path: root/include/media/videobuf2-core.h
diff options
authorMauro Carvalho Chehab <mchehab@osg.samsung.com>2014-10-09 14:00:54 -0300
committerMauro Carvalho Chehab <mchehab@osg.samsung.com>2014-10-09 14:00:54 -0300
commita66d05d504a24894a8fdf11e4569752f313e5764 (patch)
tree2bb40c1f6c301b231d7aeaad08c190aa5a82ba1f /include/media/videobuf2-core.h
parentbfe01a5ba2490f299e1d2d5508cbbbadd897bbe9 (diff)
parent5563caaf8b8cd22e35997d5d74cb3609df86b223 (diff)
Merge branch 'patchwork' into v4l_for_linusmedia/v3.18-rc1
* patchwork: (544 commits) [media] ir-hix5hd2: fix build on c6x arch [media] pt3: fix DTV FE I2C driver load error paths Revert "[media] media: em28xx - remove reset_resume interface" [media] exynos4-is: fix some warnings when compiling on arm64 [media] usb drivers: use %zu instead of %zd [media] pci drivers: use %zu instead of %zd [media] dvb-frontends: use %zu instead of %zd [media] s5p-mfc: Fix several printk warnings [media] s5p_mfc_opr: Fix warnings [media] ti-vpe: Fix typecast [media] s3c-camif: fix dma_addr_t printks [media] s5p_mfc_opr_v6: get rid of warnings when compiled with 64 bits [media] s5p_mfc_opr_v5: Fix lots of warnings on x86_64 [media] em28xx: Fix identation [media] drxd: remove a dead code [media] saa7146: remove return after BUG() [media] cx88: remove return after BUG() [media] cx88: fix cards table CodingStyle [media] radio-sf16fmr2: declare some structs as static [media] radio-sf16fmi: declare pnp_attached as static ... Conflicts: Documentation/DocBook/media/v4l/compat.xml
Diffstat (limited to 'include/media/videobuf2-core.h')
1 files changed, 13 insertions, 2 deletions
diff --git a/include/media/videobuf2-core.h b/include/media/videobuf2-core.h
index 2fefcf491aa8..6ef2d01197da 100644
--- a/include/media/videobuf2-core.h
+++ b/include/media/videobuf2-core.h
@@ -356,8 +356,8 @@ struct v4l2_fh;
* @buf_struct_size: size of the driver-specific buffer structure;
* "0" indicates the driver doesn't want to use a custom buffer
* structure type, so sizeof(struct vb2_buffer) will is used
- * @timestamp_flags: Timestamp flags; V4L2_BUF_FLAGS_TIMESTAMP_* and
+ * @timestamp_flags: Timestamp flags; V4L2_BUF_FLAG_TIMESTAMP_* and
* @gfp_flags: additional gfp flags used when allocating the buffers.
* Typically this is 0, but it may be e.g. GFP_DMA or __GFP_DMA32
* to force the buffer allocation to a specific memory zone.
@@ -366,6 +366,7 @@ struct v4l2_fh;
* cannot be started unless at least this number of buffers
* have been queued into the driver.
+ * @mmap_lock: private mutex used when buffers are allocated/freed/mmapped
* @memory: current memory type used
* @bufs: videobuf buffer structures
* @num_buffers: number of allocated/used buffers
@@ -402,6 +403,7 @@ struct vb2_queue {
u32 min_buffers_needed;
/* private: internal use only */
+ struct mutex mmap_lock;
enum v4l2_memory memory;
struct vb2_buffer *bufs[VIDEO_MAX_FRAME];
unsigned int num_buffers;
@@ -592,6 +594,15 @@ vb2_plane_size(struct vb2_buffer *vb, unsigned int plane_no)
return 0;
+ * vb2_start_streaming_called() - return streaming status of driver
+ * @q: videobuf queue
+ */
+static inline bool vb2_start_streaming_called(struct vb2_queue *q)
+ return q->start_streaming_called;
* The following functions are not part of the vb2 core API, but are simple
* helper functions that you can use in your struct v4l2_file_operations,

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