What changed in v3?
The v2 is already part of a PR, so if the changes are just of the cleanup
type, then I prefer to have a diff on top of the v2. Otherwise I need to
respin the PR.
Regards,
Hans
On 2/22/22 09:41, Ming Qian wrote:
> The V4L2_EVENT_EOS event is a deprecated behavior,
> the V4L2_BUF_FLAG_LAST buffer flag should be used instead.
>
> Signed-off-by: Ming Qian <ming.qian@xxxxxxx>
> Reviewed-by: Mirela Rabulea <mirela.rabulea@xxxxxxx>
> ---
> drivers/media/platform/imx-jpeg/mxc-jpeg.c | 41 ++++++++++++++++++++--
> drivers/media/platform/imx-jpeg/mxc-jpeg.h | 1 +
> 2 files changed, 40 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/media/platform/imx-jpeg/mxc-jpeg.c b/drivers/media/platform/imx-jpeg/mxc-jpeg.c
> index ec5a326affd6..1de0400750aa 100644
> --- a/drivers/media/platform/imx-jpeg/mxc-jpeg.c
> +++ b/drivers/media/platform/imx-jpeg/mxc-jpeg.c
> @@ -997,6 +997,20 @@ static void mxc_jpeg_device_run(void *priv)
> spin_unlock_irqrestore(&ctx->mxc_jpeg->hw_lock, flags);
> }
>
> +static void mxc_jpeg_set_last_buffer_dequeued(struct mxc_jpeg_ctx *ctx)
> +{
> + struct vb2_queue *q;
> +
> + ctx->stopped = 1;
> + q = v4l2_m2m_get_dst_vq(ctx->fh.m2m_ctx);
> + if (!list_empty(&q->done_list))
> + return;
> +
> + q->last_buffer_dequeued = true;
> + wake_up(&q->done_wq);
> + ctx->stopped = 0;
> +}
> +
> static int mxc_jpeg_decoder_cmd(struct file *file, void *priv,
> struct v4l2_decoder_cmd *cmd)
> {
> @@ -1014,6 +1028,7 @@ static int mxc_jpeg_decoder_cmd(struct file *file, void *priv,
> if (v4l2_m2m_num_src_bufs_ready(fh->m2m_ctx) == 0) {
> /* No more src bufs, notify app EOS */
> notify_eos(ctx);
> + mxc_jpeg_set_last_buffer_dequeued(ctx);
> } else {
> /* will send EOS later*/
> ctx->stopping = 1;
> @@ -1040,6 +1055,7 @@ static int mxc_jpeg_encoder_cmd(struct file *file, void *priv,
> if (v4l2_m2m_num_src_bufs_ready(fh->m2m_ctx) == 0) {
> /* No more src bufs, notify app EOS */
> notify_eos(ctx);
> + mxc_jpeg_set_last_buffer_dequeued(ctx);
> } else {
> /* will send EOS later*/
> ctx->stopping = 1;
> @@ -1116,6 +1132,10 @@ static void mxc_jpeg_stop_streaming(struct vb2_queue *q)
> v4l2_m2m_buf_done(vbuf, VB2_BUF_STATE_ERROR);
> }
> pm_runtime_put_sync(&ctx->mxc_jpeg->pdev->dev);
> + if (V4L2_TYPE_IS_OUTPUT(q->type)) {
> + ctx->stopping = 0;
> + ctx->stopped = 0;
> + }
> }
>
> static int mxc_jpeg_valid_comp_id(struct device *dev,
> @@ -1407,12 +1427,29 @@ static int mxc_jpeg_buf_prepare(struct vb2_buffer *vb)
> return 0;
> }
>
> +static void mxc_jpeg_buf_finish(struct vb2_buffer *vb)
> +{
> + struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
> + struct mxc_jpeg_ctx *ctx = vb2_get_drv_priv(vb->vb2_queue);
> + struct vb2_queue *q = vb->vb2_queue;
> +
> + if (V4L2_TYPE_IS_OUTPUT(vb->type))
> + return;
> + if (!ctx->stopped)
> + return;
> + if (list_empty(&q->done_list)) {
> + vbuf->flags |= V4L2_BUF_FLAG_LAST;
> + ctx->stopped = 0;
> + }
> +}
> +
> static const struct vb2_ops mxc_jpeg_qops = {
> .queue_setup = mxc_jpeg_queue_setup,
> .wait_prepare = vb2_ops_wait_prepare,
> .wait_finish = vb2_ops_wait_finish,
> .buf_out_validate = mxc_jpeg_buf_out_validate,
> .buf_prepare = mxc_jpeg_buf_prepare,
> + .buf_finish = mxc_jpeg_buf_finish,
> .start_streaming = mxc_jpeg_start_streaming,
> .stop_streaming = mxc_jpeg_stop_streaming,
> .buf_queue = mxc_jpeg_buf_queue,
> @@ -1848,14 +1885,14 @@ static int mxc_jpeg_dqbuf(struct file *file, void *priv,
> int ret;
>
> dev_dbg(dev, "DQBUF type=%d, index=%d", buf->type, buf->index);
> - if (ctx->stopping == 1 && num_src_ready == 0) {
> + if (ctx->stopping == 1 && num_src_ready == 0) {
> /* No more src bufs, notify app EOS */
> notify_eos(ctx);
> ctx->stopping = 0;
> + mxc_jpeg_set_last_buffer_dequeued(ctx);
> }
>
> ret = v4l2_m2m_dqbuf(file, fh->m2m_ctx, buf);
> -
> return ret;
> }
>
> diff --git a/drivers/media/platform/imx-jpeg/mxc-jpeg.h b/drivers/media/platform/imx-jpeg/mxc-jpeg.h
> index 9fb2a5aaa941..f53f004ba851 100644
> --- a/drivers/media/platform/imx-jpeg/mxc-jpeg.h
> +++ b/drivers/media/platform/imx-jpeg/mxc-jpeg.h
> @@ -91,6 +91,7 @@ struct mxc_jpeg_ctx {
> struct v4l2_fh fh;
> enum mxc_jpeg_enc_state enc_state;
> unsigned int stopping;
> + unsigned int stopped;
> unsigned int slot;
> };
>
