xref: /linux/drivers/media/platform/amphion/vdec.c (revision 55d0969c451159cff86949b38c39171cab962069)
1 // SPDX-License-Identifier: GPL-2.0
2 /*
3  * Copyright 2020-2021 NXP
4  */
5 
6 #include <linux/init.h>
7 #include <linux/interconnect.h>
8 #include <linux/ioctl.h>
9 #include <linux/list.h>
10 #include <linux/kernel.h>
11 #include <linux/module.h>
12 #include <linux/vmalloc.h>
13 #include <linux/videodev2.h>
14 #include <media/v4l2-device.h>
15 #include <media/v4l2-event.h>
16 #include <media/v4l2-mem2mem.h>
17 #include <media/v4l2-ioctl.h>
18 #include <media/videobuf2-v4l2.h>
19 #include <media/videobuf2-dma-contig.h>
20 #include <media/videobuf2-vmalloc.h>
21 #include "vpu.h"
22 #include "vpu_defs.h"
23 #include "vpu_core.h"
24 #include "vpu_helpers.h"
25 #include "vpu_v4l2.h"
26 #include "vpu_cmds.h"
27 #include "vpu_rpc.h"
28 
29 #define VDEC_MIN_BUFFER_CAP		8
30 #define VDEC_MIN_BUFFER_OUT		8
31 
32 struct vdec_fs_info {
33 	char name[8];
34 	u32 type;
35 	u32 max_count;
36 	u32 req_count;
37 	u32 count;
38 	u32 index;
39 	u32 size;
40 	struct vpu_buffer buffer[32];
41 	u32 tag;
42 };
43 
44 struct vdec_t {
45 	u32 seq_hdr_found;
46 	struct vpu_buffer udata;
47 	struct vpu_decode_params params;
48 	struct vpu_dec_codec_info codec_info;
49 	enum vpu_codec_state state;
50 
51 	struct vpu_vb2_buffer *slots[VB2_MAX_FRAME];
52 	u32 req_frame_count;
53 	struct vdec_fs_info mbi;
54 	struct vdec_fs_info dcp;
55 	u32 seq_tag;
56 
57 	bool reset_codec;
58 	bool fixed_fmt;
59 	u32 decoded_frame_count;
60 	u32 display_frame_count;
61 	u32 sequence;
62 	u32 eos_received;
63 	bool is_source_changed;
64 	u32 source_change;
65 	u32 drain;
66 	bool aborting;
67 };
68 
69 static const struct vpu_format vdec_formats[] = {
70 	{
71 		.pixfmt = V4L2_PIX_FMT_NV12M_8L128,
72 		.mem_planes = 2,
73 		.comp_planes = 2,
74 		.type = V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE,
75 		.sibling = V4L2_PIX_FMT_NV12_8L128,
76 	},
77 	{
78 		.pixfmt = V4L2_PIX_FMT_NV12_8L128,
79 		.mem_planes = 1,
80 		.comp_planes = 2,
81 		.type = V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE,
82 		.sibling = V4L2_PIX_FMT_NV12M_8L128,
83 	},
84 	{
85 		.pixfmt = V4L2_PIX_FMT_NV12M_10BE_8L128,
86 		.mem_planes = 2,
87 		.comp_planes = 2,
88 		.type = V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE,
89 		.sibling = V4L2_PIX_FMT_NV12_10BE_8L128,
90 	},
91 	{
92 		.pixfmt = V4L2_PIX_FMT_NV12_10BE_8L128,
93 		.mem_planes = 1,
94 		.comp_planes = 2,
95 		.type = V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE,
96 		.sibling = V4L2_PIX_FMT_NV12M_10BE_8L128
97 	},
98 	{
99 		.pixfmt = V4L2_PIX_FMT_H264,
100 		.mem_planes = 1,
101 		.comp_planes = 1,
102 		.type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE,
103 		.flags = V4L2_FMT_FLAG_DYN_RESOLUTION | V4L2_FMT_FLAG_COMPRESSED
104 	},
105 	{
106 		.pixfmt = V4L2_PIX_FMT_H264_MVC,
107 		.mem_planes = 1,
108 		.comp_planes = 1,
109 		.type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE,
110 		.flags = V4L2_FMT_FLAG_DYN_RESOLUTION | V4L2_FMT_FLAG_COMPRESSED
111 	},
112 	{
113 		.pixfmt = V4L2_PIX_FMT_HEVC,
114 		.mem_planes = 1,
115 		.comp_planes = 1,
116 		.type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE,
117 		.flags = V4L2_FMT_FLAG_DYN_RESOLUTION | V4L2_FMT_FLAG_COMPRESSED
118 	},
119 	{
120 		.pixfmt = V4L2_PIX_FMT_VC1_ANNEX_G,
121 		.mem_planes = 1,
122 		.comp_planes = 1,
123 		.type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE,
124 		.flags = V4L2_FMT_FLAG_DYN_RESOLUTION | V4L2_FMT_FLAG_COMPRESSED
125 	},
126 	{
127 		.pixfmt = V4L2_PIX_FMT_VC1_ANNEX_L,
128 		.mem_planes = 1,
129 		.comp_planes = 1,
130 		.type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE,
131 		.flags = V4L2_FMT_FLAG_COMPRESSED
132 	},
133 	{
134 		.pixfmt = V4L2_PIX_FMT_MPEG2,
135 		.mem_planes = 1,
136 		.comp_planes = 1,
137 		.type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE,
138 		.flags = V4L2_FMT_FLAG_DYN_RESOLUTION | V4L2_FMT_FLAG_COMPRESSED
139 	},
140 	{
141 		.pixfmt = V4L2_PIX_FMT_MPEG4,
142 		.mem_planes = 1,
143 		.comp_planes = 1,
144 		.type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE,
145 		.flags = V4L2_FMT_FLAG_DYN_RESOLUTION | V4L2_FMT_FLAG_COMPRESSED
146 	},
147 	{
148 		.pixfmt = V4L2_PIX_FMT_XVID,
149 		.mem_planes = 1,
150 		.comp_planes = 1,
151 		.type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE,
152 		.flags = V4L2_FMT_FLAG_DYN_RESOLUTION | V4L2_FMT_FLAG_COMPRESSED
153 	},
154 	{
155 		.pixfmt = V4L2_PIX_FMT_VP8,
156 		.mem_planes = 1,
157 		.comp_planes = 1,
158 		.type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE,
159 		.flags = V4L2_FMT_FLAG_DYN_RESOLUTION | V4L2_FMT_FLAG_COMPRESSED
160 	},
161 	{
162 		.pixfmt = V4L2_PIX_FMT_H263,
163 		.mem_planes = 1,
164 		.comp_planes = 1,
165 		.type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE,
166 		.flags = V4L2_FMT_FLAG_DYN_RESOLUTION | V4L2_FMT_FLAG_COMPRESSED
167 	},
168 	{
169 		.pixfmt = V4L2_PIX_FMT_SPK,
170 		.mem_planes = 1,
171 		.comp_planes = 1,
172 		.type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE,
173 		.flags = V4L2_FMT_FLAG_DYN_RESOLUTION | V4L2_FMT_FLAG_COMPRESSED
174 	},
175 	{
176 		.pixfmt = V4L2_PIX_FMT_RV30,
177 		.mem_planes = 1,
178 		.comp_planes = 1,
179 		.type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE,
180 		.flags = V4L2_FMT_FLAG_DYN_RESOLUTION | V4L2_FMT_FLAG_COMPRESSED
181 	},
182 	{
183 		.pixfmt = V4L2_PIX_FMT_RV40,
184 		.mem_planes = 1,
185 		.comp_planes = 1,
186 		.type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE,
187 		.flags = V4L2_FMT_FLAG_DYN_RESOLUTION | V4L2_FMT_FLAG_COMPRESSED
188 	},
189 	{0, 0, 0, 0},
190 };
191 
192 static int vdec_op_s_ctrl(struct v4l2_ctrl *ctrl)
193 {
194 	struct vpu_inst *inst = ctrl_to_inst(ctrl);
195 	struct vdec_t *vdec = inst->priv;
196 	int ret = 0;
197 
198 	switch (ctrl->id) {
199 	case V4L2_CID_MPEG_VIDEO_DEC_DISPLAY_DELAY_ENABLE:
200 		vdec->params.display_delay_enable = ctrl->val;
201 		break;
202 	case V4L2_CID_MPEG_VIDEO_DEC_DISPLAY_DELAY:
203 		vdec->params.display_delay = ctrl->val;
204 		break;
205 	default:
206 		ret = -EINVAL;
207 		break;
208 	}
209 
210 	return ret;
211 }
212 
213 static const struct v4l2_ctrl_ops vdec_ctrl_ops = {
214 	.s_ctrl = vdec_op_s_ctrl,
215 	.g_volatile_ctrl = vpu_helper_g_volatile_ctrl,
216 };
217 
218 static int vdec_ctrl_init(struct vpu_inst *inst)
219 {
220 	struct v4l2_ctrl *ctrl;
221 	int ret;
222 
223 	ret = v4l2_ctrl_handler_init(&inst->ctrl_handler, 20);
224 	if (ret)
225 		return ret;
226 
227 	v4l2_ctrl_new_std(&inst->ctrl_handler, &vdec_ctrl_ops,
228 			  V4L2_CID_MPEG_VIDEO_DEC_DISPLAY_DELAY,
229 			  0, 0, 1, 0);
230 
231 	v4l2_ctrl_new_std(&inst->ctrl_handler, &vdec_ctrl_ops,
232 			  V4L2_CID_MPEG_VIDEO_DEC_DISPLAY_DELAY_ENABLE,
233 			  0, 1, 1, 0);
234 
235 	ctrl = v4l2_ctrl_new_std(&inst->ctrl_handler, &vdec_ctrl_ops,
236 				 V4L2_CID_MIN_BUFFERS_FOR_CAPTURE, 1, 32, 1, 2);
237 	if (ctrl)
238 		ctrl->flags |= V4L2_CTRL_FLAG_VOLATILE;
239 
240 	ctrl = v4l2_ctrl_new_std(&inst->ctrl_handler, &vdec_ctrl_ops,
241 				 V4L2_CID_MIN_BUFFERS_FOR_OUTPUT, 1, 32, 1, 2);
242 	if (ctrl)
243 		ctrl->flags |= V4L2_CTRL_FLAG_VOLATILE;
244 
245 	if (inst->ctrl_handler.error) {
246 		ret = inst->ctrl_handler.error;
247 		v4l2_ctrl_handler_free(&inst->ctrl_handler);
248 		return ret;
249 	}
250 
251 	ret = v4l2_ctrl_handler_setup(&inst->ctrl_handler);
252 	if (ret) {
253 		dev_err(inst->dev, "[%d] setup ctrls fail, ret = %d\n", inst->id, ret);
254 		v4l2_ctrl_handler_free(&inst->ctrl_handler);
255 		return ret;
256 	}
257 
258 	return 0;
259 }
260 
261 static void vdec_handle_resolution_change(struct vpu_inst *inst)
262 {
263 	struct vdec_t *vdec = inst->priv;
264 	struct vb2_queue *q;
265 
266 	if (!inst->fh.m2m_ctx)
267 		return;
268 
269 	if (inst->state != VPU_CODEC_STATE_DYAMIC_RESOLUTION_CHANGE)
270 		return;
271 	if (!vdec->source_change)
272 		return;
273 
274 	q = v4l2_m2m_get_dst_vq(inst->fh.m2m_ctx);
275 	if (!list_empty(&q->done_list))
276 		return;
277 
278 	vdec->source_change--;
279 	vpu_notify_source_change(inst);
280 	vpu_set_last_buffer_dequeued(inst, false);
281 }
282 
283 static int vdec_update_state(struct vpu_inst *inst, enum vpu_codec_state state, u32 force)
284 {
285 	struct vdec_t *vdec = inst->priv;
286 	enum vpu_codec_state pre_state = inst->state;
287 
288 	if (state == VPU_CODEC_STATE_SEEK) {
289 		if (inst->state == VPU_CODEC_STATE_DYAMIC_RESOLUTION_CHANGE)
290 			vdec->state = inst->state;
291 		else
292 			vdec->state = VPU_CODEC_STATE_ACTIVE;
293 	}
294 	if (inst->state != VPU_CODEC_STATE_SEEK || force)
295 		inst->state = state;
296 	else if (state == VPU_CODEC_STATE_DYAMIC_RESOLUTION_CHANGE)
297 		vdec->state = VPU_CODEC_STATE_DYAMIC_RESOLUTION_CHANGE;
298 
299 	if (inst->state != pre_state)
300 		vpu_trace(inst->dev, "[%d] %s -> %s\n", inst->id,
301 			  vpu_codec_state_name(pre_state), vpu_codec_state_name(inst->state));
302 
303 	if (inst->state == VPU_CODEC_STATE_DYAMIC_RESOLUTION_CHANGE)
304 		vdec_handle_resolution_change(inst);
305 
306 	return 0;
307 }
308 
309 static void vdec_set_last_buffer_dequeued(struct vpu_inst *inst)
310 {
311 	struct vdec_t *vdec = inst->priv;
312 
313 	if (inst->state == VPU_CODEC_STATE_DYAMIC_RESOLUTION_CHANGE)
314 		return;
315 
316 	if (vdec->eos_received) {
317 		if (!vpu_set_last_buffer_dequeued(inst, true)) {
318 			vdec->eos_received--;
319 			vdec_update_state(inst, VPU_CODEC_STATE_DRAIN, 0);
320 		}
321 	}
322 }
323 
324 static int vdec_querycap(struct file *file, void *fh, struct v4l2_capability *cap)
325 {
326 	strscpy(cap->driver, "amphion-vpu", sizeof(cap->driver));
327 	strscpy(cap->card, "amphion vpu decoder", sizeof(cap->card));
328 	strscpy(cap->bus_info, "platform: amphion-vpu", sizeof(cap->bus_info));
329 
330 	return 0;
331 }
332 
333 static int vdec_enum_fmt(struct file *file, void *fh, struct v4l2_fmtdesc *f)
334 {
335 	struct vpu_inst *inst = to_inst(file);
336 	struct vdec_t *vdec = inst->priv;
337 	const struct vpu_format *fmt;
338 	int ret = -EINVAL;
339 
340 	vpu_inst_lock(inst);
341 	if (V4L2_TYPE_IS_CAPTURE(f->type) && vdec->fixed_fmt) {
342 		fmt = vpu_get_format(inst, f->type);
343 		if (f->index == 1)
344 			fmt = vpu_helper_find_sibling(inst, f->type, fmt->pixfmt);
345 		if (f->index > 1)
346 			fmt = NULL;
347 	} else {
348 		fmt = vpu_helper_enum_format(inst, f->type, f->index);
349 	}
350 	if (!fmt)
351 		goto exit;
352 
353 	memset(f->reserved, 0, sizeof(f->reserved));
354 	f->pixelformat = fmt->pixfmt;
355 	f->flags = fmt->flags;
356 	ret = 0;
357 exit:
358 	vpu_inst_unlock(inst);
359 	return ret;
360 }
361 
362 static int vdec_g_fmt(struct file *file, void *fh, struct v4l2_format *f)
363 {
364 	struct vpu_inst *inst = to_inst(file);
365 	struct vdec_t *vdec = inst->priv;
366 	struct v4l2_pix_format_mplane *pixmp = &f->fmt.pix_mp;
367 	struct vpu_format *cur_fmt;
368 	int i;
369 
370 	vpu_inst_lock(inst);
371 	cur_fmt = vpu_get_format(inst, f->type);
372 
373 	pixmp->pixelformat = cur_fmt->pixfmt;
374 	pixmp->num_planes = cur_fmt->mem_planes;
375 	pixmp->width = cur_fmt->width;
376 	pixmp->height = cur_fmt->height;
377 	pixmp->field = cur_fmt->field;
378 	pixmp->flags = cur_fmt->flags;
379 	for (i = 0; i < pixmp->num_planes; i++) {
380 		pixmp->plane_fmt[i].bytesperline = cur_fmt->bytesperline[i];
381 		pixmp->plane_fmt[i].sizeimage = vpu_get_fmt_plane_size(cur_fmt, i);
382 	}
383 
384 	f->fmt.pix_mp.colorspace = vdec->codec_info.color_primaries;
385 	f->fmt.pix_mp.xfer_func = vdec->codec_info.transfer_chars;
386 	f->fmt.pix_mp.ycbcr_enc = vdec->codec_info.matrix_coeffs;
387 	f->fmt.pix_mp.quantization = vdec->codec_info.full_range;
388 	vpu_inst_unlock(inst);
389 
390 	return 0;
391 }
392 
393 static int vdec_try_fmt(struct file *file, void *fh, struct v4l2_format *f)
394 {
395 	struct vpu_inst *inst = to_inst(file);
396 	struct vdec_t *vdec = inst->priv;
397 	struct vpu_format fmt;
398 
399 	vpu_inst_lock(inst);
400 	if (V4L2_TYPE_IS_CAPTURE(f->type) && vdec->fixed_fmt) {
401 		struct vpu_format *cap_fmt = vpu_get_format(inst, f->type);
402 
403 		if (!vpu_helper_match_format(inst, cap_fmt->type, cap_fmt->pixfmt,
404 					     f->fmt.pix_mp.pixelformat))
405 			f->fmt.pix_mp.pixelformat = cap_fmt->pixfmt;
406 	}
407 
408 	vpu_try_fmt_common(inst, f, &fmt);
409 
410 	if (vdec->fixed_fmt) {
411 		f->fmt.pix_mp.colorspace = vdec->codec_info.color_primaries;
412 		f->fmt.pix_mp.xfer_func = vdec->codec_info.transfer_chars;
413 		f->fmt.pix_mp.ycbcr_enc = vdec->codec_info.matrix_coeffs;
414 		f->fmt.pix_mp.quantization = vdec->codec_info.full_range;
415 	} else {
416 		f->fmt.pix_mp.colorspace = V4L2_COLORSPACE_DEFAULT;
417 		f->fmt.pix_mp.xfer_func = V4L2_XFER_FUNC_DEFAULT;
418 		f->fmt.pix_mp.ycbcr_enc = V4L2_YCBCR_ENC_DEFAULT;
419 		f->fmt.pix_mp.quantization = V4L2_QUANTIZATION_DEFAULT;
420 	}
421 	vpu_inst_unlock(inst);
422 
423 	return 0;
424 }
425 
426 static int vdec_s_fmt_common(struct vpu_inst *inst, struct v4l2_format *f)
427 {
428 	struct v4l2_pix_format_mplane *pixmp = &f->fmt.pix_mp;
429 	struct vpu_format fmt;
430 	struct vpu_format *cur_fmt;
431 	struct vb2_queue *q;
432 	struct vdec_t *vdec = inst->priv;
433 	int i;
434 
435 	if (!inst->fh.m2m_ctx)
436 		return -EINVAL;
437 
438 	q = v4l2_m2m_get_vq(inst->fh.m2m_ctx, f->type);
439 	if (!q)
440 		return -EINVAL;
441 	if (vb2_is_busy(q))
442 		return -EBUSY;
443 
444 	if (vpu_try_fmt_common(inst, f, &fmt))
445 		return -EINVAL;
446 
447 	cur_fmt = vpu_get_format(inst, f->type);
448 	if (V4L2_TYPE_IS_OUTPUT(f->type) && inst->state != VPU_CODEC_STATE_DEINIT) {
449 		if (cur_fmt->pixfmt != fmt.pixfmt) {
450 			vdec->reset_codec = true;
451 			vdec->fixed_fmt = false;
452 		}
453 	}
454 	if (V4L2_TYPE_IS_OUTPUT(f->type) || !vdec->fixed_fmt) {
455 		memcpy(cur_fmt, &fmt, sizeof(*cur_fmt));
456 	} else {
457 		if (vpu_helper_match_format(inst, f->type, cur_fmt->pixfmt, pixmp->pixelformat)) {
458 			cur_fmt->pixfmt = fmt.pixfmt;
459 			cur_fmt->mem_planes = fmt.mem_planes;
460 		}
461 		pixmp->pixelformat = cur_fmt->pixfmt;
462 		pixmp->num_planes = cur_fmt->mem_planes;
463 		pixmp->width = cur_fmt->width;
464 		pixmp->height = cur_fmt->height;
465 		for (i = 0; i < pixmp->num_planes; i++) {
466 			pixmp->plane_fmt[i].bytesperline = cur_fmt->bytesperline[i];
467 			pixmp->plane_fmt[i].sizeimage = vpu_get_fmt_plane_size(cur_fmt, i);
468 		}
469 		pixmp->field = cur_fmt->field;
470 	}
471 
472 	if (!vdec->fixed_fmt) {
473 		if (V4L2_TYPE_IS_OUTPUT(f->type)) {
474 			vdec->params.codec_format = cur_fmt->pixfmt;
475 			vdec->codec_info.color_primaries = f->fmt.pix_mp.colorspace;
476 			vdec->codec_info.transfer_chars = f->fmt.pix_mp.xfer_func;
477 			vdec->codec_info.matrix_coeffs = f->fmt.pix_mp.ycbcr_enc;
478 			vdec->codec_info.full_range = f->fmt.pix_mp.quantization;
479 		} else {
480 			vdec->params.output_format = cur_fmt->pixfmt;
481 			inst->crop.left = 0;
482 			inst->crop.top = 0;
483 			inst->crop.width = cur_fmt->width;
484 			inst->crop.height = cur_fmt->height;
485 		}
486 	}
487 
488 	vpu_trace(inst->dev, "[%d] %c%c%c%c %dx%d\n", inst->id,
489 		  f->fmt.pix_mp.pixelformat,
490 		  f->fmt.pix_mp.pixelformat >> 8,
491 		  f->fmt.pix_mp.pixelformat >> 16,
492 		  f->fmt.pix_mp.pixelformat >> 24,
493 		  f->fmt.pix_mp.width,
494 		  f->fmt.pix_mp.height);
495 
496 	return 0;
497 }
498 
499 static int vdec_s_fmt(struct file *file, void *fh, struct v4l2_format *f)
500 {
501 	struct vpu_inst *inst = to_inst(file);
502 	struct v4l2_pix_format_mplane *pixmp = &f->fmt.pix_mp;
503 	struct vdec_t *vdec = inst->priv;
504 	int ret = 0;
505 
506 	vpu_inst_lock(inst);
507 	ret = vdec_s_fmt_common(inst, f);
508 	if (ret)
509 		goto exit;
510 
511 	if (V4L2_TYPE_IS_OUTPUT(f->type) && !vdec->fixed_fmt) {
512 		struct v4l2_format fc;
513 
514 		memset(&fc, 0, sizeof(fc));
515 		fc.type = inst->cap_format.type;
516 		fc.fmt.pix_mp.pixelformat = inst->cap_format.pixfmt;
517 		fc.fmt.pix_mp.width = pixmp->width;
518 		fc.fmt.pix_mp.height = pixmp->height;
519 		vdec_s_fmt_common(inst, &fc);
520 	}
521 
522 	f->fmt.pix_mp.colorspace = vdec->codec_info.color_primaries;
523 	f->fmt.pix_mp.xfer_func = vdec->codec_info.transfer_chars;
524 	f->fmt.pix_mp.ycbcr_enc = vdec->codec_info.matrix_coeffs;
525 	f->fmt.pix_mp.quantization = vdec->codec_info.full_range;
526 
527 exit:
528 	vpu_inst_unlock(inst);
529 	return ret;
530 }
531 
532 static int vdec_g_selection(struct file *file, void *fh, struct v4l2_selection *s)
533 {
534 	struct vpu_inst *inst = to_inst(file);
535 
536 	if (s->type != V4L2_BUF_TYPE_VIDEO_CAPTURE && s->type != V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE)
537 		return -EINVAL;
538 
539 	switch (s->target) {
540 	case V4L2_SEL_TGT_COMPOSE:
541 	case V4L2_SEL_TGT_COMPOSE_DEFAULT:
542 	case V4L2_SEL_TGT_COMPOSE_PADDED:
543 		s->r = inst->crop;
544 		break;
545 	case V4L2_SEL_TGT_COMPOSE_BOUNDS:
546 		s->r.left = 0;
547 		s->r.top = 0;
548 		s->r.width = inst->cap_format.width;
549 		s->r.height = inst->cap_format.height;
550 		break;
551 	default:
552 		return -EINVAL;
553 	}
554 
555 	return 0;
556 }
557 
558 static int vdec_drain(struct vpu_inst *inst)
559 {
560 	struct vdec_t *vdec = inst->priv;
561 
562 	if (!inst->fh.m2m_ctx)
563 		return 0;
564 
565 	if (!vdec->drain)
566 		return 0;
567 
568 	if (!vpu_is_source_empty(inst))
569 		return 0;
570 
571 	if (!vdec->params.frame_count) {
572 		vpu_set_last_buffer_dequeued(inst, true);
573 		return 0;
574 	}
575 
576 	vpu_iface_add_scode(inst, SCODE_PADDING_EOS);
577 	vdec->params.end_flag = 1;
578 	vpu_iface_set_decode_params(inst, &vdec->params, 1);
579 	vdec->drain = 0;
580 	vpu_trace(inst->dev, "[%d] frame_count = %d\n", inst->id, vdec->params.frame_count);
581 
582 	return 0;
583 }
584 
585 static int vdec_cmd_start(struct vpu_inst *inst)
586 {
587 	struct vdec_t *vdec = inst->priv;
588 
589 	switch (inst->state) {
590 	case VPU_CODEC_STATE_STARTED:
591 	case VPU_CODEC_STATE_DRAIN:
592 	case VPU_CODEC_STATE_DYAMIC_RESOLUTION_CHANGE:
593 		vdec_update_state(inst, VPU_CODEC_STATE_ACTIVE, 0);
594 		break;
595 	default:
596 		break;
597 	}
598 	vpu_process_capture_buffer(inst);
599 	if (vdec->eos_received)
600 		vdec_set_last_buffer_dequeued(inst);
601 	return 0;
602 }
603 
604 static int vdec_cmd_stop(struct vpu_inst *inst)
605 {
606 	struct vdec_t *vdec = inst->priv;
607 
608 	vpu_trace(inst->dev, "[%d]\n", inst->id);
609 
610 	if (inst->state == VPU_CODEC_STATE_DEINIT) {
611 		vpu_set_last_buffer_dequeued(inst, true);
612 	} else {
613 		vdec->drain = 1;
614 		vdec_drain(inst);
615 	}
616 
617 	return 0;
618 }
619 
620 static int vdec_decoder_cmd(struct file *file, void *fh, struct v4l2_decoder_cmd *cmd)
621 {
622 	struct vpu_inst *inst = to_inst(file);
623 	int ret;
624 
625 	ret = v4l2_m2m_ioctl_try_decoder_cmd(file, fh, cmd);
626 	if (ret)
627 		return ret;
628 
629 	vpu_inst_lock(inst);
630 	switch (cmd->cmd) {
631 	case V4L2_DEC_CMD_START:
632 		vdec_cmd_start(inst);
633 		break;
634 	case V4L2_DEC_CMD_STOP:
635 		vdec_cmd_stop(inst);
636 		break;
637 	default:
638 		break;
639 	}
640 	vpu_inst_unlock(inst);
641 
642 	return 0;
643 }
644 
645 static int vdec_subscribe_event(struct v4l2_fh *fh, const struct v4l2_event_subscription *sub)
646 {
647 	switch (sub->type) {
648 	case V4L2_EVENT_EOS:
649 		return v4l2_event_subscribe(fh, sub, 0, NULL);
650 	case V4L2_EVENT_SOURCE_CHANGE:
651 		return v4l2_src_change_event_subscribe(fh, sub);
652 	case V4L2_EVENT_CTRL:
653 		return v4l2_ctrl_subscribe_event(fh, sub);
654 	default:
655 		return -EINVAL;
656 	}
657 
658 	return 0;
659 }
660 
661 static const struct v4l2_ioctl_ops vdec_ioctl_ops = {
662 	.vidioc_querycap               = vdec_querycap,
663 	.vidioc_enum_fmt_vid_cap       = vdec_enum_fmt,
664 	.vidioc_enum_fmt_vid_out       = vdec_enum_fmt,
665 	.vidioc_g_fmt_vid_cap_mplane   = vdec_g_fmt,
666 	.vidioc_g_fmt_vid_out_mplane   = vdec_g_fmt,
667 	.vidioc_try_fmt_vid_cap_mplane = vdec_try_fmt,
668 	.vidioc_try_fmt_vid_out_mplane = vdec_try_fmt,
669 	.vidioc_s_fmt_vid_cap_mplane   = vdec_s_fmt,
670 	.vidioc_s_fmt_vid_out_mplane   = vdec_s_fmt,
671 	.vidioc_g_selection            = vdec_g_selection,
672 	.vidioc_try_decoder_cmd        = v4l2_m2m_ioctl_try_decoder_cmd,
673 	.vidioc_decoder_cmd            = vdec_decoder_cmd,
674 	.vidioc_subscribe_event        = vdec_subscribe_event,
675 	.vidioc_unsubscribe_event      = v4l2_event_unsubscribe,
676 	.vidioc_reqbufs                = v4l2_m2m_ioctl_reqbufs,
677 	.vidioc_create_bufs	       = v4l2_m2m_ioctl_create_bufs,
678 	.vidioc_prepare_buf	       = v4l2_m2m_ioctl_prepare_buf,
679 	.vidioc_querybuf               = v4l2_m2m_ioctl_querybuf,
680 	.vidioc_qbuf                   = v4l2_m2m_ioctl_qbuf,
681 	.vidioc_expbuf                 = v4l2_m2m_ioctl_expbuf,
682 	.vidioc_dqbuf                  = v4l2_m2m_ioctl_dqbuf,
683 	.vidioc_streamon               = v4l2_m2m_ioctl_streamon,
684 	.vidioc_streamoff              = v4l2_m2m_ioctl_streamoff,
685 };
686 
687 static bool vdec_check_ready(struct vpu_inst *inst, unsigned int type)
688 {
689 	struct vdec_t *vdec = inst->priv;
690 
691 	if (V4L2_TYPE_IS_OUTPUT(type))
692 		return true;
693 
694 	if (vdec->req_frame_count)
695 		return true;
696 
697 	return false;
698 }
699 
700 static struct vb2_v4l2_buffer *vdec_get_src_buffer(struct vpu_inst *inst, u32 count)
701 {
702 	if (count > 1)
703 		vpu_skip_frame(inst, count - 1);
704 
705 	return vpu_next_src_buf(inst);
706 }
707 
708 static int vdec_frame_decoded(struct vpu_inst *inst, void *arg)
709 {
710 	struct vdec_t *vdec = inst->priv;
711 	struct vpu_dec_pic_info *info = arg;
712 	struct vpu_vb2_buffer *vpu_buf;
713 	struct vb2_v4l2_buffer *vbuf;
714 	struct vb2_v4l2_buffer *src_buf;
715 	int ret = 0;
716 
717 	if (!info || info->id >= ARRAY_SIZE(vdec->slots))
718 		return -EINVAL;
719 
720 	vpu_inst_lock(inst);
721 	vpu_buf = vdec->slots[info->id];
722 	if (!vpu_buf) {
723 		dev_err(inst->dev, "[%d] decoded invalid frame[%d]\n", inst->id, info->id);
724 		ret = -EINVAL;
725 		goto exit;
726 	}
727 	vbuf = &vpu_buf->m2m_buf.vb;
728 	src_buf = vdec_get_src_buffer(inst, info->consumed_count);
729 	if (src_buf) {
730 		v4l2_m2m_buf_copy_metadata(src_buf, vbuf, true);
731 		if (info->consumed_count) {
732 			v4l2_m2m_src_buf_remove(inst->fh.m2m_ctx);
733 			vpu_set_buffer_state(src_buf, VPU_BUF_STATE_IDLE);
734 			v4l2_m2m_buf_done(src_buf, VB2_BUF_STATE_DONE);
735 		} else {
736 			vpu_set_buffer_state(src_buf, VPU_BUF_STATE_DECODED);
737 		}
738 	}
739 	if (vpu_get_buffer_state(vbuf) == VPU_BUF_STATE_DECODED)
740 		dev_info(inst->dev, "[%d] buf[%d] has been decoded\n", inst->id, info->id);
741 	vpu_set_buffer_state(vbuf, VPU_BUF_STATE_DECODED);
742 	vdec->decoded_frame_count++;
743 	if (vdec->params.display_delay_enable) {
744 		struct vpu_format *cur_fmt;
745 
746 		cur_fmt = vpu_get_format(inst, inst->cap_format.type);
747 		vpu_set_buffer_state(vbuf, VPU_BUF_STATE_READY);
748 		for (int i = 0; i < vbuf->vb2_buf.num_planes; i++)
749 			vb2_set_plane_payload(&vbuf->vb2_buf,
750 					      i, vpu_get_fmt_plane_size(cur_fmt, i));
751 		vbuf->field = cur_fmt->field;
752 		vbuf->sequence = vdec->sequence++;
753 		dev_dbg(inst->dev, "[%d][OUTPUT TS]%32lld\n", inst->id, vbuf->vb2_buf.timestamp);
754 
755 		v4l2_m2m_buf_done(vbuf, VB2_BUF_STATE_DONE);
756 		vdec->display_frame_count++;
757 	}
758 exit:
759 	vpu_inst_unlock(inst);
760 
761 	return ret;
762 }
763 
764 static struct vpu_vb2_buffer *vdec_find_buffer(struct vpu_inst *inst, u32 luma)
765 {
766 	struct vdec_t *vdec = inst->priv;
767 	int i;
768 
769 	for (i = 0; i < ARRAY_SIZE(vdec->slots); i++) {
770 		if (!vdec->slots[i])
771 			continue;
772 		if (luma == vdec->slots[i]->luma)
773 			return vdec->slots[i];
774 	}
775 
776 	return NULL;
777 }
778 
779 static void vdec_buf_done(struct vpu_inst *inst, struct vpu_frame_info *frame)
780 {
781 	struct vdec_t *vdec = inst->priv;
782 	struct vpu_format *cur_fmt;
783 	struct vpu_vb2_buffer *vpu_buf;
784 	struct vb2_v4l2_buffer *vbuf;
785 	int i;
786 
787 	if (!frame)
788 		return;
789 
790 	vpu_inst_lock(inst);
791 	if (!vdec->params.display_delay_enable)
792 		vdec->sequence++;
793 	vpu_buf = vdec_find_buffer(inst, frame->luma);
794 	vpu_inst_unlock(inst);
795 	if (!vpu_buf) {
796 		dev_err(inst->dev, "[%d] can't find buffer, id = %d, addr = 0x%x\n",
797 			inst->id, frame->id, frame->luma);
798 		return;
799 	}
800 	if (frame->skipped) {
801 		dev_dbg(inst->dev, "[%d] frame skip\n", inst->id);
802 		return;
803 	}
804 
805 	cur_fmt = vpu_get_format(inst, inst->cap_format.type);
806 	vbuf = &vpu_buf->m2m_buf.vb;
807 	if (vbuf->vb2_buf.index != frame->id)
808 		dev_err(inst->dev, "[%d] buffer id(%d, %d) dismatch\n",
809 			inst->id, vbuf->vb2_buf.index, frame->id);
810 
811 	if (vpu_get_buffer_state(vbuf) == VPU_BUF_STATE_READY && vdec->params.display_delay_enable)
812 		return;
813 
814 	if (vpu_get_buffer_state(vbuf) != VPU_BUF_STATE_DECODED)
815 		dev_err(inst->dev, "[%d] buffer(%d) ready without decoded\n", inst->id, frame->id);
816 
817 	vpu_set_buffer_state(vbuf, VPU_BUF_STATE_READY);
818 	for (i = 0; i < vbuf->vb2_buf.num_planes; i++)
819 		vb2_set_plane_payload(&vbuf->vb2_buf, i, vpu_get_fmt_plane_size(cur_fmt, i));
820 	vbuf->field = cur_fmt->field;
821 	vbuf->sequence = vdec->sequence;
822 	dev_dbg(inst->dev, "[%d][OUTPUT TS]%32lld\n", inst->id, vbuf->vb2_buf.timestamp);
823 
824 	v4l2_m2m_buf_done(vbuf, VB2_BUF_STATE_DONE);
825 	vpu_inst_lock(inst);
826 	vdec->display_frame_count++;
827 	vpu_inst_unlock(inst);
828 	dev_dbg(inst->dev, "[%d] decoded : %d, display : %d, sequence : %d\n",
829 		inst->id, vdec->decoded_frame_count, vdec->display_frame_count, vdec->sequence);
830 }
831 
832 static void vdec_stop_done(struct vpu_inst *inst)
833 {
834 	struct vdec_t *vdec = inst->priv;
835 
836 	vpu_inst_lock(inst);
837 	vdec_update_state(inst, VPU_CODEC_STATE_DEINIT, 0);
838 	vdec->seq_hdr_found = 0;
839 	vdec->req_frame_count = 0;
840 	vdec->reset_codec = false;
841 	vdec->fixed_fmt = false;
842 	vdec->params.end_flag = 0;
843 	vdec->drain = 0;
844 	vdec->params.frame_count = 0;
845 	vdec->decoded_frame_count = 0;
846 	vdec->display_frame_count = 0;
847 	vdec->sequence = 0;
848 	vdec->eos_received = 0;
849 	vdec->is_source_changed = false;
850 	vdec->source_change = 0;
851 	inst->total_input_count = 0;
852 	vpu_inst_unlock(inst);
853 }
854 
855 static bool vdec_check_source_change(struct vpu_inst *inst)
856 {
857 	struct vdec_t *vdec = inst->priv;
858 	const struct vpu_format *sibling;
859 
860 	if (!inst->fh.m2m_ctx)
861 		return false;
862 
863 	if (vdec->reset_codec)
864 		return false;
865 
866 	sibling = vpu_helper_find_sibling(inst, inst->cap_format.type, inst->cap_format.pixfmt);
867 	if (sibling && vdec->codec_info.pixfmt == sibling->pixfmt)
868 		vdec->codec_info.pixfmt = inst->cap_format.pixfmt;
869 
870 	if (!vb2_is_streaming(v4l2_m2m_get_dst_vq(inst->fh.m2m_ctx)))
871 		return true;
872 	if (inst->cap_format.pixfmt != vdec->codec_info.pixfmt)
873 		return true;
874 	if (inst->cap_format.width != vdec->codec_info.decoded_width)
875 		return true;
876 	if (inst->cap_format.height != vdec->codec_info.decoded_height)
877 		return true;
878 	if (vpu_get_num_buffers(inst, inst->cap_format.type) < inst->min_buffer_cap)
879 		return true;
880 	if (inst->crop.left != vdec->codec_info.offset_x)
881 		return true;
882 	if (inst->crop.top != vdec->codec_info.offset_y)
883 		return true;
884 	if (inst->crop.width != vdec->codec_info.width)
885 		return true;
886 	if (inst->crop.height != vdec->codec_info.height)
887 		return true;
888 
889 	return false;
890 }
891 
892 static void vdec_init_fmt(struct vpu_inst *inst)
893 {
894 	struct vdec_t *vdec = inst->priv;
895 	struct v4l2_format f;
896 
897 	memset(&f, 0, sizeof(f));
898 	f.type = inst->cap_format.type;
899 	f.fmt.pix_mp.pixelformat = vdec->codec_info.pixfmt;
900 	f.fmt.pix_mp.width = vdec->codec_info.decoded_width;
901 	f.fmt.pix_mp.height = vdec->codec_info.decoded_height;
902 	if (vdec->codec_info.progressive)
903 		f.fmt.pix_mp.field = V4L2_FIELD_NONE;
904 	else
905 		f.fmt.pix_mp.field = V4L2_FIELD_SEQ_TB;
906 	vpu_try_fmt_common(inst, &f, &inst->cap_format);
907 
908 	inst->out_format.width = vdec->codec_info.width;
909 	inst->out_format.height = vdec->codec_info.height;
910 }
911 
912 static void vdec_init_crop(struct vpu_inst *inst)
913 {
914 	struct vdec_t *vdec = inst->priv;
915 
916 	inst->crop.left = vdec->codec_info.offset_x;
917 	inst->crop.top = vdec->codec_info.offset_y;
918 	inst->crop.width = vdec->codec_info.width;
919 	inst->crop.height = vdec->codec_info.height;
920 }
921 
922 static void vdec_init_mbi(struct vpu_inst *inst)
923 {
924 	struct vdec_t *vdec = inst->priv;
925 
926 	vdec->mbi.size = vdec->codec_info.mbi_size;
927 	vdec->mbi.max_count = ARRAY_SIZE(vdec->mbi.buffer);
928 	scnprintf(vdec->mbi.name, sizeof(vdec->mbi.name), "mbi");
929 	vdec->mbi.type = MEM_RES_MBI;
930 	vdec->mbi.tag = vdec->seq_tag;
931 }
932 
933 static void vdec_init_dcp(struct vpu_inst *inst)
934 {
935 	struct vdec_t *vdec = inst->priv;
936 
937 	vdec->dcp.size = vdec->codec_info.dcp_size;
938 	vdec->dcp.max_count = ARRAY_SIZE(vdec->dcp.buffer);
939 	scnprintf(vdec->dcp.name, sizeof(vdec->dcp.name), "dcp");
940 	vdec->dcp.type = MEM_RES_DCP;
941 	vdec->dcp.tag = vdec->seq_tag;
942 }
943 
944 static void vdec_request_one_fs(struct vdec_fs_info *fs)
945 {
946 	fs->req_count++;
947 	if (fs->req_count > fs->max_count)
948 		fs->req_count = fs->max_count;
949 }
950 
951 static int vdec_alloc_fs_buffer(struct vpu_inst *inst, struct vdec_fs_info *fs)
952 {
953 	struct vpu_buffer *buffer;
954 
955 	if (!fs->size)
956 		return -EINVAL;
957 
958 	if (fs->count >= fs->req_count)
959 		return -EINVAL;
960 
961 	buffer = &fs->buffer[fs->count];
962 	if (buffer->virt && buffer->length >= fs->size)
963 		return 0;
964 
965 	vpu_free_dma(buffer);
966 	buffer->length = fs->size;
967 	return vpu_alloc_dma(inst->core, buffer);
968 }
969 
970 static void vdec_alloc_fs(struct vpu_inst *inst, struct vdec_fs_info *fs)
971 {
972 	int ret;
973 
974 	while (fs->count < fs->req_count) {
975 		ret = vdec_alloc_fs_buffer(inst, fs);
976 		if (ret)
977 			break;
978 		fs->count++;
979 	}
980 }
981 
982 static void vdec_clear_fs(struct vdec_fs_info *fs)
983 {
984 	u32 i;
985 
986 	if (!fs)
987 		return;
988 
989 	for (i = 0; i < ARRAY_SIZE(fs->buffer); i++)
990 		vpu_free_dma(&fs->buffer[i]);
991 	memset(fs, 0, sizeof(*fs));
992 }
993 
994 static int vdec_response_fs(struct vpu_inst *inst, struct vdec_fs_info *fs)
995 {
996 	struct vpu_fs_info info;
997 	int ret;
998 
999 	if (fs->index >= fs->count)
1000 		return 0;
1001 
1002 	memset(&info, 0, sizeof(info));
1003 	info.id = fs->index;
1004 	info.type = fs->type;
1005 	info.tag = fs->tag;
1006 	info.luma_addr = fs->buffer[fs->index].phys;
1007 	info.luma_size = fs->buffer[fs->index].length;
1008 	ret = vpu_session_alloc_fs(inst, &info);
1009 	if (ret)
1010 		return ret;
1011 
1012 	fs->index++;
1013 	return 0;
1014 }
1015 
1016 static int vdec_response_frame_abnormal(struct vpu_inst *inst)
1017 {
1018 	struct vdec_t *vdec = inst->priv;
1019 	struct vpu_fs_info info;
1020 	int ret;
1021 
1022 	if (!vdec->req_frame_count)
1023 		return 0;
1024 
1025 	memset(&info, 0, sizeof(info));
1026 	info.type = MEM_RES_FRAME;
1027 	info.tag = vdec->seq_tag + 0xf0;
1028 	ret = vpu_session_alloc_fs(inst, &info);
1029 	if (ret)
1030 		return ret;
1031 	vdec->req_frame_count--;
1032 
1033 	return 0;
1034 }
1035 
1036 static int vdec_response_frame(struct vpu_inst *inst, struct vb2_v4l2_buffer *vbuf)
1037 {
1038 	struct vdec_t *vdec = inst->priv;
1039 	struct vpu_vb2_buffer *vpu_buf;
1040 	struct vpu_fs_info info;
1041 	int ret;
1042 
1043 	if (inst->state != VPU_CODEC_STATE_ACTIVE)
1044 		return -EINVAL;
1045 
1046 	if (vdec->aborting)
1047 		return -EINVAL;
1048 
1049 	if (!vdec->req_frame_count)
1050 		return -EINVAL;
1051 
1052 	if (!vbuf)
1053 		return -EINVAL;
1054 
1055 	if (vdec->slots[vbuf->vb2_buf.index]) {
1056 		dev_err(inst->dev, "[%d] repeat alloc fs %d\n",
1057 			inst->id, vbuf->vb2_buf.index);
1058 		return -EINVAL;
1059 	}
1060 
1061 	dev_dbg(inst->dev, "[%d] state = %s, alloc fs %d, tag = 0x%x\n",
1062 		inst->id, vpu_codec_state_name(inst->state), vbuf->vb2_buf.index, vdec->seq_tag);
1063 	vpu_buf = to_vpu_vb2_buffer(vbuf);
1064 
1065 	memset(&info, 0, sizeof(info));
1066 	info.id = vbuf->vb2_buf.index;
1067 	info.type = MEM_RES_FRAME;
1068 	info.tag = vdec->seq_tag;
1069 	info.luma_addr = vpu_get_vb_phy_addr(&vbuf->vb2_buf, 0);
1070 	info.luma_size = inst->cap_format.sizeimage[0];
1071 	if (vbuf->vb2_buf.num_planes > 1)
1072 		info.chroma_addr = vpu_get_vb_phy_addr(&vbuf->vb2_buf, 1);
1073 	else
1074 		info.chroma_addr = info.luma_addr + info.luma_size;
1075 	info.chromau_size = inst->cap_format.sizeimage[1];
1076 	info.bytesperline = inst->cap_format.bytesperline[0];
1077 	ret = vpu_session_alloc_fs(inst, &info);
1078 	if (ret)
1079 		return ret;
1080 
1081 	vpu_buf->tag = info.tag;
1082 	vpu_buf->luma = info.luma_addr;
1083 	vpu_buf->chroma_u = info.chroma_addr;
1084 	vpu_buf->chroma_v = 0;
1085 	vpu_set_buffer_state(vbuf, VPU_BUF_STATE_INUSE);
1086 	vdec->slots[info.id] = vpu_buf;
1087 	vdec->req_frame_count--;
1088 
1089 	return 0;
1090 }
1091 
1092 static void vdec_response_fs_request(struct vpu_inst *inst, bool force)
1093 {
1094 	struct vdec_t *vdec = inst->priv;
1095 	int i;
1096 	int ret;
1097 
1098 	if (force) {
1099 		for (i = vdec->req_frame_count; i > 0; i--)
1100 			vdec_response_frame_abnormal(inst);
1101 		return;
1102 	}
1103 
1104 	for (i = vdec->req_frame_count; i > 0; i--) {
1105 		ret = vpu_process_capture_buffer(inst);
1106 		if (ret)
1107 			break;
1108 		if (vdec->eos_received)
1109 			break;
1110 	}
1111 
1112 	for (i = vdec->mbi.index; i < vdec->mbi.count; i++) {
1113 		if (vdec_response_fs(inst, &vdec->mbi))
1114 			break;
1115 		if (vdec->eos_received)
1116 			break;
1117 	}
1118 	for (i = vdec->dcp.index; i < vdec->dcp.count; i++) {
1119 		if (vdec_response_fs(inst, &vdec->dcp))
1120 			break;
1121 		if (vdec->eos_received)
1122 			break;
1123 	}
1124 }
1125 
1126 static void vdec_response_fs_release(struct vpu_inst *inst, u32 id, u32 tag)
1127 {
1128 	struct vpu_fs_info info;
1129 
1130 	memset(&info, 0, sizeof(info));
1131 	info.id = id;
1132 	info.tag = tag;
1133 	vpu_session_release_fs(inst, &info);
1134 }
1135 
1136 static void vdec_recycle_buffer(struct vpu_inst *inst, struct vb2_v4l2_buffer *vbuf)
1137 {
1138 	if (!inst->fh.m2m_ctx)
1139 		return;
1140 	if (vbuf->vb2_buf.state != VB2_BUF_STATE_ACTIVE)
1141 		return;
1142 	if (vpu_find_buf_by_idx(inst, vbuf->vb2_buf.type, vbuf->vb2_buf.index))
1143 		return;
1144 	v4l2_m2m_buf_queue(inst->fh.m2m_ctx, vbuf);
1145 }
1146 
1147 static void vdec_clear_slots(struct vpu_inst *inst)
1148 {
1149 	struct vdec_t *vdec = inst->priv;
1150 	struct vpu_vb2_buffer *vpu_buf;
1151 	struct vb2_v4l2_buffer *vbuf;
1152 	int i;
1153 
1154 	for (i = 0; i < ARRAY_SIZE(vdec->slots); i++) {
1155 		if (!vdec->slots[i])
1156 			continue;
1157 
1158 		vpu_buf = vdec->slots[i];
1159 		vbuf = &vpu_buf->m2m_buf.vb;
1160 
1161 		vpu_trace(inst->dev, "clear slot %d\n", i);
1162 		vdec_response_fs_release(inst, i, vpu_buf->tag);
1163 		vdec_recycle_buffer(inst, vbuf);
1164 		vdec->slots[i]->state = VPU_BUF_STATE_IDLE;
1165 		vdec->slots[i] = NULL;
1166 	}
1167 }
1168 
1169 static void vdec_event_seq_hdr(struct vpu_inst *inst, struct vpu_dec_codec_info *hdr)
1170 {
1171 	struct vdec_t *vdec = inst->priv;
1172 
1173 	vpu_inst_lock(inst);
1174 	memcpy(&vdec->codec_info, hdr, sizeof(vdec->codec_info));
1175 
1176 	vpu_trace(inst->dev, "[%d] %d x %d, crop : (%d, %d) %d x %d, %d, %d\n",
1177 		  inst->id,
1178 		  vdec->codec_info.decoded_width,
1179 		  vdec->codec_info.decoded_height,
1180 		  vdec->codec_info.offset_x,
1181 		  vdec->codec_info.offset_y,
1182 		  vdec->codec_info.width,
1183 		  vdec->codec_info.height,
1184 		  hdr->num_ref_frms,
1185 		  hdr->num_dpb_frms);
1186 	inst->min_buffer_cap = hdr->num_ref_frms + hdr->num_dpb_frms;
1187 	vdec->is_source_changed = vdec_check_source_change(inst);
1188 	vdec_init_fmt(inst);
1189 	vdec_init_crop(inst);
1190 	vdec_init_mbi(inst);
1191 	vdec_init_dcp(inst);
1192 	if (!vdec->seq_hdr_found) {
1193 		vdec->seq_tag = vdec->codec_info.tag;
1194 		if (vdec->is_source_changed) {
1195 			vdec_update_state(inst, VPU_CODEC_STATE_DYAMIC_RESOLUTION_CHANGE, 0);
1196 			vdec->source_change++;
1197 			vdec_handle_resolution_change(inst);
1198 			vdec->is_source_changed = false;
1199 		}
1200 	}
1201 	if (vdec->seq_tag != vdec->codec_info.tag) {
1202 		vdec_response_fs_request(inst, true);
1203 		vpu_trace(inst->dev, "[%d] seq tag change: %d -> %d\n",
1204 			  inst->id, vdec->seq_tag, vdec->codec_info.tag);
1205 	}
1206 	vdec->seq_hdr_found++;
1207 	vdec->fixed_fmt = true;
1208 	vpu_inst_unlock(inst);
1209 }
1210 
1211 static void vdec_event_resolution_change(struct vpu_inst *inst)
1212 {
1213 	struct vdec_t *vdec = inst->priv;
1214 
1215 	vpu_trace(inst->dev, "[%d]\n", inst->id);
1216 	vpu_inst_lock(inst);
1217 	vdec->seq_tag = vdec->codec_info.tag;
1218 	vdec_clear_fs(&vdec->mbi);
1219 	vdec_clear_fs(&vdec->dcp);
1220 	vdec_clear_slots(inst);
1221 	vdec_init_mbi(inst);
1222 	vdec_init_dcp(inst);
1223 	if (vdec->is_source_changed) {
1224 		vdec_update_state(inst, VPU_CODEC_STATE_DYAMIC_RESOLUTION_CHANGE, 0);
1225 		vdec->source_change++;
1226 		vdec_handle_resolution_change(inst);
1227 		vdec->is_source_changed = false;
1228 	}
1229 	vpu_inst_unlock(inst);
1230 }
1231 
1232 static void vdec_event_req_fs(struct vpu_inst *inst, struct vpu_fs_info *fs)
1233 {
1234 	struct vdec_t *vdec = inst->priv;
1235 
1236 	if (!fs)
1237 		return;
1238 
1239 	vpu_inst_lock(inst);
1240 
1241 	switch (fs->type) {
1242 	case MEM_RES_FRAME:
1243 		vdec->req_frame_count++;
1244 		break;
1245 	case MEM_RES_MBI:
1246 		vdec_request_one_fs(&vdec->mbi);
1247 		break;
1248 	case MEM_RES_DCP:
1249 		vdec_request_one_fs(&vdec->dcp);
1250 		break;
1251 	default:
1252 		break;
1253 	}
1254 
1255 	vdec_alloc_fs(inst, &vdec->mbi);
1256 	vdec_alloc_fs(inst, &vdec->dcp);
1257 
1258 	vdec_response_fs_request(inst, false);
1259 
1260 	vpu_inst_unlock(inst);
1261 }
1262 
1263 static void vdec_evnet_rel_fs(struct vpu_inst *inst, struct vpu_fs_info *fs)
1264 {
1265 	struct vdec_t *vdec = inst->priv;
1266 	struct vpu_vb2_buffer *vpu_buf;
1267 	struct vb2_v4l2_buffer *vbuf;
1268 
1269 	if (!fs || fs->id >= ARRAY_SIZE(vdec->slots))
1270 		return;
1271 	if (fs->type != MEM_RES_FRAME)
1272 		return;
1273 
1274 	if (fs->id >= vpu_get_num_buffers(inst, inst->cap_format.type)) {
1275 		dev_err(inst->dev, "[%d] invalid fs(%d) to release\n", inst->id, fs->id);
1276 		return;
1277 	}
1278 
1279 	vpu_inst_lock(inst);
1280 	vpu_buf = vdec->slots[fs->id];
1281 	vdec->slots[fs->id] = NULL;
1282 
1283 	if (!vpu_buf) {
1284 		dev_dbg(inst->dev, "[%d] fs[%d] has bee released\n", inst->id, fs->id);
1285 		goto exit;
1286 	}
1287 
1288 	vbuf = &vpu_buf->m2m_buf.vb;
1289 	if (vpu_get_buffer_state(vbuf) == VPU_BUF_STATE_DECODED) {
1290 		dev_dbg(inst->dev, "[%d] frame skip\n", inst->id);
1291 		vdec->sequence++;
1292 	}
1293 
1294 	vdec_response_fs_release(inst, fs->id, vpu_buf->tag);
1295 	if (vpu_get_buffer_state(vbuf) != VPU_BUF_STATE_READY)
1296 		vdec_recycle_buffer(inst, vbuf);
1297 
1298 	vpu_set_buffer_state(vbuf, VPU_BUF_STATE_IDLE);
1299 	vpu_process_capture_buffer(inst);
1300 
1301 exit:
1302 	vpu_inst_unlock(inst);
1303 }
1304 
1305 static void vdec_event_eos(struct vpu_inst *inst)
1306 {
1307 	struct vdec_t *vdec = inst->priv;
1308 
1309 	vpu_trace(inst->dev, "[%d] input : %d, decoded : %d, display : %d, sequence : %d\n",
1310 		  inst->id,
1311 		  vdec->params.frame_count,
1312 		  vdec->decoded_frame_count,
1313 		  vdec->display_frame_count,
1314 		  vdec->sequence);
1315 	vpu_inst_lock(inst);
1316 	vdec->eos_received++;
1317 	vdec->fixed_fmt = false;
1318 	inst->min_buffer_cap = VDEC_MIN_BUFFER_CAP;
1319 	vdec_set_last_buffer_dequeued(inst);
1320 	vpu_inst_unlock(inst);
1321 }
1322 
1323 static void vdec_event_notify(struct vpu_inst *inst, u32 event, void *data)
1324 {
1325 	switch (event) {
1326 	case VPU_MSG_ID_SEQ_HDR_FOUND:
1327 		vdec_event_seq_hdr(inst, data);
1328 		break;
1329 	case VPU_MSG_ID_RES_CHANGE:
1330 		vdec_event_resolution_change(inst);
1331 		break;
1332 	case VPU_MSG_ID_FRAME_REQ:
1333 		vdec_event_req_fs(inst, data);
1334 		break;
1335 	case VPU_MSG_ID_FRAME_RELEASE:
1336 		vdec_evnet_rel_fs(inst, data);
1337 		break;
1338 	case VPU_MSG_ID_PIC_EOS:
1339 		vdec_event_eos(inst);
1340 		break;
1341 	default:
1342 		break;
1343 	}
1344 }
1345 
1346 static int vdec_process_output(struct vpu_inst *inst, struct vb2_buffer *vb)
1347 {
1348 	struct vdec_t *vdec = inst->priv;
1349 	struct vb2_v4l2_buffer *vbuf;
1350 	struct vpu_rpc_buffer_desc desc;
1351 	u32 free_space;
1352 	int ret;
1353 
1354 	vbuf = to_vb2_v4l2_buffer(vb);
1355 	dev_dbg(inst->dev, "[%d] dec output [%d] %d : %ld\n",
1356 		inst->id, vbuf->sequence, vb->index, vb2_get_plane_payload(vb, 0));
1357 
1358 	if (inst->state == VPU_CODEC_STATE_DEINIT)
1359 		return -EINVAL;
1360 	if (vdec->reset_codec)
1361 		return -EINVAL;
1362 
1363 	if (inst->state == VPU_CODEC_STATE_STARTED)
1364 		vdec_update_state(inst, VPU_CODEC_STATE_ACTIVE, 0);
1365 
1366 	ret = vpu_iface_get_stream_buffer_desc(inst, &desc);
1367 	if (ret)
1368 		return ret;
1369 
1370 	free_space = vpu_helper_get_free_space(inst);
1371 	if (free_space < vb2_get_plane_payload(vb, 0) + 0x40000)
1372 		return -ENOMEM;
1373 
1374 	vpu_set_buffer_state(vbuf, VPU_BUF_STATE_INUSE);
1375 	ret = vpu_iface_input_frame(inst, vb);
1376 	if (ret < 0)
1377 		return -ENOMEM;
1378 
1379 	dev_dbg(inst->dev, "[%d][INPUT  TS]%32lld\n", inst->id, vb->timestamp);
1380 	vdec->params.frame_count++;
1381 
1382 	if (vdec->drain)
1383 		vdec_drain(inst);
1384 
1385 	return 0;
1386 }
1387 
1388 static int vdec_process_capture(struct vpu_inst *inst, struct vb2_buffer *vb)
1389 {
1390 	struct vdec_t *vdec = inst->priv;
1391 	struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
1392 	int ret;
1393 
1394 	if (inst->state == VPU_CODEC_STATE_DYAMIC_RESOLUTION_CHANGE)
1395 		return -EINVAL;
1396 	if (vdec->reset_codec)
1397 		return -EINVAL;
1398 
1399 	ret = vdec_response_frame(inst, vbuf);
1400 	if (ret)
1401 		return ret;
1402 	v4l2_m2m_dst_buf_remove_by_buf(inst->fh.m2m_ctx, vbuf);
1403 	return 0;
1404 }
1405 
1406 static void vdec_on_queue_empty(struct vpu_inst *inst, u32 type)
1407 {
1408 	struct vdec_t *vdec = inst->priv;
1409 
1410 	if (V4L2_TYPE_IS_OUTPUT(type))
1411 		return;
1412 
1413 	vdec_handle_resolution_change(inst);
1414 	if (vdec->eos_received)
1415 		vdec_set_last_buffer_dequeued(inst);
1416 }
1417 
1418 static void vdec_abort(struct vpu_inst *inst)
1419 {
1420 	struct vdec_t *vdec = inst->priv;
1421 	struct vpu_rpc_buffer_desc desc;
1422 	int ret;
1423 
1424 	vpu_trace(inst->dev, "[%d] state = %s\n", inst->id, vpu_codec_state_name(inst->state));
1425 
1426 	vdec->aborting = true;
1427 	vpu_iface_add_scode(inst, SCODE_PADDING_ABORT);
1428 	vdec->params.end_flag = 1;
1429 	vpu_iface_set_decode_params(inst, &vdec->params, 1);
1430 
1431 	vpu_session_abort(inst);
1432 
1433 	ret = vpu_iface_get_stream_buffer_desc(inst, &desc);
1434 	if (!ret)
1435 		vpu_iface_update_stream_buffer(inst, desc.rptr, 1);
1436 
1437 	vpu_session_rst_buf(inst);
1438 	vpu_trace(inst->dev, "[%d] input : %d, decoded : %d, display : %d, sequence : %d\n",
1439 		  inst->id,
1440 		  vdec->params.frame_count,
1441 		  vdec->decoded_frame_count,
1442 		  vdec->display_frame_count,
1443 		  vdec->sequence);
1444 	if (!vdec->seq_hdr_found)
1445 		vdec->reset_codec = true;
1446 	vdec->params.end_flag = 0;
1447 	vdec->drain = 0;
1448 	vdec->params.frame_count = 0;
1449 	vdec->decoded_frame_count = 0;
1450 	vdec->display_frame_count = 0;
1451 	vdec->sequence = 0;
1452 	vdec->aborting = false;
1453 	inst->extra_size = 0;
1454 }
1455 
1456 static void vdec_stop(struct vpu_inst *inst, bool free)
1457 {
1458 	struct vdec_t *vdec = inst->priv;
1459 
1460 	vdec_clear_slots(inst);
1461 	if (inst->state != VPU_CODEC_STATE_DEINIT)
1462 		vpu_session_stop(inst);
1463 	vdec_clear_fs(&vdec->mbi);
1464 	vdec_clear_fs(&vdec->dcp);
1465 	if (free) {
1466 		vpu_free_dma(&vdec->udata);
1467 		vpu_free_dma(&inst->stream_buffer);
1468 	}
1469 	vdec_update_state(inst, VPU_CODEC_STATE_DEINIT, 1);
1470 	vdec->reset_codec = false;
1471 }
1472 
1473 static void vdec_release(struct vpu_inst *inst)
1474 {
1475 	if (inst->id != VPU_INST_NULL_ID)
1476 		vpu_trace(inst->dev, "[%d]\n", inst->id);
1477 	vdec_stop(inst, true);
1478 }
1479 
1480 static void vdec_cleanup(struct vpu_inst *inst)
1481 {
1482 	struct vdec_t *vdec;
1483 
1484 	if (!inst)
1485 		return;
1486 
1487 	vdec = inst->priv;
1488 	vfree(vdec);
1489 	inst->priv = NULL;
1490 	vfree(inst);
1491 }
1492 
1493 static void vdec_init_params(struct vdec_t *vdec)
1494 {
1495 	vdec->params.frame_count = 0;
1496 	vdec->params.end_flag = 0;
1497 }
1498 
1499 static int vdec_start(struct vpu_inst *inst)
1500 {
1501 	struct vdec_t *vdec = inst->priv;
1502 	int stream_buffer_size;
1503 	int ret;
1504 
1505 	if (inst->state != VPU_CODEC_STATE_DEINIT)
1506 		return 0;
1507 
1508 	vpu_trace(inst->dev, "[%d]\n", inst->id);
1509 	if (!vdec->udata.virt) {
1510 		vdec->udata.length = 0x1000;
1511 		ret = vpu_alloc_dma(inst->core, &vdec->udata);
1512 		if (ret) {
1513 			dev_err(inst->dev, "[%d] alloc udata fail\n", inst->id);
1514 			goto error;
1515 		}
1516 	}
1517 
1518 	if (!inst->stream_buffer.virt) {
1519 		stream_buffer_size = vpu_iface_get_stream_buffer_size(inst->core);
1520 		if (stream_buffer_size > 0) {
1521 			inst->stream_buffer.length = stream_buffer_size;
1522 			ret = vpu_alloc_dma(inst->core, &inst->stream_buffer);
1523 			if (ret) {
1524 				dev_err(inst->dev, "[%d] alloc stream buffer fail\n", inst->id);
1525 				goto error;
1526 			}
1527 			inst->use_stream_buffer = true;
1528 		}
1529 	}
1530 
1531 	if (inst->use_stream_buffer)
1532 		vpu_iface_config_stream_buffer(inst, &inst->stream_buffer);
1533 	vpu_iface_init_instance(inst);
1534 	vdec->params.udata.base = vdec->udata.phys;
1535 	vdec->params.udata.size = vdec->udata.length;
1536 	ret = vpu_iface_set_decode_params(inst, &vdec->params, 0);
1537 	if (ret) {
1538 		dev_err(inst->dev, "[%d] set decode params fail\n", inst->id);
1539 		goto error;
1540 	}
1541 
1542 	vdec_init_params(vdec);
1543 	ret = vpu_session_start(inst);
1544 	if (ret) {
1545 		dev_err(inst->dev, "[%d] start fail\n", inst->id);
1546 		goto error;
1547 	}
1548 
1549 	vdec_update_state(inst, VPU_CODEC_STATE_STARTED, 0);
1550 
1551 	return 0;
1552 error:
1553 	vpu_free_dma(&vdec->udata);
1554 	vpu_free_dma(&inst->stream_buffer);
1555 	return ret;
1556 }
1557 
1558 static int vdec_start_session(struct vpu_inst *inst, u32 type)
1559 {
1560 	struct vdec_t *vdec = inst->priv;
1561 	int ret = 0;
1562 
1563 	if (V4L2_TYPE_IS_OUTPUT(type)) {
1564 		if (vdec->reset_codec)
1565 			vdec_stop(inst, false);
1566 		if (inst->state == VPU_CODEC_STATE_DEINIT) {
1567 			ret = vdec_start(inst);
1568 			if (ret)
1569 				return ret;
1570 		}
1571 	}
1572 
1573 	if (V4L2_TYPE_IS_OUTPUT(type)) {
1574 		vdec_update_state(inst, vdec->state, 1);
1575 		vdec->eos_received = 0;
1576 		vpu_process_output_buffer(inst);
1577 	} else {
1578 		vdec_cmd_start(inst);
1579 	}
1580 	if (inst->state == VPU_CODEC_STATE_ACTIVE)
1581 		vdec_response_fs_request(inst, false);
1582 
1583 	return ret;
1584 }
1585 
1586 static int vdec_stop_session(struct vpu_inst *inst, u32 type)
1587 {
1588 	struct vdec_t *vdec = inst->priv;
1589 
1590 	if (inst->state == VPU_CODEC_STATE_DEINIT)
1591 		return 0;
1592 
1593 	if (V4L2_TYPE_IS_OUTPUT(type)) {
1594 		vdec_update_state(inst, VPU_CODEC_STATE_SEEK, 0);
1595 		vdec->drain = 0;
1596 		vdec_abort(inst);
1597 	} else {
1598 		if (inst->state != VPU_CODEC_STATE_DYAMIC_RESOLUTION_CHANGE) {
1599 			if (vb2_is_streaming(v4l2_m2m_get_src_vq(inst->fh.m2m_ctx)))
1600 				vdec_abort(inst);
1601 			vdec->eos_received = 0;
1602 		}
1603 		vdec_clear_slots(inst);
1604 	}
1605 
1606 	return 0;
1607 }
1608 
1609 static int vdec_get_debug_info(struct vpu_inst *inst, char *str, u32 size, u32 i)
1610 {
1611 	struct vdec_t *vdec = inst->priv;
1612 	int num = -1;
1613 
1614 	switch (i) {
1615 	case 0:
1616 		num = scnprintf(str, size,
1617 				"req_frame_count = %d\ninterlaced = %d\n",
1618 				vdec->req_frame_count,
1619 				vdec->codec_info.progressive ? 0 : 1);
1620 		break;
1621 	case 1:
1622 		num = scnprintf(str, size,
1623 				"mbi: size = 0x%x request = %d, alloc = %d, response = %d\n",
1624 				vdec->mbi.size,
1625 				vdec->mbi.req_count,
1626 				vdec->mbi.count,
1627 				vdec->mbi.index);
1628 		break;
1629 	case 2:
1630 		num = scnprintf(str, size,
1631 				"dcp: size = 0x%x request = %d, alloc = %d, response = %d\n",
1632 				vdec->dcp.size,
1633 				vdec->dcp.req_count,
1634 				vdec->dcp.count,
1635 				vdec->dcp.index);
1636 		break;
1637 	case 3:
1638 		num = scnprintf(str, size, "input_frame_count = %d\n", vdec->params.frame_count);
1639 		break;
1640 	case 4:
1641 		num = scnprintf(str, size, "decoded_frame_count = %d\n", vdec->decoded_frame_count);
1642 		break;
1643 	case 5:
1644 		num = scnprintf(str, size, "display_frame_count = %d\n", vdec->display_frame_count);
1645 		break;
1646 	case 6:
1647 		num = scnprintf(str, size, "sequence = %d\n", vdec->sequence);
1648 		break;
1649 	case 7:
1650 		num = scnprintf(str, size, "drain = %d, eos = %d, source_change = %d\n",
1651 				vdec->drain, vdec->eos_received, vdec->source_change);
1652 		break;
1653 	case 8:
1654 		num = scnprintf(str, size, "fps = %d/%d\n",
1655 				vdec->codec_info.frame_rate.numerator,
1656 				vdec->codec_info.frame_rate.denominator);
1657 		break;
1658 	case 9:
1659 		num = scnprintf(str, size, "colorspace: %d, %d, %d, %d (%d)\n",
1660 				vdec->codec_info.color_primaries,
1661 				vdec->codec_info.transfer_chars,
1662 				vdec->codec_info.matrix_coeffs,
1663 				vdec->codec_info.full_range,
1664 				vdec->codec_info.vui_present);
1665 		break;
1666 	default:
1667 		break;
1668 	}
1669 
1670 	return num;
1671 }
1672 
1673 static struct vpu_inst_ops vdec_inst_ops = {
1674 	.ctrl_init = vdec_ctrl_init,
1675 	.check_ready = vdec_check_ready,
1676 	.buf_done = vdec_buf_done,
1677 	.get_one_frame = vdec_frame_decoded,
1678 	.stop_done = vdec_stop_done,
1679 	.event_notify = vdec_event_notify,
1680 	.release = vdec_release,
1681 	.cleanup = vdec_cleanup,
1682 	.start = vdec_start_session,
1683 	.stop = vdec_stop_session,
1684 	.process_output = vdec_process_output,
1685 	.process_capture = vdec_process_capture,
1686 	.on_queue_empty = vdec_on_queue_empty,
1687 	.get_debug_info = vdec_get_debug_info,
1688 	.wait_prepare = vpu_inst_unlock,
1689 	.wait_finish = vpu_inst_lock,
1690 };
1691 
1692 static void vdec_init(struct file *file)
1693 {
1694 	struct vpu_inst *inst = to_inst(file);
1695 	struct v4l2_format f;
1696 
1697 	memset(&f, 0, sizeof(f));
1698 	f.type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE;
1699 	f.fmt.pix_mp.pixelformat = V4L2_PIX_FMT_H264;
1700 	f.fmt.pix_mp.width = 1280;
1701 	f.fmt.pix_mp.height = 720;
1702 	f.fmt.pix_mp.field = V4L2_FIELD_NONE;
1703 	vdec_s_fmt(file, &inst->fh, &f);
1704 
1705 	memset(&f, 0, sizeof(f));
1706 	f.type = V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE;
1707 	f.fmt.pix_mp.pixelformat = V4L2_PIX_FMT_NV12M_8L128;
1708 	f.fmt.pix_mp.width = 1280;
1709 	f.fmt.pix_mp.height = 720;
1710 	f.fmt.pix_mp.field = V4L2_FIELD_NONE;
1711 	vdec_s_fmt(file, &inst->fh, &f);
1712 }
1713 
1714 static int vdec_open(struct file *file)
1715 {
1716 	struct vpu_inst *inst;
1717 	struct vdec_t *vdec;
1718 	int ret;
1719 
1720 	inst = vzalloc(sizeof(*inst));
1721 	if (!inst)
1722 		return -ENOMEM;
1723 
1724 	vdec = vzalloc(sizeof(*vdec));
1725 	if (!vdec) {
1726 		vfree(inst);
1727 		return -ENOMEM;
1728 	}
1729 
1730 	inst->ops = &vdec_inst_ops;
1731 	inst->formats = vdec_formats;
1732 	inst->type = VPU_CORE_TYPE_DEC;
1733 	inst->priv = vdec;
1734 
1735 	ret = vpu_v4l2_open(file, inst);
1736 	if (ret)
1737 		return ret;
1738 
1739 	vdec->fixed_fmt = false;
1740 	vdec->state = VPU_CODEC_STATE_ACTIVE;
1741 	inst->min_buffer_cap = VDEC_MIN_BUFFER_CAP;
1742 	inst->min_buffer_out = VDEC_MIN_BUFFER_OUT;
1743 	vdec_init(file);
1744 
1745 	return 0;
1746 }
1747 
1748 static const struct v4l2_file_operations vdec_fops = {
1749 	.owner = THIS_MODULE,
1750 	.open = vdec_open,
1751 	.release = vpu_v4l2_close,
1752 	.unlocked_ioctl = video_ioctl2,
1753 	.poll = v4l2_m2m_fop_poll,
1754 	.mmap = v4l2_m2m_fop_mmap,
1755 };
1756 
1757 const struct v4l2_ioctl_ops *vdec_get_ioctl_ops(void)
1758 {
1759 	return &vdec_ioctl_ops;
1760 }
1761 
1762 const struct v4l2_file_operations *vdec_get_fops(void)
1763 {
1764 	return &vdec_fops;
1765 }
1766