diff options
| -rw-r--r-- | drivers/media/video/videobuf2-core.c | 67 | ||||
| -rw-r--r-- | include/media/videobuf2-core.h | 3 |
2 files changed, 36 insertions, 34 deletions
diff --git a/drivers/media/video/videobuf2-core.c b/drivers/media/video/videobuf2-core.c index c3606276607e..e89fd53a021a 100644 --- a/drivers/media/video/videobuf2-core.c +++ b/drivers/media/video/videobuf2-core.c @@ -277,6 +277,41 @@ static int __verify_planes_array(struct vb2_buffer *vb, struct v4l2_buffer *b) } /** + * __buffer_in_use() - return true if the buffer is in use and + * the queue cannot be freed (by the means of REQBUFS(0)) call + */ +static bool __buffer_in_use(struct vb2_queue *q, struct vb2_buffer *vb) +{ + unsigned int plane; + for (plane = 0; plane < vb->num_planes; ++plane) { + /* + * If num_users() has not been provided, call_memop + * will return 0, apparently nobody cares about this + * case anyway. If num_users() returns more than 1, + * we are not the only user of the plane's memory. + */ + if (call_memop(q, plane, num_users, + vb->planes[plane].mem_priv) > 1) + return true; + } + return false; +} + +/** + * __buffers_in_use() - return true if any buffers on the queue are in use and + * the queue cannot be freed (by the means of REQBUFS(0)) call + */ +static bool __buffers_in_use(struct vb2_queue *q) +{ + unsigned int buffer; + for (buffer = 0; buffer < q->num_buffers; ++buffer) { + if (__buffer_in_use(q, q->bufs[buffer])) + return true; + } + return false; +} + +/** * __fill_v4l2_buffer() - fill in a struct v4l2_buffer with information to be * returned to userspace */ @@ -335,7 +370,7 @@ static int __fill_v4l2_buffer(struct vb2_buffer *vb, struct v4l2_buffer *b) break; } - if (vb->num_planes_mapped == vb->num_planes) + if (__buffer_in_use(q, vb)) b->flags |= V4L2_BUF_FLAG_MAPPED; return ret; @@ -400,33 +435,6 @@ static int __verify_mmap_ops(struct vb2_queue *q) } /** - * __buffers_in_use() - return true if any buffers on the queue are in use and - * the queue cannot be freed (by the means of REQBUFS(0)) call - */ -static bool __buffers_in_use(struct vb2_queue *q) -{ - unsigned int buffer, plane; - struct vb2_buffer *vb; - - for (buffer = 0; buffer < q->num_buffers; ++buffer) { - vb = q->bufs[buffer]; - for (plane = 0; plane < vb->num_planes; ++plane) { - /* - * If num_users() has not been provided, call_memop - * will return 0, apparently nobody cares about this - * case anyway. If num_users() returns more than 1, - * we are not the only user of the plane's memory. - */ - if (call_memop(q, plane, num_users, - vb->planes[plane].mem_priv) > 1) - return true; - } - } - - return false; -} - -/** * vb2_reqbufs() - Initiate streaming * @q: videobuf2 queue * @req: struct passed from userspace to vidioc_reqbufs handler in driver @@ -1343,9 +1351,6 @@ int vb2_mmap(struct vb2_queue *q, struct vm_area_struct *vma) if (ret) return ret; - vb_plane->mapped = 1; - vb->num_planes_mapped++; - dprintk(3, "Buffer %d, plane %d successfully mapped\n", buffer, plane); return 0; } diff --git a/include/media/videobuf2-core.h b/include/media/videobuf2-core.h index 496d6e548ef5..984f2bae2578 100644 --- a/include/media/videobuf2-core.h +++ b/include/media/videobuf2-core.h @@ -75,7 +75,6 @@ struct vb2_mem_ops { struct vb2_plane { void *mem_priv; - int mapped:1; }; /** @@ -147,7 +146,6 @@ struct vb2_queue; * @done_entry: entry on the list that stores all buffers ready to * be dequeued to userspace * @planes: private per-plane information; do not change - * @num_planes_mapped: number of mapped planes; do not change */ struct vb2_buffer { struct v4l2_buffer v4l2_buf; @@ -164,7 +162,6 @@ struct vb2_buffer { struct list_head done_entry; struct vb2_plane planes[VIDEO_MAX_PLANES]; - unsigned int num_planes_mapped; }; /** |