drivers/media/platform/mtk-vcodec/mtk_vcodec_dec.c

   1 /*
   2  * Copyright (c) 2016 MediaTek Inc.
   3  * Author: PC Chen <pc.chen@mediatek.com>
   4  *         Tiffany Lin <tiffany.lin@mediatek.com>
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License version 2 as
   8  * published by the Free Software Foundation.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  * GNU General Public License for more details.
  14  */
  15
  16 #include <media/v4l2-event.h>
  17 #include <media/v4l2-mem2mem.h>
  18 #include <media/videobuf2-dma-contig.h>
  19
  20 #include "mtk_vcodec_drv.h"
  21 #include "mtk_vcodec_dec.h"
  22 #include "mtk_vcodec_intr.h"
  23 #include "mtk_vcodec_util.h"
  24 #include "vdec_drv_if.h"
  25 #include "mtk_vcodec_dec_pm.h"
  26
  27 #define OUT_FMT_IDX     0
  28 #define CAP_FMT_IDX     3
  29
  30 #define MTK_VDEC_MIN_W  64U
  31 #define MTK_VDEC_MIN_H  64U
  32 #define DFT_CFG_WIDTH   MTK_VDEC_MIN_W
  33 #define DFT_CFG_HEIGHT  MTK_VDEC_MIN_H
  34
  35 static struct mtk_video_fmt mtk_video_formats[] = {
  36         {
  37                 .fourcc = V4L2_PIX_FMT_H264,
  38                 .type = MTK_FMT_DEC,
  39                 .num_planes = 1,
  40         },
  41         {
  42                 .fourcc = V4L2_PIX_FMT_VP8,
  43                 .type = MTK_FMT_DEC,
  44                 .num_planes = 1,
  45         },
  46         {
  47                 .fourcc = V4L2_PIX_FMT_VP9,
  48                 .type = MTK_FMT_DEC,
  49                 .num_planes = 1,
  50         },
  51         {
  52                 .fourcc = V4L2_PIX_FMT_MT21C,
  53                 .type = MTK_FMT_FRAME,
  54                 .num_planes = 2,
  55         },
  56 };
  57
  58 static const struct mtk_codec_framesizes mtk_vdec_framesizes[] = {
  59         {
  60                 .fourcc = V4L2_PIX_FMT_H264,
  61                 .stepwise = {  MTK_VDEC_MIN_W, MTK_VDEC_MAX_W, 16,
  62                                 MTK_VDEC_MIN_H, MTK_VDEC_MAX_H, 16 },
  63         },
  64         {
  65                 .fourcc = V4L2_PIX_FMT_VP8,
  66                 .stepwise = {  MTK_VDEC_MIN_W, MTK_VDEC_MAX_W, 16,
  67                                 MTK_VDEC_MIN_H, MTK_VDEC_MAX_H, 16 },
  68         },
  69         {
  70                 .fourcc = V4L2_PIX_FMT_VP9,
  71                 .stepwise = {  MTK_VDEC_MIN_W, MTK_VDEC_MAX_W, 16,
  72                                 MTK_VDEC_MIN_H, MTK_VDEC_MAX_H, 16 },
  73         },
  74 };
  75
  76 #define NUM_SUPPORTED_FRAMESIZE ARRAY_SIZE(mtk_vdec_framesizes)
  77 #define NUM_FORMATS ARRAY_SIZE(mtk_video_formats)
  78
  79 static struct mtk_video_fmt *mtk_vdec_find_format(struct v4l2_format *f)
  80 {
  81         struct mtk_video_fmt *fmt;
  82         unsigned int k;
  83
  84         for (k = 0; k < NUM_FORMATS; k++) {
  85                 fmt = &mtk_video_formats[k];
  86                 if (fmt->fourcc == f->fmt.pix_mp.pixelformat)
  87                         return fmt;
  88         }
  89
  90         return NULL;
  91 }
  92
  93 static struct mtk_q_data *mtk_vdec_get_q_data(struct mtk_vcodec_ctx *ctx,
  94                                               enum v4l2_buf_type type)
  95 {
  96         if (V4L2_TYPE_IS_OUTPUT(type))
  97                 return &ctx->q_data[MTK_Q_DATA_SRC];
  98
  99         return &ctx->q_data[MTK_Q_DATA_DST];
 100 }
 101
 102 /*
 103  * This function tries to clean all display buffers, the buffers will return
 104  * in display order.
 105  * Note the buffers returned from codec driver may still be in driver's
 106  * reference list.
 107  */
 108 static struct vb2_buffer *get_display_buffer(struct mtk_vcodec_ctx *ctx)
 109 {
 110         struct vdec_fb *disp_frame_buffer = NULL;
 111         struct mtk_video_dec_buf *dstbuf;
 112
 113         mtk_v4l2_debug(3, "[%d]", ctx->id);
 114         if (vdec_if_get_param(ctx,
 115                         GET_PARAM_DISP_FRAME_BUFFER,
 116                         &disp_frame_buffer)) {
 117                 mtk_v4l2_err("[%d]Cannot get param : GET_PARAM_DISP_FRAME_BUFFER",
 118                         ctx->id);
 119                 return NULL;
 120         }
 121
 122         if (disp_frame_buffer == NULL) {
 123                 mtk_v4l2_debug(3, "No display frame buffer");
 124                 return NULL;
 125         }
 126
 127         dstbuf = container_of(disp_frame_buffer, struct mtk_video_dec_buf,
 128                                 frame_buffer);
 129         mutex_lock(&ctx->lock);
 130         if (dstbuf->used) {
 131                 vb2_set_plane_payload(&dstbuf->vb.vb2_buf, 0,
 132                                         ctx->picinfo.y_bs_sz);
 133                 vb2_set_plane_payload(&dstbuf->vb.vb2_buf, 1,
 134                                         ctx->picinfo.c_bs_sz);
 135
 136                 dstbuf->ready_to_display = true;
 137
 138                 mtk_v4l2_debug(2,
 139                                 "[%d]status=%x queue id=%d to done_list %d",
 140                                 ctx->id, disp_frame_buffer->status,
 141                                 dstbuf->vb.vb2_buf.index,
 142                                 dstbuf->queued_in_vb2);
 143
 144                 v4l2_m2m_buf_done(&dstbuf->vb, VB2_BUF_STATE_DONE);
 145                 ctx->decoded_frame_cnt++;
 146         }
 147         mutex_unlock(&ctx->lock);
 148         return &dstbuf->vb.vb2_buf;
 149 }
 150
 151 /*
 152  * This function tries to clean all capture buffers that are not used as
 153  * reference buffers by codec driver any more
 154  * In this case, we need re-queue buffer to vb2 buffer if user space
 155  * already returns this buffer to v4l2 or this buffer is just the output of
 156  * previous sps/pps/resolution change decode, or do nothing if user
 157  * space still owns this buffer
 158  */
 159 static struct vb2_buffer *get_free_buffer(struct mtk_vcodec_ctx *ctx)
 160 {
 161         struct mtk_video_dec_buf *dstbuf;
 162         struct vdec_fb *free_frame_buffer = NULL;
 163
 164         if (vdec_if_get_param(ctx,
 165                                 GET_PARAM_FREE_FRAME_BUFFER,
 166                                 &free_frame_buffer)) {
 167                 mtk_v4l2_err("[%d] Error!! Cannot get param", ctx->id);
 168                 return NULL;
 169         }
 170         if (free_frame_buffer == NULL) {
 171                 mtk_v4l2_debug(3, " No free frame buffer");
 172                 return NULL;
 173         }
 174
 175         mtk_v4l2_debug(3, "[%d] tmp_frame_addr = 0x%p",
 176                         ctx->id, free_frame_buffer);
 177
 178         dstbuf = container_of(free_frame_buffer, struct mtk_video_dec_buf,
 179                                 frame_buffer);
 180
 181         mutex_lock(&ctx->lock);
 182         if (dstbuf->used) {
 183                 if ((dstbuf->queued_in_vb2) &&
 184                     (dstbuf->queued_in_v4l2) &&
 185                     (free_frame_buffer->status == FB_ST_FREE)) {
 186                         /*
 187                          * After decode sps/pps or non-display buffer, we don't
 188                          * need to return capture buffer to user space, but
 189                          * just re-queue this capture buffer to vb2 queue.
 190                          * This reduce overheads that dq/q unused capture
 191                          * buffer. In this case, queued_in_vb2 = true.
 192                          */
 193                         mtk_v4l2_debug(2,
 194                                 "[%d]status=%x queue id=%d to rdy_queue %d",
 195                                 ctx->id, free_frame_buffer->status,
 196                                 dstbuf->vb.vb2_buf.index,
 197                                 dstbuf->queued_in_vb2);
 198                         v4l2_m2m_buf_queue(ctx->m2m_ctx, &dstbuf->vb);
 199                 } else if ((dstbuf->queued_in_vb2 == false) &&
 200                            (dstbuf->queued_in_v4l2 == true)) {
 201                         /*
 202                          * If buffer in v4l2 driver but not in vb2 queue yet,
 203                          * and we get this buffer from free_list, it means
 204                          * that codec driver do not use this buffer as
 205                          * reference buffer anymore. We should q buffer to vb2
 206                          * queue, so later work thread could get this buffer
 207                          * for decode. In this case, queued_in_vb2 = false
 208                          * means this buffer is not from previous decode
 209                          * output.
 210                          */
 211                         mtk_v4l2_debug(2,
 212                                         "[%d]status=%x queue id=%d to rdy_queue",
 213                                         ctx->id, free_frame_buffer->status,
 214                                         dstbuf->vb.vb2_buf.index);
 215                         v4l2_m2m_buf_queue(ctx->m2m_ctx, &dstbuf->vb);
 216                         dstbuf->queued_in_vb2 = true;
 217                 } else {
 218                         /*
 219                          * Codec driver do not need to reference this capture
 220                          * buffer and this buffer is not in v4l2 driver.
 221                          * Then we don't need to do any thing, just add log when
 222                          * we need to debug buffer flow.
 223                          * When this buffer q from user space, it could
 224                          * directly q to vb2 buffer
 225                          */
 226                         mtk_v4l2_debug(3, "[%d]status=%x err queue id=%d %d %d",
 227                                         ctx->id, free_frame_buffer->status,
 228                                         dstbuf->vb.vb2_buf.index,
 229                                         dstbuf->queued_in_vb2,
 230                                         dstbuf->queued_in_v4l2);
 231                 }
 232                 dstbuf->used = false;
 233         }
 234         mutex_unlock(&ctx->lock);
 235         return &dstbuf->vb.vb2_buf;
 236 }
 237
 238 static void clean_display_buffer(struct mtk_vcodec_ctx *ctx)
 239 {
 240         struct vb2_buffer *framptr;
 241
 242         do {
 243                 framptr = get_display_buffer(ctx);
 244         } while (framptr);
 245 }
 246
 247 static void clean_free_buffer(struct mtk_vcodec_ctx *ctx)
 248 {
 249         struct vb2_buffer *framptr;
 250
 251         do {
 252                 framptr = get_free_buffer(ctx);
 253         } while (framptr);
 254 }
 255
 256 static void mtk_vdec_queue_res_chg_event(struct mtk_vcodec_ctx *ctx)
 257 {
 258         static const struct v4l2_event ev_src_ch = {
 259                 .type = V4L2_EVENT_SOURCE_CHANGE,
 260                 .u.src_change.changes =
 261                 V4L2_EVENT_SRC_CH_RESOLUTION,
 262         };
 263
 264         mtk_v4l2_debug(1, "[%d]", ctx->id);
 265         v4l2_event_queue_fh(&ctx->fh, &ev_src_ch);
 266 }
 267
 268 static void mtk_vdec_flush_decoder(struct mtk_vcodec_ctx *ctx)
 269 {
 270         bool res_chg;
 271         int ret = 0;
 272
 273         ret = vdec_if_decode(ctx, NULL, NULL, &res_chg);
 274         if (ret)
 275                 mtk_v4l2_err("DecodeFinal failed, ret=%d", ret);
 276
 277         clean_display_buffer(ctx);
 278         clean_free_buffer(ctx);
 279 }
 280
 281 static void mtk_vdec_pic_info_update(struct mtk_vcodec_ctx *ctx)
 282 {
 283         unsigned int dpbsize = 0;
 284         int ret;
 285
 286         if (vdec_if_get_param(ctx,
 287                                 GET_PARAM_PIC_INFO,
 288                                 &ctx->last_decoded_picinfo)) {
 289                 mtk_v4l2_err("[%d]Error!! Cannot get param : GET_PARAM_PICTURE_INFO ERR",
 290                                 ctx->id);
 291                 return;
 292         }
 293
 294         if (ctx->last_decoded_picinfo.pic_w == 0 ||
 295                 ctx->last_decoded_picinfo.pic_h == 0 ||
 296                 ctx->last_decoded_picinfo.buf_w == 0 ||
 297                 ctx->last_decoded_picinfo.buf_h == 0) {
 298                 mtk_v4l2_err("Cannot get correct pic info");
 299                 return;
 300         }
 301
 302         if ((ctx->last_decoded_picinfo.pic_w == ctx->picinfo.pic_w) ||
 303             (ctx->last_decoded_picinfo.pic_h == ctx->picinfo.pic_h))
 304                 return;
 305
 306         mtk_v4l2_debug(1,
 307                         "[%d]-> new(%d,%d), old(%d,%d), real(%d,%d)",
 308                         ctx->id, ctx->last_decoded_picinfo.pic_w,
 309                         ctx->last_decoded_picinfo.pic_h,
 310                         ctx->picinfo.pic_w, ctx->picinfo.pic_h,
 311                         ctx->last_decoded_picinfo.buf_w,
 312                         ctx->last_decoded_picinfo.buf_h);
 313
 314         ret = vdec_if_get_param(ctx, GET_PARAM_DPB_SIZE, &dpbsize);
 315         if (dpbsize == 0)
 316                 mtk_v4l2_err("Incorrect dpb size, ret=%d", ret);
 317
 318         ctx->dpb_size = dpbsize;
 319 }
 320
 321 static void mtk_vdec_worker(struct work_struct *work)
 322 {
 323         struct mtk_vcodec_ctx *ctx = container_of(work, struct mtk_vcodec_ctx,
 324                                 decode_work);
 325         struct mtk_vcodec_dev *dev = ctx->dev;
 326         struct vb2_buffer *src_buf, *dst_buf;
 327         struct mtk_vcodec_mem buf;
 328         struct vdec_fb *pfb;
 329         bool res_chg = false;
 330         int ret;
 331         struct mtk_video_dec_buf *dst_buf_info, *src_buf_info;
 332         struct vb2_v4l2_buffer *dst_vb2_v4l2, *src_vb2_v4l2;
 333
 334         src_buf = v4l2_m2m_next_src_buf(ctx->m2m_ctx);
 335         if (src_buf == NULL) {
 336                 v4l2_m2m_job_finish(dev->m2m_dev_dec, ctx->m2m_ctx);
 337                 mtk_v4l2_debug(1, "[%d] src_buf empty!!", ctx->id);
 338                 return;
 339         }
 340
 341         dst_buf = v4l2_m2m_next_dst_buf(ctx->m2m_ctx);
 342         if (dst_buf == NULL) {
 343                 v4l2_m2m_job_finish(dev->m2m_dev_dec, ctx->m2m_ctx);
 344                 mtk_v4l2_debug(1, "[%d] dst_buf empty!!", ctx->id);
 345                 return;
 346         }
 347
 348         src_vb2_v4l2 = container_of(src_buf, struct vb2_v4l2_buffer, vb2_buf);
 349         src_buf_info = container_of(src_vb2_v4l2, struct mtk_video_dec_buf, vb);
 350
 351         dst_vb2_v4l2 = container_of(dst_buf, struct vb2_v4l2_buffer, vb2_buf);
 352         dst_buf_info = container_of(dst_vb2_v4l2, struct mtk_video_dec_buf, vb);
 353
 354         pfb = &dst_buf_info->frame_buffer;
 355         pfb->base_y.va = vb2_plane_vaddr(dst_buf, 0);
 356         pfb->base_y.dma_addr = vb2_dma_contig_plane_dma_addr(dst_buf, 0);
 357         pfb->base_y.size = ctx->picinfo.y_bs_sz + ctx->picinfo.y_len_sz;
 358
 359         pfb->base_c.va = vb2_plane_vaddr(dst_buf, 1);
 360         pfb->base_c.dma_addr = vb2_dma_contig_plane_dma_addr(dst_buf, 1);
 361         pfb->base_c.size = ctx->picinfo.c_bs_sz + ctx->picinfo.c_len_sz;
 362         pfb->status = 0;
 363         mtk_v4l2_debug(3, "===>[%d] vdec_if_decode() ===>", ctx->id);
 364
 365         mtk_v4l2_debug(3,
 366                         "id=%d Framebuf  pfb=%p VA=%p Y_DMA=%pad C_DMA=%pad Size=%zx",
 367                         dst_buf->index, pfb,
 368                         pfb->base_y.va, &pfb->base_y.dma_addr,
 369                         &pfb->base_c.dma_addr, pfb->base_y.size);
 370
 371         if (src_buf_info->lastframe) {
 372                 mtk_v4l2_debug(1, "Got empty flush input buffer.");
 373                 src_buf = v4l2_m2m_src_buf_remove(ctx->m2m_ctx);
 374
 375                 /* update dst buf status */
 376                 dst_buf = v4l2_m2m_dst_buf_remove(ctx->m2m_ctx);
 377                 mutex_lock(&ctx->lock);
 378                 dst_buf_info->used = false;
 379                 mutex_unlock(&ctx->lock);
 380
 381                 vdec_if_decode(ctx, NULL, NULL, &res_chg);
 382                 clean_display_buffer(ctx);
 383                 vb2_set_plane_payload(&dst_buf_info->vb.vb2_buf, 0, 0);
 384                 vb2_set_plane_payload(&dst_buf_info->vb.vb2_buf, 1, 0);
 385                 dst_vb2_v4l2->flags |= V4L2_BUF_FLAG_LAST;
 386                 v4l2_m2m_buf_done(&dst_buf_info->vb, VB2_BUF_STATE_DONE);
 387                 clean_free_buffer(ctx);
 388                 v4l2_m2m_job_finish(dev->m2m_dev_dec, ctx->m2m_ctx);
 389                 return;
 390         }
 391         buf.va = vb2_plane_vaddr(src_buf, 0);
 392         buf.dma_addr = vb2_dma_contig_plane_dma_addr(src_buf, 0);
 393         buf.size = (size_t)src_buf->planes[0].bytesused;
 394         if (!buf.va) {
 395                 v4l2_m2m_job_finish(dev->m2m_dev_dec, ctx->m2m_ctx);
 396                 mtk_v4l2_err("[%d] id=%d src_addr is NULL!!",
 397                                 ctx->id, src_buf->index);
 398                 return;
 399         }
 400         mtk_v4l2_debug(3, "[%d] Bitstream VA=%p DMA=%pad Size=%zx vb=%p",
 401                         ctx->id, buf.va, &buf.dma_addr, buf.size, src_buf);
 402         dst_buf_info->vb.vb2_buf.timestamp
 403                         = src_buf_info->vb.vb2_buf.timestamp;
 404         dst_buf_info->vb.timecode
 405                         = src_buf_info->vb.timecode;
 406         mutex_lock(&ctx->lock);
 407         dst_buf_info->used = true;
 408         mutex_unlock(&ctx->lock);
 409         src_buf_info->used = true;
 410
 411         ret = vdec_if_decode(ctx, &buf, pfb, &res_chg);
 412
 413         if (ret) {
 414                 mtk_v4l2_err(
 415                         " <===[%d], src_buf[%d] sz=0x%zx pts=%llu dst_buf[%d] vdec_if_decode() ret=%d res_chg=%d===>",
 416                         ctx->id,
 417                         src_buf->index,
 418                         buf.size,
 419                         src_buf_info->vb.vb2_buf.timestamp,
 420                         dst_buf->index,
 421                         ret, res_chg);
 422                 src_buf = v4l2_m2m_src_buf_remove(ctx->m2m_ctx);
 423                 v4l2_m2m_buf_done(&src_buf_info->vb, VB2_BUF_STATE_ERROR);
 424         } else if (res_chg == false) {
 425                 /*
 426                  * we only return src buffer with VB2_BUF_STATE_DONE
 427                  * when decode success without resolution change
 428                  */
 429                 src_buf = v4l2_m2m_src_buf_remove(ctx->m2m_ctx);
 430                 v4l2_m2m_buf_done(&src_buf_info->vb, VB2_BUF_STATE_DONE);
 431         }
 432
 433         dst_buf = v4l2_m2m_dst_buf_remove(ctx->m2m_ctx);
 434         clean_display_buffer(ctx);
 435         clean_free_buffer(ctx);
 436
 437         if (!ret && res_chg) {
 438                 mtk_vdec_pic_info_update(ctx);
 439                 /*
 440                  * On encountering a resolution change in the stream.
 441                  * The driver must first process and decode all
 442                  * remaining buffers from before the resolution change
 443                  * point, so call flush decode here
 444                  */
 445                 mtk_vdec_flush_decoder(ctx);
 446                 /*
 447                  * After all buffers containing decoded frames from
 448                  * before the resolution change point ready to be
 449                  * dequeued on the CAPTURE queue, the driver sends a
 450                  * V4L2_EVENT_SOURCE_CHANGE event for source change
 451                  * type V4L2_EVENT_SRC_CH_RESOLUTION
 452                  */
 453                 mtk_vdec_queue_res_chg_event(ctx);
 454         }
 455         v4l2_m2m_job_finish(dev->m2m_dev_dec, ctx->m2m_ctx);
 456 }
 457
 458 static int vidioc_try_decoder_cmd(struct file *file, void *priv,
 459                                 struct v4l2_decoder_cmd *cmd)
 460 {
 461         switch (cmd->cmd) {
 462         case V4L2_DEC_CMD_STOP:
 463         case V4L2_DEC_CMD_START:
 464                 if (cmd->flags != 0) {
 465                         mtk_v4l2_err("cmd->flags=%u", cmd->flags);
 466                         return -EINVAL;
 467                 }
 468                 break;
 469         default:
 470                 return -EINVAL;
 471         }
 472         return 0;
 473 }
 474
 475
 476 static int vidioc_decoder_cmd(struct file *file, void *priv,
 477                                 struct v4l2_decoder_cmd *cmd)
 478 {
 479         struct mtk_vcodec_ctx *ctx = fh_to_ctx(priv);
 480         struct vb2_queue *src_vq, *dst_vq;
 481         int ret;
 482
 483         ret = vidioc_try_decoder_cmd(file, priv, cmd);
 484         if (ret)
 485                 return ret;
 486
 487         mtk_v4l2_debug(1, "decoder cmd=%u", cmd->cmd);
 488         dst_vq = v4l2_m2m_get_vq(ctx->m2m_ctx,
 489                                 V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE);
 490         switch (cmd->cmd) {
 491         case V4L2_DEC_CMD_STOP:
 492                 src_vq = v4l2_m2m_get_vq(ctx->m2m_ctx,
 493                                 V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE);
 494                 if (!vb2_is_streaming(src_vq)) {
 495                         mtk_v4l2_debug(1, "Output stream is off. No need to flush.");
 496                         return 0;
 497                 }
 498                 if (!vb2_is_streaming(dst_vq)) {
 499                         mtk_v4l2_debug(1, "Capture stream is off. No need to flush.");
 500                         return 0;
 501                 }
 502                 v4l2_m2m_buf_queue(ctx->m2m_ctx, &ctx->empty_flush_buf->vb);
 503                 v4l2_m2m_try_schedule(ctx->m2m_ctx);
 504                 break;
 505
 506         case V4L2_DEC_CMD_START:
 507                 vb2_clear_last_buffer_dequeued(dst_vq);
 508                 break;
 509
 510         default:
 511                 return -EINVAL;
 512         }
 513
 514         return 0;
 515 }
 516
 517 void mtk_vdec_unlock(struct mtk_vcodec_ctx *ctx)
 518 {
 519         mutex_unlock(&ctx->dev->dec_mutex);
 520 }
 521
 522 void mtk_vdec_lock(struct mtk_vcodec_ctx *ctx)
 523 {
 524         mutex_lock(&ctx->dev->dec_mutex);
 525 }
 526
 527 void mtk_vcodec_dec_release(struct mtk_vcodec_ctx *ctx)
 528 {
 529         vdec_if_deinit(ctx);
 530         ctx->state = MTK_STATE_FREE;
 531 }
 532
 533 void mtk_vcodec_dec_set_default_params(struct mtk_vcodec_ctx *ctx)
 534 {
 535         struct mtk_q_data *q_data;
 536
 537         ctx->m2m_ctx->q_lock = &ctx->dev->dev_mutex;
 538         ctx->fh.m2m_ctx = ctx->m2m_ctx;
 539         ctx->fh.ctrl_handler = &ctx->ctrl_hdl;
 540         INIT_WORK(&ctx->decode_work, mtk_vdec_worker);
 541         ctx->colorspace = V4L2_COLORSPACE_REC709;
 542         ctx->ycbcr_enc = V4L2_YCBCR_ENC_DEFAULT;
 543         ctx->quantization = V4L2_QUANTIZATION_DEFAULT;
 544         ctx->xfer_func = V4L2_XFER_FUNC_DEFAULT;
 545
 546         q_data = &ctx->q_data[MTK_Q_DATA_SRC];
 547         memset(q_data, 0, sizeof(struct mtk_q_data));
 548         q_data->visible_width = DFT_CFG_WIDTH;
 549         q_data->visible_height = DFT_CFG_HEIGHT;
 550         q_data->fmt = &mtk_video_formats[OUT_FMT_IDX];
 551         q_data->field = V4L2_FIELD_NONE;
 552
 553         q_data->sizeimage[0] = DFT_CFG_WIDTH * DFT_CFG_HEIGHT;
 554         q_data->bytesperline[0] = 0;
 555
 556         q_data = &ctx->q_data[MTK_Q_DATA_DST];
 557         memset(q_data, 0, sizeof(struct mtk_q_data));
 558         q_data->visible_width = DFT_CFG_WIDTH;
 559         q_data->visible_height = DFT_CFG_HEIGHT;
 560         q_data->coded_width = DFT_CFG_WIDTH;
 561         q_data->coded_height = DFT_CFG_HEIGHT;
 562         q_data->fmt = &mtk_video_formats[CAP_FMT_IDX];
 563         q_data->field = V4L2_FIELD_NONE;
 564
 565         v4l_bound_align_image(&q_data->coded_width,
 566                                 MTK_VDEC_MIN_W,
 567                                 MTK_VDEC_MAX_W, 4,
 568                                 &q_data->coded_height,
 569                                 MTK_VDEC_MIN_H,
 570                                 MTK_VDEC_MAX_H, 5, 6);
 571
 572         q_data->sizeimage[0] = q_data->coded_width * q_data->coded_height;
 573         q_data->bytesperline[0] = q_data->coded_width;
 574         q_data->sizeimage[1] = q_data->sizeimage[0] / 2;
 575         q_data->bytesperline[1] = q_data->coded_width;
 576 }
 577
 578 static int vidioc_vdec_qbuf(struct file *file, void *priv,
 579                             struct v4l2_buffer *buf)
 580 {
 581         struct mtk_vcodec_ctx *ctx = fh_to_ctx(priv);
 582
 583         if (ctx->state == MTK_STATE_ABORT) {
 584                 mtk_v4l2_err("[%d] Call on QBUF after unrecoverable error",
 585                                 ctx->id);
 586                 return -EIO;
 587         }
 588
 589         return v4l2_m2m_qbuf(file, ctx->m2m_ctx, buf);
 590 }
 591
 592 static int vidioc_vdec_dqbuf(struct file *file, void *priv,
 593                              struct v4l2_buffer *buf)
 594 {
 595         struct mtk_vcodec_ctx *ctx = fh_to_ctx(priv);
 596
 597         if (ctx->state == MTK_STATE_ABORT) {
 598                 mtk_v4l2_err("[%d] Call on DQBUF after unrecoverable error",
 599                                 ctx->id);
 600                 return -EIO;
 601         }
 602
 603         return v4l2_m2m_dqbuf(file, ctx->m2m_ctx, buf);
 604 }
 605
 606 static int vidioc_vdec_querycap(struct file *file, void *priv,
 607                                 struct v4l2_capability *cap)
 608 {
 609         strlcpy(cap->driver, MTK_VCODEC_DEC_NAME, sizeof(cap->driver));
 610         strlcpy(cap->bus_info, MTK_PLATFORM_STR, sizeof(cap->bus_info));
 611         strlcpy(cap->card, MTK_PLATFORM_STR, sizeof(cap->card));
 612
 613         return 0;
 614 }
 615
 616 static int vidioc_vdec_subscribe_evt(struct v4l2_fh *fh,
 617                                      const struct v4l2_event_subscription *sub)
 618 {
 619         switch (sub->type) {
 620         case V4L2_EVENT_EOS:
 621                 return v4l2_event_subscribe(fh, sub, 2, NULL);
 622         case V4L2_EVENT_SOURCE_CHANGE:
 623                 return v4l2_src_change_event_subscribe(fh, sub);
 624         default:
 625                 return v4l2_ctrl_subscribe_event(fh, sub);
 626         }
 627 }
 628
 629 static int vidioc_try_fmt(struct v4l2_format *f, struct mtk_video_fmt *fmt)
 630 {
 631         struct v4l2_pix_format_mplane *pix_fmt_mp = &f->fmt.pix_mp;
 632         int i;
 633
 634         pix_fmt_mp->field = V4L2_FIELD_NONE;
 635
 636         if (f->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) {
 637                 pix_fmt_mp->num_planes = 1;
 638                 pix_fmt_mp->plane_fmt[0].bytesperline = 0;
 639         } else if (f->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) {
 640                 int tmp_w, tmp_h;
 641
 642                 pix_fmt_mp->height = clamp(pix_fmt_mp->height,
 643                                         MTK_VDEC_MIN_H,
 644                                         MTK_VDEC_MAX_H);
 645                 pix_fmt_mp->width = clamp(pix_fmt_mp->width,
 646                                         MTK_VDEC_MIN_W,
 647                                         MTK_VDEC_MAX_W);
 648
 649                 /*
 650                  * Find next closer width align 64, heign align 64, size align
 651                  * 64 rectangle
 652                  * Note: This only get default value, the real HW needed value
 653                  *       only available when ctx in MTK_STATE_HEADER state
 654                  */
 655                 tmp_w = pix_fmt_mp->width;
 656                 tmp_h = pix_fmt_mp->height;
 657                 v4l_bound_align_image(&pix_fmt_mp->width,
 658                                         MTK_VDEC_MIN_W,
 659                                         MTK_VDEC_MAX_W, 6,
 660                                         &pix_fmt_mp->height,
 661                                         MTK_VDEC_MIN_H,
 662                                         MTK_VDEC_MAX_H, 6, 9);
 663
 664                 if (pix_fmt_mp->width < tmp_w &&
 665                         (pix_fmt_mp->width + 64) <= MTK_VDEC_MAX_W)
 666                         pix_fmt_mp->width += 64;
 667                 if (pix_fmt_mp->height < tmp_h &&
 668                         (pix_fmt_mp->height + 64) <= MTK_VDEC_MAX_H)
 669                         pix_fmt_mp->height += 64;
 670
 671                 mtk_v4l2_debug(0,
 672                         "before resize width=%d, height=%d, after resize width=%d, height=%d, sizeimage=%d",
 673                         tmp_w, tmp_h, pix_fmt_mp->width,
 674                         pix_fmt_mp->height,
 675                         pix_fmt_mp->width * pix_fmt_mp->height);
 676
 677                 pix_fmt_mp->num_planes = fmt->num_planes;
 678                 pix_fmt_mp->plane_fmt[0].sizeimage =
 679                                 pix_fmt_mp->width * pix_fmt_mp->height;
 680                 pix_fmt_mp->plane_fmt[0].bytesperline = pix_fmt_mp->width;
 681
 682                 if (pix_fmt_mp->num_planes == 2) {
 683                         pix_fmt_mp->plane_fmt[1].sizeimage =
 684                                 (pix_fmt_mp->width * pix_fmt_mp->height) / 2;
 685                         pix_fmt_mp->plane_fmt[1].bytesperline =
 686                                 pix_fmt_mp->width;
 687                 }
 688         }
 689
 690         for (i = 0; i < pix_fmt_mp->num_planes; i++)
 691                 memset(&(pix_fmt_mp->plane_fmt[i].reserved[0]), 0x0,
 692                            sizeof(pix_fmt_mp->plane_fmt[0].reserved));
 693
 694         pix_fmt_mp->flags = 0;
 695         memset(&pix_fmt_mp->reserved, 0x0, sizeof(pix_fmt_mp->reserved));
 696         return 0;
 697 }
 698
 699 static int vidioc_try_fmt_vid_cap_mplane(struct file *file, void *priv,
 700                                 struct v4l2_format *f)
 701 {
 702         struct mtk_video_fmt *fmt;
 703
 704         fmt = mtk_vdec_find_format(f);
 705         if (!fmt) {
 706                 f->fmt.pix.pixelformat = mtk_video_formats[CAP_FMT_IDX].fourcc;
 707                 fmt = mtk_vdec_find_format(f);
 708         }
 709
 710         return vidioc_try_fmt(f, fmt);
 711 }
 712
 713 static int vidioc_try_fmt_vid_out_mplane(struct file *file, void *priv,
 714                                 struct v4l2_format *f)
 715 {
 716         struct v4l2_pix_format_mplane *pix_fmt_mp = &f->fmt.pix_mp;
 717         struct mtk_video_fmt *fmt;
 718
 719         fmt = mtk_vdec_find_format(f);
 720         if (!fmt) {
 721                 f->fmt.pix.pixelformat = mtk_video_formats[OUT_FMT_IDX].fourcc;
 722                 fmt = mtk_vdec_find_format(f);
 723         }
 724
 725         if (pix_fmt_mp->plane_fmt[0].sizeimage == 0) {
 726                 mtk_v4l2_err("sizeimage of output format must be given");
 727                 return -EINVAL;
 728         }
 729
 730         return vidioc_try_fmt(f, fmt);
 731 }
 732
 733 static int vidioc_vdec_g_selection(struct file *file, void *priv,
 734                         struct v4l2_selection *s)
 735 {
 736         struct mtk_vcodec_ctx *ctx = fh_to_ctx(priv);
 737         struct mtk_q_data *q_data;
 738
 739         if (s->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
 740                 return -EINVAL;
 741
 742         q_data = &ctx->q_data[MTK_Q_DATA_DST];
 743
 744         switch (s->target) {
 745         case V4L2_SEL_TGT_COMPOSE_DEFAULT:
 746                 s->r.left = 0;
 747                 s->r.top = 0;
 748                 s->r.width = ctx->picinfo.pic_w;
 749                 s->r.height = ctx->picinfo.pic_h;
 750                 break;
 751         case V4L2_SEL_TGT_COMPOSE_BOUNDS:
 752                 s->r.left = 0;
 753                 s->r.top = 0;
 754                 s->r.width = ctx->picinfo.buf_w;
 755                 s->r.height = ctx->picinfo.buf_h;
 756                 break;
 757         case V4L2_SEL_TGT_COMPOSE:
 758                 if (vdec_if_get_param(ctx, GET_PARAM_CROP_INFO, &(s->r))) {
 759                         /* set to default value if header info not ready yet*/
 760                         s->r.left = 0;
 761                         s->r.top = 0;
 762                         s->r.width = q_data->visible_width;
 763                         s->r.height = q_data->visible_height;
 764                 }
 765                 break;
 766         default:
 767                 return -EINVAL;
 768         }
 769
 770         if (ctx->state < MTK_STATE_HEADER) {
 771                 /* set to default value if header info not ready yet*/
 772                 s->r.left = 0;
 773                 s->r.top = 0;
 774                 s->r.width = q_data->visible_width;
 775                 s->r.height = q_data->visible_height;
 776                 return 0;
 777         }
 778
 779         return 0;
 780 }
 781
 782 static int vidioc_vdec_s_selection(struct file *file, void *priv,
 783                                 struct v4l2_selection *s)
 784 {
 785         struct mtk_vcodec_ctx *ctx = fh_to_ctx(priv);
 786
 787         if (s->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
 788                 return -EINVAL;
 789
 790         switch (s->target) {
 791         case V4L2_SEL_TGT_COMPOSE:
 792                 s->r.left = 0;
 793                 s->r.top = 0;
 794                 s->r.width = ctx->picinfo.pic_w;
 795                 s->r.height = ctx->picinfo.pic_h;
 796                 break;
 797         default:
 798                 return -EINVAL;
 799         }
 800
 801         return 0;
 802 }
 803
 804 static int vidioc_vdec_s_fmt(struct file *file, void *priv,
 805                              struct v4l2_format *f)
 806 {
 807         struct mtk_vcodec_ctx *ctx = fh_to_ctx(priv);
 808         struct v4l2_pix_format_mplane *pix_mp;
 809         struct mtk_q_data *q_data;
 810         int ret = 0;
 811         struct mtk_video_fmt *fmt;
 812
 813         mtk_v4l2_debug(3, "[%d]", ctx->id);
 814
 815         q_data = mtk_vdec_get_q_data(ctx, f->type);
 816         if (!q_data)
 817                 return -EINVAL;
 818
 819         pix_mp = &f->fmt.pix_mp;
 820         if ((f->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) &&
 821             vb2_is_busy(&ctx->m2m_ctx->out_q_ctx.q)) {
 822                 mtk_v4l2_err("out_q_ctx buffers already requested");
 823                 ret = -EBUSY;
 824         }
 825
 826         if ((f->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) &&
 827             vb2_is_busy(&ctx->m2m_ctx->cap_q_ctx.q)) {
 828                 mtk_v4l2_err("cap_q_ctx buffers already requested");
 829                 ret = -EBUSY;
 830         }
 831
 832         fmt = mtk_vdec_find_format(f);
 833         if (fmt == NULL) {
 834                 if (f->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) {
 835                         f->fmt.pix.pixelformat =
 836                                 mtk_video_formats[OUT_FMT_IDX].fourcc;
 837                         fmt = mtk_vdec_find_format(f);
 838                 } else if (f->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) {
 839                         f->fmt.pix.pixelformat =
 840                                 mtk_video_formats[CAP_FMT_IDX].fourcc;
 841                         fmt = mtk_vdec_find_format(f);
 842                 }
 843         }
 844
 845         q_data->fmt = fmt;
 846         vidioc_try_fmt(f, q_data->fmt);
 847         if (f->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) {
 848                 q_data->sizeimage[0] = pix_mp->plane_fmt[0].sizeimage;
 849                 q_data->coded_width = pix_mp->width;
 850                 q_data->coded_height = pix_mp->height;
 851
 852                 ctx->colorspace = f->fmt.pix_mp.colorspace;
 853                 ctx->ycbcr_enc = f->fmt.pix_mp.ycbcr_enc;
 854                 ctx->quantization = f->fmt.pix_mp.quantization;
 855                 ctx->xfer_func = f->fmt.pix_mp.xfer_func;
 856
 857                 if (ctx->state == MTK_STATE_FREE) {
 858                         ret = vdec_if_init(ctx, q_data->fmt->fourcc);
 859                         if (ret) {
 860                                 mtk_v4l2_err("[%d]: vdec_if_init() fail ret=%d",
 861                                         ctx->id, ret);
 862                                 return -EINVAL;
 863                         }
 864                         ctx->state = MTK_STATE_INIT;
 865                 }
 866         }
 867
 868         return 0;
 869 }
 870
 871 static int vidioc_enum_framesizes(struct file *file, void *priv,
 872                                 struct v4l2_frmsizeenum *fsize)
 873 {
 874         int i = 0;
 875         struct mtk_vcodec_ctx *ctx = fh_to_ctx(priv);
 876
 877         if (fsize->index != 0)
 878                 return -EINVAL;
 879
 880         for (i = 0; i < NUM_SUPPORTED_FRAMESIZE; ++i) {
 881                 if (fsize->pixel_format != mtk_vdec_framesizes[i].fourcc)
 882                         continue;
 883
 884                 fsize->type = V4L2_FRMSIZE_TYPE_STEPWISE;
 885                 fsize->stepwise = mtk_vdec_framesizes[i].stepwise;
 886                 if (!(ctx->dev->dec_capability &
 887                                 VCODEC_CAPABILITY_4K_DISABLED)) {
 888                         mtk_v4l2_debug(3, "4K is enabled");
 889                         fsize->stepwise.max_width =
 890                                         VCODEC_DEC_4K_CODED_WIDTH;
 891                         fsize->stepwise.max_height =
 892                                         VCODEC_DEC_4K_CODED_HEIGHT;
 893                 }
 894                 mtk_v4l2_debug(1, "%x, %d %d %d %d %d %d",
 895                                 ctx->dev->dec_capability,
 896                                 fsize->stepwise.min_width,
 897                                 fsize->stepwise.max_width,
 898                                 fsize->stepwise.step_width,
 899                                 fsize->stepwise.min_height,
 900                                 fsize->stepwise.max_height,
 901                                 fsize->stepwise.step_height);
 902                 return 0;
 903         }
 904
 905         return -EINVAL;
 906 }
 907
 908 static int vidioc_enum_fmt(struct v4l2_fmtdesc *f, bool output_queue)
 909 {
 910         struct mtk_video_fmt *fmt;
 911         int i, j = 0;
 912
 913         for (i = 0; i < NUM_FORMATS; i++) {
 914                 if (output_queue && (mtk_video_formats[i].type != MTK_FMT_DEC))
 915                         continue;
 916                 if (!output_queue &&
 917                         (mtk_video_formats[i].type != MTK_FMT_FRAME))
 918                         continue;
 919
 920                 if (j == f->index)
 921                         break;
 922                 ++j;
 923         }
 924
 925         if (i == NUM_FORMATS)
 926                 return -EINVAL;
 927
 928         fmt = &mtk_video_formats[i];
 929         f->pixelformat = fmt->fourcc;
 930
 931         return 0;
 932 }
 933
 934 static int vidioc_vdec_enum_fmt_vid_cap_mplane(struct file *file, void *pirv,
 935                                                struct v4l2_fmtdesc *f)
 936 {
 937         return vidioc_enum_fmt(f, false);
 938 }
 939
 940 static int vidioc_vdec_enum_fmt_vid_out_mplane(struct file *file, void *priv,
 941                                                struct v4l2_fmtdesc *f)
 942 {
 943         return vidioc_enum_fmt(f, true);
 944 }
 945
 946 static int vidioc_vdec_g_fmt(struct file *file, void *priv,
 947                              struct v4l2_format *f)
 948 {
 949         struct mtk_vcodec_ctx *ctx = fh_to_ctx(priv);
 950         struct v4l2_pix_format_mplane *pix_mp = &f->fmt.pix_mp;
 951         struct vb2_queue *vq;
 952         struct mtk_q_data *q_data;
 953
 954         vq = v4l2_m2m_get_vq(ctx->m2m_ctx, f->type);
 955         if (!vq) {
 956                 mtk_v4l2_err("no vb2 queue for type=%d", f->type);
 957                 return -EINVAL;
 958         }
 959
 960         q_data = mtk_vdec_get_q_data(ctx, f->type);
 961
 962         pix_mp->field = V4L2_FIELD_NONE;
 963         pix_mp->colorspace = ctx->colorspace;
 964         pix_mp->ycbcr_enc = ctx->ycbcr_enc;
 965         pix_mp->quantization = ctx->quantization;
 966         pix_mp->xfer_func = ctx->xfer_func;
 967
 968         if ((f->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) &&
 969             (ctx->state >= MTK_STATE_HEADER)) {
 970                 /* Until STREAMOFF is called on the CAPTURE queue
 971                  * (acknowledging the event), the driver operates as if
 972                  * the resolution hasn't changed yet.
 973                  * So we just return picinfo yet, and update picinfo in
 974                  * stop_streaming hook function
 975                  */
 976                 q_data->sizeimage[0] = ctx->picinfo.y_bs_sz +
 977                                         ctx->picinfo.y_len_sz;
 978                 q_data->sizeimage[1] = ctx->picinfo.c_bs_sz +
 979                                         ctx->picinfo.c_len_sz;
 980                 q_data->bytesperline[0] = ctx->last_decoded_picinfo.buf_w;
 981                 q_data->bytesperline[1] = ctx->last_decoded_picinfo.buf_w;
 982                 q_data->coded_width = ctx->picinfo.buf_w;
 983                 q_data->coded_height = ctx->picinfo.buf_h;
 984
 985                 /*
 986                  * Width and height are set to the dimensions
 987                  * of the movie, the buffer is bigger and
 988                  * further processing stages should crop to this
 989                  * rectangle.
 990                  */
 991                 pix_mp->width = q_data->coded_width;
 992                 pix_mp->height = q_data->coded_height;
 993
 994                 /*
 995                  * Set pixelformat to the format in which mt vcodec
 996                  * outputs the decoded frame
 997                  */
 998                 pix_mp->num_planes = q_data->fmt->num_planes;
 999                 pix_mp->pixelformat = q_data->fmt->fourcc;
1000                 pix_mp->plane_fmt[0].bytesperline = q_data->bytesperline[0];
1001                 pix_mp->plane_fmt[0].sizeimage = q_data->sizeimage[0];
1002                 pix_mp->plane_fmt[1].bytesperline = q_data->bytesperline[1];
1003                 pix_mp->plane_fmt[1].sizeimage = q_data->sizeimage[1];
1004
1005         } else if (f->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) {
1006                 /*
1007                  * This is run on OUTPUT
1008                  * The buffer contains compressed image
1009                  * so width and height have no meaning.
1010                  * Assign value here to pass v4l2-compliance test
1011                  */
1012                 pix_mp->width = q_data->visible_width;
1013                 pix_mp->height = q_data->visible_height;
1014                 pix_mp->plane_fmt[0].bytesperline = q_data->bytesperline[0];
1015                 pix_mp->plane_fmt[0].sizeimage = q_data->sizeimage[0];
1016                 pix_mp->pixelformat = q_data->fmt->fourcc;
1017                 pix_mp->num_planes = q_data->fmt->num_planes;
1018         } else {
1019                 pix_mp->width = q_data->coded_width;
1020                 pix_mp->height = q_data->coded_height;
1021                 pix_mp->num_planes = q_data->fmt->num_planes;
1022                 pix_mp->pixelformat = q_data->fmt->fourcc;
1023                 pix_mp->plane_fmt[0].bytesperline = q_data->bytesperline[0];
1024                 pix_mp->plane_fmt[0].sizeimage = q_data->sizeimage[0];
1025                 pix_mp->plane_fmt[1].bytesperline = q_data->bytesperline[1];
1026                 pix_mp->plane_fmt[1].sizeimage = q_data->sizeimage[1];
1027
1028                 mtk_v4l2_debug(1, "[%d] type=%d state=%d Format information could not be read, not ready yet!",
1029                                 ctx->id, f->type, ctx->state);
1030         }
1031
1032         return 0;
1033 }
1034
1035 static int vb2ops_vdec_queue_setup(struct vb2_queue *vq,
1036                                 unsigned int *nbuffers,
1037                                 unsigned int *nplanes,
1038                                 unsigned int sizes[],
1039                                 struct device *alloc_devs[])
1040 {
1041         struct mtk_vcodec_ctx *ctx = vb2_get_drv_priv(vq);
1042         struct mtk_q_data *q_data;
1043         unsigned int i;
1044
1045         q_data = mtk_vdec_get_q_data(ctx, vq->type);
1046
1047         if (q_data == NULL) {
1048                 mtk_v4l2_err("vq->type=%d err\n", vq->type);
1049                 return -EINVAL;
1050         }
1051
1052         if (*nplanes) {
1053                 for (i = 0; i < *nplanes; i++) {
1054                         if (sizes[i] < q_data->sizeimage[i])
1055                                 return -EINVAL;
1056                 }
1057         } else {
1058                 if (vq->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE)
1059                         *nplanes = 2;
1060                 else
1061                         *nplanes = 1;
1062
1063                 for (i = 0; i < *nplanes; i++)
1064                         sizes[i] = q_data->sizeimage[i];
1065         }
1066
1067         mtk_v4l2_debug(1,
1068                         "[%d]\t type = %d, get %d plane(s), %d buffer(s) of size 0x%x 0x%x ",
1069                         ctx->id, vq->type, *nplanes, *nbuffers,
1070                         sizes[0], sizes[1]);
1071
1072         return 0;
1073 }
1074
1075 static int vb2ops_vdec_buf_prepare(struct vb2_buffer *vb)
1076 {
1077         struct mtk_vcodec_ctx *ctx = vb2_get_drv_priv(vb->vb2_queue);
1078         struct mtk_q_data *q_data;
1079         int i;
1080
1081         mtk_v4l2_debug(3, "[%d] (%d) id=%d",
1082                         ctx->id, vb->vb2_queue->type, vb->index);
1083
1084         q_data = mtk_vdec_get_q_data(ctx, vb->vb2_queue->type);
1085
1086         for (i = 0; i < q_data->fmt->num_planes; i++) {
1087                 if (vb2_plane_size(vb, i) < q_data->sizeimage[i]) {
1088                         mtk_v4l2_err("data will not fit into plane %d (%lu < %d)",
1089                                 i, vb2_plane_size(vb, i),
1090                                 q_data->sizeimage[i]);
1091                 }
1092         }
1093
1094         return 0;
1095 }
1096
1097 static void vb2ops_vdec_buf_queue(struct vb2_buffer *vb)
1098 {
1099         struct vb2_buffer *src_buf;
1100         struct mtk_vcodec_mem src_mem;
1101         bool res_chg = false;
1102         int ret = 0;
1103         unsigned int dpbsize = 1;
1104         struct mtk_vcodec_ctx *ctx = vb2_get_drv_priv(vb->vb2_queue);
1105         struct vb2_v4l2_buffer *vb2_v4l2 = NULL;
1106         struct mtk_video_dec_buf *buf = NULL;
1107
1108         mtk_v4l2_debug(3, "[%d] (%d) id=%d, vb=%p",
1109                         ctx->id, vb->vb2_queue->type,
1110                         vb->index, vb);
1111         /*
1112          * check if this buffer is ready to be used after decode
1113          */
1114         if (vb->vb2_queue->type != V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) {
1115                 vb2_v4l2 = to_vb2_v4l2_buffer(vb);
1116                 buf = container_of(vb2_v4l2, struct mtk_video_dec_buf, vb);
1117                 mutex_lock(&ctx->lock);
1118                 if (buf->used == false) {
1119                         v4l2_m2m_buf_queue(ctx->m2m_ctx, vb2_v4l2);
1120                         buf->queued_in_vb2 = true;
1121                         buf->queued_in_v4l2 = true;
1122                         buf->ready_to_display = false;
1123                 } else {
1124                         buf->queued_in_vb2 = false;
1125                         buf->queued_in_v4l2 = true;
1126                         buf->ready_to_display = false;
1127                 }
1128                 mutex_unlock(&ctx->lock);
1129                 return;
1130         }
1131
1132         v4l2_m2m_buf_queue(ctx->m2m_ctx, to_vb2_v4l2_buffer(vb));
1133
1134         if (ctx->state != MTK_STATE_INIT) {
1135                 mtk_v4l2_debug(3, "[%d] already init driver %d",
1136                                 ctx->id, ctx->state);
1137                 return;
1138         }
1139
1140         src_buf = v4l2_m2m_next_src_buf(ctx->m2m_ctx);
1141         if (!src_buf) {
1142                 mtk_v4l2_err("No src buffer");
1143                 return;
1144         }
1145         vb2_v4l2 = to_vb2_v4l2_buffer(src_buf);
1146         buf = container_of(vb2_v4l2, struct mtk_video_dec_buf, vb);
1147         if (buf->lastframe) {
1148                 /* This shouldn't happen. Just in case. */
1149                 mtk_v4l2_err("Invalid flush buffer.");
1150                 v4l2_m2m_src_buf_remove(ctx->m2m_ctx);
1151                 return;
1152         }
1153
1154         src_mem.va = vb2_plane_vaddr(src_buf, 0);
1155         src_mem.dma_addr = vb2_dma_contig_plane_dma_addr(src_buf, 0);
1156         src_mem.size = (size_t)src_buf->planes[0].bytesused;
1157         mtk_v4l2_debug(2,
1158                         "[%d] buf id=%d va=%p dma=%pad size=%zx",
1159                         ctx->id, src_buf->index,
1160                         src_mem.va, &src_mem.dma_addr,
1161                         src_mem.size);
1162
1163         ret = vdec_if_decode(ctx, &src_mem, NULL, &res_chg);
1164         if (ret || !res_chg) {
1165                 /*
1166                  * fb == NULL menas to parse SPS/PPS header or
1167                  * resolution info in src_mem. Decode can fail
1168                  * if there is no SPS header or picture info
1169                  * in bs
1170                  */
1171
1172                 src_buf = v4l2_m2m_src_buf_remove(ctx->m2m_ctx);
1173                 v4l2_m2m_buf_done(to_vb2_v4l2_buffer(src_buf),
1174                                         VB2_BUF_STATE_DONE);
1175                 mtk_v4l2_debug(ret ? 0 : 1,
1176                                "[%d] vdec_if_decode() src_buf=%d, size=%zu, fail=%d, res_chg=%d",
1177                                ctx->id, src_buf->index,
1178                                src_mem.size, ret, res_chg);
1179                 return;
1180         }
1181
1182         if (vdec_if_get_param(ctx, GET_PARAM_PIC_INFO, &ctx->picinfo)) {
1183                 mtk_v4l2_err("[%d]Error!! Cannot get param : GET_PARAM_PICTURE_INFO ERR",
1184                                 ctx->id);
1185                 return;
1186         }
1187
1188         ctx->last_decoded_picinfo = ctx->picinfo;
1189         ctx->q_data[MTK_Q_DATA_DST].sizeimage[0] =
1190                                                 ctx->picinfo.y_bs_sz +
1191                                                 ctx->picinfo.y_len_sz;
1192         ctx->q_data[MTK_Q_DATA_DST].bytesperline[0] =
1193                                                 ctx->picinfo.buf_w;
1194         ctx->q_data[MTK_Q_DATA_DST].sizeimage[1] =
1195                                                 ctx->picinfo.c_bs_sz +
1196                                                 ctx->picinfo.c_len_sz;
1197         ctx->q_data[MTK_Q_DATA_DST].bytesperline[1] = ctx->picinfo.buf_w;
1198         mtk_v4l2_debug(2, "[%d] vdec_if_init() OK wxh=%dx%d pic wxh=%dx%d sz[0]=0x%x sz[1]=0x%x",
1199                         ctx->id,
1200                         ctx->picinfo.buf_w, ctx->picinfo.buf_h,
1201                         ctx->picinfo.pic_w, ctx->picinfo.pic_h,
1202                         ctx->q_data[MTK_Q_DATA_DST].sizeimage[0],
1203                         ctx->q_data[MTK_Q_DATA_DST].sizeimage[1]);
1204
1205         ret = vdec_if_get_param(ctx, GET_PARAM_DPB_SIZE, &dpbsize);
1206         if (dpbsize == 0)
1207                 mtk_v4l2_err("[%d] GET_PARAM_DPB_SIZE fail=%d", ctx->id, ret);
1208
1209         ctx->dpb_size = dpbsize;
1210         ctx->state = MTK_STATE_HEADER;
1211         mtk_v4l2_debug(1, "[%d] dpbsize=%d", ctx->id, ctx->dpb_size);
1212 }
1213
1214 static void vb2ops_vdec_buf_finish(struct vb2_buffer *vb)
1215 {
1216         struct mtk_vcodec_ctx *ctx = vb2_get_drv_priv(vb->vb2_queue);
1217         struct vb2_v4l2_buffer *vb2_v4l2;
1218         struct mtk_video_dec_buf *buf;
1219
1220         if (vb->vb2_queue->type != V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE)
1221                 return;
1222
1223         vb2_v4l2 = container_of(vb, struct vb2_v4l2_buffer, vb2_buf);
1224         buf = container_of(vb2_v4l2, struct mtk_video_dec_buf, vb);
1225         mutex_lock(&ctx->lock);
1226         buf->queued_in_v4l2 = false;
1227         buf->queued_in_vb2 = false;
1228         mutex_unlock(&ctx->lock);
1229 }
1230
1231 static int vb2ops_vdec_buf_init(struct vb2_buffer *vb)
1232 {
1233         struct vb2_v4l2_buffer *vb2_v4l2 = container_of(vb,
1234                                         struct vb2_v4l2_buffer, vb2_buf);
1235         struct mtk_video_dec_buf *buf = container_of(vb2_v4l2,
1236                                         struct mtk_video_dec_buf, vb);
1237
1238         if (vb->vb2_queue->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) {
1239                 buf->used = false;
1240                 buf->ready_to_display = false;
1241                 buf->queued_in_v4l2 = false;
1242         } else {
1243                 buf->lastframe = false;
1244         }
1245
1246         return 0;
1247 }
1248
1249 static int vb2ops_vdec_start_streaming(struct vb2_queue *q, unsigned int count)
1250 {
1251         struct mtk_vcodec_ctx *ctx = vb2_get_drv_priv(q);
1252
1253         if (ctx->state == MTK_STATE_FLUSH)
1254                 ctx->state = MTK_STATE_HEADER;
1255
1256         return 0;
1257 }
1258
1259 static void vb2ops_vdec_stop_streaming(struct vb2_queue *q)
1260 {
1261         struct vb2_buffer *src_buf = NULL, *dst_buf = NULL;
1262         struct mtk_vcodec_ctx *ctx = vb2_get_drv_priv(q);
1263
1264         mtk_v4l2_debug(3, "[%d] (%d) state=(%x) ctx->decoded_frame_cnt=%d",
1265                         ctx->id, q->type, ctx->state, ctx->decoded_frame_cnt);
1266
1267         if (q->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) {
1268                 while ((src_buf = v4l2_m2m_src_buf_remove(ctx->m2m_ctx))) {
1269                         struct vb2_v4l2_buffer *vb2_v4l2 =
1270                                         to_vb2_v4l2_buffer(src_buf);
1271                         struct mtk_video_dec_buf *buf_info = container_of(
1272                                         vb2_v4l2, struct mtk_video_dec_buf, vb);
1273                         if (!buf_info->lastframe)
1274                                 v4l2_m2m_buf_done(vb2_v4l2,
1275                                                 VB2_BUF_STATE_ERROR);
1276                 }
1277                 return;
1278         }
1279
1280         if (ctx->state >= MTK_STATE_HEADER) {
1281
1282                 /* Until STREAMOFF is called on the CAPTURE queue
1283                  * (acknowledging the event), the driver operates
1284                  * as if the resolution hasn't changed yet, i.e.
1285                  * VIDIOC_G_FMT< etc. return previous resolution.
1286                  * So we update picinfo here
1287                  */
1288                 ctx->picinfo = ctx->last_decoded_picinfo;
1289
1290                 mtk_v4l2_debug(2,
1291                                 "[%d]-> new(%d,%d), old(%d,%d), real(%d,%d)",
1292                                 ctx->id, ctx->last_decoded_picinfo.pic_w,
1293                                 ctx->last_decoded_picinfo.pic_h,
1294                                 ctx->picinfo.pic_w, ctx->picinfo.pic_h,
1295                                 ctx->last_decoded_picinfo.buf_w,
1296                                 ctx->last_decoded_picinfo.buf_h);
1297
1298                 mtk_vdec_flush_decoder(ctx);
1299         }
1300         ctx->state = MTK_STATE_FLUSH;
1301
1302         while ((dst_buf = v4l2_m2m_dst_buf_remove(ctx->m2m_ctx))) {
1303                 vb2_set_plane_payload(dst_buf, 0, 0);
1304                 vb2_set_plane_payload(dst_buf, 1, 0);
1305                 v4l2_m2m_buf_done(to_vb2_v4l2_buffer(dst_buf),
1306                                         VB2_BUF_STATE_ERROR);
1307         }
1308
1309 }
1310
1311 static void m2mops_vdec_device_run(void *priv)
1312 {
1313         struct mtk_vcodec_ctx *ctx = priv;
1314         struct mtk_vcodec_dev *dev = ctx->dev;
1315
1316         queue_work(dev->decode_workqueue, &ctx->decode_work);
1317 }
1318
1319 static int m2mops_vdec_job_ready(void *m2m_priv)
1320 {
1321         struct mtk_vcodec_ctx *ctx = m2m_priv;
1322
1323         mtk_v4l2_debug(3, "[%d]", ctx->id);
1324
1325         if (ctx->state == MTK_STATE_ABORT)
1326                 return 0;
1327
1328         if ((ctx->last_decoded_picinfo.pic_w != ctx->picinfo.pic_w) ||
1329             (ctx->last_decoded_picinfo.pic_h != ctx->picinfo.pic_h))
1330                 return 0;
1331
1332         if (ctx->state != MTK_STATE_HEADER)
1333                 return 0;
1334
1335         return 1;
1336 }
1337
1338 static void m2mops_vdec_job_abort(void *priv)
1339 {
1340         struct mtk_vcodec_ctx *ctx = priv;
1341
1342         ctx->state = MTK_STATE_ABORT;
1343 }
1344
1345 static int mtk_vdec_g_v_ctrl(struct v4l2_ctrl *ctrl)
1346 {
1347         struct mtk_vcodec_ctx *ctx = ctrl_to_ctx(ctrl);
1348         int ret = 0;
1349
1350         switch (ctrl->id) {
1351         case V4L2_CID_MIN_BUFFERS_FOR_CAPTURE:
1352                 if (ctx->state >= MTK_STATE_HEADER) {
1353                         ctrl->val = ctx->dpb_size;
1354                 } else {
1355                         mtk_v4l2_debug(0, "Seqinfo not ready");
1356                         ctrl->val = 0;
1357                 }
1358                 break;
1359         default:
1360                 ret = -EINVAL;
1361         }
1362         return ret;
1363 }
1364
1365 static const struct v4l2_ctrl_ops mtk_vcodec_dec_ctrl_ops = {
1366         .g_volatile_ctrl = mtk_vdec_g_v_ctrl,
1367 };
1368
1369 int mtk_vcodec_dec_ctrls_setup(struct mtk_vcodec_ctx *ctx)
1370 {
1371         struct v4l2_ctrl *ctrl;
1372
1373         v4l2_ctrl_handler_init(&ctx->ctrl_hdl, 1);
1374
1375         ctrl = v4l2_ctrl_new_std(&ctx->ctrl_hdl,
1376                                 &mtk_vcodec_dec_ctrl_ops,
1377                                 V4L2_CID_MIN_BUFFERS_FOR_CAPTURE,
1378                                 0, 32, 1, 1);
1379         ctrl->flags |= V4L2_CTRL_FLAG_VOLATILE;
1380
1381         if (ctx->ctrl_hdl.error) {
1382                 mtk_v4l2_err("Adding control failed %d",
1383                                 ctx->ctrl_hdl.error);
1384                 return ctx->ctrl_hdl.error;
1385         }
1386
1387         v4l2_ctrl_handler_setup(&ctx->ctrl_hdl);
1388         return 0;
1389 }
1390
1391 static void m2mops_vdec_lock(void *m2m_priv)
1392 {
1393         struct mtk_vcodec_ctx *ctx = m2m_priv;
1394
1395         mtk_v4l2_debug(3, "[%d]", ctx->id);
1396         mutex_lock(&ctx->dev->dev_mutex);
1397 }
1398
1399 static void m2mops_vdec_unlock(void *m2m_priv)
1400 {
1401         struct mtk_vcodec_ctx *ctx = m2m_priv;
1402
1403         mtk_v4l2_debug(3, "[%d]", ctx->id);
1404         mutex_unlock(&ctx->dev->dev_mutex);
1405 }
1406
1407 const struct v4l2_m2m_ops mtk_vdec_m2m_ops = {
1408         .device_run     = m2mops_vdec_device_run,
1409         .job_ready      = m2mops_vdec_job_ready,
1410         .job_abort      = m2mops_vdec_job_abort,
1411         .lock           = m2mops_vdec_lock,
1412         .unlock         = m2mops_vdec_unlock,
1413 };
1414
1415 static const struct vb2_ops mtk_vdec_vb2_ops = {
1416         .queue_setup    = vb2ops_vdec_queue_setup,
1417         .buf_prepare    = vb2ops_vdec_buf_prepare,
1418         .buf_queue      = vb2ops_vdec_buf_queue,
1419         .wait_prepare   = vb2_ops_wait_prepare,
1420         .wait_finish    = vb2_ops_wait_finish,
1421         .buf_init       = vb2ops_vdec_buf_init,
1422         .buf_finish     = vb2ops_vdec_buf_finish,
1423         .start_streaming        = vb2ops_vdec_start_streaming,
1424         .stop_streaming = vb2ops_vdec_stop_streaming,
1425 };
1426
1427 const struct v4l2_ioctl_ops mtk_vdec_ioctl_ops = {
1428         .vidioc_streamon        = v4l2_m2m_ioctl_streamon,
1429         .vidioc_streamoff       = v4l2_m2m_ioctl_streamoff,
1430         .vidioc_reqbufs         = v4l2_m2m_ioctl_reqbufs,
1431         .vidioc_querybuf        = v4l2_m2m_ioctl_querybuf,
1432         .vidioc_expbuf          = v4l2_m2m_ioctl_expbuf,
1433
1434         .vidioc_qbuf            = vidioc_vdec_qbuf,
1435         .vidioc_dqbuf           = vidioc_vdec_dqbuf,
1436
1437         .vidioc_try_fmt_vid_cap_mplane  = vidioc_try_fmt_vid_cap_mplane,
1438         .vidioc_try_fmt_vid_out_mplane  = vidioc_try_fmt_vid_out_mplane,
1439
1440         .vidioc_s_fmt_vid_cap_mplane    = vidioc_vdec_s_fmt,
1441         .vidioc_s_fmt_vid_out_mplane    = vidioc_vdec_s_fmt,
1442         .vidioc_g_fmt_vid_cap_mplane    = vidioc_vdec_g_fmt,
1443         .vidioc_g_fmt_vid_out_mplane    = vidioc_vdec_g_fmt,
1444
1445         .vidioc_create_bufs             = v4l2_m2m_ioctl_create_bufs,
1446
1447         .vidioc_enum_fmt_vid_cap_mplane = vidioc_vdec_enum_fmt_vid_cap_mplane,
1448         .vidioc_enum_fmt_vid_out_mplane = vidioc_vdec_enum_fmt_vid_out_mplane,
1449         .vidioc_enum_framesizes = vidioc_enum_framesizes,
1450
1451         .vidioc_querycap                = vidioc_vdec_querycap,
1452         .vidioc_subscribe_event         = vidioc_vdec_subscribe_evt,
1453         .vidioc_unsubscribe_event       = v4l2_event_unsubscribe,
1454         .vidioc_g_selection             = vidioc_vdec_g_selection,
1455         .vidioc_s_selection             = vidioc_vdec_s_selection,
1456
1457         .vidioc_decoder_cmd = vidioc_decoder_cmd,
1458         .vidioc_try_decoder_cmd = vidioc_try_decoder_cmd,
1459 };
1460
1461 int mtk_vcodec_dec_queue_init(void *priv, struct vb2_queue *src_vq,
1462                            struct vb2_queue *dst_vq)
1463 {
1464         struct mtk_vcodec_ctx *ctx = priv;
1465         int ret = 0;
1466
1467         mtk_v4l2_debug(3, "[%d]", ctx->id);
1468
1469         src_vq->type            = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE;
1470         src_vq->io_modes        = VB2_DMABUF | VB2_MMAP;
1471         src_vq->drv_priv        = ctx;
1472         src_vq->buf_struct_size = sizeof(struct mtk_video_dec_buf);
1473         src_vq->ops             = &mtk_vdec_vb2_ops;
1474         src_vq->mem_ops         = &vb2_dma_contig_memops;
1475         src_vq->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_COPY;
1476         src_vq->lock            = &ctx->dev->dev_mutex;
1477         src_vq->dev             = &ctx->dev->plat_dev->dev;
1478
1479         ret = vb2_queue_init(src_vq);
1480         if (ret) {
1481                 mtk_v4l2_err("Failed to initialize videobuf2 queue(output)");
1482                 return ret;
1483         }
1484         dst_vq->type            = V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE;
1485         dst_vq->io_modes        = VB2_DMABUF | VB2_MMAP;
1486         dst_vq->drv_priv        = ctx;
1487         dst_vq->buf_struct_size = sizeof(struct mtk_video_dec_buf);
1488         dst_vq->ops             = &mtk_vdec_vb2_ops;
1489         dst_vq->mem_ops         = &vb2_dma_contig_memops;
1490         dst_vq->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_COPY;
1491         dst_vq->lock            = &ctx->dev->dev_mutex;
1492         dst_vq->dev             = &ctx->dev->plat_dev->dev;
1493
1494         ret = vb2_queue_init(dst_vq);
1495         if (ret) {
1496                 vb2_queue_release(src_vq);
1497                 mtk_v4l2_err("Failed to initialize videobuf2 queue(capture)");
1498         }
1499
1500         return ret;
1501 }