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 	[VENUS_FMT_NV12] = {
36 		.pixfmt = V4L2_PIX_FMT_NV12,
37 		.num_planes = 1,
38 		.type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE,
39 	},
40 	[VENUS_FMT_H264] = {
41 		.pixfmt = V4L2_PIX_FMT_H264,
42 		.num_planes = 1,
43 		.type = V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE,
44 	},
45 	[VENUS_FMT_VP8] = {
46 		.pixfmt = V4L2_PIX_FMT_VP8,
47 		.num_planes = 1,
48 		.type = V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE,
49 	},
50 	[VENUS_FMT_HEVC] = {
51 		.pixfmt = V4L2_PIX_FMT_HEVC,
52 		.num_planes = 1,
53 		.type = V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE,
54 	},
55 	[VENUS_FMT_MPEG4] = {
56 		.pixfmt = V4L2_PIX_FMT_MPEG4,
57 		.num_planes = 1,
58 		.type = V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE,
59 	},
60 	[VENUS_FMT_H263] = {
61 		.pixfmt = V4L2_PIX_FMT_H263,
62 		.num_planes = 1,
63 		.type = V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE,
64 	},
65 };
66 
67 static const struct venus_format *
68 find_format(struct venus_inst *inst, u32 pixfmt, u32 type)
69 {
70 	const struct venus_format *fmt = venc_formats;
71 	unsigned int size = ARRAY_SIZE(venc_formats);
72 	unsigned int i;
73 
74 	for (i = 0; i < size; i++) {
75 		if (fmt[i].pixfmt == pixfmt)
76 			break;
77 	}
78 
79 	if (i == size || fmt[i].type != type)
80 		return NULL;
81 
82 	if (type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE &&
83 	    !venus_helper_check_codec(inst, fmt[i].pixfmt))
84 		return NULL;
85 
86 	return &fmt[i];
87 }
88 
89 static const struct venus_format *
90 find_format_by_index(struct venus_inst *inst, unsigned int index, u32 type)
91 {
92 	const struct venus_format *fmt = venc_formats;
93 	unsigned int size = ARRAY_SIZE(venc_formats);
94 	unsigned int i, k = 0;
95 
96 	if (index > size)
97 		return NULL;
98 
99 	for (i = 0; i < size; i++) {
100 		bool valid;
101 
102 		if (fmt[i].type != type)
103 			continue;
104 		valid = type != V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE ||
105 			venus_helper_check_codec(inst, fmt[i].pixfmt);
106 		if (k == index && valid)
107 			break;
108 		if (valid)
109 			k++;
110 	}
111 
112 	if (i == size)
113 		return NULL;
114 
115 	return &fmt[i];
116 }
117 
118 static int venc_v4l2_to_hfi(int id, int value)
119 {
120 	switch (id) {
121 	case V4L2_CID_MPEG_VIDEO_H264_ENTROPY_MODE:
122 		switch (value) {
123 		case V4L2_MPEG_VIDEO_H264_ENTROPY_MODE_CAVLC:
124 		default:
125 			return HFI_H264_ENTROPY_CAVLC;
126 		case V4L2_MPEG_VIDEO_H264_ENTROPY_MODE_CABAC:
127 			return HFI_H264_ENTROPY_CABAC;
128 		}
129 	case V4L2_CID_MPEG_VIDEO_H264_LOOP_FILTER_MODE:
130 		switch (value) {
131 		case V4L2_MPEG_VIDEO_H264_LOOP_FILTER_MODE_ENABLED:
132 		default:
133 			return HFI_H264_DB_MODE_ALL_BOUNDARY;
134 		case V4L2_MPEG_VIDEO_H264_LOOP_FILTER_MODE_DISABLED:
135 			return HFI_H264_DB_MODE_DISABLE;
136 		case V4L2_MPEG_VIDEO_H264_LOOP_FILTER_MODE_DISABLED_AT_SLICE_BOUNDARY:
137 			return HFI_H264_DB_MODE_SKIP_SLICE_BOUNDARY;
138 		}
139 	}
140 
141 	return 0;
142 }
143 
144 static int
145 venc_querycap(struct file *file, void *fh, struct v4l2_capability *cap)
146 {
147 	strscpy(cap->driver, "qcom-venus", sizeof(cap->driver));
148 	strscpy(cap->card, "Qualcomm Venus video encoder", sizeof(cap->card));
149 	strscpy(cap->bus_info, "platform:qcom-venus", sizeof(cap->bus_info));
150 
151 	return 0;
152 }
153 
154 static int venc_enum_fmt(struct file *file, void *fh, struct v4l2_fmtdesc *f)
155 {
156 	struct venus_inst *inst = to_inst(file);
157 	const struct venus_format *fmt;
158 
159 	fmt = find_format_by_index(inst, f->index, f->type);
160 
161 	memset(f->reserved, 0, sizeof(f->reserved));
162 
163 	if (!fmt)
164 		return -EINVAL;
165 
166 	f->pixelformat = fmt->pixfmt;
167 
168 	return 0;
169 }
170 
171 static const struct venus_format *
172 venc_try_fmt_common(struct venus_inst *inst, struct v4l2_format *f)
173 {
174 	struct v4l2_pix_format_mplane *pixmp = &f->fmt.pix_mp;
175 	struct v4l2_plane_pix_format *pfmt = pixmp->plane_fmt;
176 	const struct venus_format *fmt;
177 	u32 sizeimage;
178 
179 	memset(pfmt[0].reserved, 0, sizeof(pfmt[0].reserved));
180 	memset(pixmp->reserved, 0, sizeof(pixmp->reserved));
181 
182 	fmt = find_format(inst, pixmp->pixelformat, f->type);
183 	if (!fmt) {
184 		if (f->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE)
185 			pixmp->pixelformat = V4L2_PIX_FMT_H264;
186 		else if (f->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE)
187 			pixmp->pixelformat = V4L2_PIX_FMT_NV12;
188 		else
189 			return NULL;
190 		fmt = find_format(inst, pixmp->pixelformat, f->type);
191 		if (!fmt)
192 			return NULL;
193 	}
194 
195 	pixmp->width = clamp(pixmp->width, frame_width_min(inst),
196 			     frame_width_max(inst));
197 	pixmp->height = clamp(pixmp->height, frame_height_min(inst),
198 			      frame_height_max(inst));
199 
200 	pixmp->width = ALIGN(pixmp->width, 128);
201 	pixmp->height = ALIGN(pixmp->height, 32);
202 
203 	pixmp->width = ALIGN(pixmp->width, 2);
204 	pixmp->height = ALIGN(pixmp->height, 2);
205 
206 	if (pixmp->field == V4L2_FIELD_ANY)
207 		pixmp->field = V4L2_FIELD_NONE;
208 	pixmp->num_planes = fmt->num_planes;
209 	pixmp->flags = 0;
210 
211 	sizeimage = venus_helper_get_framesz(pixmp->pixelformat,
212 					     pixmp->width,
213 					     pixmp->height);
214 	pfmt[0].sizeimage = max(ALIGN(pfmt[0].sizeimage, SZ_4K), sizeimage);
215 
216 	if (f->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE)
217 		pfmt[0].bytesperline = ALIGN(pixmp->width, 128);
218 	else
219 		pfmt[0].bytesperline = 0;
220 
221 	return fmt;
222 }
223 
224 static int venc_try_fmt(struct file *file, void *fh, struct v4l2_format *f)
225 {
226 	struct venus_inst *inst = to_inst(file);
227 
228 	venc_try_fmt_common(inst, f);
229 
230 	return 0;
231 }
232 
233 static int venc_s_fmt(struct file *file, void *fh, struct v4l2_format *f)
234 {
235 	struct venus_inst *inst = to_inst(file);
236 	struct v4l2_pix_format_mplane *pixmp = &f->fmt.pix_mp;
237 	struct v4l2_pix_format_mplane orig_pixmp;
238 	const struct venus_format *fmt;
239 	struct v4l2_format format;
240 	u32 pixfmt_out = 0, pixfmt_cap = 0;
241 	struct vb2_queue *q;
242 
243 	q = v4l2_m2m_get_vq(inst->m2m_ctx, f->type);
244 	if (!q)
245 		return -EINVAL;
246 
247 	if (vb2_is_busy(q))
248 		return -EBUSY;
249 
250 	orig_pixmp = *pixmp;
251 
252 	fmt = venc_try_fmt_common(inst, f);
253 	if (!fmt)
254 		return -EINVAL;
255 
256 	if (f->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) {
257 		pixfmt_out = pixmp->pixelformat;
258 		pixfmt_cap = inst->fmt_cap->pixfmt;
259 	} else if (f->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) {
260 		pixfmt_cap = pixmp->pixelformat;
261 		pixfmt_out = inst->fmt_out->pixfmt;
262 	}
263 
264 	memset(&format, 0, sizeof(format));
265 
266 	format.type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE;
267 	format.fmt.pix_mp.pixelformat = pixfmt_out;
268 	format.fmt.pix_mp.width = orig_pixmp.width;
269 	format.fmt.pix_mp.height = orig_pixmp.height;
270 	venc_try_fmt_common(inst, &format);
271 
272 	if (f->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) {
273 		inst->out_width = format.fmt.pix_mp.width;
274 		inst->out_height = format.fmt.pix_mp.height;
275 		inst->colorspace = pixmp->colorspace;
276 		inst->ycbcr_enc = pixmp->ycbcr_enc;
277 		inst->quantization = pixmp->quantization;
278 		inst->xfer_func = pixmp->xfer_func;
279 	}
280 
281 	memset(&format, 0, sizeof(format));
282 
283 	format.type = V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE;
284 	format.fmt.pix_mp.pixelformat = pixfmt_cap;
285 	format.fmt.pix_mp.width = orig_pixmp.width;
286 	format.fmt.pix_mp.height = orig_pixmp.height;
287 	venc_try_fmt_common(inst, &format);
288 
289 	inst->width = format.fmt.pix_mp.width;
290 	inst->height = format.fmt.pix_mp.height;
291 
292 	if (f->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE)
293 		inst->fmt_out = fmt;
294 	else if (f->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) {
295 		inst->fmt_cap = fmt;
296 		inst->output_buf_size = pixmp->plane_fmt[0].sizeimage;
297 	}
298 
299 	return 0;
300 }
301 
302 static int venc_g_fmt(struct file *file, void *fh, struct v4l2_format *f)
303 {
304 	struct v4l2_pix_format_mplane *pixmp = &f->fmt.pix_mp;
305 	struct venus_inst *inst = to_inst(file);
306 	const struct venus_format *fmt;
307 
308 	if (f->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE)
309 		fmt = inst->fmt_cap;
310 	else if (f->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE)
311 		fmt = inst->fmt_out;
312 	else
313 		return -EINVAL;
314 
315 	pixmp->pixelformat = fmt->pixfmt;
316 
317 	if (f->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) {
318 		pixmp->width = inst->width;
319 		pixmp->height = inst->height;
320 		pixmp->colorspace = inst->colorspace;
321 		pixmp->ycbcr_enc = inst->ycbcr_enc;
322 		pixmp->quantization = inst->quantization;
323 		pixmp->xfer_func = inst->xfer_func;
324 	} else if (f->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) {
325 		pixmp->width = inst->out_width;
326 		pixmp->height = inst->out_height;
327 	}
328 
329 	venc_try_fmt_common(inst, f);
330 
331 	return 0;
332 }
333 
334 static int
335 venc_g_selection(struct file *file, void *fh, struct v4l2_selection *s)
336 {
337 	struct venus_inst *inst = to_inst(file);
338 
339 	if (s->type != V4L2_BUF_TYPE_VIDEO_OUTPUT)
340 		return -EINVAL;
341 
342 	switch (s->target) {
343 	case V4L2_SEL_TGT_CROP_DEFAULT:
344 	case V4L2_SEL_TGT_CROP_BOUNDS:
345 		s->r.width = inst->out_width;
346 		s->r.height = inst->out_height;
347 		break;
348 	case V4L2_SEL_TGT_CROP:
349 		s->r.width = inst->width;
350 		s->r.height = inst->height;
351 		break;
352 	default:
353 		return -EINVAL;
354 	}
355 
356 	s->r.top = 0;
357 	s->r.left = 0;
358 
359 	return 0;
360 }
361 
362 static int
363 venc_s_selection(struct file *file, void *fh, struct v4l2_selection *s)
364 {
365 	struct venus_inst *inst = to_inst(file);
366 
367 	if (s->type != V4L2_BUF_TYPE_VIDEO_OUTPUT)
368 		return -EINVAL;
369 
370 	if (s->r.width > inst->out_width ||
371 	    s->r.height > inst->out_height)
372 		return -EINVAL;
373 
374 	s->r.width = ALIGN(s->r.width, 2);
375 	s->r.height = ALIGN(s->r.height, 2);
376 
377 	switch (s->target) {
378 	case V4L2_SEL_TGT_CROP:
379 		s->r.top = 0;
380 		s->r.left = 0;
381 		inst->width = s->r.width;
382 		inst->height = s->r.height;
383 		break;
384 	default:
385 		return -EINVAL;
386 	}
387 
388 	return 0;
389 }
390 
391 static int venc_s_parm(struct file *file, void *fh, struct v4l2_streamparm *a)
392 {
393 	struct venus_inst *inst = to_inst(file);
394 	struct v4l2_outputparm *out = &a->parm.output;
395 	struct v4l2_fract *timeperframe = &out->timeperframe;
396 	u64 us_per_frame, fps;
397 
398 	if (a->type != V4L2_BUF_TYPE_VIDEO_OUTPUT &&
399 	    a->type != V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE)
400 		return -EINVAL;
401 
402 	memset(out->reserved, 0, sizeof(out->reserved));
403 
404 	if (!timeperframe->denominator)
405 		timeperframe->denominator = inst->timeperframe.denominator;
406 	if (!timeperframe->numerator)
407 		timeperframe->numerator = inst->timeperframe.numerator;
408 
409 	out->capability = V4L2_CAP_TIMEPERFRAME;
410 
411 	us_per_frame = timeperframe->numerator * (u64)USEC_PER_SEC;
412 	do_div(us_per_frame, timeperframe->denominator);
413 
414 	if (!us_per_frame)
415 		return -EINVAL;
416 
417 	fps = (u64)USEC_PER_SEC;
418 	do_div(fps, us_per_frame);
419 
420 	inst->timeperframe = *timeperframe;
421 	inst->fps = fps;
422 
423 	return 0;
424 }
425 
426 static int venc_g_parm(struct file *file, void *fh, struct v4l2_streamparm *a)
427 {
428 	struct venus_inst *inst = to_inst(file);
429 
430 	if (a->type != V4L2_BUF_TYPE_VIDEO_OUTPUT &&
431 	    a->type != V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE)
432 		return -EINVAL;
433 
434 	a->parm.output.capability |= V4L2_CAP_TIMEPERFRAME;
435 	a->parm.output.timeperframe = inst->timeperframe;
436 
437 	return 0;
438 }
439 
440 static int venc_enum_framesizes(struct file *file, void *fh,
441 				struct v4l2_frmsizeenum *fsize)
442 {
443 	struct venus_inst *inst = to_inst(file);
444 	const struct venus_format *fmt;
445 
446 	fsize->type = V4L2_FRMSIZE_TYPE_STEPWISE;
447 
448 	fmt = find_format(inst, fsize->pixel_format,
449 			  V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE);
450 	if (!fmt) {
451 		fmt = find_format(inst, fsize->pixel_format,
452 				  V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE);
453 		if (!fmt)
454 			return -EINVAL;
455 	}
456 
457 	if (fsize->index)
458 		return -EINVAL;
459 
460 	fsize->stepwise.min_width = frame_width_min(inst);
461 	fsize->stepwise.max_width = frame_width_max(inst);
462 	fsize->stepwise.step_width = frame_width_step(inst);
463 	fsize->stepwise.min_height = frame_height_min(inst);
464 	fsize->stepwise.max_height = frame_height_max(inst);
465 	fsize->stepwise.step_height = frame_height_step(inst);
466 
467 	return 0;
468 }
469 
470 static int venc_enum_frameintervals(struct file *file, void *fh,
471 				    struct v4l2_frmivalenum *fival)
472 {
473 	struct venus_inst *inst = to_inst(file);
474 	const struct venus_format *fmt;
475 	unsigned int framerate_factor = 1;
476 
477 	fival->type = V4L2_FRMIVAL_TYPE_STEPWISE;
478 
479 	fmt = find_format(inst, fival->pixel_format,
480 			  V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE);
481 	if (!fmt) {
482 		fmt = find_format(inst, fival->pixel_format,
483 				  V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE);
484 		if (!fmt)
485 			return -EINVAL;
486 	}
487 
488 	if (fival->index)
489 		return -EINVAL;
490 
491 	if (!fival->width || !fival->height)
492 		return -EINVAL;
493 
494 	if (fival->width > frame_width_max(inst) ||
495 	    fival->width < frame_width_min(inst) ||
496 	    fival->height > frame_height_max(inst) ||
497 	    fival->height < frame_height_min(inst))
498 		return -EINVAL;
499 
500 	if (IS_V1(inst->core)) {
501 		/* framerate is reported in 1/65535 fps unit */
502 		framerate_factor = (1 << 16);
503 	}
504 
505 	fival->stepwise.min.numerator = 1;
506 	fival->stepwise.min.denominator = frate_max(inst) / framerate_factor;
507 	fival->stepwise.max.numerator = 1;
508 	fival->stepwise.max.denominator = frate_min(inst) / framerate_factor;
509 	fival->stepwise.step.numerator = 1;
510 	fival->stepwise.step.denominator = frate_max(inst) / framerate_factor;
511 
512 	return 0;
513 }
514 
515 static int venc_subscribe_event(struct v4l2_fh *fh,
516 				const struct v4l2_event_subscription *sub)
517 {
518 	switch (sub->type) {
519 	case V4L2_EVENT_EOS:
520 		return v4l2_event_subscribe(fh, sub, 2, NULL);
521 	case V4L2_EVENT_CTRL:
522 		return v4l2_ctrl_subscribe_event(fh, sub);
523 	default:
524 		return -EINVAL;
525 	}
526 }
527 
528 static int
529 venc_encoder_cmd(struct file *file, void *fh, struct v4l2_encoder_cmd *cmd)
530 {
531 	struct venus_inst *inst = to_inst(file);
532 	struct hfi_frame_data fdata = {0};
533 	int ret = 0;
534 
535 	ret = v4l2_m2m_ioctl_try_encoder_cmd(file, fh, cmd);
536 	if (ret)
537 		return ret;
538 
539 	mutex_lock(&inst->lock);
540 
541 	if (cmd->cmd == V4L2_ENC_CMD_STOP &&
542 	    inst->enc_state == VENUS_ENC_STATE_ENCODING) {
543 		/*
544 		 * Implement V4L2_ENC_CMD_STOP by enqueue an empty buffer on
545 		 * encoder input to signal EOS.
546 		 */
547 		if (!(inst->streamon_out && inst->streamon_cap))
548 			goto unlock;
549 
550 		fdata.buffer_type = HFI_BUFFER_INPUT;
551 		fdata.flags |= HFI_BUFFERFLAG_EOS;
552 		fdata.device_addr = 0xdeadb000;
553 
554 		ret = hfi_session_process_buf(inst, &fdata);
555 
556 		inst->enc_state = VENUS_ENC_STATE_DRAIN;
557 	} else if (cmd->cmd == V4L2_ENC_CMD_START) {
558 		if (inst->enc_state == VENUS_ENC_STATE_DRAIN) {
559 			ret = -EBUSY;
560 			goto unlock;
561 		}
562 		if (inst->enc_state == VENUS_ENC_STATE_STOPPED) {
563 			vb2_clear_last_buffer_dequeued(&inst->fh.m2m_ctx->cap_q_ctx.q);
564 			inst->enc_state = VENUS_ENC_STATE_ENCODING;
565 		}
566 	}
567 
568 unlock:
569 	mutex_unlock(&inst->lock);
570 	return ret;
571 }
572 
573 static const struct v4l2_ioctl_ops venc_ioctl_ops = {
574 	.vidioc_querycap = venc_querycap,
575 	.vidioc_enum_fmt_vid_cap = venc_enum_fmt,
576 	.vidioc_enum_fmt_vid_out = venc_enum_fmt,
577 	.vidioc_s_fmt_vid_cap_mplane = venc_s_fmt,
578 	.vidioc_s_fmt_vid_out_mplane = venc_s_fmt,
579 	.vidioc_g_fmt_vid_cap_mplane = venc_g_fmt,
580 	.vidioc_g_fmt_vid_out_mplane = venc_g_fmt,
581 	.vidioc_try_fmt_vid_cap_mplane = venc_try_fmt,
582 	.vidioc_try_fmt_vid_out_mplane = venc_try_fmt,
583 	.vidioc_g_selection = venc_g_selection,
584 	.vidioc_s_selection = venc_s_selection,
585 	.vidioc_reqbufs = v4l2_m2m_ioctl_reqbufs,
586 	.vidioc_querybuf = v4l2_m2m_ioctl_querybuf,
587 	.vidioc_create_bufs = v4l2_m2m_ioctl_create_bufs,
588 	.vidioc_prepare_buf = v4l2_m2m_ioctl_prepare_buf,
589 	.vidioc_qbuf = v4l2_m2m_ioctl_qbuf,
590 	.vidioc_expbuf = v4l2_m2m_ioctl_expbuf,
591 	.vidioc_dqbuf = v4l2_m2m_ioctl_dqbuf,
592 	.vidioc_streamon = v4l2_m2m_ioctl_streamon,
593 	.vidioc_streamoff = v4l2_m2m_ioctl_streamoff,
594 	.vidioc_s_parm = venc_s_parm,
595 	.vidioc_g_parm = venc_g_parm,
596 	.vidioc_enum_framesizes = venc_enum_framesizes,
597 	.vidioc_enum_frameintervals = venc_enum_frameintervals,
598 	.vidioc_subscribe_event = venc_subscribe_event,
599 	.vidioc_unsubscribe_event = v4l2_event_unsubscribe,
600 	.vidioc_try_encoder_cmd = v4l2_m2m_ioctl_try_encoder_cmd,
601 	.vidioc_encoder_cmd = venc_encoder_cmd,
602 };
603 
604 static int venc_pm_get(struct venus_inst *inst)
605 {
606 	struct venus_core *core = inst->core;
607 	struct device *dev = core->dev_enc;
608 	int ret;
609 
610 	mutex_lock(&core->pm_lock);
611 	ret = pm_runtime_resume_and_get(dev);
612 	mutex_unlock(&core->pm_lock);
613 
614 	return ret < 0 ? ret : 0;
615 }
616 
617 static int venc_pm_put(struct venus_inst *inst, bool autosuspend)
618 {
619 	struct venus_core *core = inst->core;
620 	struct device *dev = core->dev_enc;
621 	int ret;
622 
623 	mutex_lock(&core->pm_lock);
624 
625 	if (autosuspend)
626 		ret = pm_runtime_put_autosuspend(dev);
627 	else
628 		ret = pm_runtime_put_sync(dev);
629 
630 	mutex_unlock(&core->pm_lock);
631 
632 	return ret < 0 ? ret : 0;
633 }
634 
635 static int venc_pm_get_put(struct venus_inst *inst)
636 {
637 	struct venus_core *core = inst->core;
638 	struct device *dev = core->dev_enc;
639 	int ret = 0;
640 
641 	mutex_lock(&core->pm_lock);
642 
643 	if (pm_runtime_suspended(dev)) {
644 		ret = pm_runtime_resume_and_get(dev);
645 		if (ret < 0)
646 			goto error;
647 
648 		ret = pm_runtime_put_autosuspend(dev);
649 	}
650 
651 error:
652 	mutex_unlock(&core->pm_lock);
653 
654 	return ret < 0 ? ret : 0;
655 }
656 
657 static void venc_pm_touch(struct venus_inst *inst)
658 {
659 	pm_runtime_mark_last_busy(inst->core->dev_enc);
660 }
661 
662 static int venc_set_properties(struct venus_inst *inst)
663 {
664 	struct venc_controls *ctr = &inst->controls.enc;
665 	struct hfi_intra_period intra_period;
666 	struct hfi_framerate frate;
667 	struct hfi_bitrate brate;
668 	struct hfi_idr_period idrp;
669 	struct hfi_quantization quant;
670 	struct hfi_quantization_range quant_range;
671 	struct hfi_quantization_range_v2 quant_range_v2;
672 	struct hfi_enable en;
673 	struct hfi_ltr_mode ltr_mode;
674 	struct hfi_intra_refresh intra_refresh = {};
675 	u32 ptype, rate_control, bitrate;
676 	u32 profile, level;
677 	int ret;
678 
679 	ret = venus_helper_set_work_mode(inst);
680 	if (ret)
681 		return ret;
682 
683 	ptype = HFI_PROPERTY_CONFIG_FRAME_RATE;
684 	frate.buffer_type = HFI_BUFFER_OUTPUT;
685 	frate.framerate = inst->fps * (1 << 16);
686 
687 	ret = hfi_session_set_property(inst, ptype, &frate);
688 	if (ret)
689 		return ret;
690 
691 	if (inst->fmt_cap->pixfmt == V4L2_PIX_FMT_H264) {
692 		struct hfi_h264_vui_timing_info info;
693 		struct hfi_h264_entropy_control entropy;
694 		struct hfi_h264_db_control deblock;
695 		struct hfi_h264_8x8_transform h264_transform;
696 
697 		ptype = HFI_PROPERTY_PARAM_VENC_H264_VUI_TIMING_INFO;
698 		info.enable = 1;
699 		info.fixed_framerate = 1;
700 		info.time_scale = NSEC_PER_SEC;
701 
702 		ret = hfi_session_set_property(inst, ptype, &info);
703 		if (ret)
704 			return ret;
705 
706 		ptype = HFI_PROPERTY_PARAM_VENC_H264_ENTROPY_CONTROL;
707 		entropy.entropy_mode = venc_v4l2_to_hfi(
708 					  V4L2_CID_MPEG_VIDEO_H264_ENTROPY_MODE,
709 					  ctr->h264_entropy_mode);
710 		entropy.cabac_model = HFI_H264_CABAC_MODEL_0;
711 
712 		ret = hfi_session_set_property(inst, ptype, &entropy);
713 		if (ret)
714 			return ret;
715 
716 		ptype = HFI_PROPERTY_PARAM_VENC_H264_DEBLOCK_CONTROL;
717 		deblock.mode = venc_v4l2_to_hfi(
718 				      V4L2_CID_MPEG_VIDEO_H264_LOOP_FILTER_MODE,
719 				      ctr->h264_loop_filter_mode);
720 		deblock.slice_alpha_offset = ctr->h264_loop_filter_alpha;
721 		deblock.slice_beta_offset = ctr->h264_loop_filter_beta;
722 
723 		ret = hfi_session_set_property(inst, ptype, &deblock);
724 		if (ret)
725 			return ret;
726 
727 		ptype = HFI_PROPERTY_PARAM_VENC_H264_TRANSFORM_8X8;
728 		h264_transform.enable_type = 0;
729 		if (ctr->profile.h264 == V4L2_MPEG_VIDEO_H264_PROFILE_HIGH ||
730 		    ctr->profile.h264 == V4L2_MPEG_VIDEO_H264_PROFILE_CONSTRAINED_HIGH)
731 			h264_transform.enable_type = ctr->h264_8x8_transform;
732 
733 		ret = hfi_session_set_property(inst, ptype, &h264_transform);
734 		if (ret)
735 			return ret;
736 
737 	}
738 
739 	if (inst->fmt_cap->pixfmt == V4L2_PIX_FMT_H264 ||
740 	    inst->fmt_cap->pixfmt == V4L2_PIX_FMT_HEVC) {
741 		/* IDR periodicity, n:
742 		 * n = 0 - only the first I-frame is IDR frame
743 		 * n = 1 - all I-frames will be IDR frames
744 		 * n > 1 - every n-th I-frame will be IDR frame
745 		 */
746 		ptype = HFI_PROPERTY_CONFIG_VENC_IDR_PERIOD;
747 		idrp.idr_period = 0;
748 		ret = hfi_session_set_property(inst, ptype, &idrp);
749 		if (ret)
750 			return ret;
751 	}
752 
753 	if (inst->fmt_cap->pixfmt == V4L2_PIX_FMT_HEVC &&
754 	    ctr->profile.hevc == V4L2_MPEG_VIDEO_HEVC_PROFILE_MAIN_10) {
755 		struct hfi_hdr10_pq_sei hdr10;
756 		unsigned int c;
757 
758 		ptype = HFI_PROPERTY_PARAM_VENC_HDR10_PQ_SEI;
759 
760 		for (c = 0; c < 3; c++) {
761 			hdr10.mastering.display_primaries_x[c] =
762 				ctr->mastering.display_primaries_x[c];
763 			hdr10.mastering.display_primaries_y[c] =
764 				ctr->mastering.display_primaries_y[c];
765 		}
766 
767 		hdr10.mastering.white_point_x = ctr->mastering.white_point_x;
768 		hdr10.mastering.white_point_y = ctr->mastering.white_point_y;
769 		hdr10.mastering.max_display_mastering_luminance =
770 			ctr->mastering.max_display_mastering_luminance;
771 		hdr10.mastering.min_display_mastering_luminance =
772 			ctr->mastering.min_display_mastering_luminance;
773 
774 		hdr10.cll.max_content_light = ctr->cll.max_content_light_level;
775 		hdr10.cll.max_pic_average_light =
776 			ctr->cll.max_pic_average_light_level;
777 
778 		ret = hfi_session_set_property(inst, ptype, &hdr10);
779 		if (ret)
780 			return ret;
781 	}
782 
783 	if (ctr->num_b_frames) {
784 		u32 max_num_b_frames = NUM_B_FRAMES_MAX;
785 
786 		ptype = HFI_PROPERTY_PARAM_VENC_MAX_NUM_B_FRAMES;
787 		ret = hfi_session_set_property(inst, ptype, &max_num_b_frames);
788 		if (ret)
789 			return ret;
790 	}
791 
792 	ptype = HFI_PROPERTY_CONFIG_VENC_INTRA_PERIOD;
793 	intra_period.pframes = ctr->num_p_frames;
794 	intra_period.bframes = ctr->num_b_frames;
795 
796 	ret = hfi_session_set_property(inst, ptype, &intra_period);
797 	if (ret)
798 		return ret;
799 
800 	if (!ctr->rc_enable)
801 		rate_control = HFI_RATE_CONTROL_OFF;
802 	else if (ctr->bitrate_mode == V4L2_MPEG_VIDEO_BITRATE_MODE_VBR)
803 		rate_control = ctr->frame_skip_mode ? HFI_RATE_CONTROL_VBR_VFR :
804 						      HFI_RATE_CONTROL_VBR_CFR;
805 	else if (ctr->bitrate_mode == V4L2_MPEG_VIDEO_BITRATE_MODE_CBR)
806 		rate_control = ctr->frame_skip_mode ? HFI_RATE_CONTROL_CBR_VFR :
807 						      HFI_RATE_CONTROL_CBR_CFR;
808 	else if (ctr->bitrate_mode == V4L2_MPEG_VIDEO_BITRATE_MODE_CQ)
809 		rate_control = HFI_RATE_CONTROL_CQ;
810 
811 	ptype = HFI_PROPERTY_PARAM_VENC_RATE_CONTROL;
812 	ret = hfi_session_set_property(inst, ptype, &rate_control);
813 	if (ret)
814 		return ret;
815 
816 	if (rate_control == HFI_RATE_CONTROL_CQ && ctr->const_quality) {
817 		struct hfi_heic_frame_quality quality = {};
818 
819 		ptype = HFI_PROPERTY_CONFIG_HEIC_FRAME_QUALITY;
820 		quality.frame_quality = ctr->const_quality;
821 		ret = hfi_session_set_property(inst, ptype, &quality);
822 		if (ret)
823 			return ret;
824 	}
825 
826 	if (!ctr->bitrate)
827 		bitrate = 64000;
828 	else
829 		bitrate = ctr->bitrate;
830 
831 	ptype = HFI_PROPERTY_CONFIG_VENC_TARGET_BITRATE;
832 	brate.bitrate = bitrate;
833 	brate.layer_id = 0;
834 
835 	ret = hfi_session_set_property(inst, ptype, &brate);
836 	if (ret)
837 		return ret;
838 
839 	if (inst->fmt_cap->pixfmt == V4L2_PIX_FMT_H264 ||
840 	    inst->fmt_cap->pixfmt == V4L2_PIX_FMT_HEVC) {
841 		ptype = HFI_PROPERTY_CONFIG_VENC_SYNC_FRAME_SEQUENCE_HEADER;
842 		if (ctr->header_mode == V4L2_MPEG_VIDEO_HEADER_MODE_SEPARATE)
843 			en.enable = 0;
844 		else
845 			en.enable = 1;
846 
847 		ret = hfi_session_set_property(inst, ptype, &en);
848 		if (ret)
849 			return ret;
850 	}
851 
852 	if (!ctr->bitrate_peak)
853 		bitrate *= 2;
854 	else
855 		bitrate = ctr->bitrate_peak;
856 
857 	ptype = HFI_PROPERTY_CONFIG_VENC_MAX_BITRATE;
858 	brate.bitrate = bitrate;
859 	brate.layer_id = 0;
860 
861 	ret = hfi_session_set_property(inst, ptype, &brate);
862 	if (ret)
863 		return ret;
864 
865 	ptype = HFI_PROPERTY_PARAM_VENC_SESSION_QP;
866 	if (inst->fmt_cap->pixfmt == V4L2_PIX_FMT_HEVC) {
867 		quant.qp_i = ctr->hevc_i_qp;
868 		quant.qp_p = ctr->hevc_p_qp;
869 		quant.qp_b = ctr->hevc_b_qp;
870 	} else {
871 		quant.qp_i = ctr->h264_i_qp;
872 		quant.qp_p = ctr->h264_p_qp;
873 		quant.qp_b = ctr->h264_b_qp;
874 	}
875 	quant.layer_id = 0;
876 	ret = hfi_session_set_property(inst, ptype, &quant);
877 	if (ret)
878 		return ret;
879 
880 	if (inst->core->res->hfi_version == HFI_VERSION_4XX ||
881 	    inst->core->res->hfi_version == HFI_VERSION_6XX) {
882 		ptype = HFI_PROPERTY_PARAM_VENC_SESSION_QP_RANGE_V2;
883 
884 		if (inst->fmt_cap->pixfmt == V4L2_PIX_FMT_HEVC) {
885 			quant_range_v2.min_qp.qp_packed = ctr->hevc_min_qp;
886 			quant_range_v2.max_qp.qp_packed = ctr->hevc_max_qp;
887 		} else if (inst->fmt_cap->pixfmt == V4L2_PIX_FMT_VP8) {
888 			quant_range_v2.min_qp.qp_packed = ctr->vp8_min_qp;
889 			quant_range_v2.max_qp.qp_packed = ctr->vp8_max_qp;
890 		} else {
891 			quant_range_v2.min_qp.qp_packed = ctr->h264_min_qp;
892 			quant_range_v2.max_qp.qp_packed = ctr->h264_max_qp;
893 		}
894 
895 		ret = hfi_session_set_property(inst, ptype, &quant_range_v2);
896 	} else {
897 		ptype = HFI_PROPERTY_PARAM_VENC_SESSION_QP_RANGE;
898 
899 		if (inst->fmt_cap->pixfmt == V4L2_PIX_FMT_HEVC) {
900 			quant_range.min_qp = ctr->hevc_min_qp;
901 			quant_range.max_qp = ctr->hevc_max_qp;
902 		} else if (inst->fmt_cap->pixfmt == V4L2_PIX_FMT_VP8) {
903 			quant_range.min_qp = ctr->vp8_min_qp;
904 			quant_range.max_qp = ctr->vp8_max_qp;
905 		} else {
906 			quant_range.min_qp = ctr->h264_min_qp;
907 			quant_range.max_qp = ctr->h264_max_qp;
908 		}
909 
910 		quant_range.layer_id = 0;
911 		ret = hfi_session_set_property(inst, ptype, &quant_range);
912 	}
913 
914 	if (ret)
915 		return ret;
916 
917 	ptype = HFI_PROPERTY_PARAM_VENC_LTRMODE;
918 	ltr_mode.ltr_count = ctr->ltr_count;
919 	ltr_mode.ltr_mode = HFI_LTR_MODE_MANUAL;
920 	ltr_mode.trust_mode = 1;
921 	ret = hfi_session_set_property(inst, ptype, &ltr_mode);
922 	if (ret)
923 		return ret;
924 
925 	switch (inst->hfi_codec) {
926 	case HFI_VIDEO_CODEC_H264:
927 		profile = ctr->profile.h264;
928 		level = ctr->level.h264;
929 		break;
930 	case HFI_VIDEO_CODEC_MPEG4:
931 		profile = ctr->profile.mpeg4;
932 		level = ctr->level.mpeg4;
933 		break;
934 	case HFI_VIDEO_CODEC_VP8:
935 		profile = ctr->profile.vp8;
936 		level = 0;
937 		break;
938 	case HFI_VIDEO_CODEC_VP9:
939 		profile = ctr->profile.vp9;
940 		level = ctr->level.vp9;
941 		break;
942 	case HFI_VIDEO_CODEC_HEVC:
943 		profile = ctr->profile.hevc;
944 		level = ctr->level.hevc;
945 		break;
946 	case HFI_VIDEO_CODEC_MPEG2:
947 	default:
948 		profile = 0;
949 		level = 0;
950 		break;
951 	}
952 
953 	ret = venus_helper_set_profile_level(inst, profile, level);
954 	if (ret)
955 		return ret;
956 
957 	if (inst->fmt_cap->pixfmt == V4L2_PIX_FMT_H264 ||
958 	    inst->fmt_cap->pixfmt == V4L2_PIX_FMT_HEVC) {
959 		struct hfi_enable en = {};
960 
961 		ptype = HFI_PROPERTY_PARAM_VENC_H264_GENERATE_AUDNAL;
962 
963 		if (ctr->aud_enable)
964 			en.enable = 1;
965 
966 		ret = hfi_session_set_property(inst, ptype, &en);
967 	}
968 
969 	if ((inst->fmt_cap->pixfmt == V4L2_PIX_FMT_H264 ||
970 	     inst->fmt_cap->pixfmt == V4L2_PIX_FMT_HEVC) &&
971 	    (rate_control == HFI_RATE_CONTROL_CBR_VFR ||
972 	     rate_control == HFI_RATE_CONTROL_CBR_CFR)) {
973 		intra_refresh.mode = HFI_INTRA_REFRESH_NONE;
974 		intra_refresh.cir_mbs = 0;
975 
976 		if (ctr->intra_refresh_period) {
977 			u32 mbs;
978 
979 			mbs = ALIGN(inst->width, 16) * ALIGN(inst->height, 16);
980 			mbs /= 16 * 16;
981 			if (mbs % ctr->intra_refresh_period)
982 				mbs++;
983 			mbs /= ctr->intra_refresh_period;
984 
985 			intra_refresh.cir_mbs = mbs;
986 			if (ctr->intra_refresh_type ==
987 			    V4L2_CID_MPEG_VIDEO_INTRA_REFRESH_PERIOD_TYPE_CYCLIC)
988 				intra_refresh.mode = HFI_INTRA_REFRESH_CYCLIC;
989 			else
990 				intra_refresh.mode = HFI_INTRA_REFRESH_RANDOM;
991 		}
992 
993 		ptype = HFI_PROPERTY_PARAM_VENC_INTRA_REFRESH;
994 
995 		ret = hfi_session_set_property(inst, ptype, &intra_refresh);
996 		if (ret)
997 			return ret;
998 	}
999 
1000 	return 0;
1001 }
1002 
1003 static int venc_init_session(struct venus_inst *inst)
1004 {
1005 	int ret;
1006 
1007 	ret = venus_helper_session_init(inst);
1008 	if (ret == -EALREADY)
1009 		return 0;
1010 	else if (ret)
1011 		return ret;
1012 
1013 	ret = venus_helper_set_stride(inst, inst->out_width,
1014 				      inst->out_height);
1015 	if (ret)
1016 		goto deinit;
1017 
1018 	ret = venus_helper_set_input_resolution(inst, inst->width,
1019 						inst->height);
1020 	if (ret)
1021 		goto deinit;
1022 
1023 	ret = venus_helper_set_output_resolution(inst, inst->width,
1024 						 inst->height,
1025 						 HFI_BUFFER_OUTPUT);
1026 	if (ret)
1027 		goto deinit;
1028 
1029 	ret = venus_helper_set_color_format(inst, inst->fmt_out->pixfmt);
1030 	if (ret)
1031 		goto deinit;
1032 
1033 	ret = venc_set_properties(inst);
1034 	if (ret)
1035 		goto deinit;
1036 
1037 	return 0;
1038 deinit:
1039 	hfi_session_deinit(inst);
1040 	return ret;
1041 }
1042 
1043 static int venc_out_num_buffers(struct venus_inst *inst, unsigned int *num)
1044 {
1045 	struct hfi_buffer_requirements bufreq;
1046 	int ret;
1047 
1048 	ret = venus_helper_get_bufreq(inst, HFI_BUFFER_INPUT, &bufreq);
1049 	if (ret)
1050 		return ret;
1051 
1052 	*num = bufreq.count_actual;
1053 
1054 	return 0;
1055 }
1056 
1057 static int venc_queue_setup(struct vb2_queue *q,
1058 			    unsigned int *num_buffers, unsigned int *num_planes,
1059 			    unsigned int sizes[], struct device *alloc_devs[])
1060 {
1061 	struct venus_inst *inst = vb2_get_drv_priv(q);
1062 	struct venus_core *core = inst->core;
1063 	unsigned int num, min = 4;
1064 	int ret;
1065 
1066 	if (*num_planes) {
1067 		if (q->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE &&
1068 		    *num_planes != inst->fmt_out->num_planes)
1069 			return -EINVAL;
1070 
1071 		if (q->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE &&
1072 		    *num_planes != inst->fmt_cap->num_planes)
1073 			return -EINVAL;
1074 
1075 		if (q->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE &&
1076 		    sizes[0] < inst->input_buf_size)
1077 			return -EINVAL;
1078 
1079 		if (q->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE &&
1080 		    sizes[0] < inst->output_buf_size)
1081 			return -EINVAL;
1082 
1083 		return 0;
1084 	}
1085 
1086 	if (test_bit(0, &core->sys_error)) {
1087 		if (inst->nonblock)
1088 			return -EAGAIN;
1089 
1090 		ret = wait_event_interruptible(core->sys_err_done,
1091 					       !test_bit(0, &core->sys_error));
1092 		if (ret)
1093 			return ret;
1094 	}
1095 
1096 	ret = venc_pm_get(inst);
1097 	if (ret)
1098 		return ret;
1099 
1100 	mutex_lock(&inst->lock);
1101 	ret = venc_init_session(inst);
1102 	mutex_unlock(&inst->lock);
1103 
1104 	if (ret)
1105 		goto put_power;
1106 
1107 	ret = venc_pm_put(inst, false);
1108 	if (ret)
1109 		return ret;
1110 
1111 	switch (q->type) {
1112 	case V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE:
1113 		*num_planes = inst->fmt_out->num_planes;
1114 
1115 		ret = venc_out_num_buffers(inst, &num);
1116 		if (ret)
1117 			break;
1118 
1119 		num = max(num, min);
1120 		*num_buffers = max(*num_buffers, num);
1121 		inst->num_input_bufs = *num_buffers;
1122 
1123 		sizes[0] = venus_helper_get_framesz(inst->fmt_out->pixfmt,
1124 						    inst->out_width,
1125 						    inst->out_height);
1126 		inst->input_buf_size = sizes[0];
1127 		break;
1128 	case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE:
1129 		*num_planes = inst->fmt_cap->num_planes;
1130 		*num_buffers = max(*num_buffers, min);
1131 		inst->num_output_bufs = *num_buffers;
1132 		sizes[0] = venus_helper_get_framesz(inst->fmt_cap->pixfmt,
1133 						    inst->width,
1134 						    inst->height);
1135 		sizes[0] = max(sizes[0], inst->output_buf_size);
1136 		inst->output_buf_size = sizes[0];
1137 		break;
1138 	default:
1139 		ret = -EINVAL;
1140 		break;
1141 	}
1142 
1143 	return ret;
1144 put_power:
1145 	venc_pm_put(inst, false);
1146 	return ret;
1147 }
1148 
1149 static int venc_buf_init(struct vb2_buffer *vb)
1150 {
1151 	struct venus_inst *inst = vb2_get_drv_priv(vb->vb2_queue);
1152 
1153 	inst->buf_count++;
1154 
1155 	return venus_helper_vb2_buf_init(vb);
1156 }
1157 
1158 static void venc_release_session(struct venus_inst *inst)
1159 {
1160 	int ret;
1161 
1162 	venc_pm_get(inst);
1163 
1164 	mutex_lock(&inst->lock);
1165 
1166 	ret = hfi_session_deinit(inst);
1167 	if (ret || inst->session_error)
1168 		hfi_session_abort(inst);
1169 
1170 	mutex_unlock(&inst->lock);
1171 
1172 	venus_pm_load_scale(inst);
1173 	INIT_LIST_HEAD(&inst->registeredbufs);
1174 	venus_pm_release_core(inst);
1175 
1176 	venc_pm_put(inst, false);
1177 }
1178 
1179 static void venc_buf_cleanup(struct vb2_buffer *vb)
1180 {
1181 	struct venus_inst *inst = vb2_get_drv_priv(vb->vb2_queue);
1182 	struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
1183 	struct venus_buffer *buf = to_venus_buffer(vbuf);
1184 
1185 	mutex_lock(&inst->lock);
1186 	if (vb->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE)
1187 		if (!list_empty(&inst->registeredbufs))
1188 			list_del_init(&buf->reg_list);
1189 	mutex_unlock(&inst->lock);
1190 
1191 	inst->buf_count--;
1192 	if (!inst->buf_count)
1193 		venc_release_session(inst);
1194 }
1195 
1196 static int venc_verify_conf(struct venus_inst *inst)
1197 {
1198 	enum hfi_version ver = inst->core->res->hfi_version;
1199 	struct hfi_buffer_requirements bufreq;
1200 	int ret;
1201 
1202 	if (!inst->num_input_bufs || !inst->num_output_bufs)
1203 		return -EINVAL;
1204 
1205 	ret = venus_helper_get_bufreq(inst, HFI_BUFFER_OUTPUT, &bufreq);
1206 	if (ret)
1207 		return ret;
1208 
1209 	if (inst->num_output_bufs < bufreq.count_actual ||
1210 	    inst->num_output_bufs < hfi_bufreq_get_count_min(&bufreq, ver))
1211 		return -EINVAL;
1212 
1213 	ret = venus_helper_get_bufreq(inst, HFI_BUFFER_INPUT, &bufreq);
1214 	if (ret)
1215 		return ret;
1216 
1217 	if (inst->num_input_bufs < bufreq.count_actual ||
1218 	    inst->num_input_bufs < hfi_bufreq_get_count_min(&bufreq, ver))
1219 		return -EINVAL;
1220 
1221 	return 0;
1222 }
1223 
1224 static int venc_start_streaming(struct vb2_queue *q, unsigned int count)
1225 {
1226 	struct venus_inst *inst = vb2_get_drv_priv(q);
1227 	int ret;
1228 
1229 	mutex_lock(&inst->lock);
1230 
1231 	if (q->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE)
1232 		inst->streamon_out = 1;
1233 	else
1234 		inst->streamon_cap = 1;
1235 
1236 	if (!(inst->streamon_out & inst->streamon_cap)) {
1237 		mutex_unlock(&inst->lock);
1238 		return 0;
1239 	}
1240 
1241 	venus_helper_init_instance(inst);
1242 
1243 	inst->sequence_cap = 0;
1244 	inst->sequence_out = 0;
1245 
1246 	ret = venc_pm_get(inst);
1247 	if (ret)
1248 		goto error;
1249 
1250 	ret = venus_pm_acquire_core(inst);
1251 	if (ret)
1252 		goto put_power;
1253 
1254 	ret = venc_pm_put(inst, true);
1255 	if (ret)
1256 		goto error;
1257 
1258 	ret = venc_set_properties(inst);
1259 	if (ret)
1260 		goto error;
1261 
1262 	ret = venc_verify_conf(inst);
1263 	if (ret)
1264 		goto error;
1265 
1266 	ret = venus_helper_set_num_bufs(inst, inst->num_input_bufs,
1267 					inst->num_output_bufs, 0);
1268 	if (ret)
1269 		goto error;
1270 
1271 	ret = venus_helper_vb2_start_streaming(inst);
1272 	if (ret)
1273 		goto error;
1274 
1275 	inst->enc_state = VENUS_ENC_STATE_ENCODING;
1276 
1277 	mutex_unlock(&inst->lock);
1278 
1279 	return 0;
1280 
1281 put_power:
1282 	venc_pm_put(inst, false);
1283 error:
1284 	venus_helper_buffers_done(inst, q->type, VB2_BUF_STATE_QUEUED);
1285 	if (q->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE)
1286 		inst->streamon_out = 0;
1287 	else
1288 		inst->streamon_cap = 0;
1289 	mutex_unlock(&inst->lock);
1290 	return ret;
1291 }
1292 
1293 static void venc_vb2_buf_queue(struct vb2_buffer *vb)
1294 {
1295 	struct venus_inst *inst = vb2_get_drv_priv(vb->vb2_queue);
1296 	struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
1297 
1298 	venc_pm_get_put(inst);
1299 
1300 	mutex_lock(&inst->lock);
1301 
1302 	if (inst->enc_state == VENUS_ENC_STATE_STOPPED) {
1303 		vbuf->sequence = inst->sequence_cap++;
1304 		vbuf->field = V4L2_FIELD_NONE;
1305 		vb2_set_plane_payload(vb, 0, 0);
1306 		v4l2_m2m_buf_done(vbuf, VB2_BUF_STATE_DONE);
1307 		mutex_unlock(&inst->lock);
1308 		return;
1309 	}
1310 
1311 	venus_helper_vb2_buf_queue(vb);
1312 	mutex_unlock(&inst->lock);
1313 }
1314 
1315 static const struct vb2_ops venc_vb2_ops = {
1316 	.queue_setup = venc_queue_setup,
1317 	.buf_init = venc_buf_init,
1318 	.buf_cleanup = venc_buf_cleanup,
1319 	.buf_prepare = venus_helper_vb2_buf_prepare,
1320 	.start_streaming = venc_start_streaming,
1321 	.stop_streaming = venus_helper_vb2_stop_streaming,
1322 	.buf_queue = venc_vb2_buf_queue,
1323 };
1324 
1325 static void venc_buf_done(struct venus_inst *inst, unsigned int buf_type,
1326 			  u32 tag, u32 bytesused, u32 data_offset, u32 flags,
1327 			  u32 hfi_flags, u64 timestamp_us)
1328 {
1329 	struct vb2_v4l2_buffer *vbuf;
1330 	struct vb2_buffer *vb;
1331 	unsigned int type;
1332 
1333 	venc_pm_touch(inst);
1334 
1335 	if (buf_type == HFI_BUFFER_INPUT)
1336 		type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE;
1337 	else
1338 		type = V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE;
1339 
1340 	vbuf = venus_helper_find_buf(inst, type, tag);
1341 	if (!vbuf)
1342 		return;
1343 
1344 	vbuf->flags = flags;
1345 
1346 	if (type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) {
1347 		vb = &vbuf->vb2_buf;
1348 		vb2_set_plane_payload(vb, 0, bytesused + data_offset);
1349 		vb->planes[0].data_offset = data_offset;
1350 		vb->timestamp = timestamp_us * NSEC_PER_USEC;
1351 		vbuf->sequence = inst->sequence_cap++;
1352 		if ((vbuf->flags & V4L2_BUF_FLAG_LAST) &&
1353 		    inst->enc_state == VENUS_ENC_STATE_DRAIN) {
1354 			inst->enc_state = VENUS_ENC_STATE_STOPPED;
1355 		}
1356 	} else {
1357 		vbuf->sequence = inst->sequence_out++;
1358 	}
1359 
1360 	v4l2_m2m_buf_done(vbuf, VB2_BUF_STATE_DONE);
1361 }
1362 
1363 static void venc_event_notify(struct venus_inst *inst, u32 event,
1364 			      struct hfi_event_data *data)
1365 {
1366 	struct device *dev = inst->core->dev_enc;
1367 
1368 	venc_pm_touch(inst);
1369 
1370 	if (event == EVT_SESSION_ERROR) {
1371 		inst->session_error = true;
1372 		venus_helper_vb2_queue_error(inst);
1373 		dev_err(dev, "enc: event session error %x\n", inst->error);
1374 	}
1375 }
1376 
1377 static const struct hfi_inst_ops venc_hfi_ops = {
1378 	.buf_done = venc_buf_done,
1379 	.event_notify = venc_event_notify,
1380 };
1381 
1382 static const struct v4l2_m2m_ops venc_m2m_ops = {
1383 	.device_run = venus_helper_m2m_device_run,
1384 	.job_abort = venus_helper_m2m_job_abort,
1385 };
1386 
1387 static int m2m_queue_init(void *priv, struct vb2_queue *src_vq,
1388 			  struct vb2_queue *dst_vq)
1389 {
1390 	struct venus_inst *inst = priv;
1391 	int ret;
1392 
1393 	src_vq->type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE;
1394 	src_vq->io_modes = VB2_MMAP | VB2_USERPTR | VB2_DMABUF;
1395 	src_vq->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_COPY;
1396 	src_vq->ops = &venc_vb2_ops;
1397 	src_vq->mem_ops = &vb2_dma_contig_memops;
1398 	src_vq->drv_priv = inst;
1399 	src_vq->buf_struct_size = sizeof(struct venus_buffer);
1400 	src_vq->allow_zero_bytesused = 1;
1401 	src_vq->min_buffers_needed = 1;
1402 	src_vq->dev = inst->core->dev;
1403 	src_vq->lock = &inst->ctx_q_lock;
1404 	if (inst->core->res->hfi_version == HFI_VERSION_1XX)
1405 		src_vq->bidirectional = 1;
1406 	ret = vb2_queue_init(src_vq);
1407 	if (ret)
1408 		return ret;
1409 
1410 	dst_vq->type = V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE;
1411 	dst_vq->io_modes = VB2_MMAP | VB2_USERPTR | VB2_DMABUF;
1412 	dst_vq->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_COPY;
1413 	dst_vq->ops = &venc_vb2_ops;
1414 	dst_vq->mem_ops = &vb2_dma_contig_memops;
1415 	dst_vq->drv_priv = inst;
1416 	dst_vq->buf_struct_size = sizeof(struct venus_buffer);
1417 	dst_vq->allow_zero_bytesused = 1;
1418 	dst_vq->min_buffers_needed = 1;
1419 	dst_vq->dev = inst->core->dev;
1420 	dst_vq->lock = &inst->ctx_q_lock;
1421 	return vb2_queue_init(dst_vq);
1422 }
1423 
1424 static void venc_inst_init(struct venus_inst *inst)
1425 {
1426 	inst->fmt_cap = &venc_formats[VENUS_FMT_H264];
1427 	inst->fmt_out = &venc_formats[VENUS_FMT_NV12];
1428 	inst->width = 1280;
1429 	inst->height = ALIGN(720, 32);
1430 	inst->out_width = 1280;
1431 	inst->out_height = 720;
1432 	inst->fps = 15;
1433 	inst->timeperframe.numerator = 1;
1434 	inst->timeperframe.denominator = 15;
1435 	inst->hfi_codec = HFI_VIDEO_CODEC_H264;
1436 }
1437 
1438 static int venc_open(struct file *file)
1439 {
1440 	struct venus_core *core = video_drvdata(file);
1441 	struct venus_inst *inst;
1442 	int ret;
1443 
1444 	inst = kzalloc(sizeof(*inst), GFP_KERNEL);
1445 	if (!inst)
1446 		return -ENOMEM;
1447 
1448 	INIT_LIST_HEAD(&inst->dpbbufs);
1449 	INIT_LIST_HEAD(&inst->registeredbufs);
1450 	INIT_LIST_HEAD(&inst->internalbufs);
1451 	INIT_LIST_HEAD(&inst->list);
1452 	mutex_init(&inst->lock);
1453 	mutex_init(&inst->ctx_q_lock);
1454 
1455 	inst->core = core;
1456 	inst->session_type = VIDC_SESSION_TYPE_ENC;
1457 	inst->clk_data.core_id = VIDC_CORE_ID_DEFAULT;
1458 	inst->core_acquired = false;
1459 	inst->nonblock = file->f_flags & O_NONBLOCK;
1460 
1461 	if (inst->enc_state == VENUS_ENC_STATE_DEINIT)
1462 		inst->enc_state = VENUS_ENC_STATE_INIT;
1463 
1464 	venus_helper_init_instance(inst);
1465 
1466 	ret = venc_ctrl_init(inst);
1467 	if (ret)
1468 		goto err_free;
1469 
1470 	ret = hfi_session_create(inst, &venc_hfi_ops);
1471 	if (ret)
1472 		goto err_ctrl_deinit;
1473 
1474 	venc_inst_init(inst);
1475 
1476 	/*
1477 	 * create m2m device for every instance, the m2m context scheduling
1478 	 * is made by firmware side so we do not need to care about.
1479 	 */
1480 	inst->m2m_dev = v4l2_m2m_init(&venc_m2m_ops);
1481 	if (IS_ERR(inst->m2m_dev)) {
1482 		ret = PTR_ERR(inst->m2m_dev);
1483 		goto err_session_destroy;
1484 	}
1485 
1486 	inst->m2m_ctx = v4l2_m2m_ctx_init(inst->m2m_dev, inst, m2m_queue_init);
1487 	if (IS_ERR(inst->m2m_ctx)) {
1488 		ret = PTR_ERR(inst->m2m_ctx);
1489 		goto err_m2m_release;
1490 	}
1491 
1492 	v4l2_fh_init(&inst->fh, core->vdev_enc);
1493 
1494 	inst->fh.ctrl_handler = &inst->ctrl_handler;
1495 	v4l2_fh_add(&inst->fh);
1496 	inst->fh.m2m_ctx = inst->m2m_ctx;
1497 	file->private_data = &inst->fh;
1498 
1499 	return 0;
1500 
1501 err_m2m_release:
1502 	v4l2_m2m_release(inst->m2m_dev);
1503 err_session_destroy:
1504 	hfi_session_destroy(inst);
1505 err_ctrl_deinit:
1506 	venc_ctrl_deinit(inst);
1507 err_free:
1508 	kfree(inst);
1509 	return ret;
1510 }
1511 
1512 static int venc_close(struct file *file)
1513 {
1514 	struct venus_inst *inst = to_inst(file);
1515 
1516 	venc_pm_get(inst);
1517 
1518 	v4l2_m2m_ctx_release(inst->m2m_ctx);
1519 	v4l2_m2m_release(inst->m2m_dev);
1520 	venc_ctrl_deinit(inst);
1521 	hfi_session_destroy(inst);
1522 	mutex_destroy(&inst->lock);
1523 	mutex_destroy(&inst->ctx_q_lock);
1524 	v4l2_fh_del(&inst->fh);
1525 	v4l2_fh_exit(&inst->fh);
1526 
1527 	inst->enc_state = VENUS_ENC_STATE_DEINIT;
1528 
1529 	venc_pm_put(inst, false);
1530 
1531 	kfree(inst);
1532 	return 0;
1533 }
1534 
1535 static const struct v4l2_file_operations venc_fops = {
1536 	.owner = THIS_MODULE,
1537 	.open = venc_open,
1538 	.release = venc_close,
1539 	.unlocked_ioctl = video_ioctl2,
1540 	.poll = v4l2_m2m_fop_poll,
1541 	.mmap = v4l2_m2m_fop_mmap,
1542 };
1543 
1544 static int venc_probe(struct platform_device *pdev)
1545 {
1546 	struct device *dev = &pdev->dev;
1547 	struct video_device *vdev;
1548 	struct venus_core *core;
1549 	int ret;
1550 
1551 	if (!dev->parent)
1552 		return -EPROBE_DEFER;
1553 
1554 	core = dev_get_drvdata(dev->parent);
1555 	if (!core)
1556 		return -EPROBE_DEFER;
1557 
1558 	platform_set_drvdata(pdev, core);
1559 
1560 	if (core->pm_ops->venc_get) {
1561 		ret = core->pm_ops->venc_get(dev);
1562 		if (ret)
1563 			return ret;
1564 	}
1565 
1566 	vdev = video_device_alloc();
1567 	if (!vdev)
1568 		return -ENOMEM;
1569 
1570 	strscpy(vdev->name, "qcom-venus-encoder", sizeof(vdev->name));
1571 	vdev->release = video_device_release;
1572 	vdev->fops = &venc_fops;
1573 	vdev->ioctl_ops = &venc_ioctl_ops;
1574 	vdev->vfl_dir = VFL_DIR_M2M;
1575 	vdev->v4l2_dev = &core->v4l2_dev;
1576 	vdev->device_caps = V4L2_CAP_VIDEO_M2M_MPLANE | V4L2_CAP_STREAMING;
1577 
1578 	ret = video_register_device(vdev, VFL_TYPE_VIDEO, -1);
1579 	if (ret)
1580 		goto err_vdev_release;
1581 
1582 	core->vdev_enc = vdev;
1583 	core->dev_enc = dev;
1584 
1585 	video_set_drvdata(vdev, core);
1586 	pm_runtime_set_autosuspend_delay(dev, 2000);
1587 	pm_runtime_use_autosuspend(dev);
1588 	pm_runtime_enable(dev);
1589 
1590 	return 0;
1591 
1592 err_vdev_release:
1593 	video_device_release(vdev);
1594 	return ret;
1595 }
1596 
1597 static void venc_remove(struct platform_device *pdev)
1598 {
1599 	struct venus_core *core = dev_get_drvdata(pdev->dev.parent);
1600 
1601 	video_unregister_device(core->vdev_enc);
1602 	pm_runtime_disable(core->dev_enc);
1603 
1604 	if (core->pm_ops->venc_put)
1605 		core->pm_ops->venc_put(core->dev_enc);
1606 }
1607 
1608 static __maybe_unused int venc_runtime_suspend(struct device *dev)
1609 {
1610 	struct venus_core *core = dev_get_drvdata(dev);
1611 	const struct venus_pm_ops *pm_ops = core->pm_ops;
1612 	int ret = 0;
1613 
1614 	if (pm_ops->venc_power)
1615 		ret = pm_ops->venc_power(dev, POWER_OFF);
1616 
1617 	return ret;
1618 }
1619 
1620 static __maybe_unused int venc_runtime_resume(struct device *dev)
1621 {
1622 	struct venus_core *core = dev_get_drvdata(dev);
1623 	const struct venus_pm_ops *pm_ops = core->pm_ops;
1624 	int ret = 0;
1625 
1626 	if (pm_ops->venc_power)
1627 		ret = pm_ops->venc_power(dev, POWER_ON);
1628 
1629 	return ret;
1630 }
1631 
1632 static const struct dev_pm_ops venc_pm_ops = {
1633 	SET_SYSTEM_SLEEP_PM_OPS(pm_runtime_force_suspend,
1634 				pm_runtime_force_resume)
1635 	SET_RUNTIME_PM_OPS(venc_runtime_suspend, venc_runtime_resume, NULL)
1636 };
1637 
1638 static const struct of_device_id venc_dt_match[] = {
1639 	{ .compatible = "venus-encoder" },
1640 	{ }
1641 };
1642 MODULE_DEVICE_TABLE(of, venc_dt_match);
1643 
1644 static struct platform_driver qcom_venus_enc_driver = {
1645 	.probe = venc_probe,
1646 	.remove_new = venc_remove,
1647 	.driver = {
1648 		.name = "qcom-venus-encoder",
1649 		.of_match_table = venc_dt_match,
1650 		.pm = &venc_pm_ops,
1651 	},
1652 };
1653 module_platform_driver(qcom_venus_enc_driver);
1654 
1655 MODULE_ALIAS("platform:qcom-venus-encoder");
1656 MODULE_DESCRIPTION("Qualcomm Venus video encoder driver");
1657 MODULE_LICENSE("GPL v2");
1658