diff options
| author | Marek Szyprowski <m.szyprowski@samsung.com> | 2012-04-20 16:45:30 +0200 |
|---|---|---|
| committer | Sumit Semwal <sumit.semwal@ti.com> | 2012-04-24 16:14:02 +0530 |
| commit | 7110dcb793e1f3593d3910c5f1b8dffded114d57 (patch) | |
| tree | 8fbb64c0db3ebcc89095c949ac2eeb640d54c490 /include/media | |
| parent | 5f2a7290c56ba18498f2b593705f29ca1da7e4b6 (diff) | |
v4l: vb2: add prepare/finish callbacks to allocators
This patch adds support for prepare/finish callbacks in VB2 allocators. These
callback are used for buffer flushing.
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Sumit Semwal <sumit.semwal@ti.com>
Diffstat (limited to 'include/media')
| -rw-r--r-- | include/media/videobuf2-core.h | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/include/media/videobuf2-core.h b/include/media/videobuf2-core.h index 859bbafc1dc8..d079f92b6030 100644 --- a/include/media/videobuf2-core.h +++ b/include/media/videobuf2-core.h @@ -56,6 +56,10 @@ struct vb2_fileio_data; * dmabuf * @unmap_dmabuf: releases access control to the dmabuf - allocator is notified * that this driver is done using the dmabuf for now + * @prepare: called everytime the buffer is passed from userspace to the + * driver, usefull for cache synchronisation, optional + * @finish: called everytime the buffer is passed back from the driver + * to the userspace, also optional * @vaddr: return a kernel virtual address to a given memory buffer * associated with the passed private structure or NULL if no * such mapping exists @@ -82,6 +86,9 @@ struct vb2_mem_ops { unsigned long size, int write); void (*put_userptr)(void *buf_priv); + void (*prepare)(void *buf_priv); + void (*finish)(void *buf_priv); + void *(*attach_dmabuf)(void *alloc_ctx, struct dma_buf *dbuf, unsigned long size, int write); void (*detach_dmabuf)(void *buf_priv); |