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authorLinus Torvalds <torvalds@linux-foundation.org>2010-05-20 12:37:45 -0400
committerLinus Torvalds <torvalds@linux-foundation.org>2010-05-20 12:37:45 -0400
commitfb091be08d1acf184e8801dfdcace6e0cb19b1fe (patch)
treecbd0c4200fd8628d592167589ca790e36fc4ae26 /include/media/v4l2-event.h
parentbd7fc2f2d807fdb254f7efc542f8eec3f23e289e (diff)
parente8d0416796d43a950ec7b65629e53419b2e22453 (diff)
Merge branch 'v4l_for_2.6.35' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6
* 'v4l_for_2.6.35' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6: (534 commits) V4L/DVB (13554a): v4l: Use the video_drvdata function in drivers V4L/DVB: vivi and mem2mem_testdev need slab.h to build V4L/DVB: tm6000: bugfix image position V4L/DVB: IR/imon: remove dead IMON_KEY_RELEASE_OFFSET V4L/DVB: tm6000: README - add vbi V4L/DVB: Fix unlock logic at medusa_video_init V4L/DVB: fix dvb frontend lockup V4L/DVB: s2255drv: remove dead code V4L/DVB: s2255drv: return if vdev not found V4L/DVB: ov511: cleanup: remove unneeded null check V4L/DVB: media/mem2mem: dereferencing free memory V4L/DVB: media/IR: Add missing include file to rc-map.c V4L/DVB: dvb/stv6110x: cleanup error handling V4L/DVB: ngene: Add lgdt3303 and mt2131 deps to Kconfig V4L/DVB: ngene: start separating out DVB functions into separate file V4L/DVB: ngene: split out card specific code into a separate file V4L/DVB: ngene: split out i2c code into a separate file V4L/DVB: ngene: add initial support for digital side of Avermedia m780 V4L/DVB: ngene: properly support boards where channel 0 isn't a TS input V4L-DVB: ngene: make sure that tuner headers are included ...
Diffstat (limited to 'include/media/v4l2-event.h')
-rw-r--r--include/media/v4l2-event.h67
1 files changed, 67 insertions, 0 deletions
diff --git a/include/media/v4l2-event.h b/include/media/v4l2-event.h
new file mode 100644
index 000000000000..3b86177c8cd2
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+++ b/include/media/v4l2-event.h
@@ -0,0 +1,67 @@
1/*
2 * v4l2-event.h
3 *
4 * V4L2 events.
5 *
6 * Copyright (C) 2009--2010 Nokia Corporation.
7 *
8 * Contact: Sakari Ailus <sakari.ailus@maxwell.research.nokia.com>
9 *
10 * This program is free software; you can redistribute it and/or
11 * modify it under the terms of the GNU General Public License
12 * version 2 as published by the Free Software Foundation.
13 *
14 * This program is distributed in the hope that it will be useful, but
15 * WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17 * General Public License for more details.
18 *
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
22 * 02110-1301 USA
23 */
24
25#ifndef V4L2_EVENT_H
26#define V4L2_EVENT_H
27
28#include <linux/types.h>
29#include <linux/videodev2.h>
30#include <linux/wait.h>
31
32struct v4l2_fh;
33struct video_device;
34
35struct v4l2_kevent {
36 struct list_head list;
37 struct v4l2_event event;
38};
39
40struct v4l2_subscribed_event {
41 struct list_head list;
42 u32 type;
43};
44
45struct v4l2_events {
46 wait_queue_head_t wait;
47 struct list_head subscribed; /* Subscribed events */
48 struct list_head free; /* Events ready for use */
49 struct list_head available; /* Dequeueable event */
50 unsigned int navailable;
51 unsigned int nallocated; /* Number of allocated events */
52 u32 sequence;
53};
54
55int v4l2_event_init(struct v4l2_fh *fh);
56int v4l2_event_alloc(struct v4l2_fh *fh, unsigned int n);
57void v4l2_event_free(struct v4l2_fh *fh);
58int v4l2_event_dequeue(struct v4l2_fh *fh, struct v4l2_event *event,
59 int nonblocking);
60void v4l2_event_queue(struct video_device *vdev, const struct v4l2_event *ev);
61int v4l2_event_pending(struct v4l2_fh *fh);
62int v4l2_event_subscribe(struct v4l2_fh *fh,
63 struct v4l2_event_subscription *sub);
64int v4l2_event_unsubscribe(struct v4l2_fh *fh,
65 struct v4l2_event_subscription *sub);
66
67#endif /* V4L2_EVENT_H */