Hi Ming,
thanks for the description update.
Reviewed-by: Mirela Rabulea <mirela.rabulea@xxxxxxx>
Regards,
Mirela
On 10.02.2022 07:46, 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 | 39 ++++++++++++++++++++--
drivers/media/platform/imx-jpeg/mxc-jpeg.h | 1 +
2 files changed, 38 insertions(+), 2 deletions(-)
diff --git a/drivers/media/platform/imx-jpeg/mxc-jpeg.c b/drivers/media/platform/imx-jpeg/mxc-jpeg.c
index 86d37d14cfe2..3c50c572d6b0 100644
--- a/drivers/media/platform/imx-jpeg/mxc-jpeg.c
+++ b/drivers/media/platform/imx-jpeg/mxc-jpeg.c
@@ -991,6 +991,20 @@ 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)
{
@@ -1008,6 +1022,7 @@ 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;
@@ -1034,6 +1049,7 @@ 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;
@@ -1110,6 +1126,8 @@ 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);
+ ctx->stopping = 0;
+ ctx->stopped = 0;
}
static int mxc_jpeg_valid_comp_id(struct device *dev,
@@ -1401,12 +1419,29 @@ 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,
@@ -1842,14 +1877,14 @@ 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;
};
