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authorMauro Carvalho Chehab <mchehab@redhat.com>2012-12-11 11:28:37 -0200
committerMauro Carvalho Chehab <mchehab@redhat.com>2012-12-11 11:28:37 -0200
commit77c53d0b56264a8fc5844e087ad15fffe20c299d (patch)
tree61925f42355feabc010c53172212742ec3651d4f /include/uapi
parent9374020a78fce13a1cf2edf3d26f6dd7231b5c3d (diff)
parentd8658bca2e5696df2b6c69bc5538f8fe54e4a01e (diff)
Merge branch 'for_3.8-rc1' into v4l_for_linus
* for_3.8-rc1: (243 commits) [media] omap3isp: Replace cpu_is_omap3630() with ISP revision check [media] omap3isp: Prepare/unprepare clocks before/after enable/disable [media] omap3isp: preview: Add support for 8-bit formats at the sink pad [media] omap3isp: Replace printk with dev_* [media] omap3isp: Find source pad from external entity [media] omap3isp: Configure CSI-2 phy based on platform data [media] omap3isp: Add PHY routing configuration [media] omap3isp: Add CSI configuration registers from control block to ISP resources [media] omap3isp: Remove unneeded module memory address definitions [media] omap3isp: Use monotonic timestamps for statistics buffers [media] uvcvideo: Fix control value clamping for unsigned integer controls [media] uvcvideo: Mark first output terminal as default video node [media] uvcvideo: Add VIDIOC_[GS]_PRIORITY support [media] uvcvideo: Return -ENOTTY for unsupported ioctls [media] uvcvideo: Set device_caps in VIDIOC_QUERYCAP [media] uvcvideo: Don't fail when an unsupported format is requested [media] uvcvideo: Return -EACCES when trying to access a read/write-only control [media] uvcvideo: Set error_idx properly for extended controls API failures [media] rtl28xxu: add NOXON DAB/DAB+ USB dongle rev 2 [media] fc2580: write some registers conditionally ...
Diffstat (limited to 'include/uapi')
-rw-r--r--include/uapi/linux/videodev2.h37
1 files changed, 36 insertions, 1 deletions
diff --git a/include/uapi/linux/videodev2.h b/include/uapi/linux/videodev2.h
index 57bfa59cda74..3cf3e946e331 100644
--- a/include/uapi/linux/videodev2.h
+++ b/include/uapi/linux/videodev2.h
@@ -186,6 +186,7 @@ enum v4l2_memory {
V4L2_MEMORY_MMAP = 1,
V4L2_MEMORY_USERPTR = 2,
V4L2_MEMORY_OVERLAY = 3,
+ V4L2_MEMORY_DMABUF = 4,
};
/* see also http://vektor.theorem.ca/graphics/ycbcr/ */
@@ -602,6 +603,8 @@ struct v4l2_requestbuffers {
* should be passed to mmap() called on the video node)
* @userptr: when memory is V4L2_MEMORY_USERPTR, a userspace pointer
* pointing to this plane
+ * @fd: when memory is V4L2_MEMORY_DMABUF, a userspace file
+ * descriptor associated with this plane
* @data_offset: offset in the plane to the start of data; usually 0,
* unless there is a header in front of the data
*
@@ -616,6 +619,7 @@ struct v4l2_plane {
union {
__u32 mem_offset;
unsigned long userptr;
+ __s32 fd;
} m;
__u32 data_offset;
__u32 reserved[11];
@@ -640,6 +644,8 @@ struct v4l2_plane {
* (or a "cookie" that should be passed to mmap() as offset)
* @userptr: for non-multiplanar buffers with memory == V4L2_MEMORY_USERPTR;
* a userspace pointer pointing to this buffer
+ * @fd: for non-multiplanar buffers with memory == V4L2_MEMORY_DMABUF;
+ * a userspace file descriptor associated with this buffer
* @planes: for multiplanar buffers; userspace pointer to the array of plane
* info structs for this buffer
* @length: size in bytes of the buffer (NOT its payload) for single-plane
@@ -666,6 +672,7 @@ struct v4l2_buffer {
__u32 offset;
unsigned long userptr;
struct v4l2_plane *planes;
+ __s32 fd;
} m;
__u32 length;
__u32 reserved2;
@@ -687,6 +694,33 @@ struct v4l2_buffer {
#define V4L2_BUF_FLAG_NO_CACHE_INVALIDATE 0x0800
#define V4L2_BUF_FLAG_NO_CACHE_CLEAN 0x1000
+/**
+ * struct v4l2_exportbuffer - export of video buffer as DMABUF file descriptor
+ *
+ * @index: id number of the buffer
+ * @type: enum v4l2_buf_type; buffer type (type == *_MPLANE for
+ * multiplanar buffers);
+ * @plane: index of the plane to be exported, 0 for single plane queues
+ * @flags: flags for newly created file, currently only O_CLOEXEC is
+ * supported, refer to manual of open syscall for more details
+ * @fd: file descriptor associated with DMABUF (set by driver)
+ *
+ * Contains data used for exporting a video buffer as DMABUF file descriptor.
+ * The buffer is identified by a 'cookie' returned by VIDIOC_QUERYBUF
+ * (identical to the cookie used to mmap() the buffer to userspace). All
+ * reserved fields must be set to zero. The field reserved0 is expected to
+ * become a structure 'type' allowing an alternative layout of the structure
+ * content. Therefore this field should not be used for any other extensions.
+ */
+struct v4l2_exportbuffer {
+ __u32 type; /* enum v4l2_buf_type */
+ __u32 index;
+ __u32 plane;
+ __u32 flags;
+ __s32 fd;
+ __u32 reserved[11];
+};
+
/*
* O V E R L A Y P R E V I E W
*/
@@ -737,7 +771,7 @@ struct v4l2_window {
struct v4l2_captureparm {
__u32 capability; /* Supported modes */
__u32 capturemode; /* Current mode */
- struct v4l2_fract timeperframe; /* Time per frame in .1us units */
+ struct v4l2_fract timeperframe; /* Time per frame in seconds */
__u32 extendedmode; /* Driver-specific extensions */
__u32 readbuffers; /* # of buffers for read */
__u32 reserved[4];
@@ -1888,6 +1922,7 @@ struct v4l2_create_buffers {
#define VIDIOC_S_FBUF _IOW('V', 11, struct v4l2_framebuffer)
#define VIDIOC_OVERLAY _IOW('V', 14, int)
#define VIDIOC_QBUF _IOWR('V', 15, struct v4l2_buffer)
+#define VIDIOC_EXPBUF _IOWR('V', 16, struct v4l2_exportbuffer)
#define VIDIOC_DQBUF _IOWR('V', 17, struct v4l2_buffer)
#define VIDIOC_STREAMON _IOW('V', 18, int)
#define VIDIOC_STREAMOFF _IOW('V', 19, int)