diff options
Diffstat (limited to 'include/media/videobuf-core.h')
| -rw-r--r-- | include/media/videobuf-core.h | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/include/media/videobuf-core.h b/include/media/videobuf-core.h index f2c41cebf453..f5eb2cbf3002 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; @@ -167,6 +168,18 @@ struct videobuf_queue { void *priv_data; }; +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_buffer *vb, int non_blocking, int intr); int videobuf_iolock(struct videobuf_queue *q, struct videobuf_buffer *vb, struct v4l2_framebuffer *fbuf); |