diff options
Diffstat (limited to 'drivers/media/video/v4l2-fh.c')
| -rw-r--r-- | drivers/media/video/v4l2-fh.c | 79 |
1 files changed, 0 insertions, 79 deletions
diff --git a/drivers/media/video/v4l2-fh.c b/drivers/media/video/v4l2-fh.c deleted file mode 100644 index d78f184f40c..00000000000 --- a/drivers/media/video/v4l2-fh.c +++ /dev/null @@ -1,79 +0,0 @@ -/* - * v4l2-fh.c - * - * V4L2 file handles. - * - * Copyright (C) 2009--2010 Nokia Corporation. - * - * Contact: Sakari Ailus <sakari.ailus@maxwell.research.nokia.com> - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * version 2 as published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA - * 02110-1301 USA - */ - -#include <linux/bitops.h> -#include <media/v4l2-dev.h> -#include <media/v4l2-fh.h> -#include <media/v4l2-event.h> -#include <media/v4l2-ioctl.h> - -int v4l2_fh_init(struct v4l2_fh *fh, struct video_device *vdev) -{ - fh->vdev = vdev; - INIT_LIST_HEAD(&fh->list); - set_bit(V4L2_FL_USES_V4L2_FH, &fh->vdev->flags); - - /* - * fh->events only needs to be initialized if the driver - * supports the VIDIOC_SUBSCRIBE_EVENT ioctl. - */ - if (vdev->ioctl_ops && vdev->ioctl_ops->vidioc_subscribe_event) - return v4l2_event_init(fh); - - fh->events = NULL; - - return 0; -} -EXPORT_SYMBOL_GPL(v4l2_fh_init); - -void v4l2_fh_add(struct v4l2_fh *fh) -{ - unsigned long flags; - - spin_lock_irqsave(&fh->vdev->fh_lock, flags); - list_add(&fh->list, &fh->vdev->fh_list); - spin_unlock_irqrestore(&fh->vdev->fh_lock, flags); -} -EXPORT_SYMBOL_GPL(v4l2_fh_add); - -void v4l2_fh_del(struct v4l2_fh *fh) -{ - unsigned long flags; - - spin_lock_irqsave(&fh->vdev->fh_lock, flags); - list_del_init(&fh->list); - spin_unlock_irqrestore(&fh->vdev->fh_lock, flags); -} -EXPORT_SYMBOL_GPL(v4l2_fh_del); - -void v4l2_fh_exit(struct v4l2_fh *fh) -{ - if (fh->vdev == NULL) - return; - - fh->vdev = NULL; - - v4l2_event_free(fh); -} -EXPORT_SYMBOL_GPL(v4l2_fh_exit); |
