diff options
| author | Steve Longerbeam <slongerbeam@gmail.com> | 2019-01-15 17:16:08 -0200 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab+samsung@kernel.org> | 2019-01-21 16:45:33 -0200 |
| commit | 54f4bc2f2aada71a681b79b64cf74ca6e8c5d26c (patch) | |
| tree | ebbf30a47f44223d5ddc884378e1604ea1816d5a /drivers/staging/media | |
| parent | 958f047a250ae9000308de050e4285ecff5089cf (diff) | |
media: imx: capture: Allow event subscribe/unsubscribe
Implement the vidioc_(un)subscribe_event operations. Imx will allow
subscribing to the imx-specific frame interval error events, events
from subdevices (V4L2_EVENT_SOURCE_CHANGE), and control events.
Signed-off-by: Steve Longerbeam <slongerbeam@gmail.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Diffstat (limited to 'drivers/staging/media')
| -rw-r--r-- | drivers/staging/media/imx/imx-media-capture.c | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/drivers/staging/media/imx/imx-media-capture.c b/drivers/staging/media/imx/imx-media-capture.c index a93bd7f388ef..f92edee63aa6 100644 --- a/drivers/staging/media/imx/imx-media-capture.c +++ b/drivers/staging/media/imx/imx-media-capture.c @@ -398,6 +398,21 @@ static int capture_s_parm(struct file *file, void *fh, return 0; } +static int capture_subscribe_event(struct v4l2_fh *fh, + const struct v4l2_event_subscription *sub) +{ + switch (sub->type) { + case V4L2_EVENT_IMX_FRAME_INTERVAL_ERROR: + return v4l2_event_subscribe(fh, sub, 0, NULL); + case V4L2_EVENT_SOURCE_CHANGE: + return v4l2_src_change_event_subscribe(fh, sub); + case V4L2_EVENT_CTRL: + return v4l2_ctrl_subscribe_event(fh, sub); + default: + return -EINVAL; + } +} + static const struct v4l2_ioctl_ops capture_ioctl_ops = { .vidioc_querycap = vidioc_querycap, @@ -427,6 +442,9 @@ static const struct v4l2_ioctl_ops capture_ioctl_ops = { .vidioc_expbuf = vb2_ioctl_expbuf, .vidioc_streamon = vb2_ioctl_streamon, .vidioc_streamoff = vb2_ioctl_streamoff, + + .vidioc_subscribe_event = capture_subscribe_event, + .vidioc_unsubscribe_event = v4l2_event_unsubscribe, }; /* |