[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>

1 files changed, 15 insertions, 11 deletions

diff --git a/drivers/media/pci/sta2x11/sta2x11_vip.c b/drivers/media/pci/sta2x11/sta2x11_vip.c
index 59b3a36a3639..fc99f33d65e9 100644
--- a/drivers/media/pci/sta2x11/sta2x11_vip.c
+++ b/drivers/media/pci/sta2x11/sta2x11_vip.c
@@ -88,11 +88,11 @@
 
 
 struct vip_buffer {
-	struct vb2_buffer	vb;
+	struct vb2_v4l2_buffer vb;
 	struct list_head	list;
 	dma_addr_t		dma;
 };
-static inline struct vip_buffer *to_vip_buffer(struct vb2_buffer *vb2)
+static inline struct vip_buffer *to_vip_buffer(struct vb2_v4l2_buffer *vb2)
 {
 	return container_of(vb2, struct vip_buffer, vb);
 }
@@ -287,7 +287,8 @@ static int queue_setup(struct vb2_queue *vq, const struct v4l2_format *fmt,
 };
 static int buffer_init(struct vb2_buffer *vb)
 {
-	struct vip_buffer *vip_buf = to_vip_buffer(vb);
+	struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
+	struct vip_buffer *vip_buf = to_vip_buffer(vbuf);
 
 	vip_buf->dma = vb2_dma_contig_plane_dma_addr(vb, 0);
 	INIT_LIST_HEAD(&vip_buf->list);
@@ -296,8 +297,9 @@ static int buffer_init(struct vb2_buffer *vb)
 
 static int buffer_prepare(struct vb2_buffer *vb)
 {
+	struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
 	struct sta2x11_vip *vip = vb2_get_drv_priv(vb->vb2_queue);
-	struct vip_buffer *vip_buf = to_vip_buffer(vb);
+	struct vip_buffer *vip_buf = to_vip_buffer(vbuf);
 	unsigned long size;
 
 	size = vip->format.sizeimage;
@@ -307,14 +309,15 @@ static int buffer_prepare(struct vb2_buffer *vb)
 		return -EINVAL;
 	}
 
-	vb2_set_plane_payload(&vip_buf->vb, 0, size);
+	vb2_set_plane_payload(&vip_buf->vb.vb2_buf, 0, size);
 
 	return 0;
 }
 static void buffer_queue(struct vb2_buffer *vb)
 {
+	struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
 	struct sta2x11_vip *vip = vb2_get_drv_priv(vb->vb2_queue);
-	struct vip_buffer *vip_buf = to_vip_buffer(vb);
+	struct vip_buffer *vip_buf = to_vip_buffer(vbuf);
 
 	spin_lock(&vip->lock);
 	list_add_tail(&vip_buf->list, &vip->buffer_list);
@@ -329,8 +332,9 @@ static void buffer_queue(struct vb2_buffer *vb)
 }
 static void buffer_finish(struct vb2_buffer *vb)
 {
+	struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
 	struct sta2x11_vip *vip = vb2_get_drv_priv(vb->vb2_queue);
-	struct vip_buffer *vip_buf = to_vip_buffer(vb);
+	struct vip_buffer *vip_buf = to_vip_buffer(vbuf);
 
 	/* Buffer handled, remove it from the list */
 	spin_lock(&vip->lock);
@@ -370,7 +374,7 @@ static void stop_streaming(struct vb2_queue *vq)
 	/* Release all active buffers */
 	spin_lock(&vip->lock);
 	list_for_each_entry_safe(vip_buf, node, &vip->buffer_list, list) {
-		vb2_buffer_done(&vip_buf->vb, VB2_BUF_STATE_ERROR);
+		vb2_buffer_done(&vip_buf->vb.vb2_buf, VB2_BUF_STATE_ERROR);
 		list_del(&vip_buf->list);
 	}
 	spin_unlock(&vip->lock);
@@ -813,9 +817,9 @@ static irqreturn_t vip_irq(int irq, struct sta2x11_vip *vip)
 		/* Disable acquisition */
 		reg_write(vip, DVP_CTL, reg_read(vip, DVP_CTL) & ~DVP_CTL_ENA);
 		/* Remove the active buffer from the list */
-		v4l2_get_timestamp(&vip->active->vb.v4l2_buf.timestamp);
-		vip->active->vb.v4l2_buf.sequence = vip->sequence++;
-		vb2_buffer_done(&vip->active->vb, VB2_BUF_STATE_DONE);
+		v4l2_get_timestamp(&vip->active->vb.timestamp);
+		vip->active->vb.sequence = vip->sequence++;
+		vb2_buffer_done(&vip->active->vb.vb2_buf, VB2_BUF_STATE_DONE);
 	}
 
 	return IRQ_HANDLED;