1 files changed, 24 insertions, 0 deletions

diff --git a/include/media/v4l2-mem2mem.h b/include/media/v4l2-mem2mem.h
index 44542a20ab81..12ea5a6a4331 100644
--- a/include/media/v4l2-mem2mem.h
+++ b/include/media/v4l2-mem2mem.h
@@ -64,6 +64,9 @@ struct v4l2_m2m_queue_ctx {
 };
 
 struct v4l2_m2m_ctx {
+        /* optional cap/out vb2 queues lock */
+        struct mutex                    *q_lock;
+
 /* private: internal use only */
         struct v4l2_m2m_dev             *m2m_dev;
 
@@ -229,5 +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 */