| Server IP : 79.136.114.73 / Your IP : 3.15.195.46 Web Server : Apache/2.4.7 (Ubuntu) PHP/5.5.9-1ubuntu4.29 OpenSSL/1.0.1f System : Linux b8009 3.13.0-170-generic #220-Ubuntu SMP Thu May 9 12:40:49 UTC 2019 x86_64 User : www-data ( 33) PHP Version : 5.5.9-1ubuntu4.29 Disable Function : pcntl_alarm,pcntl_fork,pcntl_waitpid,pcntl_wait,pcntl_wifexited,pcntl_wifstopped,pcntl_wifsignaled,pcntl_wexitstatus,pcntl_wtermsig,pcntl_wstopsig,pcntl_signal,pcntl_signal_dispatch,pcntl_get_last_error,pcntl_strerror,pcntl_sigprocmask,pcntl_sigwaitinfo,pcntl_sigtimedwait,pcntl_exec,pcntl_getpriority,pcntl_setpriority, MySQL : ON | cURL : ON | WGET : ON | Perl : ON | Python : ON | Sudo : ON | Pkexec : ON Directory : /usr/src/linux-headers-3.13.0-170/include/media/ |
Upload File : |
/*
* V4L2 asynchronous subdevice registration API
*
* Copyright (C) 2012-2013, Guennadi Liakhovetski <g.liakhovetski@gmx.de>
*
* 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.
*/
#ifndef V4L2_ASYNC_H
#define V4L2_ASYNC_H
#include <linux/list.h>
#include <linux/mutex.h>
struct device;
struct device_node;
struct v4l2_device;
struct v4l2_subdev;
struct v4l2_async_notifier;
/* A random max subdevice number, used to allocate an array on stack */
#define V4L2_MAX_SUBDEVS 128U
enum v4l2_async_match_type {
V4L2_ASYNC_MATCH_CUSTOM,
V4L2_ASYNC_MATCH_DEVNAME,
V4L2_ASYNC_MATCH_I2C,
V4L2_ASYNC_MATCH_OF,
};
/**
* struct v4l2_async_subdev - sub-device descriptor, as known to a bridge
* @bus_type: subdevice bus type to select the appropriate matching method
* @match: union of per-bus type matching data sets
* @list: used to link struct v4l2_async_subdev objects, waiting to be
* probed, to a notifier->waiting list
*/
struct v4l2_async_subdev {
enum v4l2_async_match_type match_type;
union {
struct {
const struct device_node *node;
} of;
struct {
const char *name;
} device_name;
struct {
int adapter_id;
unsigned short address;
} i2c;
struct {
bool (*match)(struct device *,
struct v4l2_async_subdev *);
void *priv;
} custom;
} match;
/* v4l2-async core private: not to be used by drivers */
struct list_head list;
};
/**
* v4l2_async_notifier - v4l2_device notifier data
* @num_subdevs:number of subdevices
* @subdevs: array of pointers to subdevice descriptors
* @v4l2_dev: pointer to struct v4l2_device
* @waiting: list of struct v4l2_async_subdev, waiting for their drivers
* @done: list of struct v4l2_subdev, already probed
* @list: member in a global list of notifiers
* @bound: a subdevice driver has successfully probed one of subdevices
* @complete: all subdevices have been probed successfully
* @unbind: a subdevice is leaving
*/
struct v4l2_async_notifier {
unsigned int num_subdevs;
struct v4l2_async_subdev **subdevs;
struct v4l2_device *v4l2_dev;
struct list_head waiting;
struct list_head done;
struct list_head list;
int (*bound)(struct v4l2_async_notifier *notifier,
struct v4l2_subdev *subdev,
struct v4l2_async_subdev *asd);
int (*complete)(struct v4l2_async_notifier *notifier);
void (*unbind)(struct v4l2_async_notifier *notifier,
struct v4l2_subdev *subdev,
struct v4l2_async_subdev *asd);
};
int v4l2_async_notifier_register(struct v4l2_device *v4l2_dev,
struct v4l2_async_notifier *notifier);
void v4l2_async_notifier_unregister(struct v4l2_async_notifier *notifier);
int v4l2_async_register_subdev(struct v4l2_subdev *sd);
void v4l2_async_unregister_subdev(struct v4l2_subdev *sd);
#endif