diff options
Diffstat (limited to 'ANDROID_3.4.5/include/media/v4l2-device.h')
| -rw-r--r-- | ANDROID_3.4.5/include/media/v4l2-device.h | 193 |
1 files changed, 0 insertions, 193 deletions
diff --git a/ANDROID_3.4.5/include/media/v4l2-device.h b/ANDROID_3.4.5/include/media/v4l2-device.h deleted file mode 100644 index d61febfb..00000000 --- a/ANDROID_3.4.5/include/media/v4l2-device.h +++ /dev/null @@ -1,193 +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/media-device.h> -#include <media/v4l2-subdev.h> -#include <media/v4l2-dev.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 (20 + 16) - -struct v4l2_ctrl_handler; - -struct v4l2_device { - /* dev->driver_data points to this struct. - Note: dev might be NULL if there is no parent device - as is the case with e.g. ISA devices. */ - struct device *dev; -#if defined(CONFIG_MEDIA_CONTROLLER) - struct media_device *mdev; -#endif - /* 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]; - /* notify callback called by some sub-devices. */ - void (*notify)(struct v4l2_subdev *sd, - unsigned int notification, void *arg); - /* The control handler. May be NULL. */ - struct v4l2_ctrl_handler *ctrl_handler; - /* Device's priority state */ - struct v4l2_prio_state prio; - /* BKL replacement mutex. Temporary solution only. */ - struct mutex ioctl_lock; - /* Keep track of the references to this struct. */ - struct kref ref; - /* Release function that is called when the ref count goes to 0. */ - void (*release)(struct v4l2_device *v4l2_dev); -}; - -static inline void v4l2_device_get(struct v4l2_device *v4l2_dev) -{ - kref_get(&v4l2_dev->ref); -} - -int v4l2_device_put(struct v4l2_device *v4l2_dev); - -/* Initialize v4l2_dev and make dev->driver_data point to v4l2_dev. - dev may be NULL in rare cases (ISA devices). In that case you - must fill in the v4l2_dev->name field before calling this function. */ -int __must_check v4l2_device_register(struct device *dev, struct v4l2_device *v4l2_dev); - -/* Optional function to initialize the name field of struct v4l2_device using - the driver name and a driver-global atomic_t instance. - This function will increment the instance counter and returns the instance - value used in the name. - - Example: - - static atomic_t drv_instance = ATOMIC_INIT(0); - - ... - - instance = v4l2_device_set_name(&v4l2_dev, "foo", &drv_instance); - - The first time this is called the name field will be set to foo0 and - this function returns 0. If the name ends with a digit (e.g. cx18), - then the name will be set to cx18-0 since cx180 looks really odd. */ -int v4l2_device_set_name(struct v4l2_device *v4l2_dev, const char *basename, - atomic_t *instance); - -/* Set v4l2_dev->dev to NULL. Call when the USB parent disconnects. - Since the parent disappears this ensures that v4l2_dev doesn't have an - invalid parent pointer. */ -void v4l2_device_disconnect(struct v4l2_device *v4l2_dev); - -/* Unregister all sub-devices and any other resources related to v4l2_dev. */ -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 *v4l2_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); - -/* Register device nodes for all subdev of the v4l2 device that are marked with - * the V4L2_SUBDEV_FL_HAS_DEVNODE flag. - */ -int __must_check -v4l2_device_register_subdev_nodes(struct v4l2_device *v4l2_dev); - -/* Iterate over all subdevs. */ -#define v4l2_device_for_each_subdev(sd, v4l2_dev) \ - list_for_each_entry(sd, &(v4l2_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_p(v4l2_dev, sd, cond, o, f, args...) \ - do { \ - list_for_each_entry((sd), &(v4l2_dev)->subdevs, list) \ - if ((cond) && (sd)->ops->o && (sd)->ops->o->f) \ - (sd)->ops->o->f((sd) , ##args); \ - } while (0) - -#define __v4l2_device_call_subdevs(v4l2_dev, cond, o, f, args...) \ - do { \ - struct v4l2_subdev *__sd; \ - \ - __v4l2_device_call_subdevs_p(v4l2_dev, __sd, cond, o, \ - f , ##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_p(v4l2_dev, sd, cond, o, f, args...) \ -({ \ - long __err = 0; \ - \ - list_for_each_entry((sd), &(v4l2_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; \ -}) - -#define __v4l2_device_call_subdevs_until_err(v4l2_dev, cond, o, f, args...) \ -({ \ - struct v4l2_subdev *__sd; \ - __v4l2_device_call_subdevs_until_err_p(v4l2_dev, __sd, cond, o, \ - f , ##args); \ -}) - -/* 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(v4l2_dev, grpid, o, f, args...) \ - do { \ - struct v4l2_subdev *__sd; \ - \ - __v4l2_device_call_subdevs_p(v4l2_dev, __sd, \ - !(grpid) || __sd->grp_id == (grpid), o, f , \ - ##args); \ - } while (0) - -/* 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(v4l2_dev, grpid, o, f, args...) \ -({ \ - struct v4l2_subdev *__sd; \ - __v4l2_device_call_subdevs_until_err_p(v4l2_dev, __sd, \ - !(grpid) || __sd->grp_id == (grpid), o, f , \ - ##args); \ -}) - -#endif |