[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/platform/soc_camera/atmel-isi.c b/drivers/media/platform/soc_camera/atmel-isi.c
index 45e304a3dd85..1036f77ab28a 100644
--- a/drivers/media/platform/soc_camera/atmel-isi.c
+++ b/drivers/media/platform/soc_camera/atmel-isi.c
@@ -60,7 +60,7 @@ struct isi_dma_desc {
 
 /* Frame buffer data */
 struct frame_buffer {
-	struct vb2_buffer vb;
+	struct vb2_v4l2_buffer vb;
 	struct isi_dma_desc *p_dma_desc;
 	struct list_head list;
 };
@@ -161,13 +161,13 @@ static bool is_supported(struct soc_camera_device *icd,
 static irqreturn_t atmel_isi_handle_streaming(struct atmel_isi *isi)
 {
 	if (isi->active) {
-		struct vb2_buffer *vb = &isi->active->vb;
+		struct vb2_v4l2_buffer *vbuf = &isi->active->vb;
 		struct frame_buffer *buf = isi->active;
 
 		list_del_init(&buf->list);
-		v4l2_get_timestamp(&vb->v4l2_buf.timestamp);
-		vb->v4l2_buf.sequence = isi->sequence++;
-		vb2_buffer_done(vb, VB2_BUF_STATE_DONE);
+		v4l2_get_timestamp(&vbuf->timestamp);
+		vbuf->sequence = isi->sequence++;
+		vb2_buffer_done(&vbuf->vb2_buf, VB2_BUF_STATE_DONE);
 	}
 
 	if (list_empty(&isi->video_buffer_list)) {
@@ -277,7 +277,8 @@ static int queue_setup(struct vb2_queue *vq, const struct v4l2_format *fmt,
 
 static int buffer_init(struct vb2_buffer *vb)
 {
-	struct frame_buffer *buf = container_of(vb, struct frame_buffer, vb);
+	struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
+	struct frame_buffer *buf = container_of(vbuf, struct frame_buffer, vb);
 
 	buf->p_dma_desc = NULL;
 	INIT_LIST_HEAD(&buf->list);
@@ -287,8 +288,9 @@ 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 soc_camera_device *icd = soc_camera_from_vb2q(vb->vb2_queue);
-	struct frame_buffer *buf = container_of(vb, struct frame_buffer, vb);
+	struct frame_buffer *buf = container_of(vbuf, struct frame_buffer, vb);
 	struct soc_camera_host *ici = to_soc_camera_host(icd->parent);
 	struct atmel_isi *isi = ici->priv;
 	unsigned long size;
@@ -302,7 +304,7 @@ static int buffer_prepare(struct vb2_buffer *vb)
 		return -EINVAL;
 	}
 
-	vb2_set_plane_payload(&buf->vb, 0, size);
+	vb2_set_plane_payload(vb, 0, size);
 
 	if (!buf->p_dma_desc) {
 		if (list_empty(&isi->dma_desc_head)) {
@@ -329,10 +331,11 @@ static int buffer_prepare(struct vb2_buffer *vb)
 
 static void buffer_cleanup(struct vb2_buffer *vb)
 {
+	struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
 	struct soc_camera_device *icd = soc_camera_from_vb2q(vb->vb2_queue);
 	struct soc_camera_host *ici = to_soc_camera_host(icd->parent);
 	struct atmel_isi *isi = ici->priv;
-	struct frame_buffer *buf = container_of(vb, struct frame_buffer, vb);
+	struct frame_buffer *buf = container_of(vbuf, struct frame_buffer, vb);
 
 	/* This descriptor is available now and we add to head list */
 	if (buf->p_dma_desc)
@@ -370,10 +373,11 @@ static void start_dma(struct atmel_isi *isi, struct frame_buffer *buffer)
 
 static void buffer_queue(struct vb2_buffer *vb)
 {
+	struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
 	struct soc_camera_device *icd = soc_camera_from_vb2q(vb->vb2_queue);
 	struct soc_camera_host *ici = to_soc_camera_host(icd->parent);
 	struct atmel_isi *isi = ici->priv;
-	struct frame_buffer *buf = container_of(vb, struct frame_buffer, vb);
+	struct frame_buffer *buf = container_of(vbuf, struct frame_buffer, vb);
 	unsigned long flags = 0;
 
 	spin_lock_irqsave(&isi->lock, flags);
@@ -435,7 +439,7 @@ static void stop_streaming(struct vb2_queue *vq)
 	/* Release all active buffers */
 	list_for_each_entry_safe(buf, node, &isi->video_buffer_list, list) {
 		list_del_init(&buf->list);
-		vb2_buffer_done(&buf->vb, VB2_BUF_STATE_ERROR);
+		vb2_buffer_done(&buf->vb.vb2_buf, VB2_BUF_STATE_ERROR);
 	}
 	spin_unlock_irq(&isi->lock);