drivers/staging/media/sunxi/cedrus/cedrus_dec.c

   1 // SPDX-License-Identifier: GPL-2.0
   2 /*
   3  * Cedrus VPU driver
   4  *
   5  * Copyright (C) 2016 Florent Revest <florent.revest@free-electrons.com>
   6  * Copyright (C) 2018 Paul Kocialkowski <paul.kocialkowski@bootlin.com>
   7  * Copyright (C) 2018 Bootlin
   8  *
   9  * Based on the vim2m driver, that is:
  10  *
  11  * Copyright (c) 2009-2010 Samsung Electronics Co., Ltd.
  12  * Pawel Osciak, <pawel@osciak.com>
  13  * Marek Szyprowski, <m.szyprowski@samsung.com>
  14  */
  15
  16 #include <media/v4l2-device.h>
  17 #include <media/v4l2-ioctl.h>
  18 #include <media/v4l2-event.h>
  19 #include <media/v4l2-mem2mem.h>
  20
  21 #include "cedrus.h"
  22 #include "cedrus_dec.h"
  23 #include "cedrus_hw.h"
  24
  25 void cedrus_device_run(void *priv)
  26 {
  27         struct cedrus_ctx *ctx = priv;
  28         struct cedrus_dev *dev = ctx->dev;
  29         struct cedrus_run run = {};
  30         struct media_request *src_req;
  31
  32         run.src = v4l2_m2m_next_src_buf(ctx->fh.m2m_ctx);
  33         run.dst = v4l2_m2m_next_dst_buf(ctx->fh.m2m_ctx);
  34
  35         /* Apply request(s) controls if needed. */
  36         src_req = run.src->vb2_buf.req_obj.req;
  37
  38         if (src_req)
  39                 v4l2_ctrl_request_setup(src_req, &ctx->hdl);
  40
  41         switch (ctx->src_fmt.pixelformat) {
  42         case V4L2_PIX_FMT_MPEG2_SLICE:
  43                 run.mpeg2.slice_params = cedrus_find_control_data(ctx,
  44                         V4L2_CID_MPEG_VIDEO_MPEG2_SLICE_PARAMS);
  45                 run.mpeg2.quantization = cedrus_find_control_data(ctx,
  46                         V4L2_CID_MPEG_VIDEO_MPEG2_QUANTIZATION);
  47                 break;
  48
  49         case V4L2_PIX_FMT_H264_SLICE:
  50                 run.h264.decode_params = cedrus_find_control_data(ctx,
  51                         V4L2_CID_MPEG_VIDEO_H264_DECODE_PARAMS);
  52                 run.h264.pps = cedrus_find_control_data(ctx,
  53                         V4L2_CID_MPEG_VIDEO_H264_PPS);
  54                 run.h264.scaling_matrix = cedrus_find_control_data(ctx,
  55                         V4L2_CID_MPEG_VIDEO_H264_SCALING_MATRIX);
  56                 run.h264.slice_params = cedrus_find_control_data(ctx,
  57                         V4L2_CID_MPEG_VIDEO_H264_SLICE_PARAMS);
  58                 run.h264.sps = cedrus_find_control_data(ctx,
  59                         V4L2_CID_MPEG_VIDEO_H264_SPS);
  60                 break;
  61
  62         case V4L2_PIX_FMT_HEVC_SLICE:
  63                 run.h265.sps = cedrus_find_control_data(ctx,
  64                         V4L2_CID_MPEG_VIDEO_HEVC_SPS);
  65                 run.h265.pps = cedrus_find_control_data(ctx,
  66                         V4L2_CID_MPEG_VIDEO_HEVC_PPS);
  67                 run.h265.slice_params = cedrus_find_control_data(ctx,
  68                         V4L2_CID_MPEG_VIDEO_HEVC_SLICE_PARAMS);
  69                 break;
  70
  71         default:
  72                 break;
  73         }
  74
  75         v4l2_m2m_buf_copy_metadata(run.src, run.dst, true);
  76
  77         cedrus_dst_format_set(dev, &ctx->dst_fmt);
  78
  79         dev->dec_ops[ctx->current_codec]->setup(ctx, &run);
  80
  81         /* Complete request(s) controls if needed. */
  82
  83         if (src_req)
  84                 v4l2_ctrl_request_complete(src_req, &ctx->hdl);
  85
  86         dev->dec_ops[ctx->current_codec]->trigger(ctx);
  87 }