1 // SPDX-License-Identifier: GPL-2.0-or-later
2 /*
3  * linux/drivers/media/platform/samsung/s5p-mfc/s5p_mfc_dec.c
4  *
5  * Copyright (C) 2011 Samsung Electronics Co., Ltd.
6  *		http://www.samsung.com/
7  * Kamil Debski, <k.debski@samsung.com>
8  */
9 
10 #include <linux/clk.h>
11 #include <linux/interrupt.h>
12 #include <linux/io.h>
13 #include <linux/module.h>
14 #include <linux/platform_device.h>
15 #include <linux/sched.h>
16 #include <linux/slab.h>
17 #include <linux/videodev2.h>
18 #include <linux/workqueue.h>
19 #include <media/v4l2-ctrls.h>
20 #include <media/v4l2-event.h>
21 #include <media/videobuf2-v4l2.h>
22 #include "s5p_mfc_common.h"
23 #include "s5p_mfc_ctrl.h"
24 #include "s5p_mfc_debug.h"
25 #include "s5p_mfc_dec.h"
26 #include "s5p_mfc_intr.h"
27 #include "s5p_mfc_opr.h"
28 #include "s5p_mfc_pm.h"
29 
30 static struct s5p_mfc_fmt formats[] = {
31 	{
32 		.fourcc		= V4L2_PIX_FMT_NV12MT_16X16,
33 		.codec_mode	= S5P_MFC_CODEC_NONE,
34 		.type		= MFC_FMT_RAW,
35 		.num_planes	= 2,
36 		.versions	= MFC_V6_BIT | MFC_V7_BIT,
37 	},
38 	{
39 		.fourcc		= V4L2_PIX_FMT_NV12MT,
40 		.codec_mode	= S5P_MFC_CODEC_NONE,
41 		.type		= MFC_FMT_RAW,
42 		.num_planes	= 2,
43 		.versions	= MFC_V5_BIT,
44 	},
45 	{
46 		.fourcc		= V4L2_PIX_FMT_NV12M,
47 		.codec_mode	= S5P_MFC_CODEC_NONE,
48 		.type		= MFC_FMT_RAW,
49 		.num_planes	= 2,
50 		.versions	= MFC_V6PLUS_BITS,
51 	},
52 	{
53 		.fourcc		= V4L2_PIX_FMT_NV21M,
54 		.codec_mode	= S5P_MFC_CODEC_NONE,
55 		.type		= MFC_FMT_RAW,
56 		.num_planes	= 2,
57 		.versions	= MFC_V6PLUS_BITS,
58 	},
59 	{
60 		.fourcc		= V4L2_PIX_FMT_H264,
61 		.codec_mode	= S5P_MFC_CODEC_H264_DEC,
62 		.type		= MFC_FMT_DEC,
63 		.num_planes	= 1,
64 		.versions	= MFC_V5PLUS_BITS,
65 		.flags		= V4L2_FMT_FLAG_DYN_RESOLUTION |
66 				  V4L2_FMT_FLAG_CONTINUOUS_BYTESTREAM,
67 	},
68 	{
69 		.fourcc		= V4L2_PIX_FMT_H264_MVC,
70 		.codec_mode	= S5P_MFC_CODEC_H264_MVC_DEC,
71 		.type		= MFC_FMT_DEC,
72 		.num_planes	= 1,
73 		.versions	= MFC_V6PLUS_BITS,
74 		.flags		= V4L2_FMT_FLAG_DYN_RESOLUTION |
75 				  V4L2_FMT_FLAG_CONTINUOUS_BYTESTREAM,
76 	},
77 	{
78 		.fourcc		= V4L2_PIX_FMT_H263,
79 		.codec_mode	= S5P_MFC_CODEC_H263_DEC,
80 		.type		= MFC_FMT_DEC,
81 		.num_planes	= 1,
82 		.versions	= MFC_V5PLUS_BITS,
83 		.flags		= V4L2_FMT_FLAG_DYN_RESOLUTION,
84 	},
85 	{
86 		.fourcc		= V4L2_PIX_FMT_MPEG1,
87 		.codec_mode	= S5P_MFC_CODEC_MPEG2_DEC,
88 		.type		= MFC_FMT_DEC,
89 		.num_planes	= 1,
90 		.versions	= MFC_V5PLUS_BITS,
91 		.flags		= V4L2_FMT_FLAG_DYN_RESOLUTION |
92 				  V4L2_FMT_FLAG_CONTINUOUS_BYTESTREAM,
93 	},
94 	{
95 		.fourcc		= V4L2_PIX_FMT_MPEG2,
96 		.codec_mode	= S5P_MFC_CODEC_MPEG2_DEC,
97 		.type		= MFC_FMT_DEC,
98 		.num_planes	= 1,
99 		.versions	= MFC_V5PLUS_BITS,
100 		.flags		= V4L2_FMT_FLAG_DYN_RESOLUTION |
101 				  V4L2_FMT_FLAG_CONTINUOUS_BYTESTREAM,
102 	},
103 	{
104 		.fourcc		= V4L2_PIX_FMT_MPEG4,
105 		.codec_mode	= S5P_MFC_CODEC_MPEG4_DEC,
106 		.type		= MFC_FMT_DEC,
107 		.num_planes	= 1,
108 		.versions	= MFC_V5PLUS_BITS,
109 		.flags		= V4L2_FMT_FLAG_DYN_RESOLUTION |
110 				  V4L2_FMT_FLAG_CONTINUOUS_BYTESTREAM,
111 	},
112 	{
113 		.fourcc		= V4L2_PIX_FMT_XVID,
114 		.codec_mode	= S5P_MFC_CODEC_MPEG4_DEC,
115 		.type		= MFC_FMT_DEC,
116 		.num_planes	= 1,
117 		.versions	= MFC_V5PLUS_BITS,
118 		.flags		= V4L2_FMT_FLAG_DYN_RESOLUTION,
119 	},
120 	{
121 		.fourcc		= V4L2_PIX_FMT_VC1_ANNEX_G,
122 		.codec_mode	= S5P_MFC_CODEC_VC1_DEC,
123 		.type		= MFC_FMT_DEC,
124 		.num_planes	= 1,
125 		.versions	= MFC_V5PLUS_BITS,
126 		.flags		= V4L2_FMT_FLAG_DYN_RESOLUTION,
127 	},
128 	{
129 		.fourcc		= V4L2_PIX_FMT_VC1_ANNEX_L,
130 		.codec_mode	= S5P_MFC_CODEC_VC1RCV_DEC,
131 		.type		= MFC_FMT_DEC,
132 		.num_planes	= 1,
133 		.versions	= MFC_V5PLUS_BITS,
134 		.flags		= V4L2_FMT_FLAG_DYN_RESOLUTION,
135 	},
136 	{
137 		.fourcc		= V4L2_PIX_FMT_VP8,
138 		.codec_mode	= S5P_MFC_CODEC_VP8_DEC,
139 		.type		= MFC_FMT_DEC,
140 		.num_planes	= 1,
141 		.versions	= MFC_V6PLUS_BITS,
142 		.flags		= V4L2_FMT_FLAG_DYN_RESOLUTION,
143 	},
144 	{
145 		.fourcc		= V4L2_PIX_FMT_HEVC,
146 		.codec_mode	= S5P_FIMV_CODEC_HEVC_DEC,
147 		.type		= MFC_FMT_DEC,
148 		.num_planes	= 1,
149 		.versions	= MFC_V10_BIT,
150 		.flags		= V4L2_FMT_FLAG_DYN_RESOLUTION |
151 				  V4L2_FMT_FLAG_CONTINUOUS_BYTESTREAM,
152 	},
153 	{
154 		.fourcc		= V4L2_PIX_FMT_VP9,
155 		.codec_mode	= S5P_FIMV_CODEC_VP9_DEC,
156 		.type		= MFC_FMT_DEC,
157 		.num_planes	= 1,
158 		.versions	= MFC_V10_BIT,
159 		.flags		= V4L2_FMT_FLAG_DYN_RESOLUTION,
160 	},
161 };
162 
163 #define NUM_FORMATS ARRAY_SIZE(formats)
164 
165 /* Find selected format description */
166 static struct s5p_mfc_fmt *find_format(struct v4l2_format *f, unsigned int t)
167 {
168 	unsigned int i;
169 
170 	for (i = 0; i < NUM_FORMATS; i++) {
171 		if (formats[i].fourcc == f->fmt.pix_mp.pixelformat &&
172 		    formats[i].type == t)
173 			return &formats[i];
174 	}
175 	return NULL;
176 }
177 
178 static struct mfc_control controls[] = {
179 	{
180 		.id = V4L2_CID_MPEG_MFC51_VIDEO_DECODER_H264_DISPLAY_DELAY,
181 		.type = V4L2_CTRL_TYPE_INTEGER,
182 		.name = "H264 Display Delay",
183 		.minimum = 0,
184 		.maximum = 16383,
185 		.step = 1,
186 		.default_value = 0,
187 	},
188 	{
189 		.id = V4L2_CID_MPEG_VIDEO_DEC_DISPLAY_DELAY,
190 		.type = V4L2_CTRL_TYPE_INTEGER,
191 		.minimum = 0,
192 		.maximum = 16383,
193 		.step = 1,
194 		.default_value = 0,
195 	},
196 	{
197 		.id = V4L2_CID_MPEG_MFC51_VIDEO_DECODER_H264_DISPLAY_DELAY_ENABLE,
198 		.type = V4L2_CTRL_TYPE_BOOLEAN,
199 		.name = "H264 Display Delay Enable",
200 		.minimum = 0,
201 		.maximum = 1,
202 		.step = 1,
203 		.default_value = 0,
204 	},
205 	{
206 		.id = V4L2_CID_MPEG_VIDEO_DEC_DISPLAY_DELAY_ENABLE,
207 		.type = V4L2_CTRL_TYPE_BOOLEAN,
208 		.minimum = 0,
209 		.maximum = 1,
210 		.default_value = 0,
211 	},
212 	{
213 		.id = V4L2_CID_MPEG_VIDEO_DECODER_MPEG4_DEBLOCK_FILTER,
214 		.type = V4L2_CTRL_TYPE_BOOLEAN,
215 		.name = "Mpeg4 Loop Filter Enable",
216 		.minimum = 0,
217 		.maximum = 1,
218 		.step = 1,
219 		.default_value = 0,
220 	},
221 	{
222 		.id = V4L2_CID_MPEG_VIDEO_DECODER_SLICE_INTERFACE,
223 		.type = V4L2_CTRL_TYPE_BOOLEAN,
224 		.name = "Slice Interface Enable",
225 		.minimum = 0,
226 		.maximum = 1,
227 		.step = 1,
228 		.default_value = 0,
229 	},
230 	{
231 		.id = V4L2_CID_MIN_BUFFERS_FOR_CAPTURE,
232 		.type = V4L2_CTRL_TYPE_INTEGER,
233 		.name = "Minimum number of cap bufs",
234 		.minimum = 1,
235 		.maximum = 32,
236 		.step = 1,
237 		.default_value = 1,
238 		.is_volatile = 1,
239 	},
240 };
241 
242 #define NUM_CTRLS ARRAY_SIZE(controls)
243 
244 /* Check whether a context should be run on hardware */
245 static int s5p_mfc_ctx_ready(struct s5p_mfc_ctx *ctx)
246 {
247 	/* Context is to parse header */
248 	if (ctx->src_queue_cnt >= 1 && ctx->state == MFCINST_GOT_INST)
249 		return 1;
250 	/* Context is to decode a frame */
251 	if (ctx->src_queue_cnt >= 1 &&
252 	    ctx->state == MFCINST_RUNNING &&
253 	    ctx->dst_queue_cnt >= ctx->pb_count)
254 		return 1;
255 	/* Context is to return last frame */
256 	if (ctx->state == MFCINST_FINISHING &&
257 	    ctx->dst_queue_cnt >= ctx->pb_count)
258 		return 1;
259 	/* Context is to set buffers */
260 	if (ctx->src_queue_cnt >= 1 &&
261 	    ctx->state == MFCINST_HEAD_PARSED &&
262 	    ctx->capture_state == QUEUE_BUFS_MMAPED)
263 		return 1;
264 	/* Resolution change */
265 	if ((ctx->state == MFCINST_RES_CHANGE_INIT ||
266 		ctx->state == MFCINST_RES_CHANGE_FLUSH) &&
267 		ctx->dst_queue_cnt >= ctx->pb_count)
268 		return 1;
269 	if (ctx->state == MFCINST_RES_CHANGE_END &&
270 		ctx->src_queue_cnt >= 1)
271 		return 1;
272 	mfc_debug(2, "ctx is not ready\n");
273 	return 0;
274 }
275 
276 static const struct s5p_mfc_codec_ops decoder_codec_ops = {
277 	.pre_seq_start		= NULL,
278 	.post_seq_start		= NULL,
279 	.pre_frame_start	= NULL,
280 	.post_frame_start	= NULL,
281 };
282 
283 /* Query capabilities of the device */
284 static int vidioc_querycap(struct file *file, void *priv,
285 			   struct v4l2_capability *cap)
286 {
287 	struct s5p_mfc_dev *dev = video_drvdata(file);
288 
289 	strscpy(cap->driver, S5P_MFC_NAME, sizeof(cap->driver));
290 	strscpy(cap->card, dev->vfd_dec->name, sizeof(cap->card));
291 	return 0;
292 }
293 
294 /* Enumerate format */
295 static int vidioc_enum_fmt(struct file *file, struct v4l2_fmtdesc *f,
296 							bool out)
297 {
298 	struct s5p_mfc_dev *dev = video_drvdata(file);
299 	int i, j = 0;
300 
301 	for (i = 0; i < ARRAY_SIZE(formats); ++i) {
302 		if (out && formats[i].type != MFC_FMT_DEC)
303 			continue;
304 		else if (!out && formats[i].type != MFC_FMT_RAW)
305 			continue;
306 		else if ((dev->variant->version_bit & formats[i].versions) == 0)
307 			continue;
308 
309 		if (j == f->index)
310 			break;
311 		++j;
312 	}
313 	if (i == ARRAY_SIZE(formats))
314 		return -EINVAL;
315 	f->pixelformat = formats[i].fourcc;
316 	return 0;
317 }
318 
319 static int vidioc_enum_fmt_vid_cap(struct file *file, void *pirv,
320 				   struct v4l2_fmtdesc *f)
321 {
322 	return vidioc_enum_fmt(file, f, false);
323 }
324 
325 static int vidioc_enum_fmt_vid_out(struct file *file, void *priv,
326 				   struct v4l2_fmtdesc *f)
327 {
328 	return vidioc_enum_fmt(file, f, true);
329 }
330 
331 /* Get format */
332 static int vidioc_g_fmt(struct file *file, void *priv, struct v4l2_format *f)
333 {
334 	struct s5p_mfc_ctx *ctx = fh_to_ctx(priv);
335 	struct v4l2_pix_format_mplane *pix_mp;
336 
337 	mfc_debug_enter();
338 	pix_mp = &f->fmt.pix_mp;
339 	if (f->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE &&
340 	    (ctx->state == MFCINST_GOT_INST || ctx->state ==
341 						MFCINST_RES_CHANGE_END)) {
342 		/* If the MFC is parsing the header,
343 		 * so wait until it is finished */
344 		s5p_mfc_wait_for_done_ctx(ctx, S5P_MFC_R2H_CMD_SEQ_DONE_RET,
345 									0);
346 	}
347 	if (f->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE &&
348 	    ctx->state >= MFCINST_HEAD_PARSED &&
349 	    ctx->state < MFCINST_ABORT) {
350 		/* This is run on CAPTURE (decode output) */
351 		/* Width and height are set to the dimensions
352 		   of the movie, the buffer is bigger and
353 		   further processing stages should crop to this
354 		   rectangle. */
355 		pix_mp->width = ctx->buf_width;
356 		pix_mp->height = ctx->buf_height;
357 		pix_mp->field = V4L2_FIELD_NONE;
358 		pix_mp->num_planes = 2;
359 		/* Set pixelformat to the format in which MFC
360 		   outputs the decoded frame */
361 		pix_mp->pixelformat = ctx->dst_fmt->fourcc;
362 		pix_mp->plane_fmt[0].bytesperline = ctx->buf_width;
363 		pix_mp->plane_fmt[0].sizeimage = ctx->luma_size;
364 		pix_mp->plane_fmt[1].bytesperline = ctx->buf_width;
365 		pix_mp->plane_fmt[1].sizeimage = ctx->chroma_size;
366 	} else if (f->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) {
367 		/* This is run on OUTPUT
368 		   The buffer contains compressed image
369 		   so width and height have no meaning */
370 		pix_mp->width = 0;
371 		pix_mp->height = 0;
372 		pix_mp->field = V4L2_FIELD_NONE;
373 		pix_mp->plane_fmt[0].bytesperline = ctx->dec_src_buf_size;
374 		pix_mp->plane_fmt[0].sizeimage = ctx->dec_src_buf_size;
375 		pix_mp->pixelformat = ctx->src_fmt->fourcc;
376 		pix_mp->num_planes = ctx->src_fmt->num_planes;
377 	} else {
378 		mfc_err("Format could not be read\n");
379 		mfc_debug(2, "%s-- with error\n", __func__);
380 		return -EINVAL;
381 	}
382 	mfc_debug_leave();
383 	return 0;
384 }
385 
386 /* Try format */
387 static int vidioc_try_fmt(struct file *file, void *priv, struct v4l2_format *f)
388 {
389 	struct s5p_mfc_dev *dev = video_drvdata(file);
390 	struct s5p_mfc_fmt *fmt;
391 
392 	mfc_debug(2, "Type is %d\n", f->type);
393 	if (f->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) {
394 		fmt = find_format(f, MFC_FMT_DEC);
395 		if (!fmt) {
396 			mfc_err("Unsupported format for source.\n");
397 			return -EINVAL;
398 		}
399 		if (fmt->codec_mode == S5P_FIMV_CODEC_NONE) {
400 			mfc_err("Unknown codec\n");
401 			return -EINVAL;
402 		}
403 		if ((dev->variant->version_bit & fmt->versions) == 0) {
404 			mfc_err("Unsupported format by this MFC version.\n");
405 			return -EINVAL;
406 		}
407 	} else if (f->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) {
408 		fmt = find_format(f, MFC_FMT_RAW);
409 		if (!fmt) {
410 			mfc_err("Unsupported format for destination.\n");
411 			return -EINVAL;
412 		}
413 		if ((dev->variant->version_bit & fmt->versions) == 0) {
414 			mfc_err("Unsupported format by this MFC version.\n");
415 			return -EINVAL;
416 		}
417 	}
418 
419 	return 0;
420 }
421 
422 /* Set format */
423 static int vidioc_s_fmt(struct file *file, void *priv, struct v4l2_format *f)
424 {
425 	struct s5p_mfc_dev *dev = video_drvdata(file);
426 	struct s5p_mfc_ctx *ctx = fh_to_ctx(priv);
427 	int ret = 0;
428 	struct v4l2_pix_format_mplane *pix_mp;
429 	struct s5p_mfc_buf_size *buf_size = dev->variant->buf_size;
430 
431 	mfc_debug_enter();
432 	ret = vidioc_try_fmt(file, priv, f);
433 	pix_mp = &f->fmt.pix_mp;
434 	if (ret)
435 		return ret;
436 	if (vb2_is_streaming(&ctx->vq_src) || vb2_is_streaming(&ctx->vq_dst)) {
437 		v4l2_err(&dev->v4l2_dev, "%s queue busy\n", __func__);
438 		ret = -EBUSY;
439 		goto out;
440 	}
441 	if (f->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) {
442 		/* dst_fmt is validated by call to vidioc_try_fmt */
443 		ctx->dst_fmt = find_format(f, MFC_FMT_RAW);
444 		ret = 0;
445 		goto out;
446 	} else if (f->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) {
447 		/* src_fmt is validated by call to vidioc_try_fmt */
448 		ctx->src_fmt = find_format(f, MFC_FMT_DEC);
449 		ctx->codec_mode = ctx->src_fmt->codec_mode;
450 		mfc_debug(2, "The codec number is: %d\n", ctx->codec_mode);
451 		pix_mp->height = 0;
452 		pix_mp->width = 0;
453 		if (pix_mp->plane_fmt[0].sizeimage == 0)
454 			pix_mp->plane_fmt[0].sizeimage = ctx->dec_src_buf_size =
455 								DEF_CPB_SIZE;
456 		else if (pix_mp->plane_fmt[0].sizeimage > buf_size->cpb)
457 			ctx->dec_src_buf_size = buf_size->cpb;
458 		else
459 			ctx->dec_src_buf_size = pix_mp->plane_fmt[0].sizeimage;
460 		pix_mp->plane_fmt[0].bytesperline = 0;
461 		ctx->state = MFCINST_INIT;
462 		ret = 0;
463 		goto out;
464 	} else {
465 		mfc_err("Wrong type error for S_FMT : %d", f->type);
466 		ret = -EINVAL;
467 		goto out;
468 	}
469 
470 out:
471 	mfc_debug_leave();
472 	return ret;
473 }
474 
475 static int reqbufs_output(struct s5p_mfc_dev *dev, struct s5p_mfc_ctx *ctx,
476 				struct v4l2_requestbuffers *reqbufs)
477 {
478 	int ret = 0;
479 
480 	s5p_mfc_clock_on();
481 
482 	if (reqbufs->count == 0) {
483 		mfc_debug(2, "Freeing buffers\n");
484 		ret = vb2_reqbufs(&ctx->vq_src, reqbufs);
485 		if (ret)
486 			goto out;
487 		ctx->src_bufs_cnt = 0;
488 		ctx->output_state = QUEUE_FREE;
489 	} else if (ctx->output_state == QUEUE_FREE) {
490 		/* Can only request buffers when we have a valid format set. */
491 		WARN_ON(ctx->src_bufs_cnt != 0);
492 		if (ctx->state != MFCINST_INIT) {
493 			mfc_err("Reqbufs called in an invalid state\n");
494 			ret = -EINVAL;
495 			goto out;
496 		}
497 
498 		mfc_debug(2, "Allocating %d buffers for OUTPUT queue\n",
499 				reqbufs->count);
500 		ret = vb2_reqbufs(&ctx->vq_src, reqbufs);
501 		if (ret)
502 			goto out;
503 
504 		ret = s5p_mfc_open_mfc_inst(dev, ctx);
505 		if (ret) {
506 			reqbufs->count = 0;
507 			vb2_reqbufs(&ctx->vq_src, reqbufs);
508 			goto out;
509 		}
510 
511 		ctx->output_state = QUEUE_BUFS_REQUESTED;
512 	} else {
513 		mfc_err("Buffers have already been requested\n");
514 		ret = -EINVAL;
515 	}
516 out:
517 	s5p_mfc_clock_off();
518 	if (ret)
519 		mfc_err("Failed allocating buffers for OUTPUT queue\n");
520 	return ret;
521 }
522 
523 static int reqbufs_capture(struct s5p_mfc_dev *dev, struct s5p_mfc_ctx *ctx,
524 				struct v4l2_requestbuffers *reqbufs)
525 {
526 	int ret = 0;
527 
528 	s5p_mfc_clock_on();
529 
530 	if (reqbufs->count == 0) {
531 		mfc_debug(2, "Freeing buffers\n");
532 		ret = vb2_reqbufs(&ctx->vq_dst, reqbufs);
533 		if (ret)
534 			goto out;
535 		s5p_mfc_hw_call(dev->mfc_ops, release_codec_buffers, ctx);
536 		ctx->dst_bufs_cnt = 0;
537 	} else if (ctx->capture_state == QUEUE_FREE) {
538 		WARN_ON(ctx->dst_bufs_cnt != 0);
539 		mfc_debug(2, "Allocating %d buffers for CAPTURE queue\n",
540 				reqbufs->count);
541 		ret = vb2_reqbufs(&ctx->vq_dst, reqbufs);
542 		if (ret)
543 			goto out;
544 
545 		ctx->capture_state = QUEUE_BUFS_REQUESTED;
546 		ctx->total_dpb_count = reqbufs->count;
547 
548 		ret = s5p_mfc_hw_call(dev->mfc_ops, alloc_codec_buffers, ctx);
549 		if (ret) {
550 			mfc_err("Failed to allocate decoding buffers\n");
551 			reqbufs->count = 0;
552 			vb2_reqbufs(&ctx->vq_dst, reqbufs);
553 			ret = -ENOMEM;
554 			ctx->capture_state = QUEUE_FREE;
555 			goto out;
556 		}
557 
558 		WARN_ON(ctx->dst_bufs_cnt != ctx->total_dpb_count);
559 		ctx->capture_state = QUEUE_BUFS_MMAPED;
560 
561 		if (s5p_mfc_ctx_ready(ctx))
562 			set_work_bit_irqsave(ctx);
563 		s5p_mfc_hw_call(dev->mfc_ops, try_run, dev);
564 		s5p_mfc_wait_for_done_ctx(ctx, S5P_MFC_R2H_CMD_INIT_BUFFERS_RET,
565 					  0);
566 	} else {
567 		mfc_err("Buffers have already been requested\n");
568 		ret = -EINVAL;
569 	}
570 out:
571 	s5p_mfc_clock_off();
572 	if (ret)
573 		mfc_err("Failed allocating buffers for CAPTURE queue\n");
574 	return ret;
575 }
576 
577 /* Request buffers */
578 static int vidioc_reqbufs(struct file *file, void *priv,
579 					  struct v4l2_requestbuffers *reqbufs)
580 {
581 	struct s5p_mfc_dev *dev = video_drvdata(file);
582 	struct s5p_mfc_ctx *ctx = fh_to_ctx(priv);
583 
584 	if (reqbufs->memory != V4L2_MEMORY_MMAP) {
585 		mfc_debug(2, "Only V4L2_MEMORY_MMAP is supported\n");
586 		return -EINVAL;
587 	}
588 
589 	if (reqbufs->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) {
590 		return reqbufs_output(dev, ctx, reqbufs);
591 	} else if (reqbufs->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) {
592 		return reqbufs_capture(dev, ctx, reqbufs);
593 	} else {
594 		mfc_err("Invalid type requested\n");
595 		return -EINVAL;
596 	}
597 }
598 
599 /* Query buffer */
600 static int vidioc_querybuf(struct file *file, void *priv,
601 						   struct v4l2_buffer *buf)
602 {
603 	struct s5p_mfc_ctx *ctx = fh_to_ctx(priv);
604 	int ret;
605 	int i;
606 
607 	if (buf->memory != V4L2_MEMORY_MMAP) {
608 		mfc_err("Only mmapped buffers can be used\n");
609 		return -EINVAL;
610 	}
611 	mfc_debug(2, "State: %d, buf->type: %d\n", ctx->state, buf->type);
612 	if (ctx->state == MFCINST_GOT_INST &&
613 			buf->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) {
614 		ret = vb2_querybuf(&ctx->vq_src, buf);
615 	} else if (ctx->state == MFCINST_RUNNING &&
616 			buf->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) {
617 		ret = vb2_querybuf(&ctx->vq_dst, buf);
618 		for (i = 0; i < buf->length; i++)
619 			buf->m.planes[i].m.mem_offset += DST_QUEUE_OFF_BASE;
620 	} else {
621 		mfc_err("vidioc_querybuf called in an inappropriate state\n");
622 		ret = -EINVAL;
623 	}
624 	mfc_debug_leave();
625 	return ret;
626 }
627 
628 /* Queue a buffer */
629 static int vidioc_qbuf(struct file *file, void *priv, struct v4l2_buffer *buf)
630 {
631 	struct s5p_mfc_ctx *ctx = fh_to_ctx(priv);
632 
633 	if (ctx->state == MFCINST_ERROR) {
634 		mfc_err("Call on QBUF after unrecoverable error\n");
635 		return -EIO;
636 	}
637 	if (buf->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE)
638 		return vb2_qbuf(&ctx->vq_src, NULL, buf);
639 	else if (buf->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE)
640 		return vb2_qbuf(&ctx->vq_dst, NULL, buf);
641 	return -EINVAL;
642 }
643 
644 /* Dequeue a buffer */
645 static int vidioc_dqbuf(struct file *file, void *priv, struct v4l2_buffer *buf)
646 {
647 	const struct v4l2_event ev = {
648 		.type = V4L2_EVENT_EOS
649 	};
650 	struct s5p_mfc_ctx *ctx = fh_to_ctx(priv);
651 	int ret;
652 
653 	if (ctx->state == MFCINST_ERROR) {
654 		mfc_err_limited("Call on DQBUF after unrecoverable error\n");
655 		return -EIO;
656 	}
657 
658 	switch (buf->type) {
659 	case V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE:
660 		return vb2_dqbuf(&ctx->vq_src, buf, file->f_flags & O_NONBLOCK);
661 	case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE:
662 		ret = vb2_dqbuf(&ctx->vq_dst, buf, file->f_flags & O_NONBLOCK);
663 		if (ret)
664 			return ret;
665 
666 		if (ctx->state == MFCINST_FINISHED &&
667 		    (ctx->dst_bufs[buf->index].flags & MFC_BUF_FLAG_EOS))
668 			v4l2_event_queue_fh(&ctx->fh, &ev);
669 		return 0;
670 	default:
671 		return -EINVAL;
672 	}
673 }
674 
675 /* Export DMA buffer */
676 static int vidioc_expbuf(struct file *file, void *priv,
677 	struct v4l2_exportbuffer *eb)
678 {
679 	struct s5p_mfc_ctx *ctx = fh_to_ctx(priv);
680 
681 	if (eb->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE)
682 		return vb2_expbuf(&ctx->vq_src, eb);
683 	if (eb->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE)
684 		return vb2_expbuf(&ctx->vq_dst, eb);
685 	return -EINVAL;
686 }
687 
688 /* Stream on */
689 static int vidioc_streamon(struct file *file, void *priv,
690 			   enum v4l2_buf_type type)
691 {
692 	struct s5p_mfc_ctx *ctx = fh_to_ctx(priv);
693 	int ret = -EINVAL;
694 
695 	mfc_debug_enter();
696 	if (type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE)
697 		ret = vb2_streamon(&ctx->vq_src, type);
698 	else if (type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE)
699 		ret = vb2_streamon(&ctx->vq_dst, type);
700 	mfc_debug_leave();
701 	return ret;
702 }
703 
704 /* Stream off, which equals to a pause */
705 static int vidioc_streamoff(struct file *file, void *priv,
706 			    enum v4l2_buf_type type)
707 {
708 	struct s5p_mfc_ctx *ctx = fh_to_ctx(priv);
709 
710 	if (type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE)
711 		return vb2_streamoff(&ctx->vq_src, type);
712 	else if (type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE)
713 		return vb2_streamoff(&ctx->vq_dst, type);
714 	return -EINVAL;
715 }
716 
717 /* Set controls - v4l2 control framework */
718 static int s5p_mfc_dec_s_ctrl(struct v4l2_ctrl *ctrl)
719 {
720 	struct s5p_mfc_ctx *ctx = ctrl_to_ctx(ctrl);
721 
722 	switch (ctrl->id) {
723 	case V4L2_CID_MPEG_MFC51_VIDEO_DECODER_H264_DISPLAY_DELAY:
724 	case V4L2_CID_MPEG_VIDEO_DEC_DISPLAY_DELAY:
725 		ctx->display_delay = ctrl->val;
726 		break;
727 	case V4L2_CID_MPEG_MFC51_VIDEO_DECODER_H264_DISPLAY_DELAY_ENABLE:
728 	case V4L2_CID_MPEG_VIDEO_DEC_DISPLAY_DELAY_ENABLE:
729 		ctx->display_delay_enable = ctrl->val;
730 		break;
731 	case V4L2_CID_MPEG_VIDEO_DECODER_MPEG4_DEBLOCK_FILTER:
732 		ctx->loop_filter_mpeg4 = ctrl->val;
733 		break;
734 	case V4L2_CID_MPEG_VIDEO_DECODER_SLICE_INTERFACE:
735 		ctx->slice_interface = ctrl->val;
736 		break;
737 	default:
738 		mfc_err("Invalid control 0x%08x\n", ctrl->id);
739 		return -EINVAL;
740 	}
741 	return 0;
742 }
743 
744 static int s5p_mfc_dec_g_v_ctrl(struct v4l2_ctrl *ctrl)
745 {
746 	struct s5p_mfc_ctx *ctx = ctrl_to_ctx(ctrl);
747 	struct s5p_mfc_dev *dev = ctx->dev;
748 
749 	switch (ctrl->id) {
750 	case V4L2_CID_MIN_BUFFERS_FOR_CAPTURE:
751 		if (ctx->state >= MFCINST_HEAD_PARSED &&
752 		    ctx->state < MFCINST_ABORT) {
753 			ctrl->val = ctx->pb_count;
754 			break;
755 		} else if (ctx->state != MFCINST_INIT &&
756 				ctx->state != MFCINST_RES_CHANGE_END) {
757 			v4l2_err(&dev->v4l2_dev, "Decoding not initialised\n");
758 			return -EINVAL;
759 		}
760 		/* Should wait for the header to be parsed */
761 		s5p_mfc_wait_for_done_ctx(ctx,
762 				S5P_MFC_R2H_CMD_SEQ_DONE_RET, 0);
763 		if (ctx->state >= MFCINST_HEAD_PARSED &&
764 		    ctx->state < MFCINST_ABORT) {
765 			ctrl->val = ctx->pb_count;
766 		} else {
767 			v4l2_err(&dev->v4l2_dev, "Decoding not initialised\n");
768 			return -EINVAL;
769 		}
770 		break;
771 	}
772 	return 0;
773 }
774 
775 
776 static const struct v4l2_ctrl_ops s5p_mfc_dec_ctrl_ops = {
777 	.s_ctrl = s5p_mfc_dec_s_ctrl,
778 	.g_volatile_ctrl = s5p_mfc_dec_g_v_ctrl,
779 };
780 
781 /* Get compose information */
782 static int vidioc_g_selection(struct file *file, void *priv,
783 			      struct v4l2_selection *s)
784 {
785 	struct s5p_mfc_ctx *ctx = fh_to_ctx(priv);
786 	struct s5p_mfc_dev *dev = ctx->dev;
787 	u32 left, right, top, bottom;
788 	u32 width, height;
789 
790 	if (s->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
791 		return -EINVAL;
792 
793 	if (ctx->state != MFCINST_HEAD_PARSED &&
794 	    ctx->state != MFCINST_RUNNING &&
795 	    ctx->state != MFCINST_FINISHING &&
796 	    ctx->state != MFCINST_FINISHED) {
797 		mfc_err("Can not get compose information\n");
798 		return -EINVAL;
799 	}
800 	if (ctx->src_fmt->fourcc == V4L2_PIX_FMT_H264) {
801 		left = s5p_mfc_hw_call(dev->mfc_ops, get_crop_info_h, ctx);
802 		right = left >> S5P_FIMV_SHARED_CROP_RIGHT_SHIFT;
803 		left = left & S5P_FIMV_SHARED_CROP_LEFT_MASK;
804 		top = s5p_mfc_hw_call(dev->mfc_ops, get_crop_info_v, ctx);
805 		bottom = top >> S5P_FIMV_SHARED_CROP_BOTTOM_SHIFT;
806 		top = top & S5P_FIMV_SHARED_CROP_TOP_MASK;
807 		width = ctx->img_width - left - right;
808 		height = ctx->img_height - top - bottom;
809 		mfc_debug(2, "Composing info [h264]: l=%d t=%d w=%d h=%d (r=%d b=%d fw=%d fh=%d\n",
810 			  left, top, s->r.width, s->r.height, right, bottom,
811 			  ctx->buf_width, ctx->buf_height);
812 	} else {
813 		left = 0;
814 		top = 0;
815 		width = ctx->img_width;
816 		height = ctx->img_height;
817 		mfc_debug(2, "Composing info: w=%d h=%d fw=%d fh=%d\n",
818 			  s->r.width, s->r.height, ctx->buf_width,
819 			  ctx->buf_height);
820 	}
821 
822 	switch (s->target) {
823 	case V4L2_SEL_TGT_COMPOSE:
824 	case V4L2_SEL_TGT_COMPOSE_DEFAULT:
825 	case V4L2_SEL_TGT_COMPOSE_BOUNDS:
826 		s->r.left = left;
827 		s->r.top = top;
828 		s->r.width = width;
829 		s->r.height = height;
830 		break;
831 	default:
832 		return -EINVAL;
833 	}
834 	return 0;
835 }
836 
837 static int vidioc_decoder_cmd(struct file *file, void *priv,
838 			      struct v4l2_decoder_cmd *cmd)
839 {
840 	struct s5p_mfc_ctx *ctx = fh_to_ctx(priv);
841 	struct s5p_mfc_dev *dev = ctx->dev;
842 	struct s5p_mfc_buf *buf;
843 	unsigned long flags;
844 
845 	switch (cmd->cmd) {
846 	case V4L2_DEC_CMD_STOP:
847 		if (cmd->flags != 0)
848 			return -EINVAL;
849 
850 		if (!vb2_is_streaming(&ctx->vq_src))
851 			return -EINVAL;
852 
853 		spin_lock_irqsave(&dev->irqlock, flags);
854 		if (list_empty(&ctx->src_queue)) {
855 			mfc_err("EOS: empty src queue, entering finishing state");
856 			ctx->state = MFCINST_FINISHING;
857 			if (s5p_mfc_ctx_ready(ctx))
858 				set_work_bit_irqsave(ctx);
859 			spin_unlock_irqrestore(&dev->irqlock, flags);
860 			s5p_mfc_hw_call(dev->mfc_ops, try_run, dev);
861 		} else {
862 			mfc_err("EOS: marking last buffer of stream");
863 			buf = list_entry(ctx->src_queue.prev,
864 						struct s5p_mfc_buf, list);
865 			if (buf->flags & MFC_BUF_FLAG_USED)
866 				ctx->state = MFCINST_FINISHING;
867 			else
868 				buf->flags |= MFC_BUF_FLAG_EOS;
869 			spin_unlock_irqrestore(&dev->irqlock, flags);
870 		}
871 		break;
872 	default:
873 		return -EINVAL;
874 	}
875 	return 0;
876 }
877 
878 static int vidioc_subscribe_event(struct v4l2_fh *fh,
879 				const struct  v4l2_event_subscription *sub)
880 {
881 	switch (sub->type) {
882 	case V4L2_EVENT_EOS:
883 		return v4l2_event_subscribe(fh, sub, 2, NULL);
884 	case V4L2_EVENT_SOURCE_CHANGE:
885 		return v4l2_src_change_event_subscribe(fh, sub);
886 	default:
887 		return -EINVAL;
888 	}
889 }
890 
891 
892 /* v4l2_ioctl_ops */
893 static const struct v4l2_ioctl_ops s5p_mfc_dec_ioctl_ops = {
894 	.vidioc_querycap = vidioc_querycap,
895 	.vidioc_enum_fmt_vid_cap = vidioc_enum_fmt_vid_cap,
896 	.vidioc_enum_fmt_vid_out = vidioc_enum_fmt_vid_out,
897 	.vidioc_g_fmt_vid_cap_mplane = vidioc_g_fmt,
898 	.vidioc_g_fmt_vid_out_mplane = vidioc_g_fmt,
899 	.vidioc_try_fmt_vid_cap_mplane = vidioc_try_fmt,
900 	.vidioc_try_fmt_vid_out_mplane = vidioc_try_fmt,
901 	.vidioc_s_fmt_vid_cap_mplane = vidioc_s_fmt,
902 	.vidioc_s_fmt_vid_out_mplane = vidioc_s_fmt,
903 	.vidioc_reqbufs = vidioc_reqbufs,
904 	.vidioc_querybuf = vidioc_querybuf,
905 	.vidioc_qbuf = vidioc_qbuf,
906 	.vidioc_dqbuf = vidioc_dqbuf,
907 	.vidioc_expbuf = vidioc_expbuf,
908 	.vidioc_streamon = vidioc_streamon,
909 	.vidioc_streamoff = vidioc_streamoff,
910 	.vidioc_g_selection = vidioc_g_selection,
911 	.vidioc_decoder_cmd = vidioc_decoder_cmd,
912 	.vidioc_subscribe_event = vidioc_subscribe_event,
913 	.vidioc_unsubscribe_event = v4l2_event_unsubscribe,
914 };
915 
916 static int s5p_mfc_queue_setup(struct vb2_queue *vq,
917 			unsigned int *buf_count,
918 			unsigned int *plane_count, unsigned int psize[],
919 			struct device *alloc_devs[])
920 {
921 	struct s5p_mfc_ctx *ctx = fh_to_ctx(vq->drv_priv);
922 	struct s5p_mfc_dev *dev = ctx->dev;
923 
924 	/* Video output for decoding (source)
925 	 * this can be set after getting an instance */
926 	if (ctx->state == MFCINST_INIT &&
927 	    vq->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) {
928 		/* A single plane is required for input */
929 		*plane_count = 1;
930 		if (*buf_count < 1)
931 			*buf_count = 1;
932 		if (*buf_count > MFC_MAX_BUFFERS)
933 			*buf_count = MFC_MAX_BUFFERS;
934 	/* Video capture for decoding (destination)
935 	 * this can be set after the header was parsed */
936 	} else if (ctx->state == MFCINST_HEAD_PARSED &&
937 		   vq->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) {
938 		/* Output plane count is 2 - one for Y and one for CbCr */
939 		*plane_count = 2;
940 		/* Setup buffer count */
941 		if (*buf_count < ctx->pb_count)
942 			*buf_count = ctx->pb_count;
943 		if (*buf_count > ctx->pb_count + MFC_MAX_EXTRA_DPB)
944 			*buf_count = ctx->pb_count + MFC_MAX_EXTRA_DPB;
945 		if (*buf_count > MFC_MAX_BUFFERS)
946 			*buf_count = MFC_MAX_BUFFERS;
947 	} else {
948 		mfc_err("State seems invalid. State = %d, vq->type = %d\n",
949 							ctx->state, vq->type);
950 		return -EINVAL;
951 	}
952 	mfc_debug(2, "Buffer count=%d, plane count=%d\n",
953 						*buf_count, *plane_count);
954 	if (ctx->state == MFCINST_HEAD_PARSED &&
955 	    vq->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) {
956 		psize[0] = ctx->luma_size;
957 		psize[1] = ctx->chroma_size;
958 
959 		if (IS_MFCV6_PLUS(dev))
960 			alloc_devs[0] = ctx->dev->mem_dev[BANK_L_CTX];
961 		else
962 			alloc_devs[0] = ctx->dev->mem_dev[BANK_R_CTX];
963 		alloc_devs[1] = ctx->dev->mem_dev[BANK_L_CTX];
964 	} else if (vq->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE &&
965 		   ctx->state == MFCINST_INIT) {
966 		psize[0] = ctx->dec_src_buf_size;
967 		alloc_devs[0] = ctx->dev->mem_dev[BANK_L_CTX];
968 	} else {
969 		mfc_err("This video node is dedicated to decoding. Decoding not initialized\n");
970 		return -EINVAL;
971 	}
972 	return 0;
973 }
974 
975 static int s5p_mfc_buf_init(struct vb2_buffer *vb)
976 {
977 	struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
978 	struct vb2_queue *vq = vb->vb2_queue;
979 	struct s5p_mfc_ctx *ctx = fh_to_ctx(vq->drv_priv);
980 	unsigned int i;
981 
982 	if (vq->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) {
983 		if (ctx->capture_state == QUEUE_BUFS_MMAPED)
984 			return 0;
985 		for (i = 0; i < ctx->dst_fmt->num_planes; i++) {
986 			if (IS_ERR_OR_NULL(ERR_PTR(
987 					vb2_dma_contig_plane_dma_addr(vb, i)))) {
988 				mfc_err("Plane mem not allocated\n");
989 				return -EINVAL;
990 			}
991 		}
992 		if (vb2_plane_size(vb, 0) < ctx->luma_size ||
993 			vb2_plane_size(vb, 1) < ctx->chroma_size) {
994 			mfc_err("Plane buffer (CAPTURE) is too small\n");
995 			return -EINVAL;
996 		}
997 		i = vb->index;
998 		ctx->dst_bufs[i].b = vbuf;
999 		ctx->dst_bufs[i].cookie.raw.luma =
1000 					vb2_dma_contig_plane_dma_addr(vb, 0);
1001 		ctx->dst_bufs[i].cookie.raw.chroma =
1002 					vb2_dma_contig_plane_dma_addr(vb, 1);
1003 		ctx->dst_bufs_cnt++;
1004 	} else if (vq->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) {
1005 		if (IS_ERR_OR_NULL(ERR_PTR(
1006 					vb2_dma_contig_plane_dma_addr(vb, 0)))) {
1007 			mfc_err("Plane memory not allocated\n");
1008 			return -EINVAL;
1009 		}
1010 		if (vb2_plane_size(vb, 0) < ctx->dec_src_buf_size) {
1011 			mfc_err("Plane buffer (OUTPUT) is too small\n");
1012 			return -EINVAL;
1013 		}
1014 
1015 		i = vb->index;
1016 		ctx->src_bufs[i].b = vbuf;
1017 		ctx->src_bufs[i].cookie.stream =
1018 					vb2_dma_contig_plane_dma_addr(vb, 0);
1019 		ctx->src_bufs_cnt++;
1020 	} else {
1021 		mfc_err("s5p_mfc_buf_init: unknown queue type\n");
1022 		return -EINVAL;
1023 	}
1024 	return 0;
1025 }
1026 
1027 static int s5p_mfc_start_streaming(struct vb2_queue *q, unsigned int count)
1028 {
1029 	struct s5p_mfc_ctx *ctx = fh_to_ctx(q->drv_priv);
1030 	struct s5p_mfc_dev *dev = ctx->dev;
1031 
1032 	v4l2_ctrl_handler_setup(&ctx->ctrl_handler);
1033 	if (ctx->state == MFCINST_FINISHING ||
1034 		ctx->state == MFCINST_FINISHED)
1035 		ctx->state = MFCINST_RUNNING;
1036 	/* If context is ready then dev = work->data;schedule it to run */
1037 	if (s5p_mfc_ctx_ready(ctx))
1038 		set_work_bit_irqsave(ctx);
1039 	s5p_mfc_hw_call(dev->mfc_ops, try_run, dev);
1040 	return 0;
1041 }
1042 
1043 static void s5p_mfc_stop_streaming(struct vb2_queue *q)
1044 {
1045 	unsigned long flags;
1046 	struct s5p_mfc_ctx *ctx = fh_to_ctx(q->drv_priv);
1047 	struct s5p_mfc_dev *dev = ctx->dev;
1048 	int aborted = 0;
1049 
1050 	spin_lock_irqsave(&dev->irqlock, flags);
1051 	if ((ctx->state == MFCINST_FINISHING ||
1052 		ctx->state ==  MFCINST_RUNNING) &&
1053 		dev->curr_ctx == ctx->num && dev->hw_lock) {
1054 		ctx->state = MFCINST_ABORT;
1055 		spin_unlock_irqrestore(&dev->irqlock, flags);
1056 		s5p_mfc_wait_for_done_ctx(ctx,
1057 					S5P_MFC_R2H_CMD_FRAME_DONE_RET, 0);
1058 		aborted = 1;
1059 		spin_lock_irqsave(&dev->irqlock, flags);
1060 	}
1061 	if (q->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) {
1062 		s5p_mfc_cleanup_queue(&ctx->dst_queue, &ctx->vq_dst);
1063 		INIT_LIST_HEAD(&ctx->dst_queue);
1064 		ctx->dst_queue_cnt = 0;
1065 		ctx->dpb_flush_flag = 1;
1066 		ctx->dec_dst_flag = 0;
1067 		if (IS_MFCV6_PLUS(dev) && (ctx->state == MFCINST_RUNNING)) {
1068 			ctx->state = MFCINST_FLUSH;
1069 			set_work_bit_irqsave(ctx);
1070 			s5p_mfc_hw_call(dev->mfc_ops, try_run, dev);
1071 			spin_unlock_irqrestore(&dev->irqlock, flags);
1072 			if (s5p_mfc_wait_for_done_ctx(ctx,
1073 				S5P_MFC_R2H_CMD_DPB_FLUSH_RET, 0))
1074 				mfc_err("Err flushing buffers\n");
1075 			spin_lock_irqsave(&dev->irqlock, flags);
1076 		}
1077 	} else if (q->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) {
1078 		s5p_mfc_cleanup_queue(&ctx->src_queue, &ctx->vq_src);
1079 		INIT_LIST_HEAD(&ctx->src_queue);
1080 		ctx->src_queue_cnt = 0;
1081 	}
1082 	if (aborted)
1083 		ctx->state = MFCINST_RUNNING;
1084 	spin_unlock_irqrestore(&dev->irqlock, flags);
1085 }
1086 
1087 
1088 static void s5p_mfc_buf_queue(struct vb2_buffer *vb)
1089 {
1090 	struct vb2_queue *vq = vb->vb2_queue;
1091 	struct s5p_mfc_ctx *ctx = fh_to_ctx(vq->drv_priv);
1092 	struct s5p_mfc_dev *dev = ctx->dev;
1093 	unsigned long flags;
1094 	struct s5p_mfc_buf *mfc_buf;
1095 
1096 	if (vq->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) {
1097 		mfc_buf = &ctx->src_bufs[vb->index];
1098 		mfc_buf->flags &= ~MFC_BUF_FLAG_USED;
1099 		spin_lock_irqsave(&dev->irqlock, flags);
1100 		list_add_tail(&mfc_buf->list, &ctx->src_queue);
1101 		ctx->src_queue_cnt++;
1102 		spin_unlock_irqrestore(&dev->irqlock, flags);
1103 	} else if (vq->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) {
1104 		mfc_buf = &ctx->dst_bufs[vb->index];
1105 		mfc_buf->flags &= ~MFC_BUF_FLAG_USED;
1106 		/* Mark destination as available for use by MFC */
1107 		spin_lock_irqsave(&dev->irqlock, flags);
1108 		set_bit(vb->index, &ctx->dec_dst_flag);
1109 		list_add_tail(&mfc_buf->list, &ctx->dst_queue);
1110 		ctx->dst_queue_cnt++;
1111 		spin_unlock_irqrestore(&dev->irqlock, flags);
1112 	} else {
1113 		mfc_err("Unsupported buffer type (%d)\n", vq->type);
1114 	}
1115 	if (s5p_mfc_ctx_ready(ctx))
1116 		set_work_bit_irqsave(ctx);
1117 	s5p_mfc_hw_call(dev->mfc_ops, try_run, dev);
1118 }
1119 
1120 static struct vb2_ops s5p_mfc_dec_qops = {
1121 	.queue_setup		= s5p_mfc_queue_setup,
1122 	.wait_prepare		= vb2_ops_wait_prepare,
1123 	.wait_finish		= vb2_ops_wait_finish,
1124 	.buf_init		= s5p_mfc_buf_init,
1125 	.start_streaming	= s5p_mfc_start_streaming,
1126 	.stop_streaming		= s5p_mfc_stop_streaming,
1127 	.buf_queue		= s5p_mfc_buf_queue,
1128 };
1129 
1130 const struct s5p_mfc_codec_ops *get_dec_codec_ops(void)
1131 {
1132 	return &decoder_codec_ops;
1133 }
1134 
1135 struct vb2_ops *get_dec_queue_ops(void)
1136 {
1137 	return &s5p_mfc_dec_qops;
1138 }
1139 
1140 const struct v4l2_ioctl_ops *get_dec_v4l2_ioctl_ops(void)
1141 {
1142 	return &s5p_mfc_dec_ioctl_ops;
1143 }
1144 
1145 #define IS_MFC51_PRIV(x) ((V4L2_CTRL_ID2WHICH(x) == V4L2_CTRL_CLASS_CODEC) \
1146 						&& V4L2_CTRL_DRIVER_PRIV(x))
1147 
1148 int s5p_mfc_dec_ctrls_setup(struct s5p_mfc_ctx *ctx)
1149 {
1150 	struct v4l2_ctrl_config cfg;
1151 	int i;
1152 
1153 	v4l2_ctrl_handler_init(&ctx->ctrl_handler, NUM_CTRLS);
1154 	if (ctx->ctrl_handler.error) {
1155 		mfc_err("v4l2_ctrl_handler_init failed\n");
1156 		return ctx->ctrl_handler.error;
1157 	}
1158 
1159 	for (i = 0; i < NUM_CTRLS; i++) {
1160 		if (IS_MFC51_PRIV(controls[i].id)) {
1161 			memset(&cfg, 0, sizeof(struct v4l2_ctrl_config));
1162 			cfg.ops = &s5p_mfc_dec_ctrl_ops;
1163 			cfg.id = controls[i].id;
1164 			cfg.min = controls[i].minimum;
1165 			cfg.max = controls[i].maximum;
1166 			cfg.def = controls[i].default_value;
1167 			cfg.name = controls[i].name;
1168 			cfg.type = controls[i].type;
1169 
1170 			cfg.step = controls[i].step;
1171 			cfg.menu_skip_mask = 0;
1172 
1173 			ctx->ctrls[i] = v4l2_ctrl_new_custom(&ctx->ctrl_handler,
1174 					&cfg, NULL);
1175 		} else {
1176 			ctx->ctrls[i] = v4l2_ctrl_new_std(&ctx->ctrl_handler,
1177 					&s5p_mfc_dec_ctrl_ops,
1178 					controls[i].id, controls[i].minimum,
1179 					controls[i].maximum, controls[i].step,
1180 					controls[i].default_value);
1181 		}
1182 		if (ctx->ctrl_handler.error) {
1183 			mfc_err("Adding control (%d) failed\n", i);
1184 			return ctx->ctrl_handler.error;
1185 		}
1186 		if (controls[i].is_volatile && ctx->ctrls[i])
1187 			ctx->ctrls[i]->flags |= V4L2_CTRL_FLAG_VOLATILE;
1188 	}
1189 	return 0;
1190 }
1191 
1192 void s5p_mfc_dec_ctrls_delete(struct s5p_mfc_ctx *ctx)
1193 {
1194 	int i;
1195 
1196 	v4l2_ctrl_handler_free(&ctx->ctrl_handler);
1197 	for (i = 0; i < NUM_CTRLS; i++)
1198 		ctx->ctrls[i] = NULL;
1199 }
1200 
1201 void s5p_mfc_dec_init(struct s5p_mfc_ctx *ctx)
1202 {
1203 	struct v4l2_format f;
1204 	f.fmt.pix_mp.pixelformat = V4L2_PIX_FMT_H264;
1205 	ctx->src_fmt = find_format(&f, MFC_FMT_DEC);
1206 	if (IS_MFCV8_PLUS(ctx->dev))
1207 		f.fmt.pix_mp.pixelformat = V4L2_PIX_FMT_NV12M;
1208 	else if (IS_MFCV6_PLUS(ctx->dev))
1209 		f.fmt.pix_mp.pixelformat = V4L2_PIX_FMT_NV12MT_16X16;
1210 	else
1211 		f.fmt.pix_mp.pixelformat = V4L2_PIX_FMT_NV12MT;
1212 	ctx->dst_fmt = find_format(&f, MFC_FMT_RAW);
1213 	mfc_debug(2, "Default src_fmt is %p, dest_fmt is %p\n",
1214 			ctx->src_fmt, ctx->dst_fmt);
1215 }
1216 
1217