[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, 13 insertions, 9 deletions

diff --git a/drivers/media/pci/tw68/tw68-video.c b/drivers/media/pci/tw68/tw68-video.c
index 8355e55b4e8e..323721439b8e 100644
--- a/drivers/media/pci/tw68/tw68-video.c
+++ b/drivers/media/pci/tw68/tw68-video.c
@@ -423,9 +423,10 @@ static int tw68_queue_setup(struct vb2_queue *q, const struct v4l2_format *fmt,
  */
 static void tw68_buf_queue(struct vb2_buffer *vb)
 {
+        struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
         struct vb2_queue *vq = vb->vb2_queue;
         struct tw68_dev *dev = vb2_get_drv_priv(vq);
-        struct tw68_buf *buf = container_of(vb, struct tw68_buf, vb);
+        struct tw68_buf *buf = container_of(vbuf, struct tw68_buf, vb);
         struct tw68_buf *prev;
         unsigned long flags;
 
@@ -457,9 +458,10 @@ static void tw68_buf_queue(struct vb2_buffer *vb)
  */
 static int tw68_buf_prepare(struct vb2_buffer *vb)
 {
+        struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
         struct vb2_queue *vq = vb->vb2_queue;
         struct tw68_dev *dev = vb2_get_drv_priv(vq);
-        struct tw68_buf *buf = container_of(vb, struct tw68_buf, vb);
+        struct tw68_buf *buf = container_of(vbuf, struct tw68_buf, vb);
         struct sg_table *dma = vb2_dma_sg_plane_desc(vb, 0);
         unsigned size, bpl;
 
@@ -499,9 +501,10 @@ static int tw68_buf_prepare(struct vb2_buffer *vb)
 
 static void tw68_buf_finish(struct vb2_buffer *vb)
 {
+        struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
         struct vb2_queue *vq = vb->vb2_queue;
         struct tw68_dev *dev = vb2_get_drv_priv(vq);
-        struct tw68_buf *buf = container_of(vb, struct tw68_buf, vb);
+        struct tw68_buf *buf = container_of(vbuf, struct tw68_buf, vb);
 
         pci_free_consistent(dev->pci, buf->size, buf->cpu, buf->dma);
 }
@@ -528,7 +531,7 @@ static void tw68_stop_streaming(struct vb2_queue *q)
                         container_of(dev->active.next, struct tw68_buf, list);
 
                 list_del(&buf->list);
-                vb2_buffer_done(&buf->vb, VB2_BUF_STATE_ERROR);
+                vb2_buffer_done(&buf->vb.vb2_buf, VB2_BUF_STATE_ERROR);
         }
 }
 
@@ -1012,10 +1015,10 @@ void tw68_irq_video_done(struct tw68_dev *dev, unsigned long status)
                 buf = list_entry(dev->active.next, struct tw68_buf, list);
                 list_del(&buf->list);
                 spin_unlock(&dev->slock);
-                v4l2_get_timestamp(&buf->vb.v4l2_buf.timestamp);
-                buf->vb.v4l2_buf.field = dev->field;
-                buf->vb.v4l2_buf.sequence = dev->seqnr++;
-                vb2_buffer_done(&buf->vb, VB2_BUF_STATE_DONE);
+                v4l2_get_timestamp(&buf->vb.timestamp);
+                buf->vb.field = dev->field;
+                buf->vb.sequence = dev->seqnr++;
+                vb2_buffer_done(&buf->vb.vb2_buf, VB2_BUF_STATE_DONE);
                 status &= ~(TW68_DMAPI);
                 if (0 == status)
                         return;
diff --git a/drivers/media/pci/tw68/tw68.h b/drivers/media/pci/tw68/tw68.h
index ef51e4d48866..6c7dcb300f34 100644
--- a/drivers/media/pci/tw68/tw68.h
+++ b/drivers/media/pci/tw68/tw68.h
@@ -36,6 +36,7 @@
 #include <media/v4l2-ioctl.h>
 #include <media/v4l2-ctrls.h>
 #include <media/v4l2-device.h>
+#include <media/videobuf2-v4l2.h>
 #include <media/videobuf2-dma-sg.h>
 
 #include "tw68-reg.h"
@@ -118,7 +119,7 @@ struct tw68_dev;	/* forward delclaration */
 
 /* buffer for one video/vbi/ts frame */
 struct tw68_buf {
-        struct vb2_buffer vb;
+        struct vb2_v4l2_buffer vb;
         struct list_head list;
 
         unsigned int   size;