1 files changed, 45 insertions, 3 deletions

diff --git a/include/media/v4l2-mem2mem.h b/include/media/v4l2-mem2mem.h
index 16ac4733e80..12ea5a6a433 100644
--- a/include/media/v4l2-mem2mem.h
+++ b/include/media/v4l2-mem2mem.h
@@ -60,9 +60,13 @@ struct v4l2_m2m_queue_ctx {
 	struct list_head	rdy_queue;
 	spinlock_t		rdy_spinlock;
 	u8			num_rdy;
+	bool			buffered;
 };
 
 struct v4l2_m2m_ctx {
+	/* optional cap/out vb2 queues lock */
+	struct mutex			*q_lock;
+
 /* private: internal use only */
 	struct v4l2_m2m_dev		*m2m_dev;
 
@@ -110,6 +114,11 @@ int v4l2_m2m_qbuf(struct file *file, struct v4l2_m2m_ctx *m2m_ctx,
 		  struct v4l2_buffer *buf);
 int v4l2_m2m_dqbuf(struct file *file, struct v4l2_m2m_ctx *m2m_ctx,
 		   struct v4l2_buffer *buf);
+int v4l2_m2m_create_bufs(struct file *file, struct v4l2_m2m_ctx *m2m_ctx,
+			 struct v4l2_create_buffers *create);
+
+int v4l2_m2m_expbuf(struct file *file, struct v4l2_m2m_ctx *m2m_ctx,
+		   struct v4l2_exportbuffer *eb);
 
 int v4l2_m2m_streamon(struct file *file, struct v4l2_m2m_ctx *m2m_ctx,
 		      enum v4l2_buf_type type);
@@ -122,13 +131,25 @@ unsigned int v4l2_m2m_poll(struct file *file, struct v4l2_m2m_ctx *m2m_ctx,
 int v4l2_m2m_mmap(struct file *file, struct v4l2_m2m_ctx *m2m_ctx,
 		  struct vm_area_struct *vma);
 
-struct v4l2_m2m_dev *v4l2_m2m_init(struct v4l2_m2m_ops *m2m_ops);
+struct v4l2_m2m_dev *v4l2_m2m_init(const struct v4l2_m2m_ops *m2m_ops);
 void v4l2_m2m_release(struct v4l2_m2m_dev *m2m_dev);
 
 struct v4l2_m2m_ctx *v4l2_m2m_ctx_init(struct v4l2_m2m_dev *m2m_dev,
 		void *drv_priv,
 		int (*queue_init)(void *priv, struct vb2_queue *src_vq, struct vb2_queue *dst_vq));
 
+static inline void v4l2_m2m_set_src_buffered(struct v4l2_m2m_ctx *m2m_ctx,
+					     bool buffered)
+{
+	m2m_ctx->out_q_ctx.buffered = buffered;
+}
+
+static inline void v4l2_m2m_set_dst_buffered(struct v4l2_m2m_ctx *m2m_ctx,
+					     bool buffered)
+{
+	m2m_ctx->cap_q_ctx.buffered = buffered;
+}
+
 void v4l2_m2m_ctx_release(struct v4l2_m2m_ctx *m2m_ctx);
 
 void v4l2_m2m_buf_queue(struct v4l2_m2m_ctx *m2m_ctx, struct vb2_buffer *vb);
@@ -140,7 +161,7 @@ void v4l2_m2m_buf_queue(struct v4l2_m2m_ctx *m2m_ctx, struct vb2_buffer *vb);
 static inline
 unsigned int v4l2_m2m_num_src_bufs_ready(struct v4l2_m2m_ctx *m2m_ctx)
 {
-	return m2m_ctx->cap_q_ctx.num_rdy;
+	return m2m_ctx->out_q_ctx.num_rdy;
 }
 
 /**
@@ -150,7 +171,7 @@ unsigned int v4l2_m2m_num_src_bufs_ready(struct v4l2_m2m_ctx *m2m_ctx)
 static inline
 unsigned int v4l2_m2m_num_dst_bufs_ready(struct v4l2_m2m_ctx *m2m_ctx)
 {
-	return m2m_ctx->out_q_ctx.num_rdy;
+	return m2m_ctx->cap_q_ctx.num_rdy;
 }
 
 void *v4l2_m2m_next_buf(struct v4l2_m2m_queue_ctx *q_ctx);
@@ -211,5 +232,26 @@ static inline void *v4l2_m2m_dst_buf_remove(struct v4l2_m2m_ctx *m2m_ctx)
 	return v4l2_m2m_buf_remove(&m2m_ctx->cap_q_ctx);
 }
 
+/* v4l2 ioctl helpers */
+
+int v4l2_m2m_ioctl_reqbufs(struct file *file, void *priv,
+				struct v4l2_requestbuffers *rb);
+int v4l2_m2m_ioctl_create_bufs(struct file *file, void *fh,
+				struct v4l2_create_buffers *create);
+int v4l2_m2m_ioctl_querybuf(struct file *file, void *fh,
+				struct v4l2_buffer *buf);
+int v4l2_m2m_ioctl_expbuf(struct file *file, void *fh,
+				struct v4l2_exportbuffer *eb);
+int v4l2_m2m_ioctl_qbuf(struct file *file, void *fh,
+				struct v4l2_buffer *buf);
+int v4l2_m2m_ioctl_dqbuf(struct file *file, void *fh,
+				struct v4l2_buffer *buf);
+int v4l2_m2m_ioctl_streamon(struct file *file, void *fh,
+				enum v4l2_buf_type type);
+int v4l2_m2m_ioctl_streamoff(struct file *file, void *fh,
+				enum v4l2_buf_type type);
+int v4l2_m2m_fop_mmap(struct file *file, struct vm_area_struct *vma);
+unsigned int v4l2_m2m_fop_poll(struct file *file, poll_table *wait);
+
 #endif /* _MEDIA_V4L2_MEM2MEM_H */