linux/drivers/media/platform/s5p-mfc/s5p_mfc_dec.c
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   1/*
   2 * linux/drivers/media/platform/s5p-mfc/s5p_mfc_dec.c
   3 *
   4 * Copyright (C) 2011 Samsung Electronics Co., Ltd.
   5 *              http://www.samsung.com/
   6 * Kamil Debski, <k.debski@samsung.com>
   7 *
   8 * This program is free software; you can redistribute it and/or modify
   9 * it under the terms of the GNU General Public License as published by
  10 * the Free Software Foundation; either version 2 of the License, or
  11 * (at your option) any later version.
  12 */
  13
  14#include <linux/clk.h>
  15#include <linux/interrupt.h>
  16#include <linux/io.h>
  17#include <linux/module.h>
  18#include <linux/platform_device.h>
  19#include <linux/sched.h>
  20#include <linux/slab.h>
  21#include <linux/version.h>
  22#include <linux/videodev2.h>
  23#include <linux/workqueue.h>
  24#include <media/v4l2-ctrls.h>
  25#include <media/v4l2-event.h>
  26#include <media/videobuf2-core.h>
  27#include "s5p_mfc_common.h"
  28#include "s5p_mfc_debug.h"
  29#include "s5p_mfc_dec.h"
  30#include "s5p_mfc_intr.h"
  31#include "s5p_mfc_opr.h"
  32#include "s5p_mfc_pm.h"
  33
  34#define DEF_SRC_FMT_DEC V4L2_PIX_FMT_H264
  35#define DEF_DST_FMT_DEC V4L2_PIX_FMT_NV12MT_16X16
  36
  37static struct s5p_mfc_fmt formats[] = {
  38        {
  39                .name           = "4:2:0 2 Planes 16x16 Tiles",
  40                .fourcc         = V4L2_PIX_FMT_NV12MT_16X16,
  41                .codec_mode     = S5P_MFC_CODEC_NONE,
  42                .type           = MFC_FMT_RAW,
  43                .num_planes     = 2,
  44        },
  45        {
  46                .name           = "4:2:0 2 Planes 64x32 Tiles",
  47                .fourcc         = V4L2_PIX_FMT_NV12MT,
  48                .codec_mode     = S5P_MFC_CODEC_NONE,
  49                .type           = MFC_FMT_RAW,
  50                .num_planes     = 2,
  51        },
  52        {
  53                .name           = "4:2:0 2 Planes Y/CbCr",
  54                .fourcc         = V4L2_PIX_FMT_NV12M,
  55                .codec_mode     = S5P_MFC_CODEC_NONE,
  56                .type           = MFC_FMT_RAW,
  57                .num_planes     = 2,
  58        },
  59        {
  60                .name           = "4:2:0 2 Planes Y/CrCb",
  61                .fourcc         = V4L2_PIX_FMT_NV21M,
  62                .codec_mode     = S5P_MFC_CODEC_NONE,
  63                .type           = MFC_FMT_RAW,
  64                .num_planes     = 2,
  65        },
  66        {
  67                .name           = "H264 Encoded Stream",
  68                .fourcc         = V4L2_PIX_FMT_H264,
  69                .codec_mode     = S5P_MFC_CODEC_H264_DEC,
  70                .type           = MFC_FMT_DEC,
  71                .num_planes     = 1,
  72        },
  73        {
  74                .name           = "H264/MVC Encoded Stream",
  75                .fourcc         = V4L2_PIX_FMT_H264_MVC,
  76                .codec_mode     = S5P_MFC_CODEC_H264_MVC_DEC,
  77                .type           = MFC_FMT_DEC,
  78                .num_planes     = 1,
  79        },
  80        {
  81                .name           = "H263 Encoded Stream",
  82                .fourcc         = V4L2_PIX_FMT_H263,
  83                .codec_mode     = S5P_MFC_CODEC_H263_DEC,
  84                .type           = MFC_FMT_DEC,
  85                .num_planes     = 1,
  86        },
  87        {
  88                .name           = "MPEG1 Encoded Stream",
  89                .fourcc         = V4L2_PIX_FMT_MPEG1,
  90                .codec_mode     = S5P_MFC_CODEC_MPEG2_DEC,
  91                .type           = MFC_FMT_DEC,
  92                .num_planes     = 1,
  93        },
  94        {
  95                .name           = "MPEG2 Encoded Stream",
  96                .fourcc         = V4L2_PIX_FMT_MPEG2,
  97                .codec_mode     = S5P_MFC_CODEC_MPEG2_DEC,
  98                .type           = MFC_FMT_DEC,
  99                .num_planes     = 1,
 100        },
 101        {
 102                .name           = "MPEG4 Encoded Stream",
 103                .fourcc         = V4L2_PIX_FMT_MPEG4,
 104                .codec_mode     = S5P_MFC_CODEC_MPEG4_DEC,
 105                .type           = MFC_FMT_DEC,
 106                .num_planes     = 1,
 107        },
 108        {
 109                .name           = "XviD Encoded Stream",
 110                .fourcc         = V4L2_PIX_FMT_XVID,
 111                .codec_mode     = S5P_MFC_CODEC_MPEG4_DEC,
 112                .type           = MFC_FMT_DEC,
 113                .num_planes     = 1,
 114        },
 115        {
 116                .name           = "VC1 Encoded Stream",
 117                .fourcc         = V4L2_PIX_FMT_VC1_ANNEX_G,
 118                .codec_mode     = S5P_MFC_CODEC_VC1_DEC,
 119                .type           = MFC_FMT_DEC,
 120                .num_planes     = 1,
 121        },
 122        {
 123                .name           = "VC1 RCV Encoded Stream",
 124                .fourcc         = V4L2_PIX_FMT_VC1_ANNEX_L,
 125                .codec_mode     = S5P_MFC_CODEC_VC1RCV_DEC,
 126                .type           = MFC_FMT_DEC,
 127                .num_planes     = 1,
 128        },
 129        {
 130                .name           = "VP8 Encoded Stream",
 131                .fourcc         = V4L2_PIX_FMT_VP8,
 132                .codec_mode     = S5P_MFC_CODEC_VP8_DEC,
 133                .type           = MFC_FMT_DEC,
 134                .num_planes     = 1,
 135        },
 136};
 137
 138#define NUM_FORMATS ARRAY_SIZE(formats)
 139
 140/* Find selected format description */
 141static struct s5p_mfc_fmt *find_format(struct v4l2_format *f, unsigned int t)
 142{
 143        unsigned int i;
 144
 145        for (i = 0; i < NUM_FORMATS; i++) {
 146                if (formats[i].fourcc == f->fmt.pix_mp.pixelformat &&
 147                    formats[i].type == t)
 148                        return &formats[i];
 149        }
 150        return NULL;
 151}
 152
 153static struct mfc_control controls[] = {
 154        {
 155                .id = V4L2_CID_MPEG_MFC51_VIDEO_DECODER_H264_DISPLAY_DELAY,
 156                .type = V4L2_CTRL_TYPE_INTEGER,
 157                .name = "H264 Display Delay",
 158                .minimum = 0,
 159                .maximum = 16383,
 160                .step = 1,
 161                .default_value = 0,
 162        },
 163        {
 164                .id = V4L2_CID_MPEG_MFC51_VIDEO_DECODER_H264_DISPLAY_DELAY_ENABLE,
 165                .type = V4L2_CTRL_TYPE_BOOLEAN,
 166                .name = "H264 Display Delay Enable",
 167                .minimum = 0,
 168                .maximum = 1,
 169                .step = 1,
 170                .default_value = 0,
 171        },
 172        {
 173                .id = V4L2_CID_MPEG_VIDEO_DECODER_MPEG4_DEBLOCK_FILTER,
 174                .type = V4L2_CTRL_TYPE_BOOLEAN,
 175                .name = "Mpeg4 Loop Filter Enable",
 176                .minimum = 0,
 177                .maximum = 1,
 178                .step = 1,
 179                .default_value = 0,
 180        },
 181        {
 182                .id = V4L2_CID_MPEG_VIDEO_DECODER_SLICE_INTERFACE,
 183                .type = V4L2_CTRL_TYPE_BOOLEAN,
 184                .name = "Slice Interface Enable",
 185                .minimum = 0,
 186                .maximum = 1,
 187                .step = 1,
 188                .default_value = 0,
 189        },
 190        {
 191                .id = V4L2_CID_MIN_BUFFERS_FOR_CAPTURE,
 192                .type = V4L2_CTRL_TYPE_INTEGER,
 193                .name = "Minimum number of cap bufs",
 194                .minimum = 1,
 195                .maximum = 32,
 196                .step = 1,
 197                .default_value = 1,
 198                .is_volatile = 1,
 199        },
 200};
 201
 202#define NUM_CTRLS ARRAY_SIZE(controls)
 203
 204/* Check whether a context should be run on hardware */
 205static int s5p_mfc_ctx_ready(struct s5p_mfc_ctx *ctx)
 206{
 207        /* Context is to parse header */
 208        if (ctx->src_queue_cnt >= 1 && ctx->state == MFCINST_GOT_INST)
 209                return 1;
 210        /* Context is to decode a frame */
 211        if (ctx->src_queue_cnt >= 1 &&
 212            ctx->state == MFCINST_RUNNING &&
 213            ctx->dst_queue_cnt >= ctx->pb_count)
 214                return 1;
 215        /* Context is to return last frame */
 216        if (ctx->state == MFCINST_FINISHING &&
 217            ctx->dst_queue_cnt >= ctx->pb_count)
 218                return 1;
 219        /* Context is to set buffers */
 220        if (ctx->src_queue_cnt >= 1 &&
 221            ctx->state == MFCINST_HEAD_PARSED &&
 222            ctx->capture_state == QUEUE_BUFS_MMAPED)
 223                return 1;
 224        /* Resolution change */
 225        if ((ctx->state == MFCINST_RES_CHANGE_INIT ||
 226                ctx->state == MFCINST_RES_CHANGE_FLUSH) &&
 227                ctx->dst_queue_cnt >= ctx->pb_count)
 228                return 1;
 229        if (ctx->state == MFCINST_RES_CHANGE_END &&
 230                ctx->src_queue_cnt >= 1)
 231                return 1;
 232        mfc_debug(2, "ctx is not ready\n");
 233        return 0;
 234}
 235
 236static struct s5p_mfc_codec_ops decoder_codec_ops = {
 237        .pre_seq_start          = NULL,
 238        .post_seq_start         = NULL,
 239        .pre_frame_start        = NULL,
 240        .post_frame_start       = NULL,
 241};
 242
 243/* Query capabilities of the device */
 244static int vidioc_querycap(struct file *file, void *priv,
 245                           struct v4l2_capability *cap)
 246{
 247        struct s5p_mfc_dev *dev = video_drvdata(file);
 248
 249        strncpy(cap->driver, dev->plat_dev->name, sizeof(cap->driver) - 1);
 250        strncpy(cap->card, dev->plat_dev->name, sizeof(cap->card) - 1);
 251        cap->bus_info[0] = 0;
 252        cap->version = KERNEL_VERSION(1, 0, 0);
 253        /*
 254         * This is only a mem-to-mem video device. The capture and output
 255         * device capability flags are left only for backward compatibility
 256         * and are scheduled for removal.
 257         */
 258        cap->capabilities = V4L2_CAP_VIDEO_M2M_MPLANE | V4L2_CAP_STREAMING |
 259                            V4L2_CAP_VIDEO_CAPTURE_MPLANE |
 260                            V4L2_CAP_VIDEO_OUTPUT_MPLANE;
 261        return 0;
 262}
 263
 264/* Enumerate format */
 265static int vidioc_enum_fmt(struct v4l2_fmtdesc *f, bool mplane, bool out)
 266{
 267        struct s5p_mfc_fmt *fmt;
 268        int i, j = 0;
 269
 270        for (i = 0; i < ARRAY_SIZE(formats); ++i) {
 271                if (mplane && formats[i].num_planes == 1)
 272                        continue;
 273                else if (!mplane && formats[i].num_planes > 1)
 274                        continue;
 275                if (out && formats[i].type != MFC_FMT_DEC)
 276                        continue;
 277                else if (!out && formats[i].type != MFC_FMT_RAW)
 278                        continue;
 279
 280                if (j == f->index)
 281                        break;
 282                ++j;
 283        }
 284        if (i == ARRAY_SIZE(formats))
 285                return -EINVAL;
 286        fmt = &formats[i];
 287        strlcpy(f->description, fmt->name, sizeof(f->description));
 288        f->pixelformat = fmt->fourcc;
 289        return 0;
 290}
 291
 292static int vidioc_enum_fmt_vid_cap(struct file *file, void *pirv,
 293                                                        struct v4l2_fmtdesc *f)
 294{
 295        return vidioc_enum_fmt(f, false, false);
 296}
 297
 298static int vidioc_enum_fmt_vid_cap_mplane(struct file *file, void *pirv,
 299                                                        struct v4l2_fmtdesc *f)
 300{
 301        return vidioc_enum_fmt(f, true, false);
 302}
 303
 304static int vidioc_enum_fmt_vid_out(struct file *file, void *prov,
 305                                                        struct v4l2_fmtdesc *f)
 306{
 307        return vidioc_enum_fmt(f, false, true);
 308}
 309
 310static int vidioc_enum_fmt_vid_out_mplane(struct file *file, void *prov,
 311                                                        struct v4l2_fmtdesc *f)
 312{
 313        return vidioc_enum_fmt(f, true, true);
 314}
 315
 316/* Get format */
 317static int vidioc_g_fmt(struct file *file, void *priv, struct v4l2_format *f)
 318{
 319        struct s5p_mfc_ctx *ctx = fh_to_ctx(priv);
 320        struct v4l2_pix_format_mplane *pix_mp;
 321
 322        mfc_debug_enter();
 323        pix_mp = &f->fmt.pix_mp;
 324        if (f->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE &&
 325            (ctx->state == MFCINST_GOT_INST || ctx->state ==
 326                                                MFCINST_RES_CHANGE_END)) {
 327                /* If the MFC is parsing the header,
 328                 * so wait until it is finished */
 329                s5p_mfc_clean_ctx_int_flags(ctx);
 330                s5p_mfc_wait_for_done_ctx(ctx, S5P_MFC_R2H_CMD_SEQ_DONE_RET,
 331                                                                        0);
 332        }
 333        if (f->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE &&
 334            ctx->state >= MFCINST_HEAD_PARSED &&
 335            ctx->state < MFCINST_ABORT) {
 336                /* This is run on CAPTURE (decode output) */
 337                /* Width and height are set to the dimensions
 338                   of the movie, the buffer is bigger and
 339                   further processing stages should crop to this
 340                   rectangle. */
 341                pix_mp->width = ctx->buf_width;
 342                pix_mp->height = ctx->buf_height;
 343                pix_mp->field = V4L2_FIELD_NONE;
 344                pix_mp->num_planes = 2;
 345                /* Set pixelformat to the format in which MFC
 346                   outputs the decoded frame */
 347                pix_mp->pixelformat = ctx->dst_fmt->fourcc;
 348                pix_mp->plane_fmt[0].bytesperline = ctx->buf_width;
 349                pix_mp->plane_fmt[0].sizeimage = ctx->luma_size;
 350                pix_mp->plane_fmt[1].bytesperline = ctx->buf_width;
 351                pix_mp->plane_fmt[1].sizeimage = ctx->chroma_size;
 352        } else if (f->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) {
 353                /* This is run on OUTPUT
 354                   The buffer contains compressed image
 355                   so width and height have no meaning */
 356                pix_mp->width = 0;
 357                pix_mp->height = 0;
 358                pix_mp->field = V4L2_FIELD_NONE;
 359                pix_mp->plane_fmt[0].bytesperline = ctx->dec_src_buf_size;
 360                pix_mp->plane_fmt[0].sizeimage = ctx->dec_src_buf_size;
 361                pix_mp->pixelformat = ctx->src_fmt->fourcc;
 362                pix_mp->num_planes = ctx->src_fmt->num_planes;
 363        } else {
 364                mfc_err("Format could not be read\n");
 365                mfc_debug(2, "%s-- with error\n", __func__);
 366                return -EINVAL;
 367        }
 368        mfc_debug_leave();
 369        return 0;
 370}
 371
 372/* Try format */
 373static int vidioc_try_fmt(struct file *file, void *priv, struct v4l2_format *f)
 374{
 375        struct s5p_mfc_dev *dev = video_drvdata(file);
 376        struct s5p_mfc_fmt *fmt;
 377
 378        mfc_debug(2, "Type is %d\n", f->type);
 379        if (f->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) {
 380                fmt = find_format(f, MFC_FMT_DEC);
 381                if (!fmt) {
 382                        mfc_err("Unsupported format for source.\n");
 383                        return -EINVAL;
 384                }
 385                if (fmt->codec_mode == S5P_FIMV_CODEC_NONE) {
 386                        mfc_err("Unknown codec\n");
 387                        return -EINVAL;
 388                }
 389                if (!IS_MFCV6(dev)) {
 390                        if (fmt->fourcc == V4L2_PIX_FMT_VP8) {
 391                                mfc_err("Not supported format.\n");
 392                                return -EINVAL;
 393                        }
 394                }
 395        } else if (f->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) {
 396                fmt = find_format(f, MFC_FMT_RAW);
 397                if (!fmt) {
 398                        mfc_err("Unsupported format for destination.\n");
 399                        return -EINVAL;
 400                }
 401                if (IS_MFCV6(dev) && (fmt->fourcc == V4L2_PIX_FMT_NV12MT)) {
 402                        mfc_err("Not supported format.\n");
 403                        return -EINVAL;
 404                } else if (!IS_MFCV6(dev) &&
 405                                (fmt->fourcc != V4L2_PIX_FMT_NV12MT)) {
 406                        mfc_err("Not supported format.\n");
 407                        return -EINVAL;
 408                }
 409        }
 410
 411        return 0;
 412}
 413
 414/* Set format */
 415static int vidioc_s_fmt(struct file *file, void *priv, struct v4l2_format *f)
 416{
 417        struct s5p_mfc_dev *dev = video_drvdata(file);
 418        struct s5p_mfc_ctx *ctx = fh_to_ctx(priv);
 419        int ret = 0;
 420        struct v4l2_pix_format_mplane *pix_mp;
 421
 422        mfc_debug_enter();
 423        ret = vidioc_try_fmt(file, priv, f);
 424        pix_mp = &f->fmt.pix_mp;
 425        if (ret)
 426                return ret;
 427        if (ctx->vq_src.streaming || ctx->vq_dst.streaming) {
 428                v4l2_err(&dev->v4l2_dev, "%s queue busy\n", __func__);
 429                ret = -EBUSY;
 430                goto out;
 431        }
 432        if (f->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) {
 433                /* dst_fmt is validated by call to vidioc_try_fmt */
 434                ctx->dst_fmt = find_format(f, MFC_FMT_RAW);
 435                ret = 0;
 436                goto out;
 437        } else if (f->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) {
 438                /* src_fmt is validated by call to vidioc_try_fmt */
 439                ctx->src_fmt = find_format(f, MFC_FMT_DEC);
 440                ctx->codec_mode = ctx->src_fmt->codec_mode;
 441                mfc_debug(2, "The codec number is: %d\n", ctx->codec_mode);
 442                pix_mp->height = 0;
 443                pix_mp->width = 0;
 444                if (pix_mp->plane_fmt[0].sizeimage)
 445                        ctx->dec_src_buf_size = pix_mp->plane_fmt[0].sizeimage;
 446                else
 447                        pix_mp->plane_fmt[0].sizeimage = ctx->dec_src_buf_size =
 448                                                                DEF_CPB_SIZE;
 449                pix_mp->plane_fmt[0].bytesperline = 0;
 450                ctx->state = MFCINST_INIT;
 451                ret = 0;
 452                goto out;
 453        } else {
 454                mfc_err("Wrong type error for S_FMT : %d", f->type);
 455                ret = -EINVAL;
 456                goto out;
 457        }
 458
 459out:
 460        mfc_debug_leave();
 461        return ret;
 462}
 463
 464/* Reqeust buffers */
 465static int vidioc_reqbufs(struct file *file, void *priv,
 466                                          struct v4l2_requestbuffers *reqbufs)
 467{
 468        struct s5p_mfc_dev *dev = video_drvdata(file);
 469        struct s5p_mfc_ctx *ctx = fh_to_ctx(priv);
 470        int ret = 0;
 471
 472        if (reqbufs->memory != V4L2_MEMORY_MMAP) {
 473                mfc_err("Only V4L2_MEMORY_MAP is supported\n");
 474                return -EINVAL;
 475        }
 476        if (reqbufs->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) {
 477                /* Can only request buffers after an instance has been opened.*/
 478                if (ctx->state == MFCINST_INIT) {
 479                        ctx->src_bufs_cnt = 0;
 480                        if (reqbufs->count == 0) {
 481                                mfc_debug(2, "Freeing buffers\n");
 482                                s5p_mfc_clock_on();
 483                                ret = vb2_reqbufs(&ctx->vq_src, reqbufs);
 484                                s5p_mfc_clock_off();
 485                                return ret;
 486                        }
 487                        /* Decoding */
 488                        if (ctx->output_state != QUEUE_FREE) {
 489                                mfc_err("Bufs have already been requested\n");
 490                                return -EINVAL;
 491                        }
 492                        s5p_mfc_clock_on();
 493                        ret = vb2_reqbufs(&ctx->vq_src, reqbufs);
 494                        s5p_mfc_clock_off();
 495                        if (ret) {
 496                                mfc_err("vb2_reqbufs on output failed\n");
 497                                return ret;
 498                        }
 499                        mfc_debug(2, "vb2_reqbufs: %d\n", ret);
 500                        ctx->output_state = QUEUE_BUFS_REQUESTED;
 501                }
 502        } else if (reqbufs->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) {
 503                ctx->dst_bufs_cnt = 0;
 504                if (reqbufs->count == 0) {
 505                        mfc_debug(2, "Freeing buffers\n");
 506                        s5p_mfc_clock_on();
 507                        ret = vb2_reqbufs(&ctx->vq_dst, reqbufs);
 508                        s5p_mfc_clock_off();
 509                        return ret;
 510                }
 511                if (ctx->capture_state != QUEUE_FREE) {
 512                        mfc_err("Bufs have already been requested\n");
 513                        return -EINVAL;
 514                }
 515                ctx->capture_state = QUEUE_BUFS_REQUESTED;
 516                s5p_mfc_clock_on();
 517                ret = vb2_reqbufs(&ctx->vq_dst, reqbufs);
 518                s5p_mfc_clock_off();
 519                if (ret) {
 520                        mfc_err("vb2_reqbufs on capture failed\n");
 521                        return ret;
 522                }
 523                if (reqbufs->count < ctx->pb_count) {
 524                        mfc_err("Not enough buffers allocated\n");
 525                        reqbufs->count = 0;
 526                        s5p_mfc_clock_on();
 527                        ret = vb2_reqbufs(&ctx->vq_dst, reqbufs);
 528                        s5p_mfc_clock_off();
 529                        return -ENOMEM;
 530                }
 531                ctx->total_dpb_count = reqbufs->count;
 532                ret = s5p_mfc_hw_call(dev->mfc_ops, alloc_codec_buffers, ctx);
 533                if (ret) {
 534                        mfc_err("Failed to allocate decoding buffers\n");
 535                        reqbufs->count = 0;
 536                        s5p_mfc_clock_on();
 537                        ret = vb2_reqbufs(&ctx->vq_dst, reqbufs);
 538                        s5p_mfc_clock_off();
 539                        return -ENOMEM;
 540                }
 541                if (ctx->dst_bufs_cnt == ctx->total_dpb_count) {
 542                        ctx->capture_state = QUEUE_BUFS_MMAPED;
 543                } else {
 544                        mfc_err("Not all buffers passed to buf_init\n");
 545                        reqbufs->count = 0;
 546                        s5p_mfc_clock_on();
 547                        ret = vb2_reqbufs(&ctx->vq_dst, reqbufs);
 548                        s5p_mfc_hw_call(dev->mfc_ops, release_codec_buffers,
 549                                        ctx);
 550                        s5p_mfc_clock_off();
 551                        return -ENOMEM;
 552                }
 553                if (s5p_mfc_ctx_ready(ctx))
 554                        set_work_bit_irqsave(ctx);
 555                s5p_mfc_hw_call(dev->mfc_ops, try_run, dev);
 556                s5p_mfc_wait_for_done_ctx(ctx,
 557                                        S5P_MFC_R2H_CMD_INIT_BUFFERS_RET, 0);
 558        }
 559        return ret;
 560}
 561
 562/* Query buffer */
 563static int vidioc_querybuf(struct file *file, void *priv,
 564                                                   struct v4l2_buffer *buf)
 565{
 566        struct s5p_mfc_ctx *ctx = fh_to_ctx(priv);
 567        int ret;
 568        int i;
 569
 570        if (buf->memory != V4L2_MEMORY_MMAP) {
 571                mfc_err("Only mmaped buffers can be used\n");
 572                return -EINVAL;
 573        }
 574        mfc_debug(2, "State: %d, buf->type: %d\n", ctx->state, buf->type);
 575        if (ctx->state == MFCINST_INIT &&
 576                        buf->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) {
 577                ret = vb2_querybuf(&ctx->vq_src, buf);
 578        } else if (ctx->state == MFCINST_RUNNING &&
 579                        buf->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) {
 580                ret = vb2_querybuf(&ctx->vq_dst, buf);
 581                for (i = 0; i < buf->length; i++)
 582                        buf->m.planes[i].m.mem_offset += DST_QUEUE_OFF_BASE;
 583        } else {
 584                mfc_err("vidioc_querybuf called in an inappropriate state\n");
 585                ret = -EINVAL;
 586        }
 587        mfc_debug_leave();
 588        return ret;
 589}
 590
 591/* Queue a buffer */
 592static int vidioc_qbuf(struct file *file, void *priv, struct v4l2_buffer *buf)
 593{
 594        struct s5p_mfc_ctx *ctx = fh_to_ctx(priv);
 595
 596        if (ctx->state == MFCINST_ERROR) {
 597                mfc_err("Call on QBUF after unrecoverable error\n");
 598                return -EIO;
 599        }
 600        if (buf->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE)
 601                return vb2_qbuf(&ctx->vq_src, buf);
 602        else if (buf->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE)
 603                return vb2_qbuf(&ctx->vq_dst, buf);
 604        return -EINVAL;
 605}
 606
 607/* Dequeue a buffer */
 608static int vidioc_dqbuf(struct file *file, void *priv, struct v4l2_buffer *buf)
 609{
 610        const struct v4l2_event ev = {
 611                .type = V4L2_EVENT_EOS
 612        };
 613        struct s5p_mfc_ctx *ctx = fh_to_ctx(priv);
 614        int ret;
 615
 616        if (ctx->state == MFCINST_ERROR) {
 617                mfc_err("Call on DQBUF after unrecoverable error\n");
 618                return -EIO;
 619        }
 620        if (buf->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE)
 621                ret = vb2_dqbuf(&ctx->vq_src, buf, file->f_flags & O_NONBLOCK);
 622        else if (buf->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) {
 623                ret = vb2_dqbuf(&ctx->vq_dst, buf, file->f_flags & O_NONBLOCK);
 624                if (ret == 0 && ctx->state == MFCINST_FINISHED &&
 625                                list_empty(&ctx->vq_dst.done_list))
 626                        v4l2_event_queue_fh(&ctx->fh, &ev);
 627        } else {
 628                ret = -EINVAL;
 629        }
 630        return ret;
 631}
 632
 633/* Export DMA buffer */
 634static int vidioc_expbuf(struct file *file, void *priv,
 635        struct v4l2_exportbuffer *eb)
 636{
 637        struct s5p_mfc_ctx *ctx = fh_to_ctx(priv);
 638
 639        if (eb->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE)
 640                return vb2_expbuf(&ctx->vq_src, eb);
 641        if (eb->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE)
 642                return vb2_expbuf(&ctx->vq_dst, eb);
 643        return -EINVAL;
 644}
 645
 646/* Stream on */
 647static int vidioc_streamon(struct file *file, void *priv,
 648                           enum v4l2_buf_type type)
 649{
 650        struct s5p_mfc_ctx *ctx = fh_to_ctx(priv);
 651        struct s5p_mfc_dev *dev = ctx->dev;
 652        int ret = -EINVAL;
 653
 654        mfc_debug_enter();
 655        if (type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) {
 656
 657                if (ctx->state == MFCINST_INIT) {
 658                        ctx->dst_bufs_cnt = 0;
 659                        ctx->src_bufs_cnt = 0;
 660                        ctx->capture_state = QUEUE_FREE;
 661                        ctx->output_state = QUEUE_FREE;
 662                        s5p_mfc_hw_call(dev->mfc_ops, alloc_instance_buffer,
 663                                        ctx);
 664                        s5p_mfc_hw_call(dev->mfc_ops, alloc_dec_temp_buffers,
 665                                        ctx);
 666                        set_work_bit_irqsave(ctx);
 667                        s5p_mfc_clean_ctx_int_flags(ctx);
 668                        s5p_mfc_hw_call(dev->mfc_ops, try_run, dev);
 669
 670                        if (s5p_mfc_wait_for_done_ctx(ctx,
 671                                S5P_MFC_R2H_CMD_OPEN_INSTANCE_RET, 0)) {
 672                                /* Error or timeout */
 673                                mfc_err("Error getting instance from hardware\n");
 674                                s5p_mfc_hw_call(dev->mfc_ops,
 675                                                release_instance_buffer, ctx);
 676                                s5p_mfc_hw_call(dev->mfc_ops,
 677                                                release_dec_desc_buffer, ctx);
 678                                return -EIO;
 679                        }
 680                        mfc_debug(2, "Got instance number: %d\n", ctx->inst_no);
 681                }
 682                ret = vb2_streamon(&ctx->vq_src, type);
 683                }
 684        else if (type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE)
 685                ret = vb2_streamon(&ctx->vq_dst, type);
 686        mfc_debug_leave();
 687        return ret;
 688}
 689
 690/* Stream off, which equals to a pause */
 691static int vidioc_streamoff(struct file *file, void *priv,
 692                            enum v4l2_buf_type type)
 693{
 694        struct s5p_mfc_ctx *ctx = fh_to_ctx(priv);
 695
 696        if (type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE)
 697                return vb2_streamoff(&ctx->vq_src, type);
 698        else if (type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE)
 699                return vb2_streamoff(&ctx->vq_dst, type);
 700        return -EINVAL;
 701}
 702
 703/* Set controls - v4l2 control framework */
 704static int s5p_mfc_dec_s_ctrl(struct v4l2_ctrl *ctrl)
 705{
 706        struct s5p_mfc_ctx *ctx = ctrl_to_ctx(ctrl);
 707
 708        switch (ctrl->id) {
 709        case V4L2_CID_MPEG_MFC51_VIDEO_DECODER_H264_DISPLAY_DELAY:
 710                ctx->display_delay = ctrl->val;
 711                break;
 712        case V4L2_CID_MPEG_MFC51_VIDEO_DECODER_H264_DISPLAY_DELAY_ENABLE:
 713                ctx->display_delay_enable = ctrl->val;
 714                break;
 715        case V4L2_CID_MPEG_VIDEO_DECODER_MPEG4_DEBLOCK_FILTER:
 716                ctx->loop_filter_mpeg4 = ctrl->val;
 717                break;
 718        case V4L2_CID_MPEG_VIDEO_DECODER_SLICE_INTERFACE:
 719                ctx->slice_interface = ctrl->val;
 720                break;
 721        default:
 722                mfc_err("Invalid control 0x%08x\n", ctrl->id);
 723                return -EINVAL;
 724        }
 725        return 0;
 726}
 727
 728static int s5p_mfc_dec_g_v_ctrl(struct v4l2_ctrl *ctrl)
 729{
 730        struct s5p_mfc_ctx *ctx = ctrl_to_ctx(ctrl);
 731        struct s5p_mfc_dev *dev = ctx->dev;
 732
 733        switch (ctrl->id) {
 734        case V4L2_CID_MIN_BUFFERS_FOR_CAPTURE:
 735                if (ctx->state >= MFCINST_HEAD_PARSED &&
 736                    ctx->state < MFCINST_ABORT) {
 737                        ctrl->val = ctx->pb_count;
 738                        break;
 739                } else if (ctx->state != MFCINST_INIT) {
 740                        v4l2_err(&dev->v4l2_dev, "Decoding not initialised\n");
 741                        return -EINVAL;
 742                }
 743                /* Should wait for the header to be parsed */
 744                s5p_mfc_clean_ctx_int_flags(ctx);
 745                s5p_mfc_wait_for_done_ctx(ctx,
 746                                S5P_MFC_R2H_CMD_SEQ_DONE_RET, 0);
 747                if (ctx->state >= MFCINST_HEAD_PARSED &&
 748                    ctx->state < MFCINST_ABORT) {
 749                        ctrl->val = ctx->pb_count;
 750                } else {
 751                        v4l2_err(&dev->v4l2_dev, "Decoding not initialised\n");
 752                        return -EINVAL;
 753                }
 754                break;
 755        }
 756        return 0;
 757}
 758
 759
 760static const struct v4l2_ctrl_ops s5p_mfc_dec_ctrl_ops = {
 761        .s_ctrl = s5p_mfc_dec_s_ctrl,
 762        .g_volatile_ctrl = s5p_mfc_dec_g_v_ctrl,
 763};
 764
 765/* Get cropping information */
 766static int vidioc_g_crop(struct file *file, void *priv,
 767                struct v4l2_crop *cr)
 768{
 769        struct s5p_mfc_ctx *ctx = fh_to_ctx(priv);
 770        struct s5p_mfc_dev *dev = ctx->dev;
 771        u32 left, right, top, bottom;
 772
 773        if (ctx->state != MFCINST_HEAD_PARSED &&
 774        ctx->state != MFCINST_RUNNING && ctx->state != MFCINST_FINISHING
 775                                        && ctx->state != MFCINST_FINISHED) {
 776                        mfc_err("Cannont set crop\n");
 777                        return -EINVAL;
 778                }
 779        if (ctx->src_fmt->fourcc == V4L2_PIX_FMT_H264) {
 780                left = s5p_mfc_hw_call(dev->mfc_ops, get_crop_info_h, ctx);
 781                right = left >> S5P_FIMV_SHARED_CROP_RIGHT_SHIFT;
 782                left = left & S5P_FIMV_SHARED_CROP_LEFT_MASK;
 783                top = s5p_mfc_hw_call(dev->mfc_ops, get_crop_info_v, ctx);
 784                bottom = top >> S5P_FIMV_SHARED_CROP_BOTTOM_SHIFT;
 785                top = top & S5P_FIMV_SHARED_CROP_TOP_MASK;
 786                cr->c.left = left;
 787                cr->c.top = top;
 788                cr->c.width = ctx->img_width - left - right;
 789                cr->c.height = ctx->img_height - top - bottom;
 790                mfc_debug(2, "Cropping info [h264]: l=%d t=%d "
 791                        "w=%d h=%d (r=%d b=%d fw=%d fh=%d\n", left, top,
 792                        cr->c.width, cr->c.height, right, bottom,
 793                        ctx->buf_width, ctx->buf_height);
 794        } else {
 795                cr->c.left = 0;
 796                cr->c.top = 0;
 797                cr->c.width = ctx->img_width;
 798                cr->c.height = ctx->img_height;
 799                mfc_debug(2, "Cropping info: w=%d h=%d fw=%d "
 800                        "fh=%d\n", cr->c.width, cr->c.height, ctx->buf_width,
 801                                                        ctx->buf_height);
 802        }
 803        return 0;
 804}
 805
 806int vidioc_decoder_cmd(struct file *file, void *priv,
 807                                                struct v4l2_decoder_cmd *cmd)
 808{
 809        struct s5p_mfc_ctx *ctx = fh_to_ctx(priv);
 810        struct s5p_mfc_dev *dev = ctx->dev;
 811        struct s5p_mfc_buf *buf;
 812        unsigned long flags;
 813
 814        switch (cmd->cmd) {
 815        case V4L2_ENC_CMD_STOP:
 816                if (cmd->flags != 0)
 817                        return -EINVAL;
 818
 819                if (!ctx->vq_src.streaming)
 820                        return -EINVAL;
 821
 822                spin_lock_irqsave(&dev->irqlock, flags);
 823                if (list_empty(&ctx->src_queue)) {
 824                        mfc_err("EOS: empty src queue, entering finishing state");
 825                        ctx->state = MFCINST_FINISHING;
 826                        if (s5p_mfc_ctx_ready(ctx))
 827                                set_work_bit_irqsave(ctx);
 828                        spin_unlock_irqrestore(&dev->irqlock, flags);
 829                        s5p_mfc_hw_call(dev->mfc_ops, try_run, dev);
 830                } else {
 831                        mfc_err("EOS: marking last buffer of stream");
 832                        buf = list_entry(ctx->src_queue.prev,
 833                                                struct s5p_mfc_buf, list);
 834                        if (buf->flags & MFC_BUF_FLAG_USED)
 835                                ctx->state = MFCINST_FINISHING;
 836                        else
 837                                buf->flags |= MFC_BUF_FLAG_EOS;
 838                        spin_unlock_irqrestore(&dev->irqlock, flags);
 839                }
 840                break;
 841        default:
 842                return -EINVAL;
 843        }
 844        return 0;
 845}
 846
 847static int vidioc_subscribe_event(struct v4l2_fh *fh,
 848                                const struct  v4l2_event_subscription *sub)
 849{
 850        switch (sub->type) {
 851        case V4L2_EVENT_EOS:
 852                return v4l2_event_subscribe(fh, sub, 2, NULL);
 853        default:
 854                return -EINVAL;
 855        }
 856}
 857
 858
 859/* v4l2_ioctl_ops */
 860static const struct v4l2_ioctl_ops s5p_mfc_dec_ioctl_ops = {
 861        .vidioc_querycap = vidioc_querycap,
 862        .vidioc_enum_fmt_vid_cap = vidioc_enum_fmt_vid_cap,
 863        .vidioc_enum_fmt_vid_cap_mplane = vidioc_enum_fmt_vid_cap_mplane,
 864        .vidioc_enum_fmt_vid_out = vidioc_enum_fmt_vid_out,
 865        .vidioc_enum_fmt_vid_out_mplane = vidioc_enum_fmt_vid_out_mplane,
 866        .vidioc_g_fmt_vid_cap_mplane = vidioc_g_fmt,
 867        .vidioc_g_fmt_vid_out_mplane = vidioc_g_fmt,
 868        .vidioc_try_fmt_vid_cap_mplane = vidioc_try_fmt,
 869        .vidioc_try_fmt_vid_out_mplane = vidioc_try_fmt,
 870        .vidioc_s_fmt_vid_cap_mplane = vidioc_s_fmt,
 871        .vidioc_s_fmt_vid_out_mplane = vidioc_s_fmt,
 872        .vidioc_reqbufs = vidioc_reqbufs,
 873        .vidioc_querybuf = vidioc_querybuf,
 874        .vidioc_qbuf = vidioc_qbuf,
 875        .vidioc_dqbuf = vidioc_dqbuf,
 876        .vidioc_expbuf = vidioc_expbuf,
 877        .vidioc_streamon = vidioc_streamon,
 878        .vidioc_streamoff = vidioc_streamoff,
 879        .vidioc_g_crop = vidioc_g_crop,
 880        .vidioc_decoder_cmd = vidioc_decoder_cmd,
 881        .vidioc_subscribe_event = vidioc_subscribe_event,
 882        .vidioc_unsubscribe_event = v4l2_event_unsubscribe,
 883};
 884
 885static int s5p_mfc_queue_setup(struct vb2_queue *vq,
 886                        const struct v4l2_format *fmt, unsigned int *buf_count,
 887                        unsigned int *plane_count, unsigned int psize[],
 888                        void *allocators[])
 889{
 890        struct s5p_mfc_ctx *ctx = fh_to_ctx(vq->drv_priv);
 891        struct s5p_mfc_dev *dev = ctx->dev;
 892
 893        /* Video output for decoding (source)
 894         * this can be set after getting an instance */
 895        if (ctx->state == MFCINST_INIT &&
 896            vq->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) {
 897                /* A single plane is required for input */
 898                *plane_count = 1;
 899                if (*buf_count < 1)
 900                        *buf_count = 1;
 901                if (*buf_count > MFC_MAX_BUFFERS)
 902                        *buf_count = MFC_MAX_BUFFERS;
 903        /* Video capture for decoding (destination)
 904         * this can be set after the header was parsed */
 905        } else if (ctx->state == MFCINST_HEAD_PARSED &&
 906                   vq->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) {
 907                /* Output plane count is 2 - one for Y and one for CbCr */
 908                *plane_count = 2;
 909                /* Setup buffer count */
 910                if (*buf_count < ctx->pb_count)
 911                        *buf_count = ctx->pb_count;
 912                if (*buf_count > ctx->pb_count + MFC_MAX_EXTRA_DPB)
 913                        *buf_count = ctx->pb_count + MFC_MAX_EXTRA_DPB;
 914                if (*buf_count > MFC_MAX_BUFFERS)
 915                        *buf_count = MFC_MAX_BUFFERS;
 916        } else {
 917                mfc_err("State seems invalid. State = %d, vq->type = %d\n",
 918                                                        ctx->state, vq->type);
 919                return -EINVAL;
 920        }
 921        mfc_debug(2, "Buffer count=%d, plane count=%d\n",
 922                                                *buf_count, *plane_count);
 923        if (ctx->state == MFCINST_HEAD_PARSED &&
 924            vq->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) {
 925                psize[0] = ctx->luma_size;
 926                psize[1] = ctx->chroma_size;
 927
 928                if (IS_MFCV6(dev))
 929                        allocators[0] =
 930                                ctx->dev->alloc_ctx[MFC_BANK1_ALLOC_CTX];
 931                else
 932                        allocators[0] =
 933                                ctx->dev->alloc_ctx[MFC_BANK2_ALLOC_CTX];
 934                allocators[1] = ctx->dev->alloc_ctx[MFC_BANK1_ALLOC_CTX];
 935        } else if (vq->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE &&
 936                   ctx->state == MFCINST_INIT) {
 937                psize[0] = ctx->dec_src_buf_size;
 938                allocators[0] = ctx->dev->alloc_ctx[MFC_BANK1_ALLOC_CTX];
 939        } else {
 940                mfc_err("This video node is dedicated to decoding. Decoding not initialized\n");
 941                return -EINVAL;
 942        }
 943        return 0;
 944}
 945
 946static void s5p_mfc_unlock(struct vb2_queue *q)
 947{
 948        struct s5p_mfc_ctx *ctx = fh_to_ctx(q->drv_priv);
 949        struct s5p_mfc_dev *dev = ctx->dev;
 950
 951        mutex_unlock(&dev->mfc_mutex);
 952}
 953
 954static void s5p_mfc_lock(struct vb2_queue *q)
 955{
 956        struct s5p_mfc_ctx *ctx = fh_to_ctx(q->drv_priv);
 957        struct s5p_mfc_dev *dev = ctx->dev;
 958
 959        mutex_lock(&dev->mfc_mutex);
 960}
 961
 962static int s5p_mfc_buf_init(struct vb2_buffer *vb)
 963{
 964        struct vb2_queue *vq = vb->vb2_queue;
 965        struct s5p_mfc_ctx *ctx = fh_to_ctx(vq->drv_priv);
 966        unsigned int i;
 967
 968        if (vq->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) {
 969                if (ctx->capture_state == QUEUE_BUFS_MMAPED)
 970                        return 0;
 971                for (i = 0; i <= ctx->src_fmt->num_planes ; i++) {
 972                        if (IS_ERR_OR_NULL(ERR_PTR(
 973                                        vb2_dma_contig_plane_dma_addr(vb, i)))) {
 974                                mfc_err("Plane mem not allocated\n");
 975                                return -EINVAL;
 976                        }
 977                }
 978                if (vb2_plane_size(vb, 0) < ctx->luma_size ||
 979                        vb2_plane_size(vb, 1) < ctx->chroma_size) {
 980                        mfc_err("Plane buffer (CAPTURE) is too small\n");
 981                        return -EINVAL;
 982                }
 983                i = vb->v4l2_buf.index;
 984                ctx->dst_bufs[i].b = vb;
 985                ctx->dst_bufs[i].cookie.raw.luma =
 986                                        vb2_dma_contig_plane_dma_addr(vb, 0);
 987                ctx->dst_bufs[i].cookie.raw.chroma =
 988                                        vb2_dma_contig_plane_dma_addr(vb, 1);
 989                ctx->dst_bufs_cnt++;
 990        } else if (vq->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) {
 991                if (IS_ERR_OR_NULL(ERR_PTR(
 992                                        vb2_dma_contig_plane_dma_addr(vb, 0)))) {
 993                        mfc_err("Plane memory not allocated\n");
 994                        return -EINVAL;
 995                }
 996                if (vb2_plane_size(vb, 0) < ctx->dec_src_buf_size) {
 997                        mfc_err("Plane buffer (OUTPUT) is too small\n");
 998                        return -EINVAL;
 999                }
1000
1001                i = vb->v4l2_buf.index;
1002                ctx->src_bufs[i].b = vb;
1003                ctx->src_bufs[i].cookie.stream =
1004                                        vb2_dma_contig_plane_dma_addr(vb, 0);
1005                ctx->src_bufs_cnt++;
1006        } else {
1007                mfc_err("s5p_mfc_buf_init: unknown queue type\n");
1008                return -EINVAL;
1009        }
1010        return 0;
1011}
1012
1013static int s5p_mfc_start_streaming(struct vb2_queue *q, unsigned int count)
1014{
1015        struct s5p_mfc_ctx *ctx = fh_to_ctx(q->drv_priv);
1016        struct s5p_mfc_dev *dev = ctx->dev;
1017
1018        v4l2_ctrl_handler_setup(&ctx->ctrl_handler);
1019        if (ctx->state == MFCINST_FINISHING ||
1020                ctx->state == MFCINST_FINISHED)
1021                ctx->state = MFCINST_RUNNING;
1022        /* If context is ready then dev = work->data;schedule it to run */
1023        if (s5p_mfc_ctx_ready(ctx))
1024                set_work_bit_irqsave(ctx);
1025        s5p_mfc_hw_call(dev->mfc_ops, try_run, dev);
1026        return 0;
1027}
1028
1029static int s5p_mfc_stop_streaming(struct vb2_queue *q)
1030{
1031        unsigned long flags;
1032        struct s5p_mfc_ctx *ctx = fh_to_ctx(q->drv_priv);
1033        struct s5p_mfc_dev *dev = ctx->dev;
1034        int aborted = 0;
1035
1036        if ((ctx->state == MFCINST_FINISHING ||
1037                ctx->state ==  MFCINST_RUNNING) &&
1038                dev->curr_ctx == ctx->num && dev->hw_lock) {
1039                ctx->state = MFCINST_ABORT;
1040                s5p_mfc_wait_for_done_ctx(ctx,
1041                                        S5P_MFC_R2H_CMD_FRAME_DONE_RET, 0);
1042                aborted = 1;
1043        }
1044        if (q->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) {
1045                spin_lock_irqsave(&dev->irqlock, flags);
1046                s5p_mfc_hw_call(dev->mfc_ops, cleanup_queue, &ctx->dst_queue,
1047                                &ctx->vq_dst);
1048                INIT_LIST_HEAD(&ctx->dst_queue);
1049                ctx->dst_queue_cnt = 0;
1050                ctx->dpb_flush_flag = 1;
1051                ctx->dec_dst_flag = 0;
1052                spin_unlock_irqrestore(&dev->irqlock, flags);
1053                if (IS_MFCV6(dev) && (ctx->state == MFCINST_RUNNING)) {
1054                        ctx->state = MFCINST_FLUSH;
1055                        set_work_bit_irqsave(ctx);
1056                        s5p_mfc_clean_ctx_int_flags(ctx);
1057                        s5p_mfc_hw_call(dev->mfc_ops, try_run, dev);
1058                        if (s5p_mfc_wait_for_done_ctx(ctx,
1059                                S5P_MFC_R2H_CMD_DPB_FLUSH_RET, 0))
1060                                mfc_err("Err flushing buffers\n");
1061                }
1062        }
1063        if (q->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) {
1064                spin_lock_irqsave(&dev->irqlock, flags);
1065                s5p_mfc_hw_call(dev->mfc_ops, cleanup_queue, &ctx->src_queue,
1066                                &ctx->vq_src);
1067                INIT_LIST_HEAD(&ctx->src_queue);
1068                ctx->src_queue_cnt = 0;
1069                spin_unlock_irqrestore(&dev->irqlock, flags);
1070        }
1071        if (aborted)
1072                ctx->state = MFCINST_RUNNING;
1073        return 0;
1074}
1075
1076
1077static void s5p_mfc_buf_queue(struct vb2_buffer *vb)
1078{
1079        struct vb2_queue *vq = vb->vb2_queue;
1080        struct s5p_mfc_ctx *ctx = fh_to_ctx(vq->drv_priv);
1081        struct s5p_mfc_dev *dev = ctx->dev;
1082        unsigned long flags;
1083        struct s5p_mfc_buf *mfc_buf;
1084
1085        if (vq->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) {
1086                mfc_buf = &ctx->src_bufs[vb->v4l2_buf.index];
1087                mfc_buf->flags &= ~MFC_BUF_FLAG_USED;
1088                spin_lock_irqsave(&dev->irqlock, flags);
1089                list_add_tail(&mfc_buf->list, &ctx->src_queue);
1090                ctx->src_queue_cnt++;
1091                spin_unlock_irqrestore(&dev->irqlock, flags);
1092        } else if (vq->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) {
1093                mfc_buf = &ctx->dst_bufs[vb->v4l2_buf.index];
1094                mfc_buf->flags &= ~MFC_BUF_FLAG_USED;
1095                /* Mark destination as available for use by MFC */
1096                spin_lock_irqsave(&dev->irqlock, flags);
1097                set_bit(vb->v4l2_buf.index, &ctx->dec_dst_flag);
1098                list_add_tail(&mfc_buf->list, &ctx->dst_queue);
1099                ctx->dst_queue_cnt++;
1100                spin_unlock_irqrestore(&dev->irqlock, flags);
1101        } else {
1102                mfc_err("Unsupported buffer type (%d)\n", vq->type);
1103        }
1104        if (s5p_mfc_ctx_ready(ctx))
1105                set_work_bit_irqsave(ctx);
1106        s5p_mfc_hw_call(dev->mfc_ops, try_run, dev);
1107}
1108
1109static struct vb2_ops s5p_mfc_dec_qops = {
1110        .queue_setup            = s5p_mfc_queue_setup,
1111        .wait_prepare           = s5p_mfc_unlock,
1112        .wait_finish            = s5p_mfc_lock,
1113        .buf_init               = s5p_mfc_buf_init,
1114        .start_streaming        = s5p_mfc_start_streaming,
1115        .stop_streaming         = s5p_mfc_stop_streaming,
1116        .buf_queue              = s5p_mfc_buf_queue,
1117};
1118
1119struct s5p_mfc_codec_ops *get_dec_codec_ops(void)
1120{
1121        return &decoder_codec_ops;
1122}
1123
1124struct vb2_ops *get_dec_queue_ops(void)
1125{
1126        return &s5p_mfc_dec_qops;
1127}
1128
1129const struct v4l2_ioctl_ops *get_dec_v4l2_ioctl_ops(void)
1130{
1131        return &s5p_mfc_dec_ioctl_ops;
1132}
1133
1134#define IS_MFC51_PRIV(x) ((V4L2_CTRL_ID2CLASS(x) == V4L2_CTRL_CLASS_MPEG) \
1135                                                && V4L2_CTRL_DRIVER_PRIV(x))
1136
1137int s5p_mfc_dec_ctrls_setup(struct s5p_mfc_ctx *ctx)
1138{
1139        struct v4l2_ctrl_config cfg;
1140        int i;
1141
1142        v4l2_ctrl_handler_init(&ctx->ctrl_handler, NUM_CTRLS);
1143        if (ctx->ctrl_handler.error) {
1144                mfc_err("v4l2_ctrl_handler_init failed\n");
1145                return ctx->ctrl_handler.error;
1146        }
1147
1148        for (i = 0; i < NUM_CTRLS; i++) {
1149                if (IS_MFC51_PRIV(controls[i].id)) {
1150                        memset(&cfg, 0, sizeof(struct v4l2_ctrl_config));
1151                        cfg.ops = &s5p_mfc_dec_ctrl_ops;
1152                        cfg.id = controls[i].id;
1153                        cfg.min = controls[i].minimum;
1154                        cfg.max = controls[i].maximum;
1155                        cfg.def = controls[i].default_value;
1156                        cfg.name = controls[i].name;
1157                        cfg.type = controls[i].type;
1158
1159                        cfg.step = controls[i].step;
1160                        cfg.menu_skip_mask = 0;
1161
1162                        ctx->ctrls[i] = v4l2_ctrl_new_custom(&ctx->ctrl_handler,
1163                                        &cfg, NULL);
1164                } else {
1165                        ctx->ctrls[i] = v4l2_ctrl_new_std(&ctx->ctrl_handler,
1166                                        &s5p_mfc_dec_ctrl_ops,
1167                                        controls[i].id, controls[i].minimum,
1168                                        controls[i].maximum, controls[i].step,
1169                                        controls[i].default_value);
1170                }
1171                if (ctx->ctrl_handler.error) {
1172                        mfc_err("Adding control (%d) failed\n", i);
1173                        return ctx->ctrl_handler.error;
1174                }
1175                if (controls[i].is_volatile && ctx->ctrls[i])
1176                        ctx->ctrls[i]->flags |= V4L2_CTRL_FLAG_VOLATILE;
1177        }
1178        return 0;
1179}
1180
1181void s5p_mfc_dec_ctrls_delete(struct s5p_mfc_ctx *ctx)
1182{
1183        int i;
1184
1185        v4l2_ctrl_handler_free(&ctx->ctrl_handler);
1186        for (i = 0; i < NUM_CTRLS; i++)
1187                ctx->ctrls[i] = NULL;
1188}
1189
1190void s5p_mfc_dec_init(struct s5p_mfc_ctx *ctx)
1191{
1192        struct v4l2_format f;
1193        f.fmt.pix_mp.pixelformat = DEF_SRC_FMT_DEC;
1194        ctx->src_fmt = find_format(&f, MFC_FMT_DEC);
1195        f.fmt.pix_mp.pixelformat = DEF_DST_FMT_DEC;
1196        ctx->dst_fmt = find_format(&f, MFC_FMT_RAW);
1197        mfc_debug(2, "Default src_fmt is %x, dest_fmt is %x\n",
1198                        (unsigned int)ctx->src_fmt, (unsigned int)ctx->dst_fmt);
1199}
1200
1201