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Signed-off-by: Ming Qian Reviewed-by: Mirela Rabulea --- drivers/media/platform/imx-jpeg/mxc-jpeg.c | 45 +++++++++++++++++++++- drivers/media/platform/imx-jpeg/mxc-jpeg.h | 1 + 2 files changed, 44 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..22572a1ae7a4 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 +1022,10 @@ 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); + if (!mutex_lock_interruptible(&ctx->mxc_jpeg->lock)) { + mxc_jpeg_set_last_buffer_dequeued(ctx); + mutex_unlock(&ctx->mxc_jpeg->lock); + } } else { /* will send EOS later*/ ctx->stopping = 1; @@ -1034,6 +1052,10 @@ 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); + if (!mutex_lock_interruptible(&ctx->mxc_jpeg->lock)) { + mxc_jpeg_set_last_buffer_dequeued(ctx); + mutex_unlock(&ctx->mxc_jpeg->lock); + } } else { /* will send EOS later*/ ctx->stopping = 1; @@ -1110,6 +1132,8 @@ 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 +1425,29 @@ 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 +1883,14 @@ 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; };