target/linux/bcm27xx/patches-5.15/950-0504-staging-bcm2835-codec-Do-not-send-buffers-to-the-VPU.patch

   1 From def9aa1e5f2e29d29b493c22fd98e1c0af018d99 Mon Sep 17 00:00:00 2001
   2 From: Dave Stevenson <dave.stevenson@raspberrypi.com>
   3 Date: Wed, 15 Sep 2021 17:44:19 +0100
   4 Subject: [PATCH] staging/bcm2835-codec: Do not send buffers to the VPU
   5  unless streaming
   6
   7 With video decode we now enable both input and output ports on
   8 the component. This means that buffers will get passed to the VPU
   9 earlier than desired if they are queued befoer STREAMON.
  10
  11 Check that the queue is streaming before sending buffers to the VPU.
  12
  13 Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
  14 ---
  15  .../bcm2835-codec/bcm2835-v4l2-codec.c        | 64 +++++++++++--------
  16  1 file changed, 38 insertions(+), 26 deletions(-)
  17
  18 --- a/drivers/staging/vc04_services/bcm2835-codec/bcm2835-v4l2-codec.c
  19 +++ b/drivers/staging/vc04_services/bcm2835-codec/bcm2835-v4l2-codec.c
  20 @@ -1244,35 +1244,47 @@ static void device_run(void *priv)
  21
  22         v4l2_dbg(3, debug, &ctx->dev->v4l2_dev, "%s: off we go\n", __func__);
  23
  24 -       src_buf = v4l2_m2m_buf_remove(&ctx->fh.m2m_ctx->out_q_ctx);
  25 -       if (src_buf) {
  26 -               m2m = container_of(src_buf, struct v4l2_m2m_buffer, vb);
  27 -               src_m2m_buf = container_of(m2m, struct m2m_mmal_buffer, m2m);
  28 -               vb2_to_mmal_buffer(src_m2m_buf, src_buf);
  29 -
  30 -               ret = vchiq_mmal_submit_buffer(dev->instance,
  31 -                                              &ctx->component->input[0],
  32 -                                              &src_m2m_buf->mmal);
  33 -               v4l2_dbg(3, debug, &ctx->dev->v4l2_dev, "%s: Submitted ip buffer len %lu, pts %llu, flags %04x\n",
  34 -                        __func__, src_m2m_buf->mmal.length,
  35 -                        src_m2m_buf->mmal.pts, src_m2m_buf->mmal.mmal_flags);
  36 -               if (ret)
  37 -                       v4l2_err(&ctx->dev->v4l2_dev, "%s: Failed submitting ip buffer\n",
  38 -                                __func__);
  39 +       if (ctx->fh.m2m_ctx->out_q_ctx.q.streaming) {
  40 +               src_buf = v4l2_m2m_buf_remove(&ctx->fh.m2m_ctx->out_q_ctx);
  41 +               if (src_buf) {
  42 +                       m2m = container_of(src_buf, struct v4l2_m2m_buffer, vb);
  43 +                       src_m2m_buf = container_of(m2m, struct m2m_mmal_buffer,
  44 +                                                  m2m);
  45 +                       vb2_to_mmal_buffer(src_m2m_buf, src_buf);
  46 +
  47 +                       ret = vchiq_mmal_submit_buffer(dev->instance,
  48 +                                                      &ctx->component->input[0],
  49 +                                                      &src_m2m_buf->mmal);
  50 +                       v4l2_dbg(3, debug, &ctx->dev->v4l2_dev,
  51 +                                "%s: Submitted ip buffer len %lu, pts %llu, flags %04x\n",
  52 +                                __func__, src_m2m_buf->mmal.length,
  53 +                                src_m2m_buf->mmal.pts,
  54 +                                src_m2m_buf->mmal.mmal_flags);
  55 +                       if (ret)
  56 +                               v4l2_err(&ctx->dev->v4l2_dev,
  57 +                                        "%s: Failed submitting ip buffer\n",
  58 +                                        __func__);
  59 +               }
  60         }
  61
  62 -       dst_buf = v4l2_m2m_buf_remove(&ctx->fh.m2m_ctx->cap_q_ctx);
  63 -       if (dst_buf) {
  64 -               m2m = container_of(dst_buf, struct v4l2_m2m_buffer, vb);
  65 -               dst_m2m_buf = container_of(m2m, struct m2m_mmal_buffer, m2m);
  66 -               vb2_to_mmal_buffer(dst_m2m_buf, dst_buf);
  67 -
  68 -               ret = vchiq_mmal_submit_buffer(dev->instance,
  69 -                                              &ctx->component->output[0],
  70 -                                              &dst_m2m_buf->mmal);
  71 -               if (ret)
  72 -                       v4l2_err(&ctx->dev->v4l2_dev, "%s: Failed submitting op buffer\n",
  73 -                                __func__);
  74 +       if (ctx->fh.m2m_ctx->cap_q_ctx.q.streaming) {
  75 +               dst_buf = v4l2_m2m_buf_remove(&ctx->fh.m2m_ctx->cap_q_ctx);
  76 +               if (dst_buf) {
  77 +                       m2m = container_of(dst_buf, struct v4l2_m2m_buffer, vb);
  78 +                       dst_m2m_buf = container_of(m2m, struct m2m_mmal_buffer,
  79 +                                                  m2m);
  80 +                       vb2_to_mmal_buffer(dst_m2m_buf, dst_buf);
  81 +
  82 +                       v4l2_dbg(3, debug, &ctx->dev->v4l2_dev,
  83 +                                "%s: Submitted op buffer\n", __func__);
  84 +                       ret = vchiq_mmal_submit_buffer(dev->instance,
  85 +                                                      &ctx->component->output[0],
  86 +                                                      &dst_m2m_buf->mmal);
  87 +                       if (ret)
  88 +                               v4l2_err(&ctx->dev->v4l2_dev,
  89 +                                        "%s: Failed submitting op buffer\n",
  90 +                                        __func__);
  91 +               }
  92         }
  93
  94         v4l2_dbg(3, debug, &ctx->dev->v4l2_dev, "%s: Submitted src %p, dst %p\n",