root/drivers/media/platform/s5p-mfc/s5p_mfc_dec.c

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DEFINITIONS

This source file includes following definitions.
  1. find_format
  2. s5p_mfc_ctx_ready
  3. vidioc_querycap
  4. vidioc_enum_fmt
  5. vidioc_enum_fmt_vid_cap
  6. vidioc_enum_fmt_vid_out
  7. vidioc_g_fmt
  8. vidioc_try_fmt
  9. vidioc_s_fmt
  10. reqbufs_output
  11. reqbufs_capture
  12. vidioc_reqbufs
  13. vidioc_querybuf
  14. vidioc_qbuf
  15. vidioc_dqbuf
  16. vidioc_expbuf
  17. vidioc_streamon
  18. vidioc_streamoff
  19. s5p_mfc_dec_s_ctrl
  20. s5p_mfc_dec_g_v_ctrl
  21. vidioc_g_selection
  22. vidioc_decoder_cmd
  23. vidioc_subscribe_event
  24. s5p_mfc_queue_setup
  25. s5p_mfc_buf_init
  26. s5p_mfc_start_streaming
  27. s5p_mfc_stop_streaming
  28. s5p_mfc_buf_queue
  29. get_dec_codec_ops
  30. get_dec_queue_ops
  31. get_dec_v4l2_ioctl_ops
  32. s5p_mfc_dec_ctrls_setup
  33. s5p_mfc_dec_ctrls_delete
  34. s5p_mfc_dec_init

   1 // SPDX-License-Identifier: GPL-2.0-or-later
   2 /*
   3  * linux/drivers/media/platform/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         },
  66         {
  67                 .fourcc         = V4L2_PIX_FMT_H264_MVC,
  68                 .codec_mode     = S5P_MFC_CODEC_H264_MVC_DEC,
  69                 .type           = MFC_FMT_DEC,
  70                 .num_planes     = 1,
  71                 .versions       = MFC_V6PLUS_BITS,
  72         },
  73         {
  74                 .fourcc         = V4L2_PIX_FMT_H263,
  75                 .codec_mode     = S5P_MFC_CODEC_H263_DEC,
  76                 .type           = MFC_FMT_DEC,
  77                 .num_planes     = 1,
  78                 .versions       = MFC_V5PLUS_BITS,
  79         },
  80         {
  81                 .fourcc         = V4L2_PIX_FMT_MPEG1,
  82                 .codec_mode     = S5P_MFC_CODEC_MPEG2_DEC,
  83                 .type           = MFC_FMT_DEC,
  84                 .num_planes     = 1,
  85                 .versions       = MFC_V5PLUS_BITS,
  86         },
  87         {
  88                 .fourcc         = V4L2_PIX_FMT_MPEG2,
  89                 .codec_mode     = S5P_MFC_CODEC_MPEG2_DEC,
  90                 .type           = MFC_FMT_DEC,
  91                 .num_planes     = 1,
  92                 .versions       = MFC_V5PLUS_BITS,
  93         },
  94         {
  95                 .fourcc         = V4L2_PIX_FMT_MPEG4,
  96                 .codec_mode     = S5P_MFC_CODEC_MPEG4_DEC,
  97                 .type           = MFC_FMT_DEC,
  98                 .num_planes     = 1,
  99                 .versions       = MFC_V5PLUS_BITS,
 100         },
 101         {
 102                 .fourcc         = V4L2_PIX_FMT_XVID,
 103                 .codec_mode     = S5P_MFC_CODEC_MPEG4_DEC,
 104                 .type           = MFC_FMT_DEC,
 105                 .num_planes     = 1,
 106                 .versions       = MFC_V5PLUS_BITS,
 107         },
 108         {
 109                 .fourcc         = V4L2_PIX_FMT_VC1_ANNEX_G,
 110                 .codec_mode     = S5P_MFC_CODEC_VC1_DEC,
 111                 .type           = MFC_FMT_DEC,
 112                 .num_planes     = 1,
 113                 .versions       = MFC_V5PLUS_BITS,
 114         },
 115         {
 116                 .fourcc         = V4L2_PIX_FMT_VC1_ANNEX_L,
 117                 .codec_mode     = S5P_MFC_CODEC_VC1RCV_DEC,
 118                 .type           = MFC_FMT_DEC,
 119                 .num_planes     = 1,
 120                 .versions       = MFC_V5PLUS_BITS,
 121         },
 122         {
 123                 .fourcc         = V4L2_PIX_FMT_VP8,
 124                 .codec_mode     = S5P_MFC_CODEC_VP8_DEC,
 125                 .type           = MFC_FMT_DEC,
 126                 .num_planes     = 1,
 127                 .versions       = MFC_V6PLUS_BITS,
 128         },
 129         {
 130                 .fourcc         = V4L2_PIX_FMT_HEVC,
 131                 .codec_mode     = S5P_FIMV_CODEC_HEVC_DEC,
 132                 .type           = MFC_FMT_DEC,
 133                 .num_planes     = 1,
 134                 .versions       = MFC_V10_BIT,
 135         },
 136         {
 137                 .fourcc         = V4L2_PIX_FMT_VP9,
 138                 .codec_mode     = S5P_FIMV_CODEC_VP9_DEC,
 139                 .type           = MFC_FMT_DEC,
 140                 .num_planes     = 1,
 141                 .versions       = MFC_V10_BIT,
 142         },
 143 };
 144 
 145 #define NUM_FORMATS ARRAY_SIZE(formats)
 146 
 147 /* Find selected format description */
 148 static struct s5p_mfc_fmt *find_format(struct v4l2_format *f, unsigned int t)
 149 {
 150         unsigned int i;
 151 
 152         for (i = 0; i < NUM_FORMATS; i++) {
 153                 if (formats[i].fourcc == f->fmt.pix_mp.pixelformat &&
 154                     formats[i].type == t)
 155                         return &formats[i];
 156         }
 157         return NULL;
 158 }
 159 
 160 static struct mfc_control controls[] = {
 161         {
 162                 .id = V4L2_CID_MPEG_MFC51_VIDEO_DECODER_H264_DISPLAY_DELAY,
 163                 .type = V4L2_CTRL_TYPE_INTEGER,
 164                 .name = "H264 Display Delay",
 165                 .minimum = 0,
 166                 .maximum = 16383,
 167                 .step = 1,
 168                 .default_value = 0,
 169         },
 170         {
 171                 .id = V4L2_CID_MPEG_MFC51_VIDEO_DECODER_H264_DISPLAY_DELAY_ENABLE,
 172                 .type = V4L2_CTRL_TYPE_BOOLEAN,
 173                 .name = "H264 Display Delay Enable",
 174                 .minimum = 0,
 175                 .maximum = 1,
 176                 .step = 1,
 177                 .default_value = 0,
 178         },
 179         {
 180                 .id = V4L2_CID_MPEG_VIDEO_DECODER_MPEG4_DEBLOCK_FILTER,
 181                 .type = V4L2_CTRL_TYPE_BOOLEAN,
 182                 .name = "Mpeg4 Loop Filter Enable",
 183                 .minimum = 0,
 184                 .maximum = 1,
 185                 .step = 1,
 186                 .default_value = 0,
 187         },
 188         {
 189                 .id = V4L2_CID_MPEG_VIDEO_DECODER_SLICE_INTERFACE,
 190                 .type = V4L2_CTRL_TYPE_BOOLEAN,
 191                 .name = "Slice Interface Enable",
 192                 .minimum = 0,
 193                 .maximum = 1,
 194                 .step = 1,
 195                 .default_value = 0,
 196         },
 197         {
 198                 .id = V4L2_CID_MIN_BUFFERS_FOR_CAPTURE,
 199                 .type = V4L2_CTRL_TYPE_INTEGER,
 200                 .name = "Minimum number of cap bufs",
 201                 .minimum = 1,
 202                 .maximum = 32,
 203                 .step = 1,
 204                 .default_value = 1,
 205                 .is_volatile = 1,
 206         },
 207 };
 208 
 209 #define NUM_CTRLS ARRAY_SIZE(controls)
 210 
 211 /* Check whether a context should be run on hardware */
 212 static int s5p_mfc_ctx_ready(struct s5p_mfc_ctx *ctx)
 213 {
 214         /* Context is to parse header */
 215         if (ctx->src_queue_cnt >= 1 && ctx->state == MFCINST_GOT_INST)
 216                 return 1;
 217         /* Context is to decode a frame */
 218         if (ctx->src_queue_cnt >= 1 &&
 219             ctx->state == MFCINST_RUNNING &&
 220             ctx->dst_queue_cnt >= ctx->pb_count)
 221                 return 1;
 222         /* Context is to return last frame */
 223         if (ctx->state == MFCINST_FINISHING &&
 224             ctx->dst_queue_cnt >= ctx->pb_count)
 225                 return 1;
 226         /* Context is to set buffers */
 227         if (ctx->src_queue_cnt >= 1 &&
 228             ctx->state == MFCINST_HEAD_PARSED &&
 229             ctx->capture_state == QUEUE_BUFS_MMAPED)
 230                 return 1;
 231         /* Resolution change */
 232         if ((ctx->state == MFCINST_RES_CHANGE_INIT ||
 233                 ctx->state == MFCINST_RES_CHANGE_FLUSH) &&
 234                 ctx->dst_queue_cnt >= ctx->pb_count)
 235                 return 1;
 236         if (ctx->state == MFCINST_RES_CHANGE_END &&
 237                 ctx->src_queue_cnt >= 1)
 238                 return 1;
 239         mfc_debug(2, "ctx is not ready\n");
 240         return 0;
 241 }
 242 
 243 static const struct s5p_mfc_codec_ops decoder_codec_ops = {
 244         .pre_seq_start          = NULL,
 245         .post_seq_start         = NULL,
 246         .pre_frame_start        = NULL,
 247         .post_frame_start       = NULL,
 248 };
 249 
 250 /* Query capabilities of the device */
 251 static int vidioc_querycap(struct file *file, void *priv,
 252                            struct v4l2_capability *cap)
 253 {
 254         struct s5p_mfc_dev *dev = video_drvdata(file);
 255 
 256         strscpy(cap->driver, S5P_MFC_NAME, sizeof(cap->driver));
 257         strscpy(cap->card, dev->vfd_dec->name, sizeof(cap->card));
 258         snprintf(cap->bus_info, sizeof(cap->bus_info), "platform:%s",
 259                  dev_name(&dev->plat_dev->dev));
 260         return 0;
 261 }
 262 
 263 /* Enumerate format */
 264 static int vidioc_enum_fmt(struct file *file, struct v4l2_fmtdesc *f,
 265                                                         bool out)
 266 {
 267         struct s5p_mfc_dev *dev = video_drvdata(file);
 268         int i, j = 0;
 269 
 270         for (i = 0; i < ARRAY_SIZE(formats); ++i) {
 271                 if (out && formats[i].type != MFC_FMT_DEC)
 272                         continue;
 273                 else if (!out && formats[i].type != MFC_FMT_RAW)
 274                         continue;
 275                 else if ((dev->variant->version_bit & formats[i].versions) == 0)
 276                         continue;
 277 
 278                 if (j == f->index)
 279                         break;
 280                 ++j;
 281         }
 282         if (i == ARRAY_SIZE(formats))
 283                 return -EINVAL;
 284         f->pixelformat = formats[i].fourcc;
 285         return 0;
 286 }
 287 
 288 static int vidioc_enum_fmt_vid_cap(struct file *file, void *pirv,
 289                                    struct v4l2_fmtdesc *f)
 290 {
 291         return vidioc_enum_fmt(file, f, false);
 292 }
 293 
 294 static int vidioc_enum_fmt_vid_out(struct file *file, void *priv,
 295                                    struct v4l2_fmtdesc *f)
 296 {
 297         return vidioc_enum_fmt(file, f, true);
 298 }
 299 
 300 /* Get format */
 301 static int vidioc_g_fmt(struct file *file, void *priv, struct v4l2_format *f)
 302 {
 303         struct s5p_mfc_ctx *ctx = fh_to_ctx(priv);
 304         struct v4l2_pix_format_mplane *pix_mp;
 305 
 306         mfc_debug_enter();
 307         pix_mp = &f->fmt.pix_mp;
 308         if (f->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE &&
 309             (ctx->state == MFCINST_GOT_INST || ctx->state ==
 310                                                 MFCINST_RES_CHANGE_END)) {
 311                 /* If the MFC is parsing the header,
 312                  * so wait until it is finished */
 313                 s5p_mfc_wait_for_done_ctx(ctx, S5P_MFC_R2H_CMD_SEQ_DONE_RET,
 314                                                                         0);
 315         }
 316         if (f->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE &&
 317             ctx->state >= MFCINST_HEAD_PARSED &&
 318             ctx->state < MFCINST_ABORT) {
 319                 /* This is run on CAPTURE (decode output) */
 320                 /* Width and height are set to the dimensions
 321                    of the movie, the buffer is bigger and
 322                    further processing stages should crop to this
 323                    rectangle. */
 324                 pix_mp->width = ctx->buf_width;
 325                 pix_mp->height = ctx->buf_height;
 326                 pix_mp->field = V4L2_FIELD_NONE;
 327                 pix_mp->num_planes = 2;
 328                 /* Set pixelformat to the format in which MFC
 329                    outputs the decoded frame */
 330                 pix_mp->pixelformat = ctx->dst_fmt->fourcc;
 331                 pix_mp->plane_fmt[0].bytesperline = ctx->buf_width;
 332                 pix_mp->plane_fmt[0].sizeimage = ctx->luma_size;
 333                 pix_mp->plane_fmt[1].bytesperline = ctx->buf_width;
 334                 pix_mp->plane_fmt[1].sizeimage = ctx->chroma_size;
 335         } else if (f->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) {
 336                 /* This is run on OUTPUT
 337                    The buffer contains compressed image
 338                    so width and height have no meaning */
 339                 pix_mp->width = 0;
 340                 pix_mp->height = 0;
 341                 pix_mp->field = V4L2_FIELD_NONE;
 342                 pix_mp->plane_fmt[0].bytesperline = ctx->dec_src_buf_size;
 343                 pix_mp->plane_fmt[0].sizeimage = ctx->dec_src_buf_size;
 344                 pix_mp->pixelformat = ctx->src_fmt->fourcc;
 345                 pix_mp->num_planes = ctx->src_fmt->num_planes;
 346         } else {
 347                 mfc_err("Format could not be read\n");
 348                 mfc_debug(2, "%s-- with error\n", __func__);
 349                 return -EINVAL;
 350         }
 351         mfc_debug_leave();
 352         return 0;
 353 }
 354 
 355 /* Try format */
 356 static int vidioc_try_fmt(struct file *file, void *priv, struct v4l2_format *f)
 357 {
 358         struct s5p_mfc_dev *dev = video_drvdata(file);
 359         struct s5p_mfc_fmt *fmt;
 360 
 361         mfc_debug(2, "Type is %d\n", f->type);
 362         if (f->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) {
 363                 fmt = find_format(f, MFC_FMT_DEC);
 364                 if (!fmt) {
 365                         mfc_err("Unsupported format for source.\n");
 366                         return -EINVAL;
 367                 }
 368                 if (fmt->codec_mode == S5P_FIMV_CODEC_NONE) {
 369                         mfc_err("Unknown codec\n");
 370                         return -EINVAL;
 371                 }
 372                 if ((dev->variant->version_bit & fmt->versions) == 0) {
 373                         mfc_err("Unsupported format by this MFC version.\n");
 374                         return -EINVAL;
 375                 }
 376         } else if (f->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) {
 377                 fmt = find_format(f, MFC_FMT_RAW);
 378                 if (!fmt) {
 379                         mfc_err("Unsupported format for destination.\n");
 380                         return -EINVAL;
 381                 }
 382                 if ((dev->variant->version_bit & fmt->versions) == 0) {
 383                         mfc_err("Unsupported format by this MFC version.\n");
 384                         return -EINVAL;
 385                 }
 386         }
 387 
 388         return 0;
 389 }
 390 
 391 /* Set format */
 392 static int vidioc_s_fmt(struct file *file, void *priv, struct v4l2_format *f)
 393 {
 394         struct s5p_mfc_dev *dev = video_drvdata(file);
 395         struct s5p_mfc_ctx *ctx = fh_to_ctx(priv);
 396         int ret = 0;
 397         struct v4l2_pix_format_mplane *pix_mp;
 398         struct s5p_mfc_buf_size *buf_size = dev->variant->buf_size;
 399 
 400         mfc_debug_enter();
 401         ret = vidioc_try_fmt(file, priv, f);
 402         pix_mp = &f->fmt.pix_mp;
 403         if (ret)
 404                 return ret;
 405         if (vb2_is_streaming(&ctx->vq_src) || vb2_is_streaming(&ctx->vq_dst)) {
 406                 v4l2_err(&dev->v4l2_dev, "%s queue busy\n", __func__);
 407                 ret = -EBUSY;
 408                 goto out;
 409         }
 410         if (f->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) {
 411                 /* dst_fmt is validated by call to vidioc_try_fmt */
 412                 ctx->dst_fmt = find_format(f, MFC_FMT_RAW);
 413                 ret = 0;
 414                 goto out;
 415         } else if (f->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) {
 416                 /* src_fmt is validated by call to vidioc_try_fmt */
 417                 ctx->src_fmt = find_format(f, MFC_FMT_DEC);
 418                 ctx->codec_mode = ctx->src_fmt->codec_mode;
 419                 mfc_debug(2, "The codec number is: %d\n", ctx->codec_mode);
 420                 pix_mp->height = 0;
 421                 pix_mp->width = 0;
 422                 if (pix_mp->plane_fmt[0].sizeimage == 0)
 423                         pix_mp->plane_fmt[0].sizeimage = ctx->dec_src_buf_size =
 424                                                                 DEF_CPB_SIZE;
 425                 else if (pix_mp->plane_fmt[0].sizeimage > buf_size->cpb)
 426                         ctx->dec_src_buf_size = buf_size->cpb;
 427                 else
 428                         ctx->dec_src_buf_size = pix_mp->plane_fmt[0].sizeimage;
 429                 pix_mp->plane_fmt[0].bytesperline = 0;
 430                 ctx->state = MFCINST_INIT;
 431                 ret = 0;
 432                 goto out;
 433         } else {
 434                 mfc_err("Wrong type error for S_FMT : %d", f->type);
 435                 ret = -EINVAL;
 436                 goto out;
 437         }
 438 
 439 out:
 440         mfc_debug_leave();
 441         return ret;
 442 }
 443 
 444 static int reqbufs_output(struct s5p_mfc_dev *dev, struct s5p_mfc_ctx *ctx,
 445                                 struct v4l2_requestbuffers *reqbufs)
 446 {
 447         int ret = 0;
 448 
 449         s5p_mfc_clock_on();
 450 
 451         if (reqbufs->count == 0) {
 452                 mfc_debug(2, "Freeing buffers\n");
 453                 ret = vb2_reqbufs(&ctx->vq_src, reqbufs);
 454                 if (ret)
 455                         goto out;
 456                 ctx->src_bufs_cnt = 0;
 457                 ctx->output_state = QUEUE_FREE;
 458         } else if (ctx->output_state == QUEUE_FREE) {
 459                 /* Can only request buffers when we have a valid format set. */
 460                 WARN_ON(ctx->src_bufs_cnt != 0);
 461                 if (ctx->state != MFCINST_INIT) {
 462                         mfc_err("Reqbufs called in an invalid state\n");
 463                         ret = -EINVAL;
 464                         goto out;
 465                 }
 466 
 467                 mfc_debug(2, "Allocating %d buffers for OUTPUT queue\n",
 468                                 reqbufs->count);
 469                 ret = vb2_reqbufs(&ctx->vq_src, reqbufs);
 470                 if (ret)
 471                         goto out;
 472 
 473                 ret = s5p_mfc_open_mfc_inst(dev, ctx);
 474                 if (ret) {
 475                         reqbufs->count = 0;
 476                         vb2_reqbufs(&ctx->vq_src, reqbufs);
 477                         goto out;
 478                 }
 479 
 480                 ctx->output_state = QUEUE_BUFS_REQUESTED;
 481         } else {
 482                 mfc_err("Buffers have already been requested\n");
 483                 ret = -EINVAL;
 484         }
 485 out:
 486         s5p_mfc_clock_off();
 487         if (ret)
 488                 mfc_err("Failed allocating buffers for OUTPUT queue\n");
 489         return ret;
 490 }
 491 
 492 static int reqbufs_capture(struct s5p_mfc_dev *dev, struct s5p_mfc_ctx *ctx,
 493                                 struct v4l2_requestbuffers *reqbufs)
 494 {
 495         int ret = 0;
 496 
 497         s5p_mfc_clock_on();
 498 
 499         if (reqbufs->count == 0) {
 500                 mfc_debug(2, "Freeing buffers\n");
 501                 ret = vb2_reqbufs(&ctx->vq_dst, reqbufs);
 502                 if (ret)
 503                         goto out;
 504                 s5p_mfc_hw_call(dev->mfc_ops, release_codec_buffers, ctx);
 505                 ctx->dst_bufs_cnt = 0;
 506         } else if (ctx->capture_state == QUEUE_FREE) {
 507                 WARN_ON(ctx->dst_bufs_cnt != 0);
 508                 mfc_debug(2, "Allocating %d buffers for CAPTURE queue\n",
 509                                 reqbufs->count);
 510                 ret = vb2_reqbufs(&ctx->vq_dst, reqbufs);
 511                 if (ret)
 512                         goto out;
 513 
 514                 ctx->capture_state = QUEUE_BUFS_REQUESTED;
 515                 ctx->total_dpb_count = reqbufs->count;
 516 
 517                 ret = s5p_mfc_hw_call(dev->mfc_ops, alloc_codec_buffers, ctx);
 518                 if (ret) {
 519                         mfc_err("Failed to allocate decoding buffers\n");
 520                         reqbufs->count = 0;
 521                         vb2_reqbufs(&ctx->vq_dst, reqbufs);
 522                         ret = -ENOMEM;
 523                         ctx->capture_state = QUEUE_FREE;
 524                         goto out;
 525                 }
 526 
 527                 WARN_ON(ctx->dst_bufs_cnt != ctx->total_dpb_count);
 528                 ctx->capture_state = QUEUE_BUFS_MMAPED;
 529 
 530                 if (s5p_mfc_ctx_ready(ctx))
 531                         set_work_bit_irqsave(ctx);
 532                 s5p_mfc_hw_call(dev->mfc_ops, try_run, dev);
 533                 s5p_mfc_wait_for_done_ctx(ctx, S5P_MFC_R2H_CMD_INIT_BUFFERS_RET,
 534                                           0);
 535         } else {
 536                 mfc_err("Buffers have already been requested\n");
 537                 ret = -EINVAL;
 538         }
 539 out:
 540         s5p_mfc_clock_off();
 541         if (ret)
 542                 mfc_err("Failed allocating buffers for CAPTURE queue\n");
 543         return ret;
 544 }
 545 
 546 /* Request buffers */
 547 static int vidioc_reqbufs(struct file *file, void *priv,
 548                                           struct v4l2_requestbuffers *reqbufs)
 549 {
 550         struct s5p_mfc_dev *dev = video_drvdata(file);
 551         struct s5p_mfc_ctx *ctx = fh_to_ctx(priv);
 552 
 553         if (reqbufs->memory != V4L2_MEMORY_MMAP) {
 554                 mfc_debug(2, "Only V4L2_MEMORY_MMAP is supported\n");
 555                 return -EINVAL;
 556         }
 557 
 558         if (reqbufs->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) {
 559                 return reqbufs_output(dev, ctx, reqbufs);
 560         } else if (reqbufs->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) {
 561                 return reqbufs_capture(dev, ctx, reqbufs);
 562         } else {
 563                 mfc_err("Invalid type requested\n");
 564                 return -EINVAL;
 565         }
 566 }
 567 
 568 /* Query buffer */
 569 static int vidioc_querybuf(struct file *file, void *priv,
 570                                                    struct v4l2_buffer *buf)
 571 {
 572         struct s5p_mfc_ctx *ctx = fh_to_ctx(priv);
 573         int ret;
 574         int i;
 575 
 576         if (buf->memory != V4L2_MEMORY_MMAP) {
 577                 mfc_err("Only mmapped buffers can be used\n");
 578                 return -EINVAL;
 579         }
 580         mfc_debug(2, "State: %d, buf->type: %d\n", ctx->state, buf->type);
 581         if (ctx->state == MFCINST_GOT_INST &&
 582                         buf->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) {
 583                 ret = vb2_querybuf(&ctx->vq_src, buf);
 584         } else if (ctx->state == MFCINST_RUNNING &&
 585                         buf->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) {
 586                 ret = vb2_querybuf(&ctx->vq_dst, buf);
 587                 for (i = 0; i < buf->length; i++)
 588                         buf->m.planes[i].m.mem_offset += DST_QUEUE_OFF_BASE;
 589         } else {
 590                 mfc_err("vidioc_querybuf called in an inappropriate state\n");
 591                 ret = -EINVAL;
 592         }
 593         mfc_debug_leave();
 594         return ret;
 595 }
 596 
 597 /* Queue a buffer */
 598 static int vidioc_qbuf(struct file *file, void *priv, struct v4l2_buffer *buf)
 599 {
 600         struct s5p_mfc_ctx *ctx = fh_to_ctx(priv);
 601 
 602         if (ctx->state == MFCINST_ERROR) {
 603                 mfc_err("Call on QBUF after unrecoverable error\n");
 604                 return -EIO;
 605         }
 606         if (buf->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE)
 607                 return vb2_qbuf(&ctx->vq_src, NULL, buf);
 608         else if (buf->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE)
 609                 return vb2_qbuf(&ctx->vq_dst, NULL, buf);
 610         return -EINVAL;
 611 }
 612 
 613 /* Dequeue a buffer */
 614 static int vidioc_dqbuf(struct file *file, void *priv, struct v4l2_buffer *buf)
 615 {
 616         const struct v4l2_event ev = {
 617                 .type = V4L2_EVENT_EOS
 618         };
 619         struct s5p_mfc_ctx *ctx = fh_to_ctx(priv);
 620         int ret;
 621 
 622         if (ctx->state == MFCINST_ERROR) {
 623                 mfc_err_limited("Call on DQBUF after unrecoverable error\n");
 624                 return -EIO;
 625         }
 626 
 627         switch (buf->type) {
 628         case V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE:
 629                 return vb2_dqbuf(&ctx->vq_src, buf, file->f_flags & O_NONBLOCK);
 630         case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE:
 631                 ret = vb2_dqbuf(&ctx->vq_dst, buf, file->f_flags & O_NONBLOCK);
 632                 if (ret)
 633                         return ret;
 634 
 635                 if (ctx->state == MFCINST_FINISHED &&
 636                     (ctx->dst_bufs[buf->index].flags & MFC_BUF_FLAG_EOS))
 637                         v4l2_event_queue_fh(&ctx->fh, &ev);
 638                 return 0;
 639         default:
 640                 return -EINVAL;
 641         }
 642 }
 643 
 644 /* Export DMA buffer */
 645 static int vidioc_expbuf(struct file *file, void *priv,
 646         struct v4l2_exportbuffer *eb)
 647 {
 648         struct s5p_mfc_ctx *ctx = fh_to_ctx(priv);
 649 
 650         if (eb->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE)
 651                 return vb2_expbuf(&ctx->vq_src, eb);
 652         if (eb->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE)
 653                 return vb2_expbuf(&ctx->vq_dst, eb);
 654         return -EINVAL;
 655 }
 656 
 657 /* Stream on */
 658 static int vidioc_streamon(struct file *file, void *priv,
 659                            enum v4l2_buf_type type)
 660 {
 661         struct s5p_mfc_ctx *ctx = fh_to_ctx(priv);
 662         int ret = -EINVAL;
 663 
 664         mfc_debug_enter();
 665         if (type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE)
 666                 ret = vb2_streamon(&ctx->vq_src, type);
 667         else if (type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE)
 668                 ret = vb2_streamon(&ctx->vq_dst, type);
 669         mfc_debug_leave();
 670         return ret;
 671 }
 672 
 673 /* Stream off, which equals to a pause */
 674 static int vidioc_streamoff(struct file *file, void *priv,
 675                             enum v4l2_buf_type type)
 676 {
 677         struct s5p_mfc_ctx *ctx = fh_to_ctx(priv);
 678 
 679         if (type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE)
 680                 return vb2_streamoff(&ctx->vq_src, type);
 681         else if (type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE)
 682                 return vb2_streamoff(&ctx->vq_dst, type);
 683         return -EINVAL;
 684 }
 685 
 686 /* Set controls - v4l2 control framework */
 687 static int s5p_mfc_dec_s_ctrl(struct v4l2_ctrl *ctrl)
 688 {
 689         struct s5p_mfc_ctx *ctx = ctrl_to_ctx(ctrl);
 690 
 691         switch (ctrl->id) {
 692         case V4L2_CID_MPEG_MFC51_VIDEO_DECODER_H264_DISPLAY_DELAY:
 693                 ctx->display_delay = ctrl->val;
 694                 break;
 695         case V4L2_CID_MPEG_MFC51_VIDEO_DECODER_H264_DISPLAY_DELAY_ENABLE:
 696                 ctx->display_delay_enable = ctrl->val;
 697                 break;
 698         case V4L2_CID_MPEG_VIDEO_DECODER_MPEG4_DEBLOCK_FILTER:
 699                 ctx->loop_filter_mpeg4 = ctrl->val;
 700                 break;
 701         case V4L2_CID_MPEG_VIDEO_DECODER_SLICE_INTERFACE:
 702                 ctx->slice_interface = ctrl->val;
 703                 break;
 704         default:
 705                 mfc_err("Invalid control 0x%08x\n", ctrl->id);
 706                 return -EINVAL;
 707         }
 708         return 0;
 709 }
 710 
 711 static int s5p_mfc_dec_g_v_ctrl(struct v4l2_ctrl *ctrl)
 712 {
 713         struct s5p_mfc_ctx *ctx = ctrl_to_ctx(ctrl);
 714         struct s5p_mfc_dev *dev = ctx->dev;
 715 
 716         switch (ctrl->id) {
 717         case V4L2_CID_MIN_BUFFERS_FOR_CAPTURE:
 718                 if (ctx->state >= MFCINST_HEAD_PARSED &&
 719                     ctx->state < MFCINST_ABORT) {
 720                         ctrl->val = ctx->pb_count;
 721                         break;
 722                 } else if (ctx->state != MFCINST_INIT &&
 723                                 ctx->state != MFCINST_RES_CHANGE_END) {
 724                         v4l2_err(&dev->v4l2_dev, "Decoding not initialised\n");
 725                         return -EINVAL;
 726                 }
 727                 /* Should wait for the header to be parsed */
 728                 s5p_mfc_wait_for_done_ctx(ctx,
 729                                 S5P_MFC_R2H_CMD_SEQ_DONE_RET, 0);
 730                 if (ctx->state >= MFCINST_HEAD_PARSED &&
 731                     ctx->state < MFCINST_ABORT) {
 732                         ctrl->val = ctx->pb_count;
 733                 } else {
 734                         v4l2_err(&dev->v4l2_dev, "Decoding not initialised\n");
 735                         return -EINVAL;
 736                 }
 737                 break;
 738         }
 739         return 0;
 740 }
 741 
 742 
 743 static const struct v4l2_ctrl_ops s5p_mfc_dec_ctrl_ops = {
 744         .s_ctrl = s5p_mfc_dec_s_ctrl,
 745         .g_volatile_ctrl = s5p_mfc_dec_g_v_ctrl,
 746 };
 747 
 748 /* Get compose information */
 749 static int vidioc_g_selection(struct file *file, void *priv,
 750                               struct v4l2_selection *s)
 751 {
 752         struct s5p_mfc_ctx *ctx = fh_to_ctx(priv);
 753         struct s5p_mfc_dev *dev = ctx->dev;
 754         u32 left, right, top, bottom;
 755         u32 width, height;
 756 
 757         if (s->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
 758                 return -EINVAL;
 759 
 760         if (ctx->state != MFCINST_HEAD_PARSED &&
 761             ctx->state != MFCINST_RUNNING &&
 762             ctx->state != MFCINST_FINISHING &&
 763             ctx->state != MFCINST_FINISHED) {
 764                 mfc_err("Can not get compose information\n");
 765                 return -EINVAL;
 766         }
 767         if (ctx->src_fmt->fourcc == V4L2_PIX_FMT_H264) {
 768                 left = s5p_mfc_hw_call(dev->mfc_ops, get_crop_info_h, ctx);
 769                 right = left >> S5P_FIMV_SHARED_CROP_RIGHT_SHIFT;
 770                 left = left & S5P_FIMV_SHARED_CROP_LEFT_MASK;
 771                 top = s5p_mfc_hw_call(dev->mfc_ops, get_crop_info_v, ctx);
 772                 bottom = top >> S5P_FIMV_SHARED_CROP_BOTTOM_SHIFT;
 773                 top = top & S5P_FIMV_SHARED_CROP_TOP_MASK;
 774                 width = ctx->img_width - left - right;
 775                 height = ctx->img_height - top - bottom;
 776                 mfc_debug(2, "Composing info [h264]: l=%d t=%d w=%d h=%d (r=%d b=%d fw=%d fh=%d\n",
 777                           left, top, s->r.width, s->r.height, right, bottom,
 778                           ctx->buf_width, ctx->buf_height);
 779         } else {
 780                 left = 0;
 781                 top = 0;
 782                 width = ctx->img_width;
 783                 height = ctx->img_height;
 784                 mfc_debug(2, "Composing info: w=%d h=%d fw=%d fh=%d\n",
 785                           s->r.width, s->r.height, ctx->buf_width,
 786                           ctx->buf_height);
 787         }
 788 
 789         switch (s->target) {
 790         case V4L2_SEL_TGT_COMPOSE:
 791         case V4L2_SEL_TGT_COMPOSE_DEFAULT:
 792         case V4L2_SEL_TGT_COMPOSE_BOUNDS:
 793                 s->r.left = left;
 794                 s->r.top = top;
 795                 s->r.width = width;
 796                 s->r.height = height;
 797                 break;
 798         default:
 799                 return -EINVAL;
 800         }
 801         return 0;
 802 }
 803 
 804 static int vidioc_decoder_cmd(struct file *file, void *priv,
 805                               struct v4l2_decoder_cmd *cmd)
 806 {
 807         struct s5p_mfc_ctx *ctx = fh_to_ctx(priv);
 808         struct s5p_mfc_dev *dev = ctx->dev;
 809         struct s5p_mfc_buf *buf;
 810         unsigned long flags;
 811 
 812         switch (cmd->cmd) {
 813         case V4L2_DEC_CMD_STOP:
 814                 if (cmd->flags != 0)
 815                         return -EINVAL;
 816 
 817                 if (!vb2_is_streaming(&ctx->vq_src))
 818                         return -EINVAL;
 819 
 820                 spin_lock_irqsave(&dev->irqlock, flags);
 821                 if (list_empty(&ctx->src_queue)) {
 822                         mfc_err("EOS: empty src queue, entering finishing state");
 823                         ctx->state = MFCINST_FINISHING;
 824                         if (s5p_mfc_ctx_ready(ctx))
 825                                 set_work_bit_irqsave(ctx);
 826                         spin_unlock_irqrestore(&dev->irqlock, flags);
 827                         s5p_mfc_hw_call(dev->mfc_ops, try_run, dev);
 828                 } else {
 829                         mfc_err("EOS: marking last buffer of stream");
 830                         buf = list_entry(ctx->src_queue.prev,
 831                                                 struct s5p_mfc_buf, list);
 832                         if (buf->flags & MFC_BUF_FLAG_USED)
 833                                 ctx->state = MFCINST_FINISHING;
 834                         else
 835                                 buf->flags |= MFC_BUF_FLAG_EOS;
 836                         spin_unlock_irqrestore(&dev->irqlock, flags);
 837                 }
 838                 break;
 839         default:
 840                 return -EINVAL;
 841         }
 842         return 0;
 843 }
 844 
 845 static int vidioc_subscribe_event(struct v4l2_fh *fh,
 846                                 const struct  v4l2_event_subscription *sub)
 847 {
 848         switch (sub->type) {
 849         case V4L2_EVENT_EOS:
 850                 return v4l2_event_subscribe(fh, sub, 2, NULL);
 851         case V4L2_EVENT_SOURCE_CHANGE:
 852                 return v4l2_src_change_event_subscribe(fh, sub);
 853         default:
 854                 return -EINVAL;
 855         }
 856 }
 857 
 858 
 859 /* v4l2_ioctl_ops */
 860 static 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_out = vidioc_enum_fmt_vid_out,
 864         .vidioc_g_fmt_vid_cap_mplane = vidioc_g_fmt,
 865         .vidioc_g_fmt_vid_out_mplane = vidioc_g_fmt,
 866         .vidioc_try_fmt_vid_cap_mplane = vidioc_try_fmt,
 867         .vidioc_try_fmt_vid_out_mplane = vidioc_try_fmt,
 868         .vidioc_s_fmt_vid_cap_mplane = vidioc_s_fmt,
 869         .vidioc_s_fmt_vid_out_mplane = vidioc_s_fmt,
 870         .vidioc_reqbufs = vidioc_reqbufs,
 871         .vidioc_querybuf = vidioc_querybuf,
 872         .vidioc_qbuf = vidioc_qbuf,
 873         .vidioc_dqbuf = vidioc_dqbuf,
 874         .vidioc_expbuf = vidioc_expbuf,
 875         .vidioc_streamon = vidioc_streamon,
 876         .vidioc_streamoff = vidioc_streamoff,
 877         .vidioc_g_selection = vidioc_g_selection,
 878         .vidioc_decoder_cmd = vidioc_decoder_cmd,
 879         .vidioc_subscribe_event = vidioc_subscribe_event,
 880         .vidioc_unsubscribe_event = v4l2_event_unsubscribe,
 881 };
 882 
 883 static int s5p_mfc_queue_setup(struct vb2_queue *vq,
 884                         unsigned int *buf_count,
 885                         unsigned int *plane_count, unsigned int psize[],
 886                         struct device *alloc_devs[])
 887 {
 888         struct s5p_mfc_ctx *ctx = fh_to_ctx(vq->drv_priv);
 889         struct s5p_mfc_dev *dev = ctx->dev;
 890 
 891         /* Video output for decoding (source)
 892          * this can be set after getting an instance */
 893         if (ctx->state == MFCINST_INIT &&
 894             vq->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) {
 895                 /* A single plane is required for input */
 896                 *plane_count = 1;
 897                 if (*buf_count < 1)
 898                         *buf_count = 1;
 899                 if (*buf_count > MFC_MAX_BUFFERS)
 900                         *buf_count = MFC_MAX_BUFFERS;
 901         /* Video capture for decoding (destination)
 902          * this can be set after the header was parsed */
 903         } else if (ctx->state == MFCINST_HEAD_PARSED &&
 904                    vq->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) {
 905                 /* Output plane count is 2 - one for Y and one for CbCr */
 906                 *plane_count = 2;
 907                 /* Setup buffer count */
 908                 if (*buf_count < ctx->pb_count)
 909                         *buf_count = ctx->pb_count;
 910                 if (*buf_count > ctx->pb_count + MFC_MAX_EXTRA_DPB)
 911                         *buf_count = ctx->pb_count + MFC_MAX_EXTRA_DPB;
 912                 if (*buf_count > MFC_MAX_BUFFERS)
 913                         *buf_count = MFC_MAX_BUFFERS;
 914         } else {
 915                 mfc_err("State seems invalid. State = %d, vq->type = %d\n",
 916                                                         ctx->state, vq->type);
 917                 return -EINVAL;
 918         }
 919         mfc_debug(2, "Buffer count=%d, plane count=%d\n",
 920                                                 *buf_count, *plane_count);
 921         if (ctx->state == MFCINST_HEAD_PARSED &&
 922             vq->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) {
 923                 psize[0] = ctx->luma_size;
 924                 psize[1] = ctx->chroma_size;
 925 
 926                 if (IS_MFCV6_PLUS(dev))
 927                         alloc_devs[0] = ctx->dev->mem_dev[BANK_L_CTX];
 928                 else
 929                         alloc_devs[0] = ctx->dev->mem_dev[BANK_R_CTX];
 930                 alloc_devs[1] = ctx->dev->mem_dev[BANK_L_CTX];
 931         } else if (vq->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE &&
 932                    ctx->state == MFCINST_INIT) {
 933                 psize[0] = ctx->dec_src_buf_size;
 934                 alloc_devs[0] = ctx->dev->mem_dev[BANK_L_CTX];
 935         } else {
 936                 mfc_err("This video node is dedicated to decoding. Decoding not initialized\n");
 937                 return -EINVAL;
 938         }
 939         return 0;
 940 }
 941 
 942 static int s5p_mfc_buf_init(struct vb2_buffer *vb)
 943 {
 944         struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
 945         struct vb2_queue *vq = vb->vb2_queue;
 946         struct s5p_mfc_ctx *ctx = fh_to_ctx(vq->drv_priv);
 947         unsigned int i;
 948 
 949         if (vq->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) {
 950                 if (ctx->capture_state == QUEUE_BUFS_MMAPED)
 951                         return 0;
 952                 for (i = 0; i < ctx->dst_fmt->num_planes; i++) {
 953                         if (IS_ERR_OR_NULL(ERR_PTR(
 954                                         vb2_dma_contig_plane_dma_addr(vb, i)))) {
 955                                 mfc_err("Plane mem not allocated\n");
 956                                 return -EINVAL;
 957                         }
 958                 }
 959                 if (vb2_plane_size(vb, 0) < ctx->luma_size ||
 960                         vb2_plane_size(vb, 1) < ctx->chroma_size) {
 961                         mfc_err("Plane buffer (CAPTURE) is too small\n");
 962                         return -EINVAL;
 963                 }
 964                 i = vb->index;
 965                 ctx->dst_bufs[i].b = vbuf;
 966                 ctx->dst_bufs[i].cookie.raw.luma =
 967                                         vb2_dma_contig_plane_dma_addr(vb, 0);
 968                 ctx->dst_bufs[i].cookie.raw.chroma =
 969                                         vb2_dma_contig_plane_dma_addr(vb, 1);
 970                 ctx->dst_bufs_cnt++;
 971         } else if (vq->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) {
 972                 if (IS_ERR_OR_NULL(ERR_PTR(
 973                                         vb2_dma_contig_plane_dma_addr(vb, 0)))) {
 974                         mfc_err("Plane memory not allocated\n");
 975                         return -EINVAL;
 976                 }
 977                 if (vb2_plane_size(vb, 0) < ctx->dec_src_buf_size) {
 978                         mfc_err("Plane buffer (OUTPUT) is too small\n");
 979                         return -EINVAL;
 980                 }
 981 
 982                 i = vb->index;
 983                 ctx->src_bufs[i].b = vbuf;
 984                 ctx->src_bufs[i].cookie.stream =
 985                                         vb2_dma_contig_plane_dma_addr(vb, 0);
 986                 ctx->src_bufs_cnt++;
 987         } else {
 988                 mfc_err("s5p_mfc_buf_init: unknown queue type\n");
 989                 return -EINVAL;
 990         }
 991         return 0;
 992 }
 993 
 994 static int s5p_mfc_start_streaming(struct vb2_queue *q, unsigned int count)
 995 {
 996         struct s5p_mfc_ctx *ctx = fh_to_ctx(q->drv_priv);
 997         struct s5p_mfc_dev *dev = ctx->dev;
 998 
 999         v4l2_ctrl_handler_setup(&ctx->ctrl_handler);
1000         if (ctx->state == MFCINST_FINISHING ||
1001                 ctx->state == MFCINST_FINISHED)
1002                 ctx->state = MFCINST_RUNNING;
1003         /* If context is ready then dev = work->data;schedule it to run */
1004         if (s5p_mfc_ctx_ready(ctx))
1005                 set_work_bit_irqsave(ctx);
1006         s5p_mfc_hw_call(dev->mfc_ops, try_run, dev);
1007         return 0;
1008 }
1009 
1010 static void s5p_mfc_stop_streaming(struct vb2_queue *q)
1011 {
1012         unsigned long flags;
1013         struct s5p_mfc_ctx *ctx = fh_to_ctx(q->drv_priv);
1014         struct s5p_mfc_dev *dev = ctx->dev;
1015         int aborted = 0;
1016 
1017         spin_lock_irqsave(&dev->irqlock, flags);
1018         if ((ctx->state == MFCINST_FINISHING ||
1019                 ctx->state ==  MFCINST_RUNNING) &&
1020                 dev->curr_ctx == ctx->num && dev->hw_lock) {
1021                 ctx->state = MFCINST_ABORT;
1022                 spin_unlock_irqrestore(&dev->irqlock, flags);
1023                 s5p_mfc_wait_for_done_ctx(ctx,
1024                                         S5P_MFC_R2H_CMD_FRAME_DONE_RET, 0);
1025                 aborted = 1;
1026                 spin_lock_irqsave(&dev->irqlock, flags);
1027         }
1028         if (q->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) {
1029                 s5p_mfc_cleanup_queue(&ctx->dst_queue, &ctx->vq_dst);
1030                 INIT_LIST_HEAD(&ctx->dst_queue);
1031                 ctx->dst_queue_cnt = 0;
1032                 ctx->dpb_flush_flag = 1;
1033                 ctx->dec_dst_flag = 0;
1034                 if (IS_MFCV6_PLUS(dev) && (ctx->state == MFCINST_RUNNING)) {
1035                         ctx->state = MFCINST_FLUSH;
1036                         set_work_bit_irqsave(ctx);
1037                         s5p_mfc_hw_call(dev->mfc_ops, try_run, dev);
1038                         spin_unlock_irqrestore(&dev->irqlock, flags);
1039                         if (s5p_mfc_wait_for_done_ctx(ctx,
1040                                 S5P_MFC_R2H_CMD_DPB_FLUSH_RET, 0))
1041                                 mfc_err("Err flushing buffers\n");
1042                         spin_lock_irqsave(&dev->irqlock, flags);
1043                 }
1044         } else if (q->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) {
1045                 s5p_mfc_cleanup_queue(&ctx->src_queue, &ctx->vq_src);
1046                 INIT_LIST_HEAD(&ctx->src_queue);
1047                 ctx->src_queue_cnt = 0;
1048         }
1049         if (aborted)
1050                 ctx->state = MFCINST_RUNNING;
1051         spin_unlock_irqrestore(&dev->irqlock, flags);
1052 }
1053 
1054 
1055 static void s5p_mfc_buf_queue(struct vb2_buffer *vb)
1056 {
1057         struct vb2_queue *vq = vb->vb2_queue;
1058         struct s5p_mfc_ctx *ctx = fh_to_ctx(vq->drv_priv);
1059         struct s5p_mfc_dev *dev = ctx->dev;
1060         unsigned long flags;
1061         struct s5p_mfc_buf *mfc_buf;
1062 
1063         if (vq->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) {
1064                 mfc_buf = &ctx->src_bufs[vb->index];
1065                 mfc_buf->flags &= ~MFC_BUF_FLAG_USED;
1066                 spin_lock_irqsave(&dev->irqlock, flags);
1067                 list_add_tail(&mfc_buf->list, &ctx->src_queue);
1068                 ctx->src_queue_cnt++;
1069                 spin_unlock_irqrestore(&dev->irqlock, flags);
1070         } else if (vq->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) {
1071                 mfc_buf = &ctx->dst_bufs[vb->index];
1072                 mfc_buf->flags &= ~MFC_BUF_FLAG_USED;
1073                 /* Mark destination as available for use by MFC */
1074                 spin_lock_irqsave(&dev->irqlock, flags);
1075                 set_bit(vb->index, &ctx->dec_dst_flag);
1076                 list_add_tail(&mfc_buf->list, &ctx->dst_queue);
1077                 ctx->dst_queue_cnt++;
1078                 spin_unlock_irqrestore(&dev->irqlock, flags);
1079         } else {
1080                 mfc_err("Unsupported buffer type (%d)\n", vq->type);
1081         }
1082         if (s5p_mfc_ctx_ready(ctx))
1083                 set_work_bit_irqsave(ctx);
1084         s5p_mfc_hw_call(dev->mfc_ops, try_run, dev);
1085 }
1086 
1087 static struct vb2_ops s5p_mfc_dec_qops = {
1088         .queue_setup            = s5p_mfc_queue_setup,
1089         .wait_prepare           = vb2_ops_wait_prepare,
1090         .wait_finish            = vb2_ops_wait_finish,
1091         .buf_init               = s5p_mfc_buf_init,
1092         .start_streaming        = s5p_mfc_start_streaming,
1093         .stop_streaming         = s5p_mfc_stop_streaming,
1094         .buf_queue              = s5p_mfc_buf_queue,
1095 };
1096 
1097 const struct s5p_mfc_codec_ops *get_dec_codec_ops(void)
1098 {
1099         return &decoder_codec_ops;
1100 }
1101 
1102 struct vb2_ops *get_dec_queue_ops(void)
1103 {
1104         return &s5p_mfc_dec_qops;
1105 }
1106 
1107 const struct v4l2_ioctl_ops *get_dec_v4l2_ioctl_ops(void)
1108 {
1109         return &s5p_mfc_dec_ioctl_ops;
1110 }
1111 
1112 #define IS_MFC51_PRIV(x) ((V4L2_CTRL_ID2WHICH(x) == V4L2_CTRL_CLASS_MPEG) \
1113                                                 && V4L2_CTRL_DRIVER_PRIV(x))
1114 
1115 int s5p_mfc_dec_ctrls_setup(struct s5p_mfc_ctx *ctx)
1116 {
1117         struct v4l2_ctrl_config cfg;
1118         int i;
1119 
1120         v4l2_ctrl_handler_init(&ctx->ctrl_handler, NUM_CTRLS);
1121         if (ctx->ctrl_handler.error) {
1122                 mfc_err("v4l2_ctrl_handler_init failed\n");
1123                 return ctx->ctrl_handler.error;
1124         }
1125 
1126         for (i = 0; i < NUM_CTRLS; i++) {
1127                 if (IS_MFC51_PRIV(controls[i].id)) {
1128                         memset(&cfg, 0, sizeof(struct v4l2_ctrl_config));
1129                         cfg.ops = &s5p_mfc_dec_ctrl_ops;
1130                         cfg.id = controls[i].id;
1131                         cfg.min = controls[i].minimum;
1132                         cfg.max = controls[i].maximum;
1133                         cfg.def = controls[i].default_value;
1134                         cfg.name = controls[i].name;
1135                         cfg.type = controls[i].type;
1136 
1137                         cfg.step = controls[i].step;
1138                         cfg.menu_skip_mask = 0;
1139 
1140                         ctx->ctrls[i] = v4l2_ctrl_new_custom(&ctx->ctrl_handler,
1141                                         &cfg, NULL);
1142                 } else {
1143                         ctx->ctrls[i] = v4l2_ctrl_new_std(&ctx->ctrl_handler,
1144                                         &s5p_mfc_dec_ctrl_ops,
1145                                         controls[i].id, controls[i].minimum,
1146                                         controls[i].maximum, controls[i].step,
1147                                         controls[i].default_value);
1148                 }
1149                 if (ctx->ctrl_handler.error) {
1150                         mfc_err("Adding control (%d) failed\n", i);
1151                         return ctx->ctrl_handler.error;
1152                 }
1153                 if (controls[i].is_volatile && ctx->ctrls[i])
1154                         ctx->ctrls[i]->flags |= V4L2_CTRL_FLAG_VOLATILE;
1155         }
1156         return 0;
1157 }
1158 
1159 void s5p_mfc_dec_ctrls_delete(struct s5p_mfc_ctx *ctx)
1160 {
1161         int i;
1162 
1163         v4l2_ctrl_handler_free(&ctx->ctrl_handler);
1164         for (i = 0; i < NUM_CTRLS; i++)
1165                 ctx->ctrls[i] = NULL;
1166 }
1167 
1168 void s5p_mfc_dec_init(struct s5p_mfc_ctx *ctx)
1169 {
1170         struct v4l2_format f;
1171         f.fmt.pix_mp.pixelformat = V4L2_PIX_FMT_H264;
1172         ctx->src_fmt = find_format(&f, MFC_FMT_DEC);
1173         if (IS_MFCV8_PLUS(ctx->dev))
1174                 f.fmt.pix_mp.pixelformat = V4L2_PIX_FMT_NV12M;
1175         else if (IS_MFCV6_PLUS(ctx->dev))
1176                 f.fmt.pix_mp.pixelformat = V4L2_PIX_FMT_NV12MT_16X16;
1177         else
1178                 f.fmt.pix_mp.pixelformat = V4L2_PIX_FMT_NV12MT;
1179         ctx->dst_fmt = find_format(&f, MFC_FMT_RAW);
1180         mfc_debug(2, "Default src_fmt is %p, dest_fmt is %p\n",
1181                         ctx->src_fmt, ctx->dst_fmt);
1182 }
1183 

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