 0;
390 }
391 
392 static int venc_s_selection(struct file *file, void *fh, struct v4l2_selection *s)
393 {
394 	struct vpu_inst *inst = to_inst(file);
395 	const struct vpu_core_resources *res;
396 	struct venc_t *venc = inst->priv;
397 
398 	res = vpu_get_resource(inst);
399 	if (!res)
400 		return -EINVAL;
401 
402 	if (s->type != V4L2_BUF_TYPE_VIDEO_OUTPUT && s->type != V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE)
403 		return -EINVAL;
404 	if (s->target != V4L2_SEL_TGT_CROP)
405 		return -EINVAL;
406 
407 	venc->params.crop.left = ALIGN(s->r.left, res->step_width);
408 	venc->params.crop.top = ALIGN(s->r.top, res->step_height);
409 	venc->params.crop.width = ALIGN(s->r.width, res->step_width);
410 	venc->params.crop.height = ALIGN(s->r.height, res->step_height);
411 	if (venc_valid_crop(venc, res)) {
412 		venc->params.crop.left = 0;
413 		venc->params.crop.top = 0;
414 		venc->params.crop.width = venc->params.src_width;
415 		venc->params.crop.height = venc->params.src_height;
416 	}
417 
418 	inst->crop = venc->params.crop;
419 
420 	return 0;
421 }
422 
423 static int venc_drain(struct vpu_inst *inst)
424 {
425 	struct venc_t *venc = inst->priv;
426 	int ret;
427 
428 	if (!inst->fh.m2m_ctx)
429 		return 0;
430 
431 	if (inst->state != VPU_CODEC_STATE_DRAIN)
432 		return 0;
433 
434 	if (!vpu_is_source_empty(inst))
435 		return 0;
436 
437 	if (!venc->input_ready)
438 		return 0;
439 
440 	venc->input_ready = false;
441 	vpu_trace(inst->dev, "[%d]\n", inst->id);
442 	ret = vpu_session_stop(inst);
443 	if (ret)
444 		return ret;
445 	inst->state = VPU_CODEC_STATE_STOP;
446 	wake_up_all(&venc->wq);
447 
448 	return 0;
449 }
450 
451 static int venc_request_eos(struct vpu_inst *inst)
452 {
453 	inst->state = VPU_CODEC_STATE_DRAIN;
454 	venc_drain(inst);
455 
456 	return 0;
457 }
458 
459 static int venc_encoder_cmd(struct file *file, void *fh, struct v4l2_encoder_cmd *cmd)
460 {
461 	struct vpu_inst *inst = to_inst(file);
462 	int ret;
463 
464 	ret = v4l2_m2m_ioctl_try_encoder_cmd(file, fh, cmd);
465 	if (ret)
466 		return ret;
467 
468 	vpu_inst_lock(inst);
469 	if (cmd->cmd == V4L2_ENC_CMD_STOP) {
470 		if (inst->state == VPU_CODEC_STATE_DEINIT)
471 			vpu_set_last_buffer_dequeued(inst);
472 		else
473 			venc_request_eos(inst);
474 	}
475 	vpu_inst_unlock(inst);
476 
477 	return 0;
478 }
479 
480 static int venc_subscribe_event(struct v4l2_fh *fh, const struct v4l2_event_subscription *sub)
481 {
482 	switch (sub->type) {
483 	case V4L2_EVENT_EOS:
484 		return v4l2_event_subscribe(fh, sub, 0, NULL);
485 	case V4L2_EVENT_CTRL:
486 		return v4l2_ctrl_subscribe_event(fh, sub);
487 	default:
488 		return -EINVAL;
489 	}
490 }
491 
492 static const struct v4l2_ioctl_ops venc_ioctl_ops = {
493 	.vidioc_querycap               = venc_querycap,
494 	.vidioc_enum_fmt_vid_cap       = venc_enum_fmt,
495 	.vidioc_enum_fmt_vid_out       = venc_enum_fmt,
496 	.vidioc_enum_framesizes        = venc_enum_framesizes,
497 	.vidioc_enum_frameintervals    = venc_enum_frameintervals,
498 	.vidioc_g_fmt_vid_cap_mplane   = venc_g_fmt,
499 	.vidioc_g_fmt_vid_out_mplane   = venc_g_fmt,
500 	.vidioc_try_fmt_vid_cap_mplane = venc_try_fmt,
501 	.vidioc_try_fmt_vid_out_mplane = venc_try_fmt,
502 	.vidioc_s_fmt_vid_cap_mplane   = venc_s_fmt,
503 	.vidioc_s_fmt_vid_out_mplane   = venc_s_fmt,
504 	.vidioc_g_parm                 = venc_g_parm,
505 	.vidioc_s_parm                 = venc_s_parm,
506 	.vidioc_g_selection            = venc_g_selection,
507 	.vidioc_s_selection            = venc_s_selection,
508 	.vidioc_try_encoder_cmd        = v4l2_m2m_ioctl_try_encoder_cmd,
509 	.vidioc_encoder_cmd            = venc_encoder_cmd,
510 	.vidioc_subscribe_event        = venc_subscribe_event,
511 	.vidioc_unsubscribe_event      = v4l2_event_unsubscribe,
512 	.vidioc_reqbufs                = v4l2_m2m_ioctl_reqbufs,
513 	.vidioc_querybuf               = v4l2_m2m_ioctl_querybuf,
514 	.vidioc_create_bufs	       = v4l2_m2m_ioctl_create_bufs,
515 	.vidioc_prepare_buf	       = v4l2_m2m_ioctl_prepare_buf,
516 	.vidioc_qbuf                   = v4l2_m2m_ioctl_qbuf,
517 	.vidioc_expbuf                 = v4l2_m2m_ioctl_expbuf,
518 	.vidioc_dqbuf                  = v4l2_m2m_ioctl_dqbuf,
519 	.vidioc_streamon               = v4l2_m2m_ioctl_streamon,
520 	.vidioc_streamoff              = v4l2_m2m_ioctl_streamoff,
521 };
522 
523 static int venc_op_s_ctrl(struct v4l2_ctrl *ctrl)
524 {
525 	struct vpu_inst *inst = ctrl_to_inst(ctrl);
526 	struct venc_t *venc = inst->priv;
527 	int ret = 0;
528 
529 	vpu_inst_lock(inst);
530 	switch (ctrl->id) {
531 	case V4L2_CID_MPEG_VIDEO_H264_PROFILE:
532 		venc->params.profile = ctrl->val;
533 		break;
534 	case V4L2_CID_MPEG_VIDEO_H264_LEVEL:
535 		venc->params.level = ctrl->val;
536 		break;
537 	case V4L2_CID_MPEG_VIDEO_FRAME_RC_ENABLE:
538 		venc->params.rc_enable = ctrl->val;
539 		break;
540 	case V4L2_CID_MPEG_VIDEO_BITRATE_MODE:
541 		venc->params.rc_mode = ctrl->val;
542 		break;
543 	case V4L2_CID_MPEG_VIDEO_BITRATE:
544 		if (ctrl->val != venc->params.bitrate)
545 			venc->bitrate_change = true;
546 		venc->params.bitrate = ctrl->val;
547 		break;
548 	case V4L2_CID_MPEG_VIDEO_BITRATE_PEAK:
549 		venc->params.bitrate_max = ctrl->val;
550 		break;
551 	case V4L2_CID_MPEG_VIDEO_GOP_SIZE:
552 		venc->params.gop_length = ctrl->val;
553 		break;
554 	case V4L2_CID_MPEG_VIDEO_B_FRAMES:
555 		venc->params.bframes = ctrl->val;
556 		break;
557 	case V4L2_CID_MPEG_VIDEO_H264_I_FRAME_QP:
558 		venc->params.i_frame_qp = ctrl->val;
559 		break;
560 	case V4L2_CID_MPEG_VIDEO_H264_P_FRAME_QP:
561 		venc->params.p_frame_qp = ctrl->val;
562 		break;
563 	case V4L2_CID_MPEG_VIDEO_H264_B_FRAME_QP:
564 		venc->params.b_frame_qp = ctrl->val;
565 		break;
566 	case V4L2_CID_MPEG_VIDEO_FORCE_KEY_FRAME:
567 		venc->request_key_frame = 1;
568 		break;
569 	case V4L2_CID_MPEG_VIDEO_H264_CPB_SIZE:
570 		venc->cpb_size = ctrl->val * 1024;
571 		break;
572 	case V4L2_CID_MPEG_VIDEO_H264_VUI_SAR_ENABLE:
573 		venc->params.sar.enable = ctrl->val;
574 		break;
575 	case V4L2_CID_MPEG_VIDEO_H264_VUI_SAR_IDC:
576 		venc->params.sar.idc = ctrl->val;
577 		break;
578 	case V4L2_CID_MPEG_VIDEO_H264_VUI_EXT_SAR_WIDTH:
579 		venc->params.sar.width = ctrl->val;
580 		break;
581 	case V4L2_CID_MPEG_VIDEO_H264_VUI_EXT_SAR_HEIGHT:
582 		venc->params.sar.height = ctrl->val;
583 		break;
584 	case V4L2_CID_MPEG_VIDEO_HEADER_MODE:
585 		break;
586 	default:
587 		ret = -EINVAL;
588 		break;
589 	}
590 	vpu_inst_unlock(inst);
591 
592 	return ret;
593 }
594 
595 static const struct v4l2_ctrl_ops venc_ctrl_ops = {
596 	.s_ctrl = venc_op_s_ctrl,
597 	.g_volatile_ctrl = vpu_helper_g_volatile_ctrl,
598 };
599 
600 static int venc_ctrl_init(struct vpu_inst *inst)
601 {
602 	struct v4l2_ctrl *ctrl;
603 	int ret;
604 
605 	ret = v4l2_ctrl_handler_init(&inst->ctrl_handler, 20);
606 	if (ret)
607 		return ret;
608 
609 	v4l2_ctrl_new_std_menu(&inst->ctrl_handler, &venc_ctrl_ops,
610 			       V4L2_CID_MPEG_VIDEO_H264_PROFILE,
611 			       V4L2_MPEG_VIDEO_H264_PROFILE_HIGH,
612 			       ~((1 << V4L2_MPEG_VIDEO_H264_PROFILE_BASELINE) |
613 				 (1 << V4L2_MPEG_VIDEO_H264_PROFILE_MAIN) |
614 				 (1 << V4L2_MPEG_VIDEO_H264_PROFILE_HIGH)),
615 			       V4L2_MPEG_VIDEO_H264_PROFILE_HIGH);
616 
617 	v4l2_ctrl_new_std_menu(&inst->ctrl_handler, &venc_ctrl_ops,
618 			       V4L2_CID_MPEG_VIDEO_H264_LEVEL,
619 			       V4L2_MPEG_VIDEO_H264_LEVEL_5_1,
620 			       0x0,
621 			       V4L2_MPEG_VIDEO_H264_LEVEL_4_0);
622 
623 	v4l2_ctrl_new_std(&inst->ctrl_handler, &venc_ctrl_ops,
624 			  V4L2_CID_MPEG_VIDEO_FRAME_RC_ENABLE, 0, 1, 1, 1);
625 
626 	v4l2_ctrl_new_std_menu(&inst->ctrl_handler, &venc_ctrl_ops,
627 			       V4L2_CID_MPEG_VIDEO_BITRATE_MODE,
628 			       V4L2_MPEG_VIDEO_BITRATE_MODE_CBR,
629 			       ~((1 << V4L2_MPEG_VIDEO_BITRATE_MODE_VBR) |
630 				 (1 << V4L2_MPEG_VIDEO_BITRATE_MODE_CBR)),
631 			       V4L2_MPEG_VIDEO_BITRATE_MODE_CBR);
632 
633 	v4l2_ctrl_new_std(&inst->ctrl_handler, &venc_ctrl_ops,
634 			  V4L2_CID_MPEG_VIDEO_BITRATE,
635 			  BITRATE_MIN,
636 			  BITRATE_MAX,
637 			  BITRATE_STEP,
638 			  BITRATE_DEFAULT);
639 
640 	v4l2_ctrl_new_std(&inst->ctrl_handler, &venc_ctrl_ops,
641 			  V4L2_CID_MPEG_VIDEO_BITRATE_PEAK,
642 			  BITRATE_MIN, BITRATE_MAX,
643 			  BITRATE_STEP,
644 			  BITRATE_DEFAULT_PEAK);
645 
646 	v4l2_ctrl_new_std(&inst->ctrl_handler, &venc_ctrl_ops,
647 			  V4L2_CID_MPEG_VIDEO_GOP_SIZE, 1, 8000, 1, 30);
648 
649 	v4l2_ctrl_new_std(&inst->ctrl_handler, &venc_ctrl_ops,
650 			  V4L2_CID_MPEG_VIDEO_B_FRAMES, 0, 4, 1, 0);
651 
652 	v4l2_ctrl_new_std(&inst->ctrl_handler, &venc_ctrl_ops,
653 			  V4L2_CID_MPEG_VIDEO_H264_I_FRAME_QP, 1, 51, 1, 26);
654 	v4l2_ctrl_new_std(&inst->ctrl_handler, &venc_ctrl_ops,
655 			  V4L2_CID_MPEG_VIDEO_H264_P_FRAME_QP, 1, 51, 1, 28);
656 	v4l2_ctrl_new_std(&inst->ctrl_handler, &venc_ctrl_ops,
657 			  V4L2_CID_MPEG_VIDEO_H264_B_FRAME_QP, 1, 51, 1, 30);
658 	v4l2_ctrl_new_std(&inst->ctrl_handler, &venc_ctrl_ops,
659 			  V4L2_CID_MPEG_VIDEO_FORCE_KEY_FRAME, 0, 0, 0, 0);
660 	ctrl = v4l2_ctrl_new_std(&inst->ctrl_handler, &venc_ctrl_ops,
661 				 V4L2_CID_MIN_BUFFERS_FOR_CAPTURE, 1, 32, 1, 2);
662 	if (ctrl)
663 		ctrl->flags |= V4L2_CTRL_FLAG_VOLATILE;
664 	ctrl = v4l2_ctrl_new_std(&inst->ctrl_handler, &venc_ctrl_ops,
665 				 V4L2_CID_MIN_BUFFERS_FOR_OUTPUT, 1, 32, 1, 2);
666 	if (ctrl)
667 		ctrl->flags |= V4L2_CTRL_FLAG_VOLATILE;
668 
669 	v4l2_ctrl_new_std(&inst->ctrl_handler, &venc_ctrl_ops,
670 			  V4L2_CID_MPEG_VIDEO_H264_CPB_SIZE, 64, 10240, 1, 1024);
671 
672 	v4l2_ctrl_new_std(&inst->ctrl_handler, &venc_ctrl_ops,
673 			  V4L2_CID_MPEG_VIDEO_H264_VUI_SAR_ENABLE, 0, 1, 1, 1);
674 	v4l2_ctrl_new_std_menu(&inst->ctrl_handler, &venc_ctrl_ops,
675 			       V4L2_CID_MPEG_VIDEO_H264_VUI_SAR_IDC,
676 			       V4L2_MPEG_VIDEO_H264_VUI_SAR_IDC_EXTENDED,
677 			       0x0,
678 			       V4L2_MPEG_VIDEO_H264_VUI_SAR_IDC_1x1);
679 	v4l2_ctrl_new_std(&inst->ctrl_handler, &venc_ctrl_ops,
680 			  V4L2_CID_MPEG_VIDEO_H264_VUI_EXT_SAR_WIDTH,
681 			  0, USHRT_MAX, 1, 1);
682 	v4l2_ctrl_new_std(&inst->ctrl_handler, &venc_ctrl_ops,
683 			  V4L2_CID_MPEG_VIDEO_H264_VUI_EXT_SAR_HEIGHT,
684 			  0, USHRT_MAX, 1, 1);
685 	v4l2_ctrl_new_std_menu(&inst->ctrl_handler, &venc_ctrl_ops,
686 			       V4L2_CID_MPEG_VIDEO_HEADER_MODE,
687 			       V4L2_MPEG_VIDEO_HEADER_MODE_JOINED_WITH_1ST_FRAME,
688 			       ~(1 << V4L2_MPEG_VIDEO_HEADER_MODE_JOINED_WITH_1ST_FRAME),
689 			       V4L2_MPEG_VIDEO_HEADER_MODE_JOINED_WITH_1ST_FRAME);
690 
691 	if (inst->ctrl_handler.error) {
692 		ret = inst->ctrl_handler.error;
693 		v4l2_ctrl_handler_free(&inst->ctrl_handler);
694 		return ret;
695 	}
696 
697 	ret = v4l2_ctrl_handler_setup(&inst->ctrl_handler);
698 	if (ret) {
699 		dev_err(inst->dev, "[%d] setup ctrls fail, ret = %d\n", inst->id, ret);
700 		v4l2_ctrl_handler_free(&inst->ctrl_handler);
701 		return ret;
702 	}
703 
704 	return 0;
705 }
706 
707 static bool venc_check_ready(struct vpu_inst *inst, unsigned int type)
708 {
709 	struct venc_t *venc = inst->priv;
710 
711 	if (V4L2_TYPE_IS_OUTPUT(type)) {
712 		if (vpu_helper_get_free_space(inst) < venc->cpb_size)
713 			return false;
714 		return venc->input_ready;
715 	}
716 
717 	if (list_empty(&venc->frames))
718 		return false;
719 	return true;
720 }
721 
722 static u32 venc_get_enable_mask(u32 type)
723 {
724 	if (V4L2_TYPE_IS_OUTPUT(type))
725 		return VENC_OUTPUT_ENABLE;
726 	else
727 		return VENC_CAPTURE_ENABLE;
728 }
729 
730 static void venc_set_enable(struct venc_t *venc, u32 type, int enable)
731 {
732 	u32 mask = venc_get_enable_mask(type);
733 
734 	if (enable)
735 		venc->enable |= mask;
736 	else
737 		venc->enable &= ~mask;
738 }
739 
740 static u32 venc_get_enable(struct venc_t *venc, u32 type)
741 {
742 	return venc->enable & venc_get_enable_mask(type);
743 }
744 
745 static void venc_input_done(struct vpu_inst *inst)
746 {
747 	struct venc_t *venc = inst->priv;
748 
749 	vpu_inst_lock(inst);
750 	venc->input_ready = true;
751 	vpu_process_output_buffer(inst);
752 	if (inst->state == VPU_CODEC_STATE_DRAIN)
753 		venc_drain(inst);
754 	vpu_inst_unlock(inst);
755 }
756 
757 /*
758  * It's hardware limitation, that there may be several bytes
759  * redundant data at the beginning of frame.
760  * For android platform, the redundant data may cause cts test fail
761  * So driver will strip them
762  */
763 static int venc_precheck_encoded_frame(struct vpu_inst *inst, struct venc_frame_t *frame)
764 {
765 	struct venc_t *venc;
766 	int skipped;
767 
768 	if (!frame || !frame->bytesused)
769 		return -EINVAL;
770 
771 	venc = inst->priv;
772 	skipped = vpu_helper_find_startcode(&inst->stream_buffer,
773 					    inst->cap_format.pixfmt,
774 					    frame->info.wptr - inst->stream_buffer.phys,
775 					    frame->bytesused);
776 	if (skipped > 0) {
777 		frame->bytesused -= skipped;
778 		frame->info.wptr = vpu_helper_step_walk(&inst->stream_buffer,
779 							frame->info.wptr, skipped);
780 		venc->skipped_bytes += skipped;
781 		venc->skipped_count++;
782 	}
783 
784 	return 0;
785 }
786 
787 static int venc_get_one_encoded_frame(struct vpu_inst *inst,
788 				      struct venc_frame_t *frame,
789 				      struct vb2_v4l2_buffer *vbuf)
790 {
791 	struct venc_t *venc = inst->priv;
792 	struct vb2_v4l2_buffer *src_buf;
793 
794 	if (!vbuf)
795 		return -EAGAIN;
796 
797 	src_buf = vpu_find_buf_by_sequence(inst, inst->out_format.type, frame->info.frame_id);
798 	if (src_buf) {
799 		v4l2_m2m_buf_copy_metadata(src_buf, vbuf, true);
800 		vpu_set_buffer_state(src_buf, VPU_BUF_STATE_IDLE);
801 		v4l2_m2m_src_buf_remove_by_buf(inst->fh.m2m_ctx, src_buf);
802 		v4l2_m2m_buf_done(src_buf, VB2_BUF_STATE_DONE);
803 	} else {
804 		vbuf->vb2_buf.timestamp = frame->info.timestamp;
805 	}
806 	if (!venc_get_enable(inst->priv, vbuf->vb2_buf.type)) {
807 		v4l2_m2m_buf_done(vbuf, VB2_BUF_STATE_ERROR);
808 		return 0;
809 	}
810 	if (frame->bytesused > vbuf->vb2_buf.planes[0].length) {
811 		v4l2_m2m_buf_done(vbuf, VB2_BUF_STATE_ERROR);
812 		return -ENOMEM;
813 	}
814 
815 	venc_precheck_encoded_frame(inst, frame);
816 
817 	if (frame->bytesused) {
818 		u32 rptr = frame->info.wptr;
819 		void *dst = vb2_plane_vaddr(&vbuf->vb2_buf, 0);
820 
821 		vpu_helper_copy_from_stream_buffer(&inst->stream_buffer,
822 						   &rptr, frame->bytesused, dst);
823 		vpu_iface_update_stream_buffer(inst, rptr, 0);
824 	}
825 	vb2_set_plane_payload(&vbuf->vb2_buf, 0, frame->bytesused);
826 	vbuf->sequence = frame->info.frame_id;
827 	vbuf->field = inst->cap_format.field;
828 	vbuf->flags |= frame->info.pic_type;
829 	vpu_set_buffer_state(vbuf, VPU_BUF_STATE_IDLE);
830 	dev_dbg(inst->dev, "[%d][OUTPUT TS]%32lld\n", inst->id, vbuf->vb2_buf.timestamp);
831 	v4l2_m2m_buf_done(vbuf, VB2_BUF_STATE_DONE);
832 	venc->ready_count++;
833 
834 	if (vbuf->flags & V4L2_BUF_FLAG_KEYFRAME)
835 		dev_dbg(inst->dev, "[%d][%d]key frame\n", inst->id, frame->info.frame_id);
836 
837 	return 0;
838 }
839 
840 static int venc_get_encoded_frames(struct vpu_inst *inst)
841 {
842 	struct venc_t *venc;
843 	struct venc_frame_t *frame;
844 	struct venc_frame_t *tmp;
845 
846 	if (!inst->fh.m2m_ctx)
847 		return 0;
848 	venc = inst->priv;
849 	list_for_each_entry_safe(frame, tmp, &venc->frames, list) {
850 		if (venc_get_one_encoded_frame(inst, frame,
851 					       v4l2_m2m_dst_buf_remove(inst->fh.m2m_ctx)))
852 			break;
853 		list_del_init(&frame->list);
854 		vfree(frame);
855 	}
856 
857 	return 0;
858 }
859 
860 static int venc_frame_encoded(struct vpu_inst *inst, void *arg)
861 {
862 	struct vpu_enc_pic_info *info = arg;
863 	struct venc_frame_t *frame;
864 	struct venc_t *venc;
865 	int ret = 0;
866 
867 	if (!info)
868 		return -EINVAL;
869 	venc = inst->priv;
870 	frame = vzalloc(sizeof(*frame));
871 	if (!frame)
872 		return -ENOMEM;
873 
874 	memcpy(&frame->info, info, sizeof(frame->info));
875 	frame->bytesused = info->frame_size;
876 
877 	vpu_inst_lock(inst);
878 	list_add_tail(&frame->list, &venc->frames);
879 	venc->encode_count++;
880 	venc_get_encoded_frames(inst);
881 	vpu_inst_unlock(inst);
882 
883 	return ret;
884 }
885 
886 static void venc_set_last_buffer_dequeued(struct vpu_inst *inst)
887 {
888 	struct venc_t *venc = inst->priv;
889 
890 	if (venc->stopped && list_empty(&venc->frames))
891 		vpu_set_last_buffer_dequeued(inst);
892 }
893 
894 static void venc_stop_done(struct vpu_inst *inst)
895 {
896 	struct venc_t *venc = inst->priv;
897 
898 	vpu_inst_lock(inst);
899 	venc->stopped = true;
900 	venc_set_last_buffer_dequeued(inst);
901 	vpu_inst_unlock(inst);
902 
903 	wake_up_all(&venc->wq);
904 }
905 
906 static void venc_event_notify(struct vpu_inst *inst, u32 event, void *data)
907 {
908 }
909 
910 static void venc_release(struct vpu_inst *inst)
911 {
912 }
913 
914 static void venc_cleanup(struct vpu_inst *inst)
915 {
916 	struct venc_t *venc;
917 
918 	if (!inst)
919 		return;
920 
921 	venc = inst->priv;
922 	vfree(venc);
923 	inst->priv = NULL;
924 	vfree(inst);
925 }
926 
927 static int venc_start_session(struct vpu_inst *inst, u32 type)
928 {
929 	struct venc_t *venc = inst->priv;
930 	int stream_buffer_size;
931 	int ret;
932 
933 	venc_set_enable(venc, type, 1);
934 	if ((venc->enable & VENC_ENABLE_MASK) != VENC_ENABLE_MASK)
935 		return 0;
936 
937 	vpu_iface_init_instance(inst);
938 	stream_buffer_size = vpu_iface_get_stream_buffer_size(inst->core);
939 	if (stream_buffer_size > 0) {
940 		inst->stream_buffer.length = max_t(u32, stream_buffer_size, venc->cpb_size * 3);
941 		ret = vpu_alloc_dma(inst->core, &inst->stream_buffer);
942 		if (ret)
943 			goto error;
944 
945 		inst->use_stream_buffer = true;
946 		vpu_iface_config_stream_buffer(inst, &inst->stream_buffer);
947 	}
948 
949 	ret = vpu_iface_set_encode_params(inst, &venc->params, 0);
950 	if (ret)
951 		goto error;
952 	ret = vpu_session_configure_codec(inst);
953 	if (ret)
954 		goto error;
955 
956 	inst->state = VPU_CODEC_STATE_CONFIGURED;
957 	/*vpu_iface_config_memory_resource*/
958 
959 	/*config enc expert mode parameter*/
960 	ret = vpu_iface_set_encode_params(inst, &venc->params, 1);
961 	if (ret)
962 		goto error;
963 
964 	ret = vpu_session_start(inst);
965 	if (ret)
966 		goto error;
967 	inst->state = VPU_CODEC_STATE_STARTED;
968 
969 	venc->bitrate_change = false;
970 	venc->input_ready = true;
971 	venc->frame_count = 0;
972 	venc->encode_count = 0;
973 	venc->ready_count = 0;
974 	venc->stopped = false;
975 	vpu_process_output_buffer(inst);
976 	if (venc->frame_count == 0)
977 		dev_err(inst->dev, "[%d] there is no input when starting\n", inst->id);
978 
979 	return 0;
980 error:
981 	venc_set_enable(venc, type, 0);
982 	inst->state = VPU_CODEC_STATE_DEINIT;
983 
984 	vpu_free_dma(&inst->stream_buffer);
985 	return ret;
986 }
987 
988 static void venc_cleanup_mem_resource(struct vpu_inst *inst)
989 {
990 	struct venc_t *venc;
991 	u32 i;
992 
993 	venc = inst->priv;
994 
995 	for (i = 0; i < ARRAY_SIZE(venc->enc); i++)
996 		vpu_free_dma(&venc->enc[i]);
997 	for (i = 0; i < ARRAY_SIZE(venc->ref); i++)
998 		vpu_free_dma(&venc->ref[i]);
999 }
1000 
1001 static void venc_request_mem_resource(struct vpu_inst *inst,
1002 				      u32 enc_frame_size,
1003 				      u32 enc_frame_num,
1004 				      u32 ref_frame_size,
1005 				      u32 ref_frame_num,
1006 				      u32 act_frame_size,
1007 				      u32 act_frame_num)
1008 {
1009 	struct venc_t *venc;
1010 	u32 i;
1011 	int ret;
1012 
1013 	venc = inst->priv;
1014 	if (enc_frame_num > ARRAY_SIZE(venc->enc)) {
1015 		dev_err(inst->dev, "[%d] enc num(%d) is out of range\n", inst->id, enc_frame_num);
1016 		return;
1017 	}
1018 	if (ref_frame_num > ARRAY_SIZE(venc->ref)) {
1019 		dev_err(inst->dev, "[%d] ref num(%d) is out of range\n", inst->id, ref_frame_num);
1020 		return;
1021 	}
1022 	if (act_frame_num > ARRAY_SIZE(venc->act)) {
1023 		dev_err(inst->dev, "[%d] act num(%d) is out of range\n", inst->id, act_frame_num);
1024 		return;
1025 	}
1026 
1027 	for (i = 0; i < enc_frame_num; i++) {
1028 		venc->enc[i].length = enc_frame_size;
1029 		ret = vpu_alloc_dma(inst->core, &venc->enc[i]);
1030 		if (ret) {
1031 			venc_cleanup_mem_resource(inst);
1032 			return;
1033 		}
1034 	}
1035 	for (i = 0; i < ref_frame_num; i++) {
1036 		venc->ref[i].length = ref_frame_size;
1037 		ret = vpu_alloc_dma(inst->core, &venc->ref[i]);
1038 		if (ret) {
1039 			venc_cleanup_mem_resource(inst);
1040 			return;
1041 		}
1042 	}
1043 	if (act_frame_num != 1 || act_frame_size > inst->act.length) {
1044 		venc_cleanup_mem_resource(inst);
1045 		return;
1046 	}
1047 	venc->act[0].length = act_frame_size;
1048 	venc->act[0].phys = inst->act.phys;
1049 	venc->act[0].virt = inst->act.virt;
1050 
1051 	for (i = 0; i < enc_frame_num; i++)
1052 		vpu_iface_config_memory_resource(inst, MEM_RES_ENC, i, &venc->enc[i]);
1053 	for (i = 0; i < ref_frame_num; i++)
1054 		vpu_iface_config_memory_resource(inst, MEM_RES_REF, i, &venc->ref[i]);
1055 	for (i = 0; i < act_frame_num; i++)
1056 		vpu_iface_config_memory_resource(inst, MEM_RES_ACT, i, &venc->act[i]);
1057 }
1058 
1059 static void venc_cleanup_frames(struct venc_t *venc)
1060 {
1061 	struct venc_frame_t *frame;
1062 	struct venc_frame_t *tmp;
1063 
1064 	list_for_each_entry_safe(frame, tmp, &venc->frames, list) {
1065 		list_del_init(&frame->list);
1066 		vfree(frame);
1067 	}
1068 }
1069 
1070 static int venc_stop_session(struct vpu_inst *inst, u32 type)
1071 {
1072 	struct venc_t *venc = inst->priv;
1073 
1074 	venc_set_enable(venc, type, 0);
1075 	if (venc->enable & VENC_ENABLE_MASK)
1076 		return 0;
1077 
1078 	if (inst->state == VPU_CODEC_STATE_DEINIT)
1079 		return 0;
1080 
1081 	if (inst->state != VPU_CODEC_STATE_STOP)
1082 		venc_request_eos(inst);
1083 
1084 	call_void_vop(inst, wait_prepare);
1085 	if (!wait_event_timeout(venc->wq, venc->stopped, VPU_TIMEOUT)) {
1086 		set_bit(inst->id, &inst->core->hang_mask);
1087 		vpu_session_debug(inst);
1088 	}
1089 	call_void_vop(inst, wait_finish);
1090 
1091 	inst->state = VPU_CODEC_STATE_DEINIT;
1092 	venc_cleanup_frames(inst->priv);
1093 	vpu_free_dma(&inst->stream_buffer);
1094 	venc_cleanup_mem_resource(inst);
1095 
1096 	return 0;
1097 }
1098 
1099 static int venc_process_output(struct vpu_inst *inst, struct vb2_buffer *vb)
1100 {
1101 	struct venc_t *venc = inst->priv;
1102 	struct vb2_v4l2_buffer *vbuf;
1103 	u32 flags;
1104 
1105 	if (inst->state == VPU_CODEC_STATE_DEINIT)
1106 		return -EINVAL;
1107 
1108 	vbuf = to_vb2_v4l2_buffer(vb);
1109 	if (inst->state == VPU_CODEC_STATE_STARTED)
1110 		inst->state = VPU_CODEC_STATE_ACTIVE;
1111 
1112 	flags = vbuf->flags;
1113 	if (venc->request_key_frame) {
1114 		vbuf->flags |= V4L2_BUF_FLAG_KEYFRAME;
1115 		venc->request_key_frame = 0;
1116 	}
1117 	if (venc->bitrate_change) {
1118 		vpu_session_update_parameters(inst, &venc->params);
1119 		venc->bitrate_change = false;
1120 	}
1121 	dev_dbg(inst->dev, "[%d][INPUT  TS]%32lld\n", inst->id, vb->timestamp);
1122 	vpu_iface_input_frame(inst, vb);
1123 	vbuf->flags = flags;
1124 	venc->input_ready = false;
1125 	venc->frame_count++;
1126 	vpu_set_buffer_state(vbuf, VPU_BUF_STATE_INUSE);
1127 
1128 	return 0;
1129 }
1130 
1131 static int venc_process_capture(struct vpu_inst *inst, struct vb2_buffer *vb)
1132 {
1133 	struct venc_t *venc;
1134 	struct venc_frame_t *frame = NULL;
1135 	struct vb2_v4l2_buffer *vbuf;
1136 	int ret;
1137 
1138 	venc = inst->priv;
1139 	if (list_empty(&venc->frames))
1140 		return -EINVAL;
1141 
1142 	frame = list_first_entry(&venc->frames, struct venc_frame_t, list);
1143 	vbuf = to_vb2_v4l2_buffer(vb);
1144 	v4l2_m2m_dst_buf_remove_by_buf(inst->fh.m2m_ctx, vbuf);
1145 	ret = venc_get_one_encoded_frame(inst, frame, vbuf);
1146 	if (ret)
1147 		return ret;
1148 
1149 	list_del_init(&frame->list);
1150 	vfree(frame);
1151 	return 0;
1152 }
1153 
1154 static void venc_on_queue_empty(struct vpu_inst *inst, u32 type)
1155 {
1156 	struct venc_t *venc = inst->priv;
1157 
1158 	if (V4L2_TYPE_IS_OUTPUT(type))
1159 		return;
1160 
1161 	if (venc->stopped)
1162 		venc_set_last_buffer_dequeued(inst);
1163 }
1164 
1165 static int venc_get_debug_info(struct vpu_inst *inst, char *str, u32 size, u32 i)
1166 {
1167 	struct venc_t *venc = inst->priv;
1168 	int num = -1;
1169 
1170 	switch (i) {
1171 	case 0:
1172 		num = scnprintf(str, size, "profile = %d\n", venc->params.profile);
1173 		break;
1174 	case 1:
1175 		num = scnprintf(str, size, "level = %d\n", venc->params.level);
1176 		break;
1177 	case 2:
1178 		num = scnprintf(str, size, "fps = %d/%d\n",
1179 				venc->params.frame_rate.numerator,
1180 				venc->params.frame_rate.denominator);
1181 		break;
1182 	case 3:
1183 		num = scnprintf(str, size, "%d x %d -> %d x %d\n",
1184 				venc->params.src_width,
1185 				venc->params.src_height,
1186 				venc->params.out_width,
1187 				venc->params.out_height);
1188 		break;
1189 	case 4:
1190 		num = scnprintf(str, size, "(%d, %d)  %d x %d\n",
1191 				venc->params.crop.left,
1192 				venc->params.crop.top,
1193 				venc->params.crop.width,
1194 				venc->params.crop.height);
1195 		break;
1196 	case 5:
1197 		num = scnprintf(str, size,
1198 				"enable = 0x%x, input = %d, encode = %d, ready = %d, stopped = %d\n",
1199 				venc->enable,
1200 				venc->frame_count, venc->encode_count,
1201 				venc->ready_count,
1202 				venc->stopped);
1203 		break;
1204 	case 6:
1205 		num = scnprintf(str, size, "gop = %d\n", venc->params.gop_length);
1206 		break;
1207 	case 7:
1208 		num = scnprintf(str, size, "bframes = %d\n", venc->params.bframes);
1209 		break;
1210 	case 8:
1211 		num = scnprintf(str, size, "rc: %s, mode = %d, bitrate = %d(%d), qp = %d\n",
1212 				venc->params.rc_enable ? "enable" : "disable",
1213 				venc->params.rc_mode,
1214 				venc->params.bitrate,
1215 				venc->params.bitrate_max,
1216 				venc->params.i_frame_qp);
1217 		break;
1218 	case 9:
1219 		num = scnprintf(str, size, "sar: enable = %d, idc = %d, %d x %d\n",
1220 				venc->params.sar.enable,
1221 				venc->params.sar.idc,
1222 				venc->params.sar.width,
1223 				venc->params.sar.height);
1224 
1225 		break;
1226 	case 10:
1227 		num = scnprintf(str, size,
1228 				"colorspace: primaries = %d, transfer = %d, matrix = %d, full_range = %d\n",
1229 				venc->params.color.primaries,
1230 				venc->params.color.transfer,
1231 				venc->params.color.matrix,
1232 				venc->params.color.full_range);
1233 		break;
1234 	case 11:
1235 		num = scnprintf(str, size, "skipped: count = %d, bytes = %d\n",
1236 				venc->skipped_count, venc->skipped_bytes);
1237 		break;
1238 	default:
1239 		break;
1240 	}
1241 
1242 	return num;
1243 }
1244 
1245 static struct vpu_inst_ops venc_inst_ops = {
1246 	.ctrl_init = venc_ctrl_init,
1247 	.check_ready = venc_check_ready,
1248 	.input_done = venc_input_done,
1249 	.get_one_frame = venc_frame_encoded,
1250 	.stop_done = venc_stop_done,
1251 	.event_notify = venc_event_notify,
1252 	.release = venc_release,
1253 	.cleanup = venc_cleanup,
1254 	.start = venc_start_session,
1255 	.mem_request = venc_request_mem_resource,
1256 	.stop = venc_stop_session,
1257 	.process_output = venc_process_output,
1258 	.process_capture = venc_process_capture,
1259 	.on_queue_empty = venc_on_queue_empty,
1260 	.get_debug_info = venc_get_debug_info,
1261 	.wait_prepare = vpu_inst_unlock,
1262 	.wait_finish = vpu_inst_lock,
1263 };
1264 
1265 static void venc_init(struct file *file)
1266 {
1267 	struct vpu_inst *inst = to_inst(file);
1268 	struct venc_t *venc;
1269 	struct v4l2_format f;
1270 	struct v4l2_streamparm parm;
1271 
1272 	venc = inst->priv;
1273 	venc->params.qp_min = 1;
1274 	venc->params.qp_max = 51;
1275 	venc->params.qp_min_i = 1;
1276 	venc->params.qp_max_i = 51;
1277 	venc->params.bitrate_min = BITRATE_MIN;
1278 
1279 	memset(&f, 0, sizeof(f));
1280 	f.type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE;
1281 	f.fmt.pix_mp.pixelformat = V4L2_PIX_FMT_NV12M;
1282 	f.fmt.pix_mp.width = 1280;
1283 	f.fmt.pix_mp.height = 720;
1284 	f.fmt.pix_mp.field = V4L2_FIELD_NONE;
1285 	f.fmt.pix_mp.colorspace = V4L2_COLORSPACE_REC709;
1286 	venc_s_fmt(file, &inst->fh, &f);
1287 
1288 	memset(&f, 0, sizeof(f));
1289 	f.type = V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE;
1290 	f.fmt.pix_mp.pixelformat = V4L2_PIX_FMT_H264;
1291 	f.fmt.pix_mp.width = 1280;
1292 	f.fmt.pix_mp.height = 720;
1293 	f.fmt.pix_mp.field = V4L2_FIELD_NONE;
1294 	venc_s_fmt(file, &inst->fh, &f);
1295 
1296 	memset(&parm, 0, sizeof(parm));
1297 	parm.type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE;
1298 	parm.parm.capture.timeperframe.numerator = 1;
1299 	parm.parm.capture.timeperframe.denominator = 30;
1300 	venc_s_parm(file, &inst->fh, &parm);
1301 }
1302 
1303 static int venc_open(struct file *file)
1304 {
1305 	struct vpu_inst *inst;
1306 	struct venc_t *venc;
1307 	int ret;
1308 
1309 	inst = vzalloc(sizeof(*inst));
1310 	if (!inst)
1311 		return -ENOMEM;
1312 
1313 	venc = vzalloc(sizeof(*venc));
1314 	if (!venc) {
1315 		vfree(inst);
1316 		return -ENOMEM;
1317 	}
1318 
1319 	inst->ops = &venc_inst_ops;
1320 	inst->formats = venc_formats;
1321 	inst->type = VPU_CORE_TYPE_ENC;
1322 	inst->priv = venc;
1323 	INIT_LIST_HEAD(&venc->frames);
1324 	init_waitqueue_head(&venc->wq);
1325 
1326 	ret = vpu_v4l2_open(file, inst);
1327 	if (ret)
1328 		return ret;
1329 
1330 	inst->min_buffer_out = VENC_MIN_BUFFER_OUT;
1331 	inst->min_buffer_cap = VENC_MIN_BUFFER_CAP;
1332 	venc_init(file);
1333 
1334 	return 0;
1335 }
1336 
1337 static const struct v4l2_file_operations venc_fops = {
1338 	.owner = THIS_MODULE,
1339 	.open = venc_open,
1340 	.release = vpu_v4l2_close,
1341 	.unlocked_ioctl = video_ioctl2,
1342 	.poll = v4l2_m2m_fop_poll,
1343 	.mmap = v4l2_m2m_fop_mmap,
1344 };
1345 
1346 const struct v4l2_ioctl_ops *venc_get_ioctl_ops(void)
1347 {
1348 	return &venc_ioctl_ops;
1349 }
1350 
1351 const struct v4l2_file_operations *venc_get_fops(void)
1352 {
1353 	return &venc_fops;
1354 }
1355