mirror of
https://github.com/AetherDroid/android_kernel_samsung_on5xelte.git
synced 2025-09-08 17:18:05 -04:00
Fixed MTP to work with TWRP
This commit is contained in:
awab228
commit
f6dfaef42e
50820 changed files with 20846062 additions and 0 deletions
214
include/media/v4l2-device.h
Normal file
214
include/media/v4l2-device.h
Normal file
|
|
@ -0,0 +1,214 @@
|
|||
/*
|
||||
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);
|
||||
|
||||
/* Send a notification to v4l2_device. */
|
||||
static inline void v4l2_subdev_notify(struct v4l2_subdev *sd,
|
||||
unsigned int notification, void *arg)
|
||||
{
|
||||
if (sd && sd->v4l2_dev && sd->v4l2_dev->notify)
|
||||
sd->v4l2_dev->notify(sd, notification, arg);
|
||||
}
|
||||
|
||||
/* 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); \
|
||||
})
|
||||
|
||||
#define v4l2_device_has_op(v4l2_dev, o, f) \
|
||||
({ \
|
||||
struct v4l2_subdev *__sd; \
|
||||
bool __result = false; \
|
||||
list_for_each_entry(__sd, &(v4l2_dev)->subdevs, list) { \
|
||||
if (v4l2_subdev_has_op(__sd, o, f)) { \
|
||||
__result = true; \
|
||||
break; \
|
||||
} \
|
||||
} \
|
||||
__result; \
|
||||
})
|
||||
|
||||
#endif
|
||||
Loading…
Add table
Add a link
Reference in a new issue