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authorJunghak Sung <jh1009.sung@samsung.com>2015-11-03 08:16:42 -0200
committerMauro Carvalho Chehab <mchehab@osg.samsung.com>2015-12-18 13:58:09 -0200
commitaf3bac1a7c8a21ff4f4edede397cba8e3f8ee503 (patch)
tree1e147baf338d5173bb588b05501ddb5be3e0733c /include/media/videobuf2-core.h
parent70433a152f0058404afb5496a9329e4e26b127df (diff)
[media] media: videobuf2: Move vb2_fileio_data and vb2_thread to core part
Move things related with vb2 file I/O and vb2_thread without doing any functional changes. After that, videobuf2-internal.h is removed because it is not necessary any more. Signed-off-by: Junghak Sung <jh1009.sung@samsung.com> Signed-off-by: Geunyoung Kim <nenggun.kim@samsung.com> Acked-by: Seung-Woo Kim <sw0312.kim@samsung.com> Acked-by: Inki Dae <inki.dae@samsung.com> Acked-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Hans Verkuil <hansverk@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Diffstat (limited to 'include/media/videobuf2-core.h')
-rw-r--r--include/media/videobuf2-core.h43
1 files changed, 43 insertions, 0 deletions
diff --git a/include/media/videobuf2-core.h b/include/media/videobuf2-core.h
index 67da1433b6a7..cc94c9d1c2c4 100644
--- a/include/media/videobuf2-core.h
+++ b/include/media/videobuf2-core.h
@@ -541,6 +541,42 @@ unsigned long vb2_get_unmapped_area(struct vb2_queue *q,
unsigned long pgoff,
unsigned long flags);
#endif
+unsigned int vb2_core_poll(struct vb2_queue *q, struct file *file,
+ poll_table *wait);
+size_t vb2_read(struct vb2_queue *q, char __user *data, size_t count,
+ loff_t *ppos, int nonblock);
+size_t vb2_write(struct vb2_queue *q, const char __user *data, size_t count,
+ loff_t *ppos, int nonblock);
+
+/*
+ * vb2_thread_fnc - callback function for use with vb2_thread
+ *
+ * This is called whenever a buffer is dequeued in the thread.
+ */
+typedef int (*vb2_thread_fnc)(struct vb2_buffer *vb, void *priv);
+
+/**
+ * vb2_thread_start() - start a thread for the given queue.
+ * @q: videobuf queue
+ * @fnc: callback function
+ * @priv: priv pointer passed to the callback function
+ * @thread_name:the name of the thread. This will be prefixed with "vb2-".
+ *
+ * This starts a thread that will queue and dequeue until an error occurs
+ * or @vb2_thread_stop is called.
+ *
+ * This function should not be used for anything else but the videobuf2-dvb
+ * support. If you think you have another good use-case for this, then please
+ * contact the linux-media mailinglist first.
+ */
+int vb2_thread_start(struct vb2_queue *q, vb2_thread_fnc fnc, void *priv,
+ const char *thread_name);
+
+/**
+ * vb2_thread_stop() - stop the thread for the given queue.
+ * @q: videobuf queue
+ */
+int vb2_thread_stop(struct vb2_queue *q);
/**
* vb2_is_streaming() - return streaming status of the queue
@@ -645,4 +681,11 @@ static inline void vb2_clear_last_buffer_dequeued(struct vb2_queue *q)
q->last_buffer_dequeued = false;
}
+/*
+ * The following functions are not part of the vb2 core API, but are useful
+ * functions for videobuf2-*.
+ */
+bool vb2_buffer_in_use(struct vb2_queue *q, struct vb2_buffer *vb);
+int vb2_verify_memory_type(struct vb2_queue *q,
+ enum vb2_memory memory, unsigned int type);
#endif /* _MEDIA_VIDEOBUF2_CORE_H */

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