X-Git-Url: https://git.karo-electronics.de/?a=blobdiff_plain;f=include%2Fmedia%2Fvideobuf-core.h;h=1d3835fc26be0d4a7e20408fb9b242f70f30a459;hb=925d169f5b86fe57e2f5264ea574cce9a89b719d;hp=f2c41cebf453a65abbe4fc281f20103287e5fea0;hpb=a92b166e6b8c3c0037493690b2800b0b0dd92063;p=karo-tx-linux.git

diff --git a/include/media/videobuf-core.h b/include/media/videobuf-core.h
index f2c41cebf453..1d3835fc26be 100644
--- a/include/media/videobuf-core.h
+++ b/include/media/videobuf-core.h
@@ -139,6 +139,7 @@ struct videobuf_qtype_ops {
 
 struct videobuf_queue {
 	struct mutex               vb_lock;
+	struct mutex               *ext_lock;
 	spinlock_t                 *irqlock;
 	struct device		   *dev;
 
@@ -167,7 +168,20 @@ 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);
 
@@ -185,7 +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);