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authorSakari Ailus <sakari.ailus@maxwell.research.nokia.com>2010-03-27 11:02:10 -0300
committerMauro Carvalho Chehab <mchehab@redhat.com>2010-05-19 12:58:07 -0300
commitd3d7c963562adad92e968df23c425ae964fe9ce2 (patch)
tree1677fc6591a417c7a2866a342b9270233d17c216 /drivers/media/video/v4l2-ioctl.c
parentc3b5b0241f620a356c97d8f43343e721c718806d (diff)
V4L/DVB: V4L: Events: Support event handling in do_ioctl
Add support for event handling to do_ioctl. Signed-off-by: Sakari Ailus <sakari.ailus@maxwell.research.nokia.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/media/video/v4l2-ioctl.c')
-rw-r--r--drivers/media/video/v4l2-ioctl.c50
1 files changed, 50 insertions, 0 deletions
diff --git a/drivers/media/video/v4l2-ioctl.c b/drivers/media/video/v4l2-ioctl.c
index 2ceaa152a450..0eeceae50329 100644
--- a/drivers/media/video/v4l2-ioctl.c
+++ b/drivers/media/video/v4l2-ioctl.c
@@ -26,6 +26,8 @@
#endif
#include <media/v4l2-common.h>
#include <media/v4l2-ioctl.h>
+#include <media/v4l2-fh.h>
+#include <media/v4l2-event.h>
#include <media/v4l2-chip-ident.h>
#define dbgarg(cmd, fmt, arg...) \
@@ -1951,7 +1953,55 @@ static long __video_do_ioctl(struct file *file,
}
break;
}
+ case VIDIOC_DQEVENT:
+ {
+ struct v4l2_event *ev = arg;
+
+ if (!ops->vidioc_subscribe_event)
+ break;
+
+ ret = v4l2_event_dequeue(fh, ev, file->f_flags & O_NONBLOCK);
+ if (ret < 0) {
+ dbgarg(cmd, "no pending events?");
+ break;
+ }
+ dbgarg(cmd,
+ "pending=%d, type=0x%8.8x, sequence=%d, "
+ "timestamp=%lu.%9.9lu ",
+ ev->pending, ev->type, ev->sequence,
+ ev->timestamp.tv_sec, ev->timestamp.tv_nsec);
+ break;
+ }
+ case VIDIOC_SUBSCRIBE_EVENT:
+ {
+ struct v4l2_event_subscription *sub = arg;
+ if (!ops->vidioc_subscribe_event)
+ break;
+
+ ret = ops->vidioc_subscribe_event(fh, sub);
+ if (ret < 0) {
+ dbgarg(cmd, "failed, ret=%ld", ret);
+ break;
+ }
+ dbgarg(cmd, "type=0x%8.8x", sub->type);
+ break;
+ }
+ case VIDIOC_UNSUBSCRIBE_EVENT:
+ {
+ struct v4l2_event_subscription *sub = arg;
+
+ if (!ops->vidioc_unsubscribe_event)
+ break;
+
+ ret = ops->vidioc_unsubscribe_event(fh, sub);
+ if (ret < 0) {
+ dbgarg(cmd, "failed, ret=%ld", ret);
+ break;
+ }
+ dbgarg(cmd, "type=0x%8.8x", sub->type);
+ break;
+ }
default:
{
if (!ops->vidioc_default)

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