1 // SPDX-License-Identifier: GPL-2.0-only
2 /*
3  * Copyright (c) 2012-2016, The Linux Foundation. All rights reserved.
4  * Copyright (C) 2017 Linaro Ltd.
5  */
6 #include <linux/clk.h>
7 #include <linux/module.h>
8 #include <linux/mod_devicetable.h>
9 #include <linux/platform_device.h>
10 #include <linux/pm_runtime.h>
11 #include <linux/slab.h>
12 #include <media/v4l2-mem2mem.h>
13 #include <media/videobuf2-dma-contig.h>
14 #include <media/v4l2-ioctl.h>
15 #include <media/v4l2-event.h>
16 #include <media/v4l2-ctrls.h>
17 
18 #include "hfi_venus_io.h"
19 #include "hfi_parser.h"
20 #include "core.h"
21 #include "helpers.h"
22 #include "venc.h"
23 #include "pm_helpers.h"
24 
25 #define NUM_B_FRAMES_MAX	4
26 
27 /*
28  * Three resons to keep MPLANE formats (despite that the number of planes
29  * currently is one):
30  * - the MPLANE formats allow only one plane to be used
31  * - the downstream driver use MPLANE formats too
32  * - future firmware versions could add support for >1 planes
33  */
34 static const struct venus_format venc_formats[] = {
35 	{
36 		.pixfmt = V4L2_PIX_FMT_NV12,
37 		.num_planes = 1,
38 		.type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE,
39 	}, {
40 		.pixfmt = V4L2_PIX_FMT_MPEG4,
41 		.num_planes = 1,
42 		.type = V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE,
43 	}, {
44 		.pixfmt = V4L2_PIX_FMT_H263,
45 		.num_planes = 1,
46 		.type = V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE,
47 	}, {
48 		.pixfmt = V4L2_PIX_FMT_H264,
49 		.num_planes = 1,
50 		.type = V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE,
51 	}, {
52 		.pixfmt = V4L2_PIX_FMT_VP8,
53 		.num_planes = 1,
54 		.type = V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE,
55 	}, {
56 		.pixfmt = V4L2_PIX_FMT_HEVC,
57 		.num_planes = 1,
58 		.type = V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE,
59 	},
60 };
61 
62 static const struct venus_format *
63 find_format(struct venus_inst *inst, u32 pixfmt, u32 type)
64 {
65 	const struct venus_format *fmt = venc_formats;
66 	unsigned int size = ARRAY_SIZE(venc_formats);
67 	unsigned int i;
68 
69 	for (i = 0; i < size; i++) {
70 		if (fmt[i].pixfmt == pixfmt)
71 			break;
72 	}
73 
74 	if (i == size || fmt[i].type != type)
75 		return NULL;
76 
77 	if (type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE &&
78 	    !venus_helper_check_codec(inst, fmt[i].pixfmt))
79 		return NULL;
80 
81 	return &fmt[i];
82 }
83 
84 static const struct venus_format *
85 find_format_by_index(struct venus_inst *inst, unsigned int index, u32 type)
86 {
87 	const struct venus_format *fmt = venc_formats;
88 	unsigned int size = ARRAY_SIZE(venc_formats);
89 	unsigned int i, k = 0;
90 
91 	if (index > size)
92 		return NULL;
93 
94 	for (i = 0; i < size; i++) {
95 		bool valid;
96 
97 		if (fmt[i].type != type)
98 			continue;
99 		valid = type != V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE ||
100 			venus_helper_check_codec(inst, fmt[i].pixfmt);
101 		if (k == index && valid)
102 			break;
103 		if (valid)
104 			k++;
105 	}
106 
107 	if (i == size)
108 		return NULL;
109 
110 	return &fmt[i];
111 }
112 
113 static int venc_v4l2_to_hfi(int id, int value)
114 {
115 	switch (id) {
116 	case V4L2_CID_MPEG_VIDEO_H264_ENTROPY_MODE:
117 		switch (value) {
118 		case V4L2_MPEG_VIDEO_H264_ENTROPY_MODE_CAVLC:
119 		default:
120 			return HFI_H264_ENTROPY_CAVLC;
121 		case V4L2_MPEG_VIDEO_H264_ENTROPY_MODE_CABAC:
122 			return HFI_H264_ENTROPY_CABAC;
123 		}
124 	case V4L2_CID_MPEG_VIDEO_H264_LOOP_FILTER_MODE:
125 		switch (value) {
126 		case V4L2_MPEG_VIDEO_H264_LOOP_FILTER_MODE_ENABLED:
127 		default:
128 			return HFI_H264_DB_MODE_ALL_BOUNDARY;
129 		case V4L2_MPEG_VIDEO_H264_LOOP_FILTER_MODE_DISABLED:
130 			return HFI_H264_DB_MODE_DISABLE;
131 		case V4L2_MPEG_VIDEO_H264_LOOP_FILTER_MODE_DISABLED_AT_SLICE_BOUNDARY:
132 			return HFI_H264_DB_MODE_SKIP_SLICE_BOUNDARY;
133 		}
134 	}
135 
136 	return 0;
137 }
138 
139 static int
140 venc_querycap(struct file *file, void *fh, struct v4l2_capability *cap)
141 {
142 	strscpy(cap->driver, "qcom-venus", sizeof(cap->driver));
143 	strscpy(cap->card, "Qualcomm Venus video encoder", sizeof(cap->card));
144 	strscpy(cap->bus_info, "platform:qcom-venus", sizeof(cap->bus_info));
145 
146 	return 0;
147 }
148 
149 static int venc_enum_fmt(struct file *file, void *fh, struct v4l2_fmtdesc *f)
150 {
151 	struct venus_inst *inst = to_inst(file);
152 	const struct venus_format *fmt;
153 
154 	fmt = find_format_by_index(inst, f->index, f->type);
155 
156 	memset(f->reserved, 0, sizeof(f->reserved));
157 
158 	if (!fmt)
159 		return -EINVAL;
160 
161 	f->pixelformat = fmt->pixfmt;
162 
163 	return 0;
164 }
165 
166 static const struct venus_format *
167 venc_try_fmt_common(struct venus_inst *inst, struct v4l2_format *f)
168 {
169 	struct v4l2_pix_format_mplane *pixmp = &f->fmt.pix_mp;
170 	struct v4l2_plane_pix_format *pfmt = pixmp->plane_fmt;
171 	const struct venus_format *fmt;
172 	u32 sizeimage;
173 
174 	memset(pfmt[0].reserved, 0, sizeof(pfmt[0].reserved));
175 	memset(pixmp->reserved, 0, sizeof(pixmp->reserved));
176 
177 	fmt = find_format(inst, pixmp->pixelformat, f->type);
178 	if (!fmt) {
179 		if (f->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE)
180 			pixmp->pixelformat = V4L2_PIX_FMT_H264;
181 		else if (f->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE)
182 			pixmp->pixelformat = V4L2_PIX_FMT_NV12;
183 		else
184 			return NULL;
185 		fmt = find_format(inst, pixmp->pixelformat, f->type);
186 		if (!fmt)
187 			return NULL;
188 	}
189 
190 	pixmp->width = clamp(pixmp->width, frame_width_min(inst),
191 			     frame_width_max(inst));
192 	pixmp->height = clamp(pixmp->height, frame_height_min(inst),
193 			      frame_height_max(inst));
194 
195 	if (f->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) {
196 		pixmp->width = ALIGN(pixmp->width, 128);
197 		pixmp->height = ALIGN(pixmp->height, 32);
198 	}
199 
200 	pixmp->width = ALIGN(pixmp->width, 2);
201 	pixmp->height = ALIGN(pixmp->height, 2);
202 
203 	if (pixmp->field == V4L2_FIELD_ANY)
204 		pixmp->field = V4L2_FIELD_NONE;
205 	pixmp->num_planes = fmt->num_planes;
206 	pixmp->flags = 0;
207 
208 	sizeimage = venus_helper_get_framesz(pixmp->pixelformat,
209 					     pixmp->width,
210 					     pixmp->height);
211 	pfmt[0].sizeimage = max(ALIGN(pfmt[0].sizeimage, SZ_4K), sizeimage);
212 
213 	if (f->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE)
214 		pfmt[0].bytesperline = ALIGN(pixmp->width, 128);
215 	else
216 		pfmt[0].bytesperline = 0;
217 
218 	return fmt;
219 }
220 
221 static int venc_try_fmt(struct file *file, void *fh, struct v4l2_format *f)
222 {
223 	struct venus_inst *inst = to_inst(file);
224 
225 	venc_try_fmt_common(inst, f);
226 
227 	return 0;
228 }
229 
230 static int venc_s_fmt(struct file *file, void *fh, struct v4l2_format *f)
231 {
232 	struct venus_inst *inst = to_inst(file);
233 	struct v4l2_pix_format_mplane *pixmp = &f->fmt.pix_mp;
234 	struct v4l2_pix_format_mplane orig_pixmp;
235 	const struct venus_format *fmt;
236 	struct v4l2_format format;
237 	u32 pixfmt_out = 0, pixfmt_cap = 0;
238 	struct vb2_queue *q;
239 
240 	q = v4l2_m2m_get_vq(inst->m2m_ctx, f->type);
241 	if (!q)
242 		return -EINVAL;
243 
244 	if (vb2_is_busy(q))
245 		return -EBUSY;
246 
247 	orig_pixmp = *pixmp;
248 
249 	fmt = venc_try_fmt_common(inst, f);
250 	if (!fmt)
251 		return -EINVAL;
252 
253 	if (f->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) {
254 		pixfmt_out = pixmp->pixelformat;
255 		pixfmt_cap = inst->fmt_cap->pixfmt;
256 	} else if (f->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) {
257 		pixfmt_cap = pixmp->pixelformat;
258 		pixfmt_out = inst->fmt_out->pixfmt;
259 	}
260 
261 	memset(&format, 0, sizeof(format));
262 
263 	format.type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE;
264 	format.fmt.pix_mp.pixelformat = pixfmt_out;
265 	format.fmt.pix_mp.width = orig_pixmp.width;
266 	format.fmt.pix_mp.height = orig_pixmp.height;
267 	venc_try_fmt_common(inst, &format);
268 
269 	if (f->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) {
270 		inst->out_width = format.fmt.pix_mp.width;
271 		inst->out_height = format.fmt.pix_mp.height;
272 		inst->colorspace = pixmp->colorspace;
273 		inst->ycbcr_enc = pixmp->ycbcr_enc;
274 		inst->quantization = pixmp->quantization;
275 		inst->xfer_func = pixmp->xfer_func;
276 	}
277 
278 	memset(&format, 0, sizeof(format));
279 
280 	format.type = V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE;
281 	format.fmt.pix_mp.pixelformat = pixfmt_cap;
282 	format.fmt.pix_mp.width = orig_pixmp.width;
283 	format.fmt.pix_mp.height = orig_pixmp.height;
284 	venc_try_fmt_common(inst, &format);
285 
286 	inst->width = format.fmt.pix_mp.width;
287 	inst->height = format.fmt.pix_mp.height;
288 
289 	if (f->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE)
290 		inst->fmt_out = fmt;
291 	else if (f->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) {
292 		inst->fmt_cap = fmt;
293 		inst->output_buf_size = pixmp->plane_fmt[0].sizeimage;
294 	}
295 
296 	return 0;
297 }
298 
299 static int venc_g_fmt(struct file *file, void *fh, struct v4l2_format *f)
300 {
301 	struct v4l2_pix_format_mplane *pixmp = &f->fmt.pix_mp;
302 	struct venus_inst *inst = to_inst(file);
303 	const struct venus_format *fmt;
304 
305 	if (f->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE)
306 		fmt = inst->fmt_cap;
307 	else if (f->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE)
308 		fmt = inst->fmt_out;
309 	else
310 		return -EINVAL;
311 
312 	pixmp->pixelformat = fmt->pixfmt;
313 
314 	if (f->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) {
315 		pixmp->width = inst->width;
316 		pixmp->height = inst->height;
317 		pixmp->colorspace = inst->colorspace;
318 		pixmp->ycbcr_enc = inst->ycbcr_enc;
319 		pixmp->quantization = inst->quantization;
320 		pixmp->xfer_func = inst->xfer_func;
321 	} else if (f->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) {
322 		pixmp->width = inst->out_width;
323 		pixmp->height = inst->out_height;
324 	}
325 
326 	venc_try_fmt_common(inst, f);
327 
328 	return 0;
329 }
330 
331 static int
332 venc_g_selection(struct file *file, void *fh, struct v4l2_selection *s)
333 {
334 	struct venus_inst *inst = to_inst(file);
335 
336 	if (s->type != V4L2_BUF_TYPE_VIDEO_OUTPUT)
337 		return -EINVAL;
338 
339 	switch (s->target) {
340 	case V4L2_SEL_TGT_CROP_DEFAULT:
341 	case V4L2_SEL_TGT_CROP_BOUNDS:
342 		s->r.width = inst->out_width;
343 		s->r.height = inst->out_height;
344 		break;
345 	case V4L2_SEL_TGT_CROP:
346 		s->r.width = inst->width;
347 		s->r.height = inst->height;
348 		break;
349 	default:
350 		return -EINVAL;
351 	}
352 
353 	s->r.top = 0;
354 	s->r.left = 0;
355 
356 	return 0;
357 }
358 
359 static int
360 venc_s_selection(struct file *file, void *fh, struct v4l2_selection *s)
361 {
362 	struct venus_inst *inst = to_inst(file);
363 
364 	if (s->type != V4L2_BUF_TYPE_VIDEO_OUTPUT)
365 		return -EINVAL;
366 
367 	if (s->r.width > inst->out_width ||
368 	    s->r.height > inst->out_height)
369 		return -EINVAL;
370 
371 	s->r.width = ALIGN(s->r.width, 2);
372 	s->r.height = ALIGN(s->r.height, 2);
373 
374 	switch (s->target) {
375 	case V4L2_SEL_TGT_CROP:
376 		s->r.top = 0;
377 		s->r.left = 0;
378 		inst->width = s->r.width;
379 		inst->height = s->r.height;
380 		break;
381 	default:
382 		return -EINVAL;
383 	}
384 
385 	return 0;
386 }
387 
388 static int venc_s_parm(struct file *file, void *fh, struct v4l2_streamparm *a)
389 {
390 	struct venus_inst *inst = to_inst(file);
391 	struct v4l2_outputparm *out = &a->parm.output;
392 	struct v4l2_fract *timeperframe = &out->timeperframe;
393 	u64 us_per_frame, fps;
394 
395 	if (a->type != V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE &&
396 	    a->type != V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE)
397 		return -EINVAL;
398 
399 	memset(out->reserved, 0, sizeof(out->reserved));
400 
401 	if (!timeperframe->denominator)
402 		timeperframe->denominator = inst->timeperframe.denominator;
403 	if (!timeperframe->numerator)
404 		timeperframe->numerator = inst->timeperframe.numerator;
405 
406 	out->capability = V4L2_CAP_TIMEPERFRAME;
407 
408 	us_per_frame = timeperframe->numerator * (u64)USEC_PER_SEC;
409 	do_div(us_per_frame, timeperframe->denominator);
410 
411 	if (!us_per_frame)
412 		return -EINVAL;
413 
414 	fps = (u64)USEC_PER_SEC;
415 	do_div(fps, us_per_frame);
416 
417 	inst->timeperframe = *timeperframe;
418 	inst->fps = fps;
419 
420 	return 0;
421 }
422 
423 static int venc_g_parm(struct file *file, void *fh, struct v4l2_streamparm *a)
424 {
425 	struct venus_inst *inst = to_inst(file);
426 
427 	if (a->type != V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE &&
428 	    a->type != V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE)
429 		return -EINVAL;
430 
431 	a->parm.output.capability |= V4L2_CAP_TIMEPERFRAME;
432 	a->parm.output.timeperframe = inst->timeperframe;
433 
434 	return 0;
435 }
436 
437 static int venc_enum_framesizes(struct file *file, void *fh,
438 				struct v4l2_frmsizeenum *fsize)
439 {
440 	struct venus_inst *inst = to_inst(file);
441 	const struct venus_format *fmt;
442 
443 	fsize->type = V4L2_FRMSIZE_TYPE_STEPWISE;
444 
445 	fmt = find_format(inst, fsize->pixel_format,
446 			  V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE);
447 	if (!fmt) {
448 		fmt = find_format(inst, fsize->pixel_format,
449 				  V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE);
450 		if (!fmt)
451 			return -EINVAL;
452 	}
453 
454 	if (fsize->index)
455 		return -EINVAL;
456 
457 	fsize->stepwise.min_width = frame_width_min(inst);
458 	fsize->stepwise.max_width = frame_width_max(inst);
459 	fsize->stepwise.step_width = frame_width_step(inst);
460 	fsize->stepwise.min_height = frame_height_min(inst);
461 	fsize->stepwise.max_height = frame_height_max(inst);
462 	fsize->stepwise.step_height = frame_height_step(inst);
463 
464 	return 0;
465 }
466 
467 static int venc_enum_frameintervals(struct file *file, void *fh,
468 				    struct v4l2_frmivalenum *fival)
469 {
470 	struct venus_inst *inst = to_inst(file);
471 	const struct venus_format *fmt;
472 	unsigned int framerate_factor = 1;
473 
474 	fival->type = V4L2_FRMIVAL_TYPE_STEPWISE;
475 
476 	fmt = find_format(inst, fival->pixel_format,
477 			  V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE);
478 	if (!fmt) {
479 		fmt = find_format(inst, fival->pixel_format,
480 				  V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE);
481 		if (!fmt)
482 			return -EINVAL;
483 	}
484 
485 	if (fival->index)
486 		return -EINVAL;
487 
488 	if (!fival->width || !fival->height)
489 		return -EINVAL;
490 
491 	if (fival->width > frame_width_max(inst) ||
492 	    fival->width < frame_width_min(inst) ||
493 	    fival->height > frame_height_max(inst) ||
494 	    fival->height < frame_height_min(inst))
495 		return -EINVAL;
496 
497 	if (IS_V1(inst->core)) {
498 		/* framerate is reported in 1/65535 fps unit */
499 		framerate_factor = (1 << 16);
500 	}
501 
502 	fival->stepwise.min.numerator = 1;
503 	fival->stepwise.min.denominator = frate_max(inst) / framerate_factor;
504 	fival->stepwise.max.numerator = 1;
505 	fival->stepwise.max.denominator = frate_min(inst) / framerate_factor;
506 	fival->stepwise.step.numerator = 1;
507 	fival->stepwise.step.denominator = frate_max(inst) / framerate_factor;
508 
509 	return 0;
510 }
511 
512 static const struct v4l2_ioctl_ops venc_ioctl_ops = {
513 	.vidioc_querycap = venc_querycap,
514 	.vidioc_enum_fmt_vid_cap = venc_enum_fmt,
515 	.vidioc_enum_fmt_vid_out = venc_enum_fmt,
516 	.vidioc_s_fmt_vid_cap_mplane = venc_s_fmt,
517 	.vidioc_s_fmt_vid_out_mplane = venc_s_fmt,
518 	.vidioc_g_fmt_vid_cap_mplane = venc_g_fmt,
519 	.vidioc_g_fmt_vid_out_mplane = venc_g_fmt,
520 	.vidioc_try_fmt_vid_cap_mplane = venc_try_fmt,
521 	.vidioc_try_fmt_vid_out_mplane = venc_try_fmt,
522 	.vidioc_g_selection = venc_g_selection,
523 	.vidioc_s_selection = venc_s_selection,
524 	.vidioc_reqbufs = v4l2_m2m_ioctl_reqbufs,
525 	.vidioc_querybuf = v4l2_m2m_ioctl_querybuf,
526 	.vidioc_create_bufs = v4l2_m2m_ioctl_create_bufs,
527 	.vidioc_prepare_buf = v4l2_m2m_ioctl_prepare_buf,
528 	.vidioc_qbuf = v4l2_m2m_ioctl_qbuf,
529 	.vidioc_expbuf = v4l2_m2m_ioctl_expbuf,
530 	.vidioc_dqbuf = v4l2_m2m_ioctl_dqbuf,
531 	.vidioc_streamon = v4l2_m2m_ioctl_streamon,
532 	.vidioc_streamoff = v4l2_m2m_ioctl_streamoff,
533 	.vidioc_s_parm = venc_s_parm,
534 	.vidioc_g_parm = venc_g_parm,
535 	.vidioc_enum_framesizes = venc_enum_framesizes,
536 	.vidioc_enum_frameintervals = venc_enum_frameintervals,
537 	.vidioc_subscribe_event = v4l2_ctrl_subscribe_event,
538 	.vidioc_unsubscribe_event = v4l2_event_unsubscribe,
539 };
540 
541 static int venc_pm_get(struct venus_inst *inst)
542 {
543 	struct venus_core *core = inst->core;
544 	struct device *dev = core->dev_enc;
545 	int ret;
546 
547 	mutex_lock(&core->pm_lock);
548 	ret = pm_runtime_resume_and_get(dev);
549 	mutex_unlock(&core->pm_lock);
550 
551 	return ret < 0 ? ret : 0;
552 }
553 
554 static int venc_pm_put(struct venus_inst *inst, bool autosuspend)
555 {
556 	struct venus_core *core = inst->core;
557 	struct device *dev = core->dev_enc;
558 	int ret;
559 
560 	mutex_lock(&core->pm_lock);
561 
562 	if (autosuspend)
563 		ret = pm_runtime_put_autosuspend(dev);
564 	else
565 		ret = pm_runtime_put_sync(dev);
566 
567 	mutex_unlock(&core->pm_lock);
568 
569 	return ret < 0 ? ret : 0;
570 }
571 
572 static int venc_pm_get_put(struct venus_inst *inst)
573 {
574 	struct venus_core *core = inst->core;
575 	struct device *dev = core->dev_enc;
576 	int ret = 0;
577 
578 	mutex_lock(&core->pm_lock);
579 
580 	if (pm_runtime_suspended(dev)) {
581 		ret = pm_runtime_resume_and_get(dev);
582 		if (ret < 0)
583 			goto error;
584 
585 		ret = pm_runtime_put_autosuspend(dev);
586 	}
587 
588 error:
589 	mutex_unlock(&core->pm_lock);
590 
591 	return ret < 0 ? ret : 0;
592 }
593 
594 static void venc_pm_touch(struct venus_inst *inst)
595 {
596 	pm_runtime_mark_last_busy(inst->core->dev_enc);
597 }
598 
599 static int venc_set_properties(struct venus_inst *inst)
600 {
601 	struct venc_controls *ctr = &inst->controls.enc;
602 	struct hfi_intra_period intra_period;
603 	struct hfi_framerate frate;
604 	struct hfi_bitrate brate;
605 	struct hfi_idr_period idrp;
606 	struct hfi_quantization quant;
607 	struct hfi_quantization_range quant_range;
608 	struct hfi_enable en;
609 	struct hfi_ltr_mode ltr_mode;
610 	struct hfi_intra_refresh intra_refresh = {};
611 	u32 ptype, rate_control, bitrate;
612 	u32 profile, level;
613 	int ret;
614 
615 	ret = venus_helper_set_work_mode(inst);
616 	if (ret)
617 		return ret;
618 
619 	ptype = HFI_PROPERTY_CONFIG_FRAME_RATE;
620 	frate.buffer_type = HFI_BUFFER_OUTPUT;
621 	frate.framerate = inst->fps * (1 << 16);
622 
623 	ret = hfi_session_set_property(inst, ptype, &frate);
624 	if (ret)
625 		return ret;
626 
627 	if (inst->fmt_cap->pixfmt == V4L2_PIX_FMT_H264) {
628 		struct hfi_h264_vui_timing_info info;
629 		struct hfi_h264_entropy_control entropy;
630 		struct hfi_h264_db_control deblock;
631 		struct hfi_h264_8x8_transform h264_transform;
632 
633 		ptype = HFI_PROPERTY_PARAM_VENC_H264_VUI_TIMING_INFO;
634 		info.enable = 1;
635 		info.fixed_framerate = 1;
636 		info.time_scale = NSEC_PER_SEC;
637 
638 		ret = hfi_session_set_property(inst, ptype, &info);
639 		if (ret)
640 			return ret;
641 
642 		ptype = HFI_PROPERTY_PARAM_VENC_H264_ENTROPY_CONTROL;
643 		entropy.entropy_mode = venc_v4l2_to_hfi(
644 					  V4L2_CID_MPEG_VIDEO_H264_ENTROPY_MODE,
645 					  ctr->h264_entropy_mode);
646 		entropy.cabac_model = HFI_H264_CABAC_MODEL_0;
647 
648 		ret = hfi_session_set_property(inst, ptype, &entropy);
649 		if (ret)
650 			return ret;
651 
652 		ptype = HFI_PROPERTY_PARAM_VENC_H264_DEBLOCK_CONTROL;
653 		deblock.mode = venc_v4l2_to_hfi(
654 				      V4L2_CID_MPEG_VIDEO_H264_LOOP_FILTER_MODE,
655 				      ctr->h264_loop_filter_mode);
656 		deblock.slice_alpha_offset = ctr->h264_loop_filter_alpha;
657 		deblock.slice_beta_offset = ctr->h264_loop_filter_beta;
658 
659 		ret = hfi_session_set_property(inst, ptype, &deblock);
660 		if (ret)
661 			return ret;
662 
663 		ptype = HFI_PROPERTY_PARAM_VENC_H264_TRANSFORM_8X8;
664 		h264_transform.enable_type = 0;
665 		if (ctr->profile.h264 == V4L2_MPEG_VIDEO_H264_PROFILE_HIGH ||
666 		    ctr->profile.h264 == V4L2_MPEG_VIDEO_H264_PROFILE_CONSTRAINED_HIGH)
667 			h264_transform.enable_type = ctr->h264_8x8_transform;
668 
669 		ret = hfi_session_set_property(inst, ptype, &h264_transform);
670 		if (ret)
671 			return ret;
672 
673 	}
674 
675 	if (inst->fmt_cap->pixfmt == V4L2_PIX_FMT_H264 ||
676 	    inst->fmt_cap->pixfmt == V4L2_PIX_FMT_HEVC) {
677 		/* IDR periodicity, n:
678 		 * n = 0 - only the first I-frame is IDR frame
679 		 * n = 1 - all I-frames will be IDR frames
680 		 * n > 1 - every n-th I-frame will be IDR frame
681 		 */
682 		ptype = HFI_PROPERTY_CONFIG_VENC_IDR_PERIOD;
683 		idrp.idr_period = 0;
684 		ret = hfi_session_set_property(inst, ptype, &idrp);
685 		if (ret)
686 			return ret;
687 	}
688 
689 	if (inst->fmt_cap->pixfmt == V4L2_PIX_FMT_HEVC) {
690 		struct hfi_hdr10_pq_sei hdr10;
691 		unsigned int c;
692 
693 		ptype = HFI_PROPERTY_PARAM_VENC_HDR10_PQ_SEI;
694 
695 		for (c = 0; c < 3; c++) {
696 			hdr10.mastering.display_primaries_x[c] =
697 				ctr->mastering.display_primaries_x[c];
698 			hdr10.mastering.display_primaries_y[c] =
699 				ctr->mastering.display_primaries_y[c];
700 		}
701 
702 		hdr10.mastering.white_point_x = ctr->mastering.white_point_x;
703 		hdr10.mastering.white_point_y = ctr->mastering.white_point_y;
704 		hdr10.mastering.max_display_mastering_luminance =
705 			ctr->mastering.max_display_mastering_luminance;
706 		hdr10.mastering.min_display_mastering_luminance =
707 			ctr->mastering.min_display_mastering_luminance;
708 
709 		hdr10.cll.max_content_light = ctr->cll.max_content_light_level;
710 		hdr10.cll.max_pic_average_light =
711 			ctr->cll.max_pic_average_light_level;
712 
713 		ret = hfi_session_set_property(inst, ptype, &hdr10);
714 		if (ret)
715 			return ret;
716 	}
717 
718 	if (ctr->num_b_frames) {
719 		u32 max_num_b_frames = NUM_B_FRAMES_MAX;
720 
721 		ptype = HFI_PROPERTY_PARAM_VENC_MAX_NUM_B_FRAMES;
722 		ret = hfi_session_set_property(inst, ptype, &max_num_b_frames);
723 		if (ret)
724 			return ret;
725 	}
726 
727 	ptype = HFI_PROPERTY_CONFIG_VENC_INTRA_PERIOD;
728 	intra_period.pframes = ctr->num_p_frames;
729 	intra_period.bframes = ctr->num_b_frames;
730 
731 	ret = hfi_session_set_property(inst, ptype, &intra_period);
732 	if (ret)
733 		return ret;
734 
735 	if (!ctr->rc_enable)
736 		rate_control = HFI_RATE_CONTROL_OFF;
737 	else if (ctr->bitrate_mode == V4L2_MPEG_VIDEO_BITRATE_MODE_VBR)
738 		rate_control = ctr->frame_skip_mode ? HFI_RATE_CONTROL_VBR_VFR :
739 						      HFI_RATE_CONTROL_VBR_CFR;
740 	else if (ctr->bitrate_mode == V4L2_MPEG_VIDEO_BITRATE_MODE_CBR)
741 		rate_control = ctr->frame_skip_mode ? HFI_RATE_CONTROL_CBR_VFR :
742 						      HFI_RATE_CONTROL_CBR_CFR;
743 	else if (ctr->bitrate_mode == V4L2_MPEG_VIDEO_BITRATE_MODE_CQ)
744 		rate_control = HFI_RATE_CONTROL_CQ;
745 
746 	ptype = HFI_PROPERTY_PARAM_VENC_RATE_CONTROL;
747 	ret = hfi_session_set_property(inst, ptype, &rate_control);
748 	if (ret)
749 		return ret;
750 
751 	if (rate_control == HFI_RATE_CONTROL_CQ && ctr->const_quality) {
752 		struct hfi_heic_frame_quality quality = {};
753 
754 		ptype = HFI_PROPERTY_CONFIG_HEIC_FRAME_QUALITY;
755 		quality.frame_quality = ctr->const_quality;
756 		ret = hfi_session_set_property(inst, ptype, &quality);
757 		if (ret)
758 			return ret;
759 	}
760 
761 	if (!ctr->bitrate)
762 		bitrate = 64000;
763 	else
764 		bitrate = ctr->bitrate;
765 
766 	ptype = HFI_PROPERTY_CONFIG_VENC_TARGET_BITRATE;
767 	brate.bitrate = bitrate;
768 	brate.layer_id = 0;
769 
770 	ret = hfi_session_set_property(inst, ptype, &brate);
771 	if (ret)
772 		return ret;
773 
774 	if (inst->fmt_cap->pixfmt == V4L2_PIX_FMT_H264 ||
775 	    inst->fmt_cap->pixfmt == V4L2_PIX_FMT_HEVC) {
776 		ptype = HFI_PROPERTY_CONFIG_VENC_SYNC_FRAME_SEQUENCE_HEADER;
777 		if (ctr->header_mode == V4L2_MPEG_VIDEO_HEADER_MODE_SEPARATE)
778 			en.enable = 0;
779 		else
780 			en.enable = 1;
781 
782 		ret = hfi_session_set_property(inst, ptype, &en);
783 		if (ret)
784 			return ret;
785 	}
786 
787 	if (!ctr->bitrate_peak)
788 		bitrate *= 2;
789 	else
790 		bitrate = ctr->bitrate_peak;
791 
792 	ptype = HFI_PROPERTY_CONFIG_VENC_MAX_BITRATE;
793 	brate.bitrate = bitrate;
794 	brate.layer_id = 0;
795 
796 	ret = hfi_session_set_property(inst, ptype, &brate);
797 	if (ret)
798 		return ret;
799 
800 	ptype = HFI_PROPERTY_PARAM_VENC_SESSION_QP;
801 	if (inst->fmt_cap->pixfmt == V4L2_PIX_FMT_HEVC) {
802 		quant.qp_i = ctr->hevc_i_qp;
803 		quant.qp_p = ctr->hevc_p_qp;
804 		quant.qp_b = ctr->hevc_b_qp;
805 	} else {
806 		quant.qp_i = ctr->h264_i_qp;
807 		quant.qp_p = ctr->h264_p_qp;
808 		quant.qp_b = ctr->h264_b_qp;
809 	}
810 	quant.layer_id = 0;
811 	ret = hfi_session_set_property(inst, ptype, &quant);
812 	if (ret)
813 		return ret;
814 
815 	ptype = HFI_PROPERTY_PARAM_VENC_SESSION_QP_RANGE;
816 	if (inst->fmt_cap->pixfmt == V4L2_PIX_FMT_HEVC) {
817 		quant_range.min_qp = ctr->hevc_min_qp;
818 		quant_range.max_qp = ctr->hevc_max_qp;
819 	} else {
820 		quant_range.min_qp = ctr->h264_min_qp;
821 		quant_range.max_qp = ctr->h264_max_qp;
822 	}
823 	quant_range.layer_id = 0;
824 	ret = hfi_session_set_property(inst, ptype, &quant_range);
825 	if (ret)
826 		return ret;
827 
828 	ptype = HFI_PROPERTY_PARAM_VENC_LTRMODE;
829 	ltr_mode.ltr_count = ctr->ltr_count;
830 	ltr_mode.ltr_mode = HFI_LTR_MODE_MANUAL;
831 	ltr_mode.trust_mode = 1;
832 	ret = hfi_session_set_property(inst, ptype, &ltr_mode);
833 	if (ret)
834 		return ret;
835 
836 	switch (inst->hfi_codec) {
837 	case HFI_VIDEO_CODEC_H264:
838 		profile = ctr->profile.h264;
839 		level = ctr->level.h264;
840 		break;
841 	case HFI_VIDEO_CODEC_MPEG4:
842 		profile = ctr->profile.mpeg4;
843 		level = ctr->level.mpeg4;
844 		break;
845 	case HFI_VIDEO_CODEC_VP8:
846 		profile = ctr->profile.vp8;
847 		level = 0;
848 		break;
849 	case HFI_VIDEO_CODEC_VP9:
850 		profile = ctr->profile.vp9;
851 		level = ctr->level.vp9;
852 		break;
853 	case HFI_VIDEO_CODEC_HEVC:
854 		profile = ctr->profile.hevc;
855 		level = ctr->level.hevc;
856 		break;
857 	case HFI_VIDEO_CODEC_MPEG2:
858 	default:
859 		profile = 0;
860 		level = 0;
861 		break;
862 	}
863 
864 	ret = venus_helper_set_profile_level(inst, profile, level);
865 	if (ret)
866 		return ret;
867 
868 	if (inst->fmt_cap->pixfmt == V4L2_PIX_FMT_H264 ||
869 	    inst->fmt_cap->pixfmt == V4L2_PIX_FMT_HEVC) {
870 		struct hfi_enable en = {};
871 
872 		ptype = HFI_PROPERTY_PARAM_VENC_H264_GENERATE_AUDNAL;
873 
874 		if (ctr->aud_enable)
875 			en.enable = 1;
876 
877 		ret = hfi_session_set_property(inst, ptype, &en);
878 	}
879 
880 	if ((inst->fmt_cap->pixfmt == V4L2_PIX_FMT_H264 ||
881 	     inst->fmt_cap->pixfmt == V4L2_PIX_FMT_HEVC) &&
882 	    (rate_control == HFI_RATE_CONTROL_CBR_VFR ||
883 	     rate_control == HFI_RATE_CONTROL_CBR_CFR)) {
884 		intra_refresh.mode = HFI_INTRA_REFRESH_NONE;
885 		intra_refresh.cir_mbs = 0;
886 
887 		if (ctr->intra_refresh_period) {
888 			u32 mbs;
889 
890 			mbs = ALIGN(inst->width, 16) * ALIGN(inst->height, 16);
891 			mbs /= 16 * 16;
892 			if (mbs % ctr->intra_refresh_period)
893 				mbs++;
894 			mbs /= ctr->intra_refresh_period;
895 
896 			intra_refresh.cir_mbs = mbs;
897 			if (ctr->intra_refresh_type ==
898 			    V4L2_CID_MPEG_VIDEO_INTRA_REFRESH_PERIOD_TYPE_CYCLIC)
899 				intra_refresh.mode = HFI_INTRA_REFRESH_CYCLIC;
900 			else
901 				intra_refresh.mode = HFI_INTRA_REFRESH_RANDOM;
902 		}
903 
904 		ptype = HFI_PROPERTY_PARAM_VENC_INTRA_REFRESH;
905 
906 		ret = hfi_session_set_property(inst, ptype, &intra_refresh);
907 		if (ret)
908 			return ret;
909 	}
910 
911 	return 0;
912 }
913 
914 static int venc_init_session(struct venus_inst *inst)
915 {
916 	int ret;
917 
918 	ret = venus_helper_session_init(inst);
919 	if (ret == -EALREADY)
920 		return 0;
921 	else if (ret)
922 		return ret;
923 
924 	ret = venus_helper_set_stride(inst, inst->out_width,
925 				      inst->out_height);
926 	if (ret)
927 		goto deinit;
928 
929 	ret = venus_helper_set_input_resolution(inst, inst->width,
930 						inst->height);
931 	if (ret)
932 		goto deinit;
933 
934 	ret = venus_helper_set_output_resolution(inst, inst->width,
935 						 inst->height,
936 						 HFI_BUFFER_OUTPUT);
937 	if (ret)
938 		goto deinit;
939 
940 	ret = venus_helper_set_color_format(inst, inst->fmt_out->pixfmt);
941 	if (ret)
942 		goto deinit;
943 
944 	ret = venc_set_properties(inst);
945 	if (ret)
946 		goto deinit;
947 
948 	return 0;
949 deinit:
950 	hfi_session_deinit(inst);
951 	return ret;
952 }
953 
954 static int venc_out_num_buffers(struct venus_inst *inst, unsigned int *num)
955 {
956 	struct hfi_buffer_requirements bufreq;
957 	int ret;
958 
959 	ret = venus_helper_get_bufreq(inst, HFI_BUFFER_INPUT, &bufreq);
960 	if (ret)
961 		return ret;
962 
963 	*num = bufreq.count_actual;
964 
965 	return 0;
966 }
967 
968 static int venc_queue_setup(struct vb2_queue *q,
969 			    unsigned int *num_buffers, unsigned int *num_planes,
970 			    unsigned int sizes[], struct device *alloc_devs[])
971 {
972 	struct venus_inst *inst = vb2_get_drv_priv(q);
973 	struct venus_core *core = inst->core;
974 	unsigned int num, min = 4;
975 	int ret;
976 
977 	if (*num_planes) {
978 		if (q->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE &&
979 		    *num_planes != inst->fmt_out->num_planes)
980 			return -EINVAL;
981 
982 		if (q->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE &&
983 		    *num_planes != inst->fmt_cap->num_planes)
984 			return -EINVAL;
985 
986 		if (q->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE &&
987 		    sizes[0] < inst->input_buf_size)
988 			return -EINVAL;
989 
990 		if (q->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE &&
991 		    sizes[0] < inst->output_buf_size)
992 			return -EINVAL;
993 
994 		return 0;
995 	}
996 
997 	if (test_bit(0, &core->sys_error)) {
998 		if (inst->nonblock)
999 			return -EAGAIN;
1000 
1001 		ret = wait_event_interruptible(core->sys_err_done,
1002 					       !test_bit(0, &core->sys_error));
1003 		if (ret)
1004 			return ret;
1005 	}
1006 
1007 	ret = venc_pm_get(inst);
1008 	if (ret)
1009 		return ret;
1010 
1011 	mutex_lock(&inst->lock);
1012 	ret = venc_init_session(inst);
1013 	mutex_unlock(&inst->lock);
1014 
1015 	if (ret)
1016 		goto put_power;
1017 
1018 	ret = venc_pm_put(inst, false);
1019 	if (ret)
1020 		return ret;
1021 
1022 	switch (q->type) {
1023 	case V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE:
1024 		*num_planes = inst->fmt_out->num_planes;
1025 
1026 		ret = venc_out_num_buffers(inst, &num);
1027 		if (ret)
1028 			break;
1029 
1030 		num = max(num, min);
1031 		*num_buffers = max(*num_buffers, num);
1032 		inst->num_input_bufs = *num_buffers;
1033 
1034 		sizes[0] = venus_helper_get_framesz(inst->fmt_out->pixfmt,
1035 						    inst->out_width,
1036 						    inst->out_height);
1037 		inst->input_buf_size = sizes[0];
1038 		break;
1039 	case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE:
1040 		*num_planes = inst->fmt_cap->num_planes;
1041 		*num_buffers = max(*num_buffers, min);
1042 		inst->num_output_bufs = *num_buffers;
1043 		sizes[0] = venus_helper_get_framesz(inst->fmt_cap->pixfmt,
1044 						    inst->width,
1045 						    inst->height);
1046 		sizes[0] = max(sizes[0], inst->output_buf_size);
1047 		inst->output_buf_size = sizes[0];
1048 		break;
1049 	default:
1050 		ret = -EINVAL;
1051 		break;
1052 	}
1053 
1054 	return ret;
1055 put_power:
1056 	venc_pm_put(inst, false);
1057 	return ret;
1058 }
1059 
1060 static int venc_buf_init(struct vb2_buffer *vb)
1061 {
1062 	struct venus_inst *inst = vb2_get_drv_priv(vb->vb2_queue);
1063 
1064 	inst->buf_count++;
1065 
1066 	return venus_helper_vb2_buf_init(vb);
1067 }
1068 
1069 static void venc_release_session(struct venus_inst *inst)
1070 {
1071 	int ret;
1072 
1073 	venc_pm_get(inst);
1074 
1075 	mutex_lock(&inst->lock);
1076 
1077 	ret = hfi_session_deinit(inst);
1078 	if (ret || inst->session_error)
1079 		hfi_session_abort(inst);
1080 
1081 	mutex_unlock(&inst->lock);
1082 
1083 	venus_pm_load_scale(inst);
1084 	INIT_LIST_HEAD(&inst->registeredbufs);
1085 	venus_pm_release_core(inst);
1086 
1087 	venc_pm_put(inst, false);
1088 }
1089 
1090 static void venc_buf_cleanup(struct vb2_buffer *vb)
1091 {
1092 	struct venus_inst *inst = vb2_get_drv_priv(vb->vb2_queue);
1093 	struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
1094 	struct venus_buffer *buf = to_venus_buffer(vbuf);
1095 
1096 	mutex_lock(&inst->lock);
1097 	if (vb->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE)
1098 		if (!list_empty(&inst->registeredbufs))
1099 			list_del_init(&buf->reg_list);
1100 	mutex_unlock(&inst->lock);
1101 
1102 	inst->buf_count--;
1103 	if (!inst->buf_count)
1104 		venc_release_session(inst);
1105 }
1106 
1107 static int venc_verify_conf(struct venus_inst *inst)
1108 {
1109 	enum hfi_version ver = inst->core->res->hfi_version;
1110 	struct hfi_buffer_requirements bufreq;
1111 	int ret;
1112 
1113 	if (!inst->num_input_bufs || !inst->num_output_bufs)
1114 		return -EINVAL;
1115 
1116 	ret = venus_helper_get_bufreq(inst, HFI_BUFFER_OUTPUT, &bufreq);
1117 	if (ret)
1118 		return ret;
1119 
1120 	if (inst->num_output_bufs < bufreq.count_actual ||
1121 	    inst->num_output_bufs < HFI_BUFREQ_COUNT_MIN(&bufreq, ver))
1122 		return -EINVAL;
1123 
1124 	ret = venus_helper_get_bufreq(inst, HFI_BUFFER_INPUT, &bufreq);
1125 	if (ret)
1126 		return ret;
1127 
1128 	if (inst->num_input_bufs < bufreq.count_actual ||
1129 	    inst->num_input_bufs < HFI_BUFREQ_COUNT_MIN(&bufreq, ver))
1130 		return -EINVAL;
1131 
1132 	return 0;
1133 }
1134 
1135 static int venc_start_streaming(struct vb2_queue *q, unsigned int count)
1136 {
1137 	struct venus_inst *inst = vb2_get_drv_priv(q);
1138 	int ret;
1139 
1140 	mutex_lock(&inst->lock);
1141 
1142 	if (q->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE)
1143 		inst->streamon_out = 1;
1144 	else
1145 		inst->streamon_cap = 1;
1146 
1147 	if (!(inst->streamon_out & inst->streamon_cap)) {
1148 		mutex_unlock(&inst->lock);
1149 		return 0;
1150 	}
1151 
1152 	venus_helper_init_instance(inst);
1153 
1154 	inst->sequence_cap = 0;
1155 	inst->sequence_out = 0;
1156 
1157 	ret = venc_pm_get(inst);
1158 	if (ret)
1159 		goto error;
1160 
1161 	ret = venus_pm_acquire_core(inst);
1162 	if (ret)
1163 		goto put_power;
1164 
1165 	ret = venc_pm_put(inst, true);
1166 	if (ret)
1167 		goto error;
1168 
1169 	ret = venc_set_properties(inst);
1170 	if (ret)
1171 		goto error;
1172 
1173 	ret = venc_verify_conf(inst);
1174 	if (ret)
1175 		goto error;
1176 
1177 	ret = venus_helper_set_num_bufs(inst, inst->num_input_bufs,
1178 					inst->num_output_bufs, 0);
1179 	if (ret)
1180 		goto error;
1181 
1182 	ret = venus_helper_vb2_start_streaming(inst);
1183 	if (ret)
1184 		goto error;
1185 
1186 	mutex_unlock(&inst->lock);
1187 
1188 	return 0;
1189 
1190 put_power:
1191 	venc_pm_put(inst, false);
1192 error:
1193 	venus_helper_buffers_done(inst, q->type, VB2_BUF_STATE_QUEUED);
1194 	if (q->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE)
1195 		inst->streamon_out = 0;
1196 	else
1197 		inst->streamon_cap = 0;
1198 	mutex_unlock(&inst->lock);
1199 	return ret;
1200 }
1201 
1202 static void venc_vb2_buf_queue(struct vb2_buffer *vb)
1203 {
1204 	struct venus_inst *inst = vb2_get_drv_priv(vb->vb2_queue);
1205 
1206 	venc_pm_get_put(inst);
1207 
1208 	mutex_lock(&inst->lock);
1209 	venus_helper_vb2_buf_queue(vb);
1210 	mutex_unlock(&inst->lock);
1211 }
1212 
1213 static const struct vb2_ops venc_vb2_ops = {
1214 	.queue_setup = venc_queue_setup,
1215 	.buf_init = venc_buf_init,
1216 	.buf_cleanup = venc_buf_cleanup,
1217 	.buf_prepare = venus_helper_vb2_buf_prepare,
1218 	.start_streaming = venc_start_streaming,
1219 	.stop_streaming = venus_helper_vb2_stop_streaming,
1220 	.buf_queue = venc_vb2_buf_queue,
1221 };
1222 
1223 static void venc_buf_done(struct venus_inst *inst, unsigned int buf_type,
1224 			  u32 tag, u32 bytesused, u32 data_offset, u32 flags,
1225 			  u32 hfi_flags, u64 timestamp_us)
1226 {
1227 	struct vb2_v4l2_buffer *vbuf;
1228 	struct vb2_buffer *vb;
1229 	unsigned int type;
1230 
1231 	venc_pm_touch(inst);
1232 
1233 	if (buf_type == HFI_BUFFER_INPUT)
1234 		type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE;
1235 	else
1236 		type = V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE;
1237 
1238 	vbuf = venus_helper_find_buf(inst, type, tag);
1239 	if (!vbuf)
1240 		return;
1241 
1242 	vbuf->flags = flags;
1243 
1244 	if (type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) {
1245 		vb = &vbuf->vb2_buf;
1246 		vb2_set_plane_payload(vb, 0, bytesused + data_offset);
1247 		vb->planes[0].data_offset = data_offset;
1248 		vb->timestamp = timestamp_us * NSEC_PER_USEC;
1249 		vbuf->sequence = inst->sequence_cap++;
1250 	} else {
1251 		vbuf->sequence = inst->sequence_out++;
1252 	}
1253 
1254 	v4l2_m2m_buf_done(vbuf, VB2_BUF_STATE_DONE);
1255 }
1256 
1257 static void venc_event_notify(struct venus_inst *inst, u32 event,
1258 			      struct hfi_event_data *data)
1259 {
1260 	struct device *dev = inst->core->dev_enc;
1261 
1262 	venc_pm_touch(inst);
1263 
1264 	if (event == EVT_SESSION_ERROR) {
1265 		inst->session_error = true;
1266 		venus_helper_vb2_queue_error(inst);
1267 		dev_err(dev, "enc: event session error %x\n", inst->error);
1268 	}
1269 }
1270 
1271 static const struct hfi_inst_ops venc_hfi_ops = {
1272 	.buf_done = venc_buf_done,
1273 	.event_notify = venc_event_notify,
1274 };
1275 
1276 static const struct v4l2_m2m_ops venc_m2m_ops = {
1277 	.device_run = venus_helper_m2m_device_run,
1278 	.job_abort = venus_helper_m2m_job_abort,
1279 };
1280 
1281 static int m2m_queue_init(void *priv, struct vb2_queue *src_vq,
1282 			  struct vb2_queue *dst_vq)
1283 {
1284 	struct venus_inst *inst = priv;
1285 	int ret;
1286 
1287 	src_vq->type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE;
1288 	src_vq->io_modes = VB2_MMAP | VB2_USERPTR | VB2_DMABUF;
1289 	src_vq->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_COPY;
1290 	src_vq->ops = &venc_vb2_ops;
1291 	src_vq->mem_ops = &vb2_dma_contig_memops;
1292 	src_vq->drv_priv = inst;
1293 	src_vq->buf_struct_size = sizeof(struct venus_buffer);
1294 	src_vq->allow_zero_bytesused = 1;
1295 	src_vq->min_buffers_needed = 1;
1296 	src_vq->dev = inst->core->dev;
1297 	if (inst->core->res->hfi_version == HFI_VERSION_1XX)
1298 		src_vq->bidirectional = 1;
1299 	ret = vb2_queue_init(src_vq);
1300 	if (ret)
1301 		return ret;
1302 
1303 	dst_vq->type = V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE;
1304 	dst_vq->io_modes = VB2_MMAP | VB2_USERPTR | VB2_DMABUF;
1305 	dst_vq->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_COPY;
1306 	dst_vq->ops = &venc_vb2_ops;
1307 	dst_vq->mem_ops = &vb2_dma_contig_memops;
1308 	dst_vq->drv_priv = inst;
1309 	dst_vq->buf_struct_size = sizeof(struct venus_buffer);
1310 	dst_vq->allow_zero_bytesused = 1;
1311 	dst_vq->min_buffers_needed = 1;
1312 	dst_vq->dev = inst->core->dev;
1313 	return vb2_queue_init(dst_vq);
1314 }
1315 
1316 static void venc_inst_init(struct venus_inst *inst)
1317 {
1318 	inst->fmt_cap = &venc_formats[3];
1319 	inst->fmt_out = &venc_formats[0];
1320 	inst->width = 1280;
1321 	inst->height = ALIGN(720, 32);
1322 	inst->out_width = 1280;
1323 	inst->out_height = 720;
1324 	inst->fps = 15;
1325 	inst->timeperframe.numerator = 1;
1326 	inst->timeperframe.denominator = 15;
1327 	inst->hfi_codec = HFI_VIDEO_CODEC_H264;
1328 }
1329 
1330 static int venc_open(struct file *file)
1331 {
1332 	struct venus_core *core = video_drvdata(file);
1333 	struct venus_inst *inst;
1334 	int ret;
1335 
1336 	inst = kzalloc(sizeof(*inst), GFP_KERNEL);
1337 	if (!inst)
1338 		return -ENOMEM;
1339 
1340 	INIT_LIST_HEAD(&inst->dpbbufs);
1341 	INIT_LIST_HEAD(&inst->registeredbufs);
1342 	INIT_LIST_HEAD(&inst->internalbufs);
1343 	INIT_LIST_HEAD(&inst->list);
1344 	mutex_init(&inst->lock);
1345 
1346 	inst->core = core;
1347 	inst->session_type = VIDC_SESSION_TYPE_ENC;
1348 	inst->clk_data.core_id = VIDC_CORE_ID_DEFAULT;
1349 	inst->core_acquired = false;
1350 	inst->nonblock = file->f_flags & O_NONBLOCK;
1351 
1352 	venus_helper_init_instance(inst);
1353 
1354 	ret = venc_ctrl_init(inst);
1355 	if (ret)
1356 		goto err_free;
1357 
1358 	ret = hfi_session_create(inst, &venc_hfi_ops);
1359 	if (ret)
1360 		goto err_ctrl_deinit;
1361 
1362 	venc_inst_init(inst);
1363 
1364 	/*
1365 	 * create m2m device for every instance, the m2m context scheduling
1366 	 * is made by firmware side so we do not need to care about.
1367 	 */
1368 	inst->m2m_dev = v4l2_m2m_init(&venc_m2m_ops);
1369 	if (IS_ERR(inst->m2m_dev)) {
1370 		ret = PTR_ERR(inst->m2m_dev);
1371 		goto err_session_destroy;
1372 	}
1373 
1374 	inst->m2m_ctx = v4l2_m2m_ctx_init(inst->m2m_dev, inst, m2m_queue_init);
1375 	if (IS_ERR(inst->m2m_ctx)) {
1376 		ret = PTR_ERR(inst->m2m_ctx);
1377 		goto err_m2m_release;
1378 	}
1379 
1380 	v4l2_fh_init(&inst->fh, core->vdev_enc);
1381 
1382 	inst->fh.ctrl_handler = &inst->ctrl_handler;
1383 	v4l2_fh_add(&inst->fh);
1384 	inst->fh.m2m_ctx = inst->m2m_ctx;
1385 	file->private_data = &inst->fh;
1386 
1387 	return 0;
1388 
1389 err_m2m_release:
1390 	v4l2_m2m_release(inst->m2m_dev);
1391 err_session_destroy:
1392 	hfi_session_destroy(inst);
1393 err_ctrl_deinit:
1394 	venc_ctrl_deinit(inst);
1395 err_free:
1396 	kfree(inst);
1397 	return ret;
1398 }
1399 
1400 static int venc_close(struct file *file)
1401 {
1402 	struct venus_inst *inst = to_inst(file);
1403 
1404 	venc_pm_get(inst);
1405 
1406 	v4l2_m2m_ctx_release(inst->m2m_ctx);
1407 	v4l2_m2m_release(inst->m2m_dev);
1408 	venc_ctrl_deinit(inst);
1409 	hfi_session_destroy(inst);
1410 	mutex_destroy(&inst->lock);
1411 	v4l2_fh_del(&inst->fh);
1412 	v4l2_fh_exit(&inst->fh);
1413 
1414 	venc_pm_put(inst, false);
1415 
1416 	kfree(inst);
1417 	return 0;
1418 }
1419 
1420 static const struct v4l2_file_operations venc_fops = {
1421 	.owner = THIS_MODULE,
1422 	.open = venc_open,
1423 	.release = venc_close,
1424 	.unlocked_ioctl = video_ioctl2,
1425 	.poll = v4l2_m2m_fop_poll,
1426 	.mmap = v4l2_m2m_fop_mmap,
1427 };
1428 
1429 static int venc_probe(struct platform_device *pdev)
1430 {
1431 	struct device *dev = &pdev->dev;
1432 	struct video_device *vdev;
1433 	struct venus_core *core;
1434 	int ret;
1435 
1436 	if (!dev->parent)
1437 		return -EPROBE_DEFER;
1438 
1439 	core = dev_get_drvdata(dev->parent);
1440 	if (!core)
1441 		return -EPROBE_DEFER;
1442 
1443 	platform_set_drvdata(pdev, core);
1444 
1445 	if (core->pm_ops->venc_get) {
1446 		ret = core->pm_ops->venc_get(dev);
1447 		if (ret)
1448 			return ret;
1449 	}
1450 
1451 	vdev = video_device_alloc();
1452 	if (!vdev)
1453 		return -ENOMEM;
1454 
1455 	strscpy(vdev->name, "qcom-venus-encoder", sizeof(vdev->name));
1456 	vdev->release = video_device_release;
1457 	vdev->fops = &venc_fops;
1458 	vdev->ioctl_ops = &venc_ioctl_ops;
1459 	vdev->vfl_dir = VFL_DIR_M2M;
1460 	vdev->v4l2_dev = &core->v4l2_dev;
1461 	vdev->device_caps = V4L2_CAP_VIDEO_M2M_MPLANE | V4L2_CAP_STREAMING;
1462 
1463 	ret = video_register_device(vdev, VFL_TYPE_VIDEO, -1);
1464 	if (ret)
1465 		goto err_vdev_release;
1466 
1467 	core->vdev_enc = vdev;
1468 	core->dev_enc = dev;
1469 
1470 	video_set_drvdata(vdev, core);
1471 	pm_runtime_set_autosuspend_delay(dev, 2000);
1472 	pm_runtime_use_autosuspend(dev);
1473 	pm_runtime_enable(dev);
1474 
1475 	return 0;
1476 
1477 err_vdev_release:
1478 	video_device_release(vdev);
1479 	return ret;
1480 }
1481 
1482 static int venc_remove(struct platform_device *pdev)
1483 {
1484 	struct venus_core *core = dev_get_drvdata(pdev->dev.parent);
1485 
1486 	video_unregister_device(core->vdev_enc);
1487 	pm_runtime_disable(core->dev_enc);
1488 
1489 	if (core->pm_ops->venc_put)
1490 		core->pm_ops->venc_put(core->dev_enc);
1491 
1492 	return 0;
1493 }
1494 
1495 static __maybe_unused int venc_runtime_suspend(struct device *dev)
1496 {
1497 	struct venus_core *core = dev_get_drvdata(dev);
1498 	const struct venus_pm_ops *pm_ops = core->pm_ops;
1499 	int ret = 0;
1500 
1501 	if (pm_ops->venc_power)
1502 		ret = pm_ops->venc_power(dev, POWER_OFF);
1503 
1504 	return ret;
1505 }
1506 
1507 static __maybe_unused int venc_runtime_resume(struct device *dev)
1508 {
1509 	struct venus_core *core = dev_get_drvdata(dev);
1510 	const struct venus_pm_ops *pm_ops = core->pm_ops;
1511 	int ret = 0;
1512 
1513 	if (pm_ops->venc_power)
1514 		ret = pm_ops->venc_power(dev, POWER_ON);
1515 
1516 	return ret;
1517 }
1518 
1519 static const struct dev_pm_ops venc_pm_ops = {
1520 	SET_SYSTEM_SLEEP_PM_OPS(pm_runtime_force_suspend,
1521 				pm_runtime_force_resume)
1522 	SET_RUNTIME_PM_OPS(venc_runtime_suspend, venc_runtime_resume, NULL)
1523 };
1524 
1525 static const struct of_device_id venc_dt_match[] = {
1526 	{ .compatible = "venus-encoder" },
1527 	{ }
1528 };
1529 MODULE_DEVICE_TABLE(of, venc_dt_match);
1530 
1531 static struct platform_driver qcom_venus_enc_driver = {
1532 	.probe = venc_probe,
1533 	.remove = venc_remove,
1534 	.driver = {
1535 		.name = "qcom-venus-encoder",
1536 		.of_match_table = venc_dt_match,
1537 		.pm = &venc_pm_ops,
1538 	},
1539 };
1540 module_platform_driver(qcom_venus_enc_driver);
1541 
1542 MODULE_ALIAS("platform:qcom-venus-encoder");
1543 MODULE_DESCRIPTION("Qualcomm Venus video encoder driver");
1544 MODULE_LICENSE("GPL v2");
1545