On 3/6/19 10:13 PM, Dafna Hirschfeld wrote:
> Add stateless decoder instance field to the dev struct and
> register another node for the statelsess decoder.
> The stateless API for the node will be implemented in further patches.
>
> Signed-off-by: Dafna Hirschfeld <[email protected]>
> ---
> drivers/media/platform/vicodec/vicodec-core.c | 46 +++++++++++++++++--
> 1 file changed, 42 insertions(+), 4 deletions(-)
>
> diff --git a/drivers/media/platform/vicodec/vicodec-core.c
> b/drivers/media/platform/vicodec/vicodec-core.c
> index 6c9a41838d31..7733b22247b6 100644
> --- a/drivers/media/platform/vicodec/vicodec-core.c
> +++ b/drivers/media/platform/vicodec/vicodec-core.c
> @@ -104,6 +104,7 @@ struct vicodec_dev {
> struct v4l2_device v4l2_dev;
> struct vicodec_dev_instance stateful_enc;
> struct vicodec_dev_instance stateful_dec;
> + struct vicodec_dev_instance stateless_dec;
> #ifdef CONFIG_MEDIA_CONTROLLER
> struct media_device mdev;
> #endif
> @@ -114,6 +115,7 @@ struct vicodec_ctx {
> struct v4l2_fh fh;
> struct vicodec_dev *dev;
> bool is_enc;
> + bool is_stateless;
> spinlock_t *lock;
>
> struct v4l2_ctrl_handler hdl;
> @@ -373,6 +375,9 @@ static void device_run(void *priv)
>
> if (ctx->is_enc)
> v4l2_m2m_job_finish(dev->stateful_enc.m2m_dev, ctx->fh.m2m_ctx);
> + else if (ctx->is_stateless)
> + v4l2_m2m_job_finish(dev->stateless_dec.m2m_dev,
> + ctx->fh.m2m_ctx);
> else
> v4l2_m2m_job_finish(dev->stateful_dec.m2m_dev, ctx->fh.m2m_ctx);
> }
> @@ -1494,8 +1499,14 @@ static int queue_init(void *priv, struct vb2_queue
> *src_vq,
> src_vq->ops = &vicodec_qops;
> src_vq->mem_ops = &vb2_vmalloc_memops;
> src_vq->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_COPY;
> - src_vq->lock = ctx->is_enc ? &ctx->dev->stateful_enc.mutex :
> - &ctx->dev->stateful_dec.mutex;
> + if (ctx->is_enc)
> + src_vq->lock = &ctx->dev->stateful_enc.mutex;
> + else if (ctx->is_stateless)
> + src_vq->lock = &ctx->dev->stateless_dec.mutex;
> + else
> + src_vq->lock = &ctx->dev->stateful_dec.mutex;
> + src_vq->supports_requests = ctx->is_stateless;
> + src_vq->requires_requests = ctx->is_stateless;
> ret = vb2_queue_init(src_vq);
> if (ret)
> return ret;
> @@ -1564,6 +1575,8 @@ static int vicodec_open(struct file *file)
>
> if (vfd == &dev->stateful_enc.vfd)
> ctx->is_enc = true;
> + else if (vfd == &dev->stateless_dec.vfd)
> + ctx->is_stateless = true;
>
> v4l2_fh_init(&ctx->fh, video_devdata(file));
> file->private_data = &ctx->fh;
> @@ -1576,6 +1589,8 @@ static int vicodec_open(struct file *file)
> 1, 31, 1, 20);
> v4l2_ctrl_new_std(hdl, &vicodec_ctrl_ops, V4L2_CID_FWHT_P_FRAME_QP,
> 1, 31, 1, 20);
> + if (ctx->is_stateless)
> + v4l2_ctrl_new_custom(hdl, &vicodec_ctrl_stateless_state, NULL);
> if (hdl->error) {
> rc = hdl->error;
> v4l2_ctrl_handler_free(hdl);
> @@ -1615,6 +1630,10 @@ static int vicodec_open(struct file *file)
> ctx->fh.m2m_ctx = v4l2_m2m_ctx_init(dev->stateful_enc.m2m_dev,
> ctx, &queue_init);
> ctx->lock = &dev->stateful_enc.lock;
> + } else if (ctx->is_stateless) {
> + ctx->fh.m2m_ctx = v4l2_m2m_ctx_init(dev->stateless_dec.m2m_dev,
> + ctx, &queue_init);
> + ctx->lock = &dev->stateless_dec.lock;
> } else {
> ctx->fh.m2m_ctx = v4l2_m2m_ctx_init(dev->stateful_dec.m2m_dev,
> ctx, &queue_init);
> @@ -1751,6 +1770,10 @@ static int vicodec_probe(struct platform_device *pdev)
> "stateful-decoder", false))
> goto unreg_sf_enc;
>
> + if (register_instance(dev, &dev->stateless_dec,
> + "videdev-stateless-dec", false))
Typo: this should be "stateless-decoder".
I'll make this change when I prepare the pull request.
Regards,
Hans
> + goto unreg_sf_dec;
> +
> #ifdef CONFIG_MEDIA_CONTROLLER
> ret = v4l2_m2m_register_media_controller(dev->stateful_enc.m2m_dev,
> &dev->stateful_enc.vfd,
> @@ -1768,23 +1791,36 @@ static int vicodec_probe(struct platform_device *pdev)
> goto unreg_m2m_sf_enc_mc;
> }
>
> + ret = v4l2_m2m_register_media_controller(dev->stateless_dec.m2m_dev,
> + &dev->stateless_dec.vfd,
> +
> MEDIA_ENT_F_PROC_VIDEO_DECODER);
> + if (ret) {
> + v4l2_err(&dev->v4l2_dev, "Failed to init mem2mem media
> controller for stateless dec\n");
> + goto unreg_m2m_sf_dec_mc;
> + }
> +
> ret = media_device_register(&dev->mdev);
> if (ret) {
> v4l2_err(&dev->v4l2_dev, "Failed to register mem2mem media
> device\n");
> - goto unreg_m2m_sf_dec_mc;
> + goto unreg_m2m_sl_dec_mc;
> }
> #endif
> return 0;
>
> #ifdef CONFIG_MEDIA_CONTROLLER
> +unreg_m2m_sl_dec_mc:
> + v4l2_m2m_unregister_media_controller(dev->stateless_dec.m2m_dev);
> unreg_m2m_sf_dec_mc:
> v4l2_m2m_unregister_media_controller(dev->stateful_dec.m2m_dev);
> unreg_m2m_sf_enc_mc:
> v4l2_m2m_unregister_media_controller(dev->stateful_enc.m2m_dev);
> unreg_m2m:
> + video_unregister_device(&dev->stateless_dec.vfd);
> + v4l2_m2m_release(dev->stateless_dec.m2m_dev);
> +#endif
> +unreg_sf_dec:
> video_unregister_device(&dev->stateful_dec.vfd);
> v4l2_m2m_release(dev->stateful_dec.m2m_dev);
> -#endif
> unreg_sf_enc:
> video_unregister_device(&dev->stateful_enc.vfd);
> v4l2_m2m_release(dev->stateful_enc.m2m_dev);
> @@ -1804,6 +1840,7 @@ static int vicodec_remove(struct platform_device *pdev)
> media_device_unregister(&dev->mdev);
> v4l2_m2m_unregister_media_controller(dev->stateful_enc.m2m_dev);
> v4l2_m2m_unregister_media_controller(dev->stateful_dec.m2m_dev);
> + v4l2_m2m_unregister_media_controller(dev->stateless_dec.m2m_dev);
> media_device_cleanup(&dev->mdev);
> #endif
>
> @@ -1811,6 +1848,7 @@ static int vicodec_remove(struct platform_device *pdev)
> v4l2_m2m_release(dev->stateful_dec.m2m_dev);
> video_unregister_device(&dev->stateful_enc.vfd);
> video_unregister_device(&dev->stateful_dec.vfd);
> + video_unregister_device(&dev->stateless_dec.vfd);
> v4l2_device_unregister(&dev->v4l2_dev);
>
> return 0;
>
