diff options
Diffstat (limited to 'libdde-linux26/libdde_linux26/contrib/include/media/v4l2-device.h')
| -rw-r--r-- | libdde-linux26/libdde_linux26/contrib/include/media/v4l2-device.h | 109 |
1 files changed, 0 insertions, 109 deletions
diff --git a/libdde-linux26/libdde_linux26/contrib/include/media/v4l2-device.h b/libdde-linux26/libdde_linux26/contrib/include/media/v4l2-device.h deleted file mode 100644 index 55e41afd..00000000 --- a/libdde-linux26/libdde_linux26/contrib/include/media/v4l2-device.h +++ /dev/null @@ -1,109 +0,0 @@ -/* - V4L2 device support header. - - Copyright (C) 2008 Hans Verkuil <hverkuil@xs4all.nl> - - This program is free software; you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation; either version 2 of the License, or - (at your option) any later version. - - 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - */ - -#ifndef _V4L2_DEVICE_H -#define _V4L2_DEVICE_H - -#include <media/v4l2-subdev.h> - -/* Each instance of a V4L2 device should create the v4l2_device struct, - either stand-alone or embedded in a larger struct. - - It allows easy access to sub-devices (see v4l2-subdev.h) and provides - basic V4L2 device-level support. - */ - -#define V4L2_DEVICE_NAME_SIZE (BUS_ID_SIZE + 16) - -struct v4l2_device { - /* dev->driver_data points to this struct */ - struct device *dev; - /* used to keep track of the registered subdevs */ - struct list_head subdevs; - /* lock this struct; can be used by the driver as well if this - struct is embedded into a larger struct. */ - spinlock_t lock; - /* unique device name, by default the driver name + bus ID */ - char name[V4L2_DEVICE_NAME_SIZE]; -}; - -/* Initialize v4l2_dev and make dev->driver_data point to v4l2_dev */ -int __must_check v4l2_device_register(struct device *dev, struct v4l2_device *v4l2_dev); -/* Set v4l2_dev->dev->driver_data to NULL and unregister all sub-devices */ -void v4l2_device_unregister(struct v4l2_device *v4l2_dev); - -/* Register a subdev with a v4l2 device. While registered the subdev module - is marked as in-use. An error is returned if the module is no longer - loaded when you attempt to register it. */ -int __must_check v4l2_device_register_subdev(struct v4l2_device *dev, struct v4l2_subdev *sd); -/* Unregister a subdev with a v4l2 device. Can also be called if the subdev - wasn't registered. In that case it will do nothing. */ -void v4l2_device_unregister_subdev(struct v4l2_subdev *sd); - -/* Iterate over all subdevs. */ -#define v4l2_device_for_each_subdev(sd, dev) \ - list_for_each_entry(sd, &(dev)->subdevs, list) - -/* Call the specified callback for all subdevs matching the condition. - Ignore any errors. Note that you cannot add or delete a subdev - while walking the subdevs list. */ -#define __v4l2_device_call_subdevs(dev, cond, o, f, args...) \ - do { \ - struct v4l2_subdev *sd; \ - \ - list_for_each_entry(sd, &(dev)->subdevs, list) \ - if ((cond) && sd->ops->o && sd->ops->o->f) \ - sd->ops->o->f(sd , ##args); \ - } while (0) - -/* Call the specified callback for all subdevs matching the condition. - If the callback returns an error other than 0 or -ENOIOCTLCMD, then - return with that error code. Note that you cannot add or delete a - subdev while walking the subdevs list. */ -#define __v4l2_device_call_subdevs_until_err(dev, cond, o, f, args...) \ -({ \ - struct v4l2_subdev *sd; \ - long err = 0; \ - \ - list_for_each_entry(sd, &(dev)->subdevs, list) { \ - if ((cond) && sd->ops->o && sd->ops->o->f) \ - err = sd->ops->o->f(sd , ##args); \ - if (err && err != -ENOIOCTLCMD) \ - break; \ - } \ - (err == -ENOIOCTLCMD) ? 0 : err; \ -}) - -/* Call the specified callback for all subdevs matching grp_id (if 0, then - match them all). Ignore any errors. Note that you cannot add or delete - a subdev while walking the subdevs list. */ -#define v4l2_device_call_all(dev, grpid, o, f, args...) \ - __v4l2_device_call_subdevs(dev, \ - !(grpid) || sd->grp_id == (grpid), o, f , ##args) - -/* Call the specified callback for all subdevs matching grp_id (if 0, then - match them all). If the callback returns an error other than 0 or - -ENOIOCTLCMD, then return with that error code. Note that you cannot - add or delete a subdev while walking the subdevs list. */ -#define v4l2_device_call_until_err(dev, grpid, o, f, args...) \ - __v4l2_device_call_subdevs_until_err(dev, \ - !(grpid) || sd->grp_id == (grpid), o, f , ##args) - -#endif |