1 files changed, 19 insertions, 6 deletions

diff --git a/include/media/videobuf-core.h b/include/media/videobuf-core.h
index f91a736c133d..1d3835fc26be 100644
--- a/include/media/videobuf-core.h
+++ b/include/media/videobuf-core.h
@@ -54,8 +54,6 @@ struct videobuf_queue;
 
 struct videobuf_mapping {
 	unsigned int count;
-	unsigned long start;
-	unsigned long end;
 	struct videobuf_queue *q;
 };
 
@@ -127,7 +125,7 @@ struct videobuf_queue_ops {
 struct videobuf_qtype_ops {
 	u32                     magic;
 
-	struct videobuf_buffer *(*alloc)(size_t size);
+	struct videobuf_buffer *(*alloc_vb)(size_t size);
 	void *(*vaddr)		(struct videobuf_buffer *buf);
 	int (*iolock)		(struct videobuf_queue *q,
 				 struct videobuf_buffer *vb,
@@ -141,6 +139,7 @@ struct videobuf_qtype_ops {
 
 struct videobuf_queue {
 	struct mutex               vb_lock;
+	struct mutex               *ext_lock;
 	spinlock_t                 *irqlock;
 	struct device		   *dev;
 
@@ -169,11 +168,24 @@ struct videobuf_queue {
 	void                       *priv_data;
 };
 
-int videobuf_waiton(struct videobuf_buffer *vb, int non_blocking, int intr);
+static inline void videobuf_queue_lock(struct videobuf_queue *q)
+{
+	if (!q->ext_lock)
+		mutex_lock(&q->vb_lock);
+}
+
+static inline void videobuf_queue_unlock(struct videobuf_queue *q)
+{
+	if (!q->ext_lock)
+		mutex_unlock(&q->vb_lock);
+}
+
+int videobuf_waiton(struct videobuf_queue *q, struct videobuf_buffer *vb,
+		int non_blocking, int intr);
 int videobuf_iolock(struct videobuf_queue *q, struct videobuf_buffer *vb,
 		struct v4l2_framebuffer *fbuf);
 
-struct videobuf_buffer *videobuf_alloc(struct videobuf_queue *q);
+struct videobuf_buffer *videobuf_alloc_vb(struct videobuf_queue *q);
 
 /* Used on videobuf-dvb */
 void *videobuf_queue_to_vaddr(struct videobuf_queue *q,
@@ -187,7 +199,8 @@ void videobuf_queue_core_init(struct videobuf_queue *q,
 			 enum v4l2_field field,
 			 unsigned int msize,
 			 void *priv,
-			 struct videobuf_qtype_ops *int_ops);
+			 struct videobuf_qtype_ops *int_ops,
+			 struct mutex *ext_lock);
 int  videobuf_queue_is_busy(struct videobuf_queue *q);
 void videobuf_queue_cancel(struct videobuf_queue *q);