[media] media: videobuf2: Restructure vb2_buffer

Remove v4l2 stuff - v4l2_buf, v4l2_plane - from struct vb2_buffer.

Add new member variables - bytesused, length, offset, userptr, fd,
data_offset - to struct vb2_plane in order to cover all information
of v4l2_plane.
struct vb2_plane {
        <snip>
        unsigned int            bytesused;
        unsigned int            length;
        union {
                unsigned int    offset;
                unsigned long   userptr;
                int             fd;
        } m;
        unsigned int            data_offset;
}

Replace v4l2_buf with new member variables - index, type, memory - which
are common fields for buffer management.
struct vb2_buffer {
        <snip>
        unsigned int            index;
        unsigned int            type;
        unsigned int            memory;
        unsigned int            num_planes;
        struct vb2_plane        planes[VIDEO_MAX_PLANES];
        <snip>
};

v4l2 specific fields - flags, field, timestamp, timecode,
sequence - are moved to vb2_v4l2_buffer in videobuf2-v4l2.c
struct vb2_v4l2_buffer {
        struct vb2_buffer       vb2_buf;

        __u32                   flags;
        __u32                   field;
        struct timeval          timestamp;
        struct v4l2_timecode    timecode;
        __u32                   sequence;
};

Signed-off-by: Junghak Sung <jh1009.sung@samsung.com>
Signed-off-by: Geunyoung Kim <nenggun.kim@samsung.com>
Acked-by: Seung-Woo Kim <sw0312.kim@samsung.com>
Acked-by: Inki Dae <inki.dae@samsung.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>

2 files changed, 15 insertions, 12 deletions

diff --git a/drivers/media/platform/omap3isp/ispvideo.c b/drivers/media/platform/omap3isp/ispvideo.c
index 41bb8df..786cc85 100644
--- a/drivers/media/platform/omap3isp/ispvideo.c
+++ b/drivers/media/platform/omap3isp/ispvideo.c
@@ -342,8 +342,9 @@ static int isp_video_queue_setup(struct vb2_queue *queue,
 
 static int isp_video_buffer_prepare(struct vb2_buffer *buf)
 {
+	struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(buf);
 	struct isp_video_fh *vfh = vb2_get_drv_priv(buf->vb2_queue);
-	struct isp_buffer *buffer = to_isp_buffer(buf);
+	struct isp_buffer *buffer = to_isp_buffer(vbuf);
 	struct isp_video *video = vfh->video;
 	dma_addr_t addr;
 
@@ -363,7 +364,8 @@ static int isp_video_buffer_prepare(struct vb2_buffer *buf)
 		return -EINVAL;
 	}
 
-	vb2_set_plane_payload(&buffer->vb, 0, vfh->format.fmt.pix.sizeimage);
+	vb2_set_plane_payload(&buffer->vb.vb2_buf, 0,
+			      vfh->format.fmt.pix.sizeimage);
 	buffer->dma = addr;
 
 	return 0;
@@ -380,8 +382,9 @@ static int isp_video_buffer_prepare(struct vb2_buffer *buf)
  */
 static void isp_video_buffer_queue(struct vb2_buffer *buf)
 {
+	struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(buf);
 	struct isp_video_fh *vfh = vb2_get_drv_priv(buf->vb2_queue);
-	struct isp_buffer *buffer = to_isp_buffer(buf);
+	struct isp_buffer *buffer = to_isp_buffer(vbuf);
 	struct isp_video *video = vfh->video;
 	struct isp_pipeline *pipe = to_isp_pipeline(&video->video.entity);
 	enum isp_pipeline_state state;
@@ -392,7 +395,7 @@ static void isp_video_buffer_queue(struct vb2_buffer *buf)
 	spin_lock_irqsave(&video->irqlock, flags);
 
 	if (unlikely(video->error)) {
-		vb2_buffer_done(&buffer->vb, VB2_BUF_STATE_ERROR);
+		vb2_buffer_done(&buffer->vb.vb2_buf, VB2_BUF_STATE_ERROR);
 		spin_unlock_irqrestore(&video->irqlock, flags);
 		return;
 	}
@@ -464,7 +467,7 @@ struct isp_buffer *omap3isp_video_buffer_next(struct isp_video *video)
 	list_del(&buf->irqlist);
 	spin_unlock_irqrestore(&video->irqlock, flags);
 
-	v4l2_get_timestamp(&buf->vb.v4l2_buf.timestamp);
+	v4l2_get_timestamp(&buf->vb.timestamp);
 
 	/* Do frame number propagation only if this is the output video node.
 	 * Frame number either comes from the CSI receivers or it gets
@@ -473,15 +476,15 @@ struct isp_buffer *omap3isp_video_buffer_next(struct isp_video *video)
 	 * first, so the input number might lag behind by 1 in some cases.
 	 */
 	if (video == pipe->output && !pipe->do_propagation)
-		buf->vb.v4l2_buf.sequence =
+		buf->vb.sequence =
 			atomic_inc_return(&pipe->frame_number);
 	else
-		buf->vb.v4l2_buf.sequence = atomic_read(&pipe->frame_number);
+		buf->vb.sequence = atomic_read(&pipe->frame_number);
 
 	if (pipe->field != V4L2_FIELD_NONE)
-		buf->vb.v4l2_buf.sequence /= 2;
+		buf->vb.sequence /= 2;
 
-	buf->vb.v4l2_buf.field = pipe->field;
+	buf->vb.field = pipe->field;
 
 	/* Report pipeline errors to userspace on the capture device side. */
 	if (video->type == V4L2_BUF_TYPE_VIDEO_CAPTURE && pipe->error) {
@@ -491,7 +494,7 @@ struct isp_buffer *omap3isp_video_buffer_next(struct isp_video *video)
 		state = VB2_BUF_STATE_DONE;
 	}
 
-	vb2_buffer_done(&buf->vb, state);
+	vb2_buffer_done(&buf->vb.vb2_buf, state);
 
 	spin_lock_irqsave(&video->irqlock, flags);
 
@@ -546,7 +549,7 @@ void omap3isp_video_cancel_stream(struct isp_video *video)
 		buf = list_first_entry(&video->dmaqueue,
 				       struct isp_buffer, irqlist);
 		list_del(&buf->irqlist);
-		vb2_buffer_done(&buf->vb, VB2_BUF_STATE_ERROR);
+		vb2_buffer_done(&buf->vb.vb2_buf, VB2_BUF_STATE_ERROR);
 	}
 
 	video->error = true;
diff --git a/drivers/media/platform/omap3isp/ispvideo.h b/drivers/media/platform/omap3isp/ispvideo.h
index 31c2445..bcf0e0a 100644
--- a/drivers/media/platform/omap3isp/ispvideo.h
+++ b/drivers/media/platform/omap3isp/ispvideo.h
@@ -122,7 +122,7 @@ static inline int isp_pipeline_ready(struct isp_pipeline *pipe)
  * @dma: DMA address
  */
 struct isp_buffer {
-	struct vb2_buffer vb;
+	struct vb2_v4l2_buffer vb;
 	struct list_head irqlist;
 	dma_addr_t dma;
 };