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pvvx 2016-11-22 07:48:09 +03:00
parent 03ed2886cb
commit bda4d33012
109 changed files with 73065 additions and 85 deletions
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105
RTL00_SDKV35a/component/common/video/v4l2/inc/media-device.h Normal file
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/*
* Media device
*
* Copyright (C) 2010 Nokia Corporation
*
* Contacts: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
* Sakari Ailus <sakari.ailus@iki.fi>
*
* 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#ifndef _MEDIA_DEVICE_H
#define _MEDIA_DEVICE_H
#if 0
#include <linux/list.h>
#include <linux/mutex.h>
#include <linux/spinlock.h>
#endif
#include "v4l2-osdep.h"
#include "media-devnode.h"
#include "media-entity.h"
//struct device;
/**
* struct media_device - Media device
* @dev: Parent device
* @devnode: Media device node
* @model: Device model name
* @serial: Device serial number (optional)
* @bus_info: Unique and stable device location identifier
* @hw_revision: Hardware device revision
* @driver_version: Device driver version
* @entity_id: ID of the next entity to be registered
* @entities: List of registered entities
* @lock: Entities list lock
* @graph_mutex: Entities graph operation lock
* @link_notify: Link state change notification callback
*
* This structure represents an abstract high-level media device. It allows easy
* access to entities and provides basic media device-level support. The
* structure can be allocated directly or embedded in a larger structure.
*
* The parent @dev is a physical device. It must be set before registering the
* media device.
*
* @model is a descriptive model name exported through sysfs. It doesn't have to
* be unique.
*/
struct media_device {
/* dev->driver_data points to this struct. */
//struct device *dev;
struct media_devnode devnode;
char model[32];
char serial[40];
char bus_info[32];
u32 hw_revision;
u32 driver_version;
u32 entity_id;
struct list_head entities;
/* Protects the entities list */
spinlock_t lock;
/* Serializes graph operations. */
//struct mutex graph_mutex;
_Mutex graph_mutex;
int (*link_notify)(struct media_link *link, u32 flags, unsigned int notification);
};
/* Supported link_notify @notification values. */
#define MEDIA_DEV_NOTIFY_PRE_LINK_CH 0
#define MEDIA_DEV_NOTIFY_POST_LINK_CH 1
/* media_devnode to media_device */
#define to_media_device(node) container_of(node, struct media_device, devnode)
int media_device_register(struct media_device *mdev);
void media_device_unregister(struct media_device *mdev);
int media_device_register_entity(struct media_device *mdev,
struct media_entity *entity);
void media_device_unregister_entity(struct media_entity *entity);
/* Iterate over all entities. */
#define media_device_for_each_entity(entity, mdev, type) \
list_for_each_entry(entity, &(mdev)->entities, list, type)
#endif

104
RTL00_SDKV35a/component/common/video/v4l2/inc/media-devnode.h Normal file
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/*
* Media device node
*
* Copyright (C) 2010 Nokia Corporation
*
* Contacts: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
* Sakari Ailus <sakari.ailus@iki.fi>
*
* 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* --
*
* Common functions for media-related drivers to register and unregister media
* device nodes.
*/
#ifndef _MEDIA_DEVNODE_H
#define _MEDIA_DEVNODE_H
#if 0
#include <linux/poll.h>
#include <linux/fs.h>
#include <linux/device.h>
#include <linux/cdev.h>
#endif
/*
* Flag to mark the media_devnode struct as registered. Drivers must not touch
* this flag directly, it will be set and cleared by media_devnode_register and
* media_devnode_unregister.
*/
#define MEDIA_FLAG_REGISTERED 0
struct media_file_operations {
//struct module *owner;
#if 0
ssize_t (*read) (char __user *, size_t, loff_t *);
ssize_t (*write) (const char __user *, size_t, loff_t *);
unsigned int (*poll) (struct poll_table_struct *);
#endif
long (*ioctl) (unsigned int, unsigned long);
long (*compat_ioctl) (unsigned int, unsigned long);
int (*open) ();
int (*release) ();
};
/**
* struct media_devnode - Media device node
* @parent: parent device
* @minor: device node minor number
* @flags: flags, combination of the MEDIA_FLAG_* constants
*
* This structure represents a media-related device node.
*
* The @parent is a physical device. It must be set by core or device drivers
* before registering the node.
*/
struct media_devnode {
/* device ops */
const struct media_file_operations *fops;
/* sysfs */
#if 0
struct device dev; /* media device */
struct cdev cdev; /* character device */
struct device *parent; /* device parent */
#endif
/* device info */
int minor;
unsigned long flags; /* Use bitops to access flags */
/* callbacks */
void (*release)(struct media_devnode *mdev);
};
/* dev to media_devnode */
#define to_media_devnode(minor) container_of(minor, struct media_devnode, dev)
int media_devnode_register(struct media_devnode *mdev);
void media_devnode_unregister(struct media_devnode *mdev);
#if 0
static inline struct media_devnode *media_devnode_data()
{
return private_data;
}
#endif
static inline int media_devnode_is_registered(struct media_devnode *mdev)
{
return test_bit(MEDIA_FLAG_REGISTERED, &mdev->flags);
}
#endif /* _MEDIA_DEVNODE_H */

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RTL00_SDKV35a/component/common/video/v4l2/inc/media-entity.h Normal file
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/*
* Media entity
*
* Copyright (C) 2010 Nokia Corporation
*
* Contacts: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
* Sakari Ailus <sakari.ailus@iki.fi>
*
* 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#ifndef _MEDIA_ENTITY_H
#define _MEDIA_ENTITY_H
#if 0
#include <linux/bitops.h>
#include <linux/list.h>
#include <linux/media.h>
#endif
#include "v4l2-osdep.h"
struct media_pipeline {
int media_test;
};
struct media_link {
struct media_pad *source; /* Source pad */
struct media_pad *sink; /* Sink pad */
struct media_link *reverse; /* Link in the reverse direction */
unsigned long flags; /* Link flags (MEDIA_LNK_FL_*) */
};
struct media_pad {
struct media_entity *entity; /* Entity this pad belongs to */
u16 index; /* Pad index in the entity pads array */
unsigned long flags; /* Pad flags (MEDIA_PAD_FL_*) */
};
struct media_entity_operations {
int (*link_setup)(struct media_entity *entity,
const struct media_pad *local,
const struct media_pad *remote, u32 flags);
int (*link_validate)(struct media_link *link);
};
struct media_entity {
//struct LISlist;
struct media_device *parent; /* Media device this entity belongs to*/
u32 id; /* Entity ID, unique in the parent media
* device context */
const char *name; /* Entity name */
u32 type; /* Entity type (MEDIA_ENT_T_*) */
u32 revision; /* Entity revision, driver specific */
unsigned long flags; /* Entity flags (MEDIA_ENT_FL_*) */
u32 group_id; /* Entity group ID */
u16 num_pads; /* Number of sink and source pads */
u16 num_links; /* Number of existing links, both
* enabled and disabled */
u16 num_backlinks; /* Number of backlinks */
u16 max_links; /* Maximum number of links */
struct media_pad *pads; /* Pads array (num_pads elements) */
struct media_link *links; /* Links array (max_links elements)*/
const struct media_entity_operations *ops; /* Entity operations */
/* Reference counts must never be negative, but are signed integers on
* purpose: a simple WARN_ON(<0) check can be used to detect reference
* count bugs that would make them negative.
*/
int stream_count; /* Stream count for the entity. */
int use_count; /* Use count for the entity. */
struct media_pipeline *pipe; /* Pipeline this entity belongs to. */
union {
/* Node specifications */
struct {
u32 major;
u32 minor;
} v4l;
struct {
u32 major;
u32 minor;
} fb;
struct {
u32 card;
u32 device;
u32 subdevice;
} alsa;
int dvb;
/* Sub-device specifications */
/* Nothing needed yet */
} info;
};
#if 0
static inline u32 media_entity_type(struct media_entity *entity)
{
return entity->type & MEDIA_ENT_TYPE_MASK;
}
static inline u32 media_entity_subtype(struct media_entity *entity)
{
return entity->type & MEDIA_ENT_SUBTYPE_MASK;
}
#define MEDIA_ENTITY_ENUM_MAX_DEPTH 16
#define MEDIA_ENTITY_ENUM_MAX_ID 64
struct media_entity_graph {
struct {
struct media_entity *entity;
int link;
} stack[MEDIA_ENTITY_ENUM_MAX_DEPTH];
DECLARE_BITMAP(entities, MEDIA_ENTITY_ENUM_MAX_ID);
int top;
};
int media_entity_init(struct media_entity *entity, u16 num_pads,
struct media_pad *pads, u16 extra_links);
void media_entity_cleanup(struct media_entity *entity);
int media_entity_create_link(struct media_entity *source, u16 source_pad,
struct media_entity *sink, u16 sink_pad, u32 flags);
void __media_entity_remove_links(struct media_entity *entity);
void media_entity_remove_links(struct media_entity *entity);
int __media_entity_setup_link(struct media_link *link, u32 flags);
int media_entity_setup_link(struct media_link *link, u32 flags);
struct media_link *media_entity_find_link(struct media_pad *source,
struct media_pad *sink);
struct media_pad *media_entity_remote_pad(struct media_pad *pad);
struct media_entity *media_entity_get(struct media_entity *entity);
void media_entity_put(struct media_entity *entity);
void media_entity_graph_walk_start(struct media_entity_graph *graph,
struct media_entity *entity);
struct media_entity *
media_entity_graph_walk_next(struct media_entity_graph *graph);
int media_entity_pipeline_start(struct media_entity *entity,
struct media_pipeline *pipe);
void media_entity_pipeline_stop(struct media_entity *entity);
#define media_entity_call(entity, operation, args...) \
(((entity)->ops && (entity)->ops->operation) ? \
(entity)->ops->operation((entity) , ##args) : -ENOIOCTLCMD)
#endif
#endif

71
RTL00_SDKV35a/component/common/video/v4l2/inc/uapi_v4l2-common.h Normal file
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/*
* include/linux/v4l2-common.h
*
* Common V4L2 and V4L2 subdev definitions.
*
* Users are advised to #include this file either through videodev2.h
* (V4L2) or through v4l2-subdev.h (V4L2 subdev) rather than to refer
* to this file directly.
*
* Copyright (C) 2012 Nokia Corporation
* Contact: Sakari Ailus <sakari.ailus@iki.fi>
*
* 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
*
*/
#ifndef __V4L2_COMMON__
#define __V4L2_COMMON__
/*
*
* Selection interface definitions
*
*/
/* Current cropping area */
#define V4L2_SEL_TGT_CROP 0x0000
/* Default cropping area */
#define V4L2_SEL_TGT_CROP_DEFAULT 0x0001
/* Cropping bounds */
#define V4L2_SEL_TGT_CROP_BOUNDS 0x0002
/* Current composing area */
#define V4L2_SEL_TGT_COMPOSE 0x0100
/* Default composing area */
#define V4L2_SEL_TGT_COMPOSE_DEFAULT 0x0101
/* Composing bounds */
#define V4L2_SEL_TGT_COMPOSE_BOUNDS 0x0102
/* Current composing area plus all padding pixels */
#define V4L2_SEL_TGT_COMPOSE_PADDED 0x0103
/* Backward compatibility target definitions --- to be removed. */
#define V4L2_SEL_TGT_CROP_ACTIVE V4L2_SEL_TGT_CROP
#define V4L2_SEL_TGT_COMPOSE_ACTIVE V4L2_SEL_TGT_COMPOSE
#define V4L2_SUBDEV_SEL_TGT_CROP_ACTUAL V4L2_SEL_TGT_CROP
#define V4L2_SUBDEV_SEL_TGT_COMPOSE_ACTUAL V4L2_SEL_TGT_COMPOSE
#define V4L2_SUBDEV_SEL_TGT_CROP_BOUNDS V4L2_SEL_TGT_CROP_BOUNDS
#define V4L2_SUBDEV_SEL_TGT_COMPOSE_BOUNDS V4L2_SEL_TGT_COMPOSE_BOUNDS
/* Selection flags */
#define V4L2_SEL_FLAG_GE (1 << 0)
#define V4L2_SEL_FLAG_LE (1 << 1)
#define V4L2_SEL_FLAG_KEEP_CONFIG (1 << 2)
/* Backward compatibility flag definitions --- to be removed. */
#define V4L2_SUBDEV_SEL_FLAG_SIZE_GE V4L2_SEL_FLAG_GE
#define V4L2_SUBDEV_SEL_FLAG_SIZE_LE V4L2_SEL_FLAG_LE
#define V4L2_SUBDEV_SEL_FLAG_KEEP_CONFIG V4L2_SEL_FLAG_KEEP_CONFIG
#endif /* __V4L2_COMMON__ */

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RTL00_SDKV35a/component/common/video/v4l2/inc/uapi_videodev2.h Normal file
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/*
* 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
#if 0
#include <linux/list.h>
#include <linux/mutex.h>
#endif
#include "v4l2-osdep.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)(const char *dev_init_name, 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

59
RTL00_SDKV35a/component/common/video/v4l2/inc/v4l2-clk.h Normal file
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/*
* V4L2 clock service
*
* 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.
*
* ATTENTION: This is a temporary API and it shall be replaced by the generic
* clock API, when the latter becomes widely available.
*/
#ifndef MEDIA_V4L2_CLK_H
#define MEDIA_V4L2_CLK_H
#if 0
#include <linux/atomic.h>
#include <linux/list.h>
#include <linux/mutex.h>
#endif
#include "v4l2-osdep.h"
//struct module;
//struct device;
struct v4l2_clk {
struct LIST_HEADER list;
const struct v4l2_clk_ops *ops;
const char *dev_id;
const char *id;
int enable;
//struct mutex lock; /* Protect the enable count */
_Mutex lock;
atomic_t use_count;
void *priv;
};
struct v4l2_clk_ops {
//struct module *owner;
int (*enable)(struct v4l2_clk *clk);
void (*disable)(struct v4l2_clk *clk);
unsigned long (*get_rate)(struct v4l2_clk *clk);
int (*set_rate)(struct v4l2_clk *clk, unsigned long);
};
struct v4l2_clk *v4l2_clk_register(const struct v4l2_clk_ops *ops,
const char *dev_name,
const char *name, void *priv);
void v4l2_clk_unregister(struct v4l2_clk *clk);
struct v4l2_clk *v4l2_clk_get(const char *id);
void v4l2_clk_put(struct v4l2_clk *clk);
int v4l2_clk_enable(struct v4l2_clk *clk);
void v4l2_clk_disable(struct v4l2_clk *clk);
unsigned long v4l2_clk_get_rate(struct v4l2_clk *clk);
int v4l2_clk_set_rate(struct v4l2_clk *clk, unsigned long rate);
#endif

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/*
v4l2 common internal API header
This header contains internal shared ioctl definitions for use by the
internal low-level v4l2 drivers.
Each ioctl begins with VIDIOC_INT_ to clearly mark that it is an internal
define,
Copyright (C) 2005 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_COMMON_H_
#define V4L2_COMMON_H_
#include "v4l2-dev.h"
/* Common printk constucts for v4l-i2c drivers. These macros create a unique
prefix consisting of the driver name, the adapter number and the i2c
address. */
#if 0
#define v4l_printk(level, name, adapter, addr, fmt, arg...) \
printk(level "%s %d-%04x: " fmt, name, i2c_adapter_id(adapter), addr , ## arg)
#define v4l_client_printk(level, client, fmt, arg...) \
v4l_printk(level, (client)->driver->driver.name, (client)->adapter, \
(client)->addr, fmt , ## arg)
#define v4l_err(client, fmt, arg...) \
v4l_client_printk(KERN_ERR, client, fmt , ## arg)
#define v4l_warn(client, fmt, arg...) \
v4l_client_printk(KERN_WARNING, client, fmt , ## arg)
#define v4l_info(client, fmt, arg...) \
v4l_client_printk(KERN_INFO, client, fmt , ## arg)
/* These three macros assume that the debug level is set with a module
parameter called 'debug'. */
#define v4l_dbg(level, debug, client, fmt, arg...) \
do { \
if (debug >= (level)) \
v4l_client_printk(KERN_DEBUG, client, fmt , ## arg); \
} while (0)
#endif
/* ------------------------------------------------------------------------- */
#if 0
/* These printk constructs can be used with v4l2_device and v4l2_subdev */
#define v4l2_printk(level, dev, fmt, arg...) \
printk(level "%s: " fmt, (dev)->name , ## arg)
#define v4l2_err(dev, fmt, arg...) \
v4l2_printk(KERN_ERR, dev, fmt , ## arg)
#define v4l2_warn(dev, fmt, arg...) \
v4l2_printk(KERN_WARNING, dev, fmt , ## arg)
#define v4l2_info(dev, fmt, arg...) \
v4l2_printk(KERN_INFO, dev, fmt , ## arg)
/* These three macros assume that the debug level is set with a module
parameter called 'debug'. */
#define v4l2_dbg(level, debug, dev, fmt, arg...) \
do { \
if (debug >= (level)) \
v4l2_printk(KERN_DEBUG, dev, fmt , ## arg); \
} while (0)
#endif
/* ------------------------------------------------------------------------- */
//edit by Ian -- remove control helper functions
#if 0
/* Control helper functions */
int v4l2_ctrl_check(struct v4l2_ext_control *ctrl, struct v4l2_queryctrl *qctrl,
const char * const *menu_items);
const char *v4l2_ctrl_get_name(u32 id);
const char * const *v4l2_ctrl_get_menu(u32 id);
const s64 *v4l2_ctrl_get_int_menu(u32 id, u32 *len);
int v4l2_ctrl_query_fill(struct v4l2_queryctrl *qctrl, s32 min, s32 max, s32 step, s32 def);
int v4l2_ctrl_query_menu(struct v4l2_querymenu *qmenu,
struct v4l2_queryctrl *qctrl, const char * const *menu_items);
#define V4L2_CTRL_MENU_IDS_END (0xffffffff)
int v4l2_ctrl_query_menu_valid_items(struct v4l2_querymenu *qmenu, const u32 *ids);
#endif
/* Note: ctrl_classes points to an array of u32 pointers. Each u32 array is a
0-terminated array of control IDs. Each array must be sorted low to high
and belong to the same control class. The array of u32 pointers must also
be sorted, from low class IDs to high class IDs. */
//u32 v4l2_ctrl_next(const u32 * const *ctrl_classes, u32 id);
/* ------------------------------------------------------------------------- */
/* I2C Helper functions */
#if 0
struct i2c_driver;
struct i2c_adapter;
struct i2c_client;
struct i2c_device_id;
struct v4l2_device;
struct v4l2_subdev;
struct v4l2_subdev_ops;
/* Load an i2c module and return an initialized v4l2_subdev struct.
The client_type argument is the name of the chip that's on the adapter. */
struct v4l2_subdev *v4l2_i2c_new_subdev(struct v4l2_device *v4l2_dev,
struct i2c_adapter *adapter, const char *client_type,
u8 addr, const unsigned short *probe_addrs);
struct i2c_board_info;
struct v4l2_subdev *v4l2_i2c_new_subdev_board(struct v4l2_device *v4l2_dev,
struct i2c_adapter *adapter, struct i2c_board_info *info,
const unsigned short *probe_addrs);
/* Initialize a v4l2_subdev with data from an i2c_client struct */
void v4l2_i2c_subdev_init(struct v4l2_subdev *sd, struct i2c_client *client,
const struct v4l2_subdev_ops *ops);
/* Return i2c client address of v4l2_subdev. */
unsigned short v4l2_i2c_subdev_addr(struct v4l2_subdev *sd);
enum v4l2_i2c_tuner_type {
ADDRS_RADIO, /* Radio tuner addresses */
ADDRS_DEMOD, /* Demod tuner addresses */
ADDRS_TV, /* TV tuner addresses */
/* TV tuner addresses if demod is present, this excludes
addresses used by the demodulator from the list of
candidates. */
ADDRS_TV_WITH_DEMOD,
};
/* Return a list of I2C tuner addresses to probe. Use only if the tuner
addresses are unknown. */
const unsigned short *v4l2_i2c_tuner_addrs(enum v4l2_i2c_tuner_type type);
/* ------------------------------------------------------------------------- */
/* SPI Helper functions */
#if defined(CONFIG_SPI)
#include <linux/spi/spi.h>
struct spi_device;
/* Load an spi module and return an initialized v4l2_subdev struct.
The client_type argument is the name of the chip that's on the adapter. */
struct v4l2_subdev *v4l2_spi_new_subdev(struct v4l2_device *v4l2_dev,
struct spi_master *master, struct spi_board_info *info);
/* Initialize a v4l2_subdev with data from an spi_device struct */
void v4l2_spi_subdev_init(struct v4l2_subdev *sd, struct spi_device *spi,
const struct v4l2_subdev_ops *ops);
#endif
#endif
/* ------------------------------------------------------------------------- */
#if 0
/* Note: these remaining ioctls/structs should be removed as well, but they are
still used in tuner-simple.c (TUNER_SET_CONFIG), cx18/ivtv (RESET) and
v4l2-int-device.h (v4l2_routing). To remove these ioctls some more cleanup
is needed in those modules. */
/* s_config */
struct v4l2_priv_tun_config {
int tuner;
void *priv;
};
#define TUNER_SET_CONFIG _IOW('d', 92, struct v4l2_priv_tun_config)
#define VIDIOC_INT_RESET _IOW ('d', 102, u32)
struct v4l2_routing {
u32 input;
u32 output;
};
#endif
/* ------------------------------------------------------------------------- */
/* Miscellaneous helper functions */
#if 0
void v4l_bound_align_image(u32*w, unsigned int wmin,
unsigned int wmax, unsigned int walign,
u32 *h, unsigned int hmin,
unsigned int hmax, unsigned int halign,
unsigned int salign);
struct v4l2_discrete_probe {
const struct v4l2_frmsize_discrete *sizes;
int num_sizes;
};
const struct v4l2_frmsize_discrete *v4l2_find_nearest_format(
const struct v4l2_discrete_probe *probe,
s32 width, s32 height);
#endif
//void v4l2_get_timestamp(struct timeval *tv);
#endif /* V4L2_COMMON_H_ */

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/*
* Video for Linux Two controls header file
*
* Copyright (C) 1999-2012 the contributors
*
* 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.
*
* Alternatively you can redistribute this file under the terms of the
* BSD license as stated below:
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* 3. The names of its contributors may not be used to endorse or promote
* products derived from this software without specific prior written
* permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
* TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* The contents of this header was split off from videodev2.h. All control
* definitions should be added to this header, which is included by
* videodev2.h.
*/
#ifndef __LINUX_V4L2_CONTROLS_H
#define __LINUX_V4L2_CONTROLS_H
/* Control classes */
#define V4L2_CTRL_CLASS_USER 0x00980000 /* Old-style 'user' controls */
#define V4L2_CTRL_CLASS_MPEG 0x00990000 /* MPEG-compression controls */
#define V4L2_CTRL_CLASS_CAMERA 0x009a0000 /* Camera class controls */
#define V4L2_CTRL_CLASS_FM_TX 0x009b0000 /* FM Modulator controls */
#define V4L2_CTRL_CLASS_FLASH 0x009c0000 /* Camera flash controls */
#define V4L2_CTRL_CLASS_JPEG 0x009d0000 /* JPEG-compression controls */
#define V4L2_CTRL_CLASS_IMAGE_SOURCE 0x009e0000 /* Image source controls */
#define V4L2_CTRL_CLASS_IMAGE_PROC 0x009f0000 /* Image processing controls */
#define V4L2_CTRL_CLASS_DV 0x00a00000 /* Digital Video controls */
#define V4L2_CTRL_CLASS_FM_RX 0x00a10000 /* FM Receiver controls */
/* User-class control IDs */
#define V4L2_CID_BASE (V4L2_CTRL_CLASS_USER | 0x900)
#define V4L2_CID_USER_BASE V4L2_CID_BASE
#define V4L2_CID_USER_CLASS (V4L2_CTRL_CLASS_USER | 1)
#define V4L2_CID_BRIGHTNESS (V4L2_CID_BASE+0)
#define V4L2_CID_CONTRAST (V4L2_CID_BASE+1)
#define V4L2_CID_SATURATION (V4L2_CID_BASE+2)
#define V4L2_CID_HUE (V4L2_CID_BASE+3)
#define V4L2_CID_AUDIO_VOLUME (V4L2_CID_BASE+5)
#define V4L2_CID_AUDIO_BALANCE (V4L2_CID_BASE+6)
#define V4L2_CID_AUDIO_BASS (V4L2_CID_BASE+7)
#define V4L2_CID_AUDIO_TREBLE (V4L2_CID_BASE+8)
#define V4L2_CID_AUDIO_MUTE (V4L2_CID_BASE+9)
#define V4L2_CID_AUDIO_LOUDNESS (V4L2_CID_BASE+10)
#define V4L2_CID_BLACK_LEVEL (V4L2_CID_BASE+11) /* Deprecated */
#define V4L2_CID_AUTO_WHITE_BALANCE (V4L2_CID_BASE+12)
#define V4L2_CID_DO_WHITE_BALANCE (V4L2_CID_BASE+13)
#define V4L2_CID_RED_BALANCE (V4L2_CID_BASE+14)
#define V4L2_CID_BLUE_BALANCE (V4L2_CID_BASE+15)
#define V4L2_CID_GAMMA (V4L2_CID_BASE+16)
#define V4L2_CID_WHITENESS (V4L2_CID_GAMMA) /* Deprecated */
#define V4L2_CID_EXPOSURE (V4L2_CID_BASE+17)
#define V4L2_CID_AUTOGAIN (V4L2_CID_BASE+18)
#define V4L2_CID_GAIN (V4L2_CID_BASE+19)
#define V4L2_CID_HFLIP (V4L2_CID_BASE+20)
#define V4L2_CID_VFLIP (V4L2_CID_BASE+21)
#define V4L2_CID_POWER_LINE_FREQUENCY (V4L2_CID_BASE+24)
enum v4l2_power_line_frequency {
V4L2_CID_POWER_LINE_FREQUENCY_DISABLED = 0,
V4L2_CID_POWER_LINE_FREQUENCY_50HZ = 1,
V4L2_CID_POWER_LINE_FREQUENCY_60HZ = 2,
V4L2_CID_POWER_LINE_FREQUENCY_AUTO = 3,
};
#define V4L2_CID_HUE_AUTO (V4L2_CID_BASE+25)
#define V4L2_CID_WHITE_BALANCE_TEMPERATURE (V4L2_CID_BASE+26)
#define V4L2_CID_SHARPNESS (V4L2_CID_BASE+27)
#define V4L2_CID_BACKLIGHT_COMPENSATION (V4L2_CID_BASE+28)
#define V4L2_CID_CHROMA_AGC (V4L2_CID_BASE+29)
#define V4L2_CID_COLOR_KILLER (V4L2_CID_BASE+30)
#define V4L2_CID_COLORFX (V4L2_CID_BASE+31)
enum v4l2_colorfx {
V4L2_COLORFX_NONE = 0,
V4L2_COLORFX_BW = 1,
V4L2_COLORFX_SEPIA = 2,
V4L2_COLORFX_NEGATIVE = 3,
V4L2_COLORFX_EMBOSS = 4,
V4L2_COLORFX_SKETCH = 5,
V4L2_COLORFX_SKY_BLUE = 6,
V4L2_COLORFX_GRASS_GREEN = 7,
V4L2_COLORFX_SKIN_WHITEN = 8,
V4L2_COLORFX_VIVID = 9,
V4L2_COLORFX_AQUA = 10,
V4L2_COLORFX_ART_FREEZE = 11,
V4L2_COLORFX_SILHOUETTE = 12,
V4L2_COLORFX_SOLARIZATION = 13,
V4L2_COLORFX_ANTIQUE = 14,
V4L2_COLORFX_SET_CBCR = 15,
};
#define V4L2_CID_AUTOBRIGHTNESS (V4L2_CID_BASE+32)
#define V4L2_CID_BAND_STOP_FILTER (V4L2_CID_BASE+33)
#define V4L2_CID_ROTATE (V4L2_CID_BASE+34)
#define V4L2_CID_BG_COLOR (V4L2_CID_BASE+35)
#define V4L2_CID_CHROMA_GAIN (V4L2_CID_BASE+36)
#define V4L2_CID_ILLUMINATORS_1 (V4L2_CID_BASE+37)
#define V4L2_CID_ILLUMINATORS_2 (V4L2_CID_BASE+38)
#define V4L2_CID_MIN_BUFFERS_FOR_CAPTURE (V4L2_CID_BASE+39)
#define V4L2_CID_MIN_BUFFERS_FOR_OUTPUT (V4L2_CID_BASE+40)
#define V4L2_CID_ALPHA_COMPONENT (V4L2_CID_BASE+41)
#define V4L2_CID_COLORFX_CBCR (V4L2_CID_BASE+42)
/* last CID + 1 */
#define V4L2_CID_LASTP1 (V4L2_CID_BASE+43)
/* USER-class private control IDs */
/* The base for the meye driver controls. See linux/meye.h for the list
* of controls. We reserve 16 controls for this driver. */
#define V4L2_CID_USER_MEYE_BASE (V4L2_CID_USER_BASE + 0x1000)
/* The base for the bttv driver controls.
* We reserve 32 controls for this driver. */
#define V4L2_CID_USER_BTTV_BASE (V4L2_CID_USER_BASE + 0x1010)
/* The base for the s2255 driver controls.
* We reserve 16 controls for this driver. */
#define V4L2_CID_USER_S2255_BASE (V4L2_CID_USER_BASE + 0x1030)
/* The base for the si476x driver controls. See include/media/si476x.h for the list
* of controls. Total of 16 controls is reserved for this driver */
#define V4L2_CID_USER_SI476X_BASE (V4L2_CID_USER_BASE + 0x1040)
/* MPEG-class control IDs */
/* The MPEG controls are applicable to all codec controls
* and the 'MPEG' part of the define is historical */
#define V4L2_CID_MPEG_BASE (V4L2_CTRL_CLASS_MPEG | 0x900)
#define V4L2_CID_MPEG_CLASS (V4L2_CTRL_CLASS_MPEG | 1)
/* MPEG streams, specific to multiplexed streams */
#define V4L2_CID_MPEG_STREAM_TYPE (V4L2_CID_MPEG_BASE+0)
enum v4l2_mpeg_stream_type {
V4L2_MPEG_STREAM_TYPE_MPEG2_PS = 0, /* MPEG-2 program stream */
V4L2_MPEG_STREAM_TYPE_MPEG2_TS = 1, /* MPEG-2 transport stream */
V4L2_MPEG_STREAM_TYPE_MPEG1_SS = 2, /* MPEG-1 system stream */
V4L2_MPEG_STREAM_TYPE_MPEG2_DVD = 3, /* MPEG-2 DVD-compatible stream */
V4L2_MPEG_STREAM_TYPE_MPEG1_VCD = 4, /* MPEG-1 VCD-compatible stream */
V4L2_MPEG_STREAM_TYPE_MPEG2_SVCD = 5, /* MPEG-2 SVCD-compatible stream */
};
#define V4L2_CID_MPEG_STREAM_PID_PMT (V4L2_CID_MPEG_BASE+1)
#define V4L2_CID_MPEG_STREAM_PID_AUDIO (V4L2_CID_MPEG_BASE+2)
#define V4L2_CID_MPEG_STREAM_PID_VIDEO (V4L2_CID_MPEG_BASE+3)
#define V4L2_CID_MPEG_STREAM_PID_PCR (V4L2_CID_MPEG_BASE+4)
#define V4L2_CID_MPEG_STREAM_PES_ID_AUDIO (V4L2_CID_MPEG_BASE+5)
#define V4L2_CID_MPEG_STREAM_PES_ID_VIDEO (V4L2_CID_MPEG_BASE+6)
#define V4L2_CID_MPEG_STREAM_VBI_FMT (V4L2_CID_MPEG_BASE+7)
enum v4l2_mpeg_stream_vbi_fmt {
V4L2_MPEG_STREAM_VBI_FMT_NONE = 0, /* No VBI in the MPEG stream */
V4L2_MPEG_STREAM_VBI_FMT_IVTV = 1, /* VBI in private packets, IVTV format */
};
/* MPEG audio controls specific to multiplexed streams */
#define V4L2_CID_MPEG_AUDIO_SAMPLING_FREQ (V4L2_CID_MPEG_BASE+100)
enum v4l2_mpeg_audio_sampling_freq {
V4L2_MPEG_AUDIO_SAMPLING_FREQ_44100 = 0,
V4L2_MPEG_AUDIO_SAMPLING_FREQ_48000 = 1,
V4L2_MPEG_AUDIO_SAMPLING_FREQ_32000 = 2,
};
#define V4L2_CID_MPEG_AUDIO_ENCODING (V4L2_CID_MPEG_BASE+101)
enum v4l2_mpeg_audio_encoding {
V4L2_MPEG_AUDIO_ENCODING_LAYER_1 = 0,
V4L2_MPEG_AUDIO_ENCODING_LAYER_2 = 1,
V4L2_MPEG_AUDIO_ENCODING_LAYER_3 = 2,
V4L2_MPEG_AUDIO_ENCODING_AAC = 3,
V4L2_MPEG_AUDIO_ENCODING_AC3 = 4,
};
#define V4L2_CID_MPEG_AUDIO_L1_BITRATE (V4L2_CID_MPEG_BASE+102)
enum v4l2_mpeg_audio_l1_bitrate {
V4L2_MPEG_AUDIO_L1_BITRATE_32K = 0,
V4L2_MPEG_AUDIO_L1_BITRATE_64K = 1,
V4L2_MPEG_AUDIO_L1_BITRATE_96K = 2,
V4L2_MPEG_AUDIO_L1_BITRATE_128K = 3,
V4L2_MPEG_AUDIO_L1_BITRATE_160K = 4,
V4L2_MPEG_AUDIO_L1_BITRATE_192K = 5,
V4L2_MPEG_AUDIO_L1_BITRATE_224K = 6,
V4L2_MPEG_AUDIO_L1_BITRATE_256K = 7,
V4L2_MPEG_AUDIO_L1_BITRATE_288K = 8,
V4L2_MPEG_AUDIO_L1_BITRATE_320K = 9,
V4L2_MPEG_AUDIO_L1_BITRATE_352K = 10,
V4L2_MPEG_AUDIO_L1_BITRATE_384K = 11,
V4L2_MPEG_AUDIO_L1_BITRATE_416K = 12,
V4L2_MPEG_AUDIO_L1_BITRATE_448K = 13,
};
#define V4L2_CID_MPEG_AUDIO_L2_BITRATE (V4L2_CID_MPEG_BASE+103)
enum v4l2_mpeg_audio_l2_bitrate {
V4L2_MPEG_AUDIO_L2_BITRATE_32K = 0,
V4L2_MPEG_AUDIO_L2_BITRATE_48K = 1,
V4L2_MPEG_AUDIO_L2_BITRATE_56K = 2,
V4L2_MPEG_AUDIO_L2_BITRATE_64K = 3,
V4L2_MPEG_AUDIO_L2_BITRATE_80K = 4,
V4L2_MPEG_AUDIO_L2_BITRATE_96K = 5,
V4L2_MPEG_AUDIO_L2_BITRATE_112K = 6,
V4L2_MPEG_AUDIO_L2_BITRATE_128K = 7,
V4L2_MPEG_AUDIO_L2_BITRATE_160K = 8,
V4L2_MPEG_AUDIO_L2_BITRATE_192K = 9,
V4L2_MPEG_AUDIO_L2_BITRATE_224K = 10,
V4L2_MPEG_AUDIO_L2_BITRATE_256K = 11,
V4L2_MPEG_AUDIO_L2_BITRATE_320K = 12,
V4L2_MPEG_AUDIO_L2_BITRATE_384K = 13,
};
#define V4L2_CID_MPEG_AUDIO_L3_BITRATE (V4L2_CID_MPEG_BASE+104)
enum v4l2_mpeg_audio_l3_bitrate {
V4L2_MPEG_AUDIO_L3_BITRATE_32K = 0,
V4L2_MPEG_AUDIO_L3_BITRATE_40K = 1,
V4L2_MPEG_AUDIO_L3_BITRATE_48K = 2,
V4L2_MPEG_AUDIO_L3_BITRATE_56K = 3,
V4L2_MPEG_AUDIO_L3_BITRATE_64K = 4,
V4L2_MPEG_AUDIO_L3_BITRATE_80K = 5,
V4L2_MPEG_AUDIO_L3_BITRATE_96K = 6,
V4L2_MPEG_AUDIO_L3_BITRATE_112K = 7,
V4L2_MPEG_AUDIO_L3_BITRATE_128K = 8,
V4L2_MPEG_AUDIO_L3_BITRATE_160K = 9,
V4L2_MPEG_AUDIO_L3_BITRATE_192K = 10,
V4L2_MPEG_AUDIO_L3_BITRATE_224K = 11,
V4L2_MPEG_AUDIO_L3_BITRATE_256K = 12,
V4L2_MPEG_AUDIO_L3_BITRATE_320K = 13,
};
#define V4L2_CID_MPEG_AUDIO_MODE (V4L2_CID_MPEG_BASE+105)
enum v4l2_mpeg_audio_mode {
V4L2_MPEG_AUDIO_MODE_STEREO = 0,
V4L2_MPEG_AUDIO_MODE_JOINT_STEREO = 1,
V4L2_MPEG_AUDIO_MODE_DUAL = 2,
V4L2_MPEG_AUDIO_MODE_MONO = 3,
};
#define V4L2_CID_MPEG_AUDIO_MODE_EXTENSION (V4L2_CID_MPEG_BASE+106)
enum v4l2_mpeg_audio_mode_extension {
V4L2_MPEG_AUDIO_MODE_EXTENSION_BOUND_4 = 0,
V4L2_MPEG_AUDIO_MODE_EXTENSION_BOUND_8 = 1,
V4L2_MPEG_AUDIO_MODE_EXTENSION_BOUND_12 = 2,
V4L2_MPEG_AUDIO_MODE_EXTENSION_BOUND_16 = 3,
};
#define V4L2_CID_MPEG_AUDIO_EMPHASIS (V4L2_CID_MPEG_BASE+107)
enum v4l2_mpeg_audio_emphasis {
V4L2_MPEG_AUDIO_EMPHASIS_NONE = 0,
V4L2_MPEG_AUDIO_EMPHASIS_50_DIV_15_uS = 1,
V4L2_MPEG_AUDIO_EMPHASIS_CCITT_J17 = 2,
};
#define V4L2_CID_MPEG_AUDIO_CRC (V4L2_CID_MPEG_BASE+108)
enum v4l2_mpeg_audio_crc {
V4L2_MPEG_AUDIO_CRC_NONE = 0,
V4L2_MPEG_AUDIO_CRC_CRC16 = 1,
};
#define V4L2_CID_MPEG_AUDIO_MUTE (V4L2_CID_MPEG_BASE+109)
#define V4L2_CID_MPEG_AUDIO_AAC_BITRATE (V4L2_CID_MPEG_BASE+110)
#define V4L2_CID_MPEG_AUDIO_AC3_BITRATE (V4L2_CID_MPEG_BASE+111)
enum v4l2_mpeg_audio_ac3_bitrate {
V4L2_MPEG_AUDIO_AC3_BITRATE_32K = 0,
V4L2_MPEG_AUDIO_AC3_BITRATE_40K = 1,
V4L2_MPEG_AUDIO_AC3_BITRATE_48K = 2,
V4L2_MPEG_AUDIO_AC3_BITRATE_56K = 3,
V4L2_MPEG_AUDIO_AC3_BITRATE_64K = 4,
V4L2_MPEG_AUDIO_AC3_BITRATE_80K = 5,
V4L2_MPEG_AUDIO_AC3_BITRATE_96K = 6,
V4L2_MPEG_AUDIO_AC3_BITRATE_112K = 7,
V4L2_MPEG_AUDIO_AC3_BITRATE_128K = 8,
V4L2_MPEG_AUDIO_AC3_BITRATE_160K = 9,
V4L2_MPEG_AUDIO_AC3_BITRATE_192K = 10,
V4L2_MPEG_AUDIO_AC3_BITRATE_224K = 11,
V4L2_MPEG_AUDIO_AC3_BITRATE_256K = 12,
V4L2_MPEG_AUDIO_AC3_BITRATE_320K = 13,
V4L2_MPEG_AUDIO_AC3_BITRATE_384K = 14,
V4L2_MPEG_AUDIO_AC3_BITRATE_448K = 15,
V4L2_MPEG_AUDIO_AC3_BITRATE_512K = 16,
V4L2_MPEG_AUDIO_AC3_BITRATE_576K = 17,
V4L2_MPEG_AUDIO_AC3_BITRATE_640K = 18,
};
#define V4L2_CID_MPEG_AUDIO_DEC_PLAYBACK (V4L2_CID_MPEG_BASE+112)
enum v4l2_mpeg_audio_dec_playback {
V4L2_MPEG_AUDIO_DEC_PLAYBACK_AUTO = 0,
V4L2_MPEG_AUDIO_DEC_PLAYBACK_STEREO = 1,
V4L2_MPEG_AUDIO_DEC_PLAYBACK_LEFT = 2,
V4L2_MPEG_AUDIO_DEC_PLAYBACK_RIGHT = 3,
V4L2_MPEG_AUDIO_DEC_PLAYBACK_MONO = 4,
V4L2_MPEG_AUDIO_DEC_PLAYBACK_SWAPPED_STEREO = 5,
};
#define V4L2_CID_MPEG_AUDIO_DEC_MULTILINGUAL_PLAYBACK (V4L2_CID_MPEG_BASE+113)
/* MPEG video controls specific to multiplexed streams */
#define V4L2_CID_MPEG_VIDEO_ENCODING (V4L2_CID_MPEG_BASE+200)
enum v4l2_mpeg_video_encoding {
V4L2_MPEG_VIDEO_ENCODING_MPEG_1 = 0,
V4L2_MPEG_VIDEO_ENCODING_MPEG_2 = 1,
V4L2_MPEG_VIDEO_ENCODING_MPEG_4_AVC = 2,
};
#define V4L2_CID_MPEG_VIDEO_ASPECT (V4L2_CID_MPEG_BASE+201)
enum v4l2_mpeg_video_aspect {
V4L2_MPEG_VIDEO_ASPECT_1x1 = 0,
V4L2_MPEG_VIDEO_ASPECT_4x3 = 1,
V4L2_MPEG_VIDEO_ASPECT_16x9 = 2,
V4L2_MPEG_VIDEO_ASPECT_221x100 = 3,
};
#define V4L2_CID_MPEG_VIDEO_B_FRAMES (V4L2_CID_MPEG_BASE+202)
#define V4L2_CID_MPEG_VIDEO_GOP_SIZE (V4L2_CID_MPEG_BASE+203)
#define V4L2_CID_MPEG_VIDEO_GOP_CLOSURE (V4L2_CID_MPEG_BASE+204)
#define V4L2_CID_MPEG_VIDEO_PULLDOWN (V4L2_CID_MPEG_BASE+205)
#define V4L2_CID_MPEG_VIDEO_BITRATE_MODE (V4L2_CID_MPEG_BASE+206)
enum v4l2_mpeg_video_bitrate_mode {
V4L2_MPEG_VIDEO_BITRATE_MODE_VBR = 0,
V4L2_MPEG_VIDEO_BITRATE_MODE_CBR = 1,
};
#define V4L2_CID_MPEG_VIDEO_BITRATE (V4L2_CID_MPEG_BASE+207)
#define V4L2_CID_MPEG_VIDEO_BITRATE_PEAK (V4L2_CID_MPEG_BASE+208)
#define V4L2_CID_MPEG_VIDEO_TEMPORAL_DECIMATION (V4L2_CID_MPEG_BASE+209)
#define V4L2_CID_MPEG_VIDEO_MUTE (V4L2_CID_MPEG_BASE+210)
#define V4L2_CID_MPEG_VIDEO_MUTE_YUV (V4L2_CID_MPEG_BASE+211)
#define V4L2_CID_MPEG_VIDEO_DECODER_SLICE_INTERFACE (V4L2_CID_MPEG_BASE+212)
#define V4L2_CID_MPEG_VIDEO_DECODER_MPEG4_DEBLOCK_FILTER (V4L2_CID_MPEG_BASE+213)
#define V4L2_CID_MPEG_VIDEO_CYCLIC_INTRA_REFRESH_MB (V4L2_CID_MPEG_BASE+214)
#define V4L2_CID_MPEG_VIDEO_FRAME_RC_ENABLE (V4L2_CID_MPEG_BASE+215)
#define V4L2_CID_MPEG_VIDEO_HEADER_MODE (V4L2_CID_MPEG_BASE+216)
enum v4l2_mpeg_video_header_mode {
V4L2_MPEG_VIDEO_HEADER_MODE_SEPARATE = 0,
V4L2_MPEG_VIDEO_HEADER_MODE_JOINED_WITH_1ST_FRAME = 1,
};
#define V4L2_CID_MPEG_VIDEO_MAX_REF_PIC (V4L2_CID_MPEG_BASE+217)
#define V4L2_CID_MPEG_VIDEO_MB_RC_ENABLE (V4L2_CID_MPEG_BASE+218)
#define V4L2_CID_MPEG_VIDEO_MULTI_SLICE_MAX_BYTES (V4L2_CID_MPEG_BASE+219)
#define V4L2_CID_MPEG_VIDEO_MULTI_SLICE_MAX_MB (V4L2_CID_MPEG_BASE+220)
#define V4L2_CID_MPEG_VIDEO_MULTI_SLICE_MODE (V4L2_CID_MPEG_BASE+221)
enum v4l2_mpeg_video_multi_slice_mode {
V4L2_MPEG_VIDEO_MULTI_SLICE_MODE_SINGLE = 0,
V4L2_MPEG_VIDEO_MULTI_SICE_MODE_MAX_MB = 1,
V4L2_MPEG_VIDEO_MULTI_SICE_MODE_MAX_BYTES = 2,
};
#define V4L2_CID_MPEG_VIDEO_VBV_SIZE (V4L2_CID_MPEG_BASE+222)
#define V4L2_CID_MPEG_VIDEO_DEC_PTS (V4L2_CID_MPEG_BASE+223)
#define V4L2_CID_MPEG_VIDEO_DEC_FRAME (V4L2_CID_MPEG_BASE+224)
#define V4L2_CID_MPEG_VIDEO_VBV_DELAY (V4L2_CID_MPEG_BASE+225)
#define V4L2_CID_MPEG_VIDEO_REPEAT_SEQ_HEADER (V4L2_CID_MPEG_BASE+226)
#define V4L2_CID_MPEG_VIDEO_H263_I_FRAME_QP (V4L2_CID_MPEG_BASE+300)
#define V4L2_CID_MPEG_VIDEO_H263_P_FRAME_QP (V4L2_CID_MPEG_BASE+301)
#define V4L2_CID_MPEG_VIDEO_H263_B_FRAME_QP (V4L2_CID_MPEG_BASE+302)
#define V4L2_CID_MPEG_VIDEO_H263_MIN_QP (V4L2_CID_MPEG_BASE+303)
#define V4L2_CID_MPEG_VIDEO_H263_MAX_QP (V4L2_CID_MPEG_BASE+304)
#define V4L2_CID_MPEG_VIDEO_H264_I_FRAME_QP (V4L2_CID_MPEG_BASE+350)
#define V4L2_CID_MPEG_VIDEO_H264_P_FRAME_QP (V4L2_CID_MPEG_BASE+351)
#define V4L2_CID_MPEG_VIDEO_H264_B_FRAME_QP (V4L2_CID_MPEG_BASE+352)
#define V4L2_CID_MPEG_VIDEO_H264_MIN_QP (V4L2_CID_MPEG_BASE+353)
#define V4L2_CID_MPEG_VIDEO_H264_MAX_QP (V4L2_CID_MPEG_BASE+354)
#define V4L2_CID_MPEG_VIDEO_H264_8X8_TRANSFORM (V4L2_CID_MPEG_BASE+355)
#define V4L2_CID_MPEG_VIDEO_H264_CPB_SIZE (V4L2_CID_MPEG_BASE+356)
#define V4L2_CID_MPEG_VIDEO_H264_ENTROPY_MODE (V4L2_CID_MPEG_BASE+357)
enum v4l2_mpeg_video_h264_entropy_mode {
V4L2_MPEG_VIDEO_H264_ENTROPY_MODE_CAVLC = 0,
V4L2_MPEG_VIDEO_H264_ENTROPY_MODE_CABAC = 1,
};
#define V4L2_CID_MPEG_VIDEO_H264_I_PERIOD (V4L2_CID_MPEG_BASE+358)
#define V4L2_CID_MPEG_VIDEO_H264_LEVEL (V4L2_CID_MPEG_BASE+359)
enum v4l2_mpeg_video_h264_level {
V4L2_MPEG_VIDEO_H264_LEVEL_1_0 = 0,
V4L2_MPEG_VIDEO_H264_LEVEL_1B = 1,
V4L2_MPEG_VIDEO_H264_LEVEL_1_1 = 2,
V4L2_MPEG_VIDEO_H264_LEVEL_1_2 = 3,
V4L2_MPEG_VIDEO_H264_LEVEL_1_3 = 4,
V4L2_MPEG_VIDEO_H264_LEVEL_2_0 = 5,
V4L2_MPEG_VIDEO_H264_LEVEL_2_1 = 6,
V4L2_MPEG_VIDEO_H264_LEVEL_2_2 = 7,
V4L2_MPEG_VIDEO_H264_LEVEL_3_0 = 8,
V4L2_MPEG_VIDEO_H264_LEVEL_3_1 = 9,
V4L2_MPEG_VIDEO_H264_LEVEL_3_2 = 10,
V4L2_MPEG_VIDEO_H264_LEVEL_4_0 = 11,
V4L2_MPEG_VIDEO_H264_LEVEL_4_1 = 12,
V4L2_MPEG_VIDEO_H264_LEVEL_4_2 = 13,
V4L2_MPEG_VIDEO_H264_LEVEL_5_0 = 14,
V4L2_MPEG_VIDEO_H264_LEVEL_5_1 = 15,
};
#define V4L2_CID_MPEG_VIDEO_H264_LOOP_FILTER_ALPHA (V4L2_CID_MPEG_BASE+360)
#define V4L2_CID_MPEG_VIDEO_H264_LOOP_FILTER_BETA (V4L2_CID_MPEG_BASE+361)
#define V4L2_CID_MPEG_VIDEO_H264_LOOP_FILTER_MODE (V4L2_CID_MPEG_BASE+362)
enum v4l2_mpeg_video_h264_loop_filter_mode {
V4L2_MPEG_VIDEO_H264_LOOP_FILTER_MODE_ENABLED = 0,
V4L2_MPEG_VIDEO_H264_LOOP_FILTER_MODE_DISABLED = 1,
V4L2_MPEG_VIDEO_H264_LOOP_FILTER_MODE_DISABLED_AT_SLICE_BOUNDARY = 2,
};
#define V4L2_CID_MPEG_VIDEO_H264_PROFILE (V4L2_CID_MPEG_BASE+363)
enum v4l2_mpeg_video_h264_profile {
V4L2_MPEG_VIDEO_H264_PROFILE_BASELINE = 0,
V4L2_MPEG_VIDEO_H264_PROFILE_CONSTRAINED_BASELINE = 1,
V4L2_MPEG_VIDEO_H264_PROFILE_MAIN = 2,
V4L2_MPEG_VIDEO_H264_PROFILE_EXTENDED = 3,
V4L2_MPEG_VIDEO_H264_PROFILE_HIGH = 4,
V4L2_MPEG_VIDEO_H264_PROFILE_HIGH_10 = 5,
V4L2_MPEG_VIDEO_H264_PROFILE_HIGH_422 = 6,
V4L2_MPEG_VIDEO_H264_PROFILE_HIGH_444_PREDICTIVE = 7,
V4L2_MPEG_VIDEO_H264_PROFILE_HIGH_10_INTRA = 8,
V4L2_MPEG_VIDEO_H264_PROFILE_HIGH_422_INTRA = 9,
V4L2_MPEG_VIDEO_H264_PROFILE_HIGH_444_INTRA = 10,
V4L2_MPEG_VIDEO_H264_PROFILE_CAVLC_444_INTRA = 11,
V4L2_MPEG_VIDEO_H264_PROFILE_SCALABLE_BASELINE = 12,
V4L2_MPEG_VIDEO_H264_PROFILE_SCALABLE_HIGH = 13,
V4L2_MPEG_VIDEO_H264_PROFILE_SCALABLE_HIGH_INTRA = 14,
V4L2_MPEG_VIDEO_H264_PROFILE_STEREO_HIGH = 15,
V4L2_MPEG_VIDEO_H264_PROFILE_MULTIVIEW_HIGH = 16,
};
#define V4L2_CID_MPEG_VIDEO_H264_VUI_EXT_SAR_HEIGHT (V4L2_CID_MPEG_BASE+364)
#define V4L2_CID_MPEG_VIDEO_H264_VUI_EXT_SAR_WIDTH (V4L2_CID_MPEG_BASE+365)
#define V4L2_CID_MPEG_VIDEO_H264_VUI_SAR_ENABLE (V4L2_CID_MPEG_BASE+366)
#define V4L2_CID_MPEG_VIDEO_H264_VUI_SAR_IDC (V4L2_CID_MPEG_BASE+367)
enum v4l2_mpeg_video_h264_vui_sar_idc {
V4L2_MPEG_VIDEO_H264_VUI_SAR_IDC_UNSPECIFIED = 0,
V4L2_MPEG_VIDEO_H264_VUI_SAR_IDC_1x1 = 1,
V4L2_MPEG_VIDEO_H264_VUI_SAR_IDC_12x11 = 2,
V4L2_MPEG_VIDEO_H264_VUI_SAR_IDC_10x11 = 3,
V4L2_MPEG_VIDEO_H264_VUI_SAR_IDC_16x11 = 4,
V4L2_MPEG_VIDEO_H264_VUI_SAR_IDC_40x33 = 5,
V4L2_MPEG_VIDEO_H264_VUI_SAR_IDC_24x11 = 6,
V4L2_MPEG_VIDEO_H264_VUI_SAR_IDC_20x11 = 7,
V4L2_MPEG_VIDEO_H264_VUI_SAR_IDC_32x11 = 8,
V4L2_MPEG_VIDEO_H264_VUI_SAR_IDC_80x33 = 9,
V4L2_MPEG_VIDEO_H264_VUI_SAR_IDC_18x11 = 10,
V4L2_MPEG_VIDEO_H264_VUI_SAR_IDC_15x11 = 11,
V4L2_MPEG_VIDEO_H264_VUI_SAR_IDC_64x33 = 12,
V4L2_MPEG_VIDEO_H264_VUI_SAR_IDC_160x99 = 13,
V4L2_MPEG_VIDEO_H264_VUI_SAR_IDC_4x3 = 14,
V4L2_MPEG_VIDEO_H264_VUI_SAR_IDC_3x2 = 15,
V4L2_MPEG_VIDEO_H264_VUI_SAR_IDC_2x1 = 16,
V4L2_MPEG_VIDEO_H264_VUI_SAR_IDC_EXTENDED = 17,
};
#define V4L2_CID_MPEG_VIDEO_H264_SEI_FRAME_PACKING (V4L2_CID_MPEG_BASE+368)
#define V4L2_CID_MPEG_VIDEO_H264_SEI_FP_CURRENT_FRAME_0 (V4L2_CID_MPEG_BASE+369)
#define V4L2_CID_MPEG_VIDEO_H264_SEI_FP_ARRANGEMENT_TYPE (V4L2_CID_MPEG_BASE+370)
enum v4l2_mpeg_video_h264_sei_fp_arrangement_type {
V4L2_MPEG_VIDEO_H264_SEI_FP_ARRANGEMENT_TYPE_CHECKERBOARD = 0,
V4L2_MPEG_VIDEO_H264_SEI_FP_ARRANGEMENT_TYPE_COLUMN = 1,
V4L2_MPEG_VIDEO_H264_SEI_FP_ARRANGEMENT_TYPE_ROW = 2,
V4L2_MPEG_VIDEO_H264_SEI_FP_ARRANGEMENT_TYPE_SIDE_BY_SIDE = 3,
V4L2_MPEG_VIDEO_H264_SEI_FP_ARRANGEMENT_TYPE_TOP_BOTTOM = 4,
V4L2_MPEG_VIDEO_H264_SEI_FP_ARRANGEMENT_TYPE_TEMPORAL = 5,
};
#define V4L2_CID_MPEG_VIDEO_H264_FMO (V4L2_CID_MPEG_BASE+371)
#define V4L2_CID_MPEG_VIDEO_H264_FMO_MAP_TYPE (V4L2_CID_MPEG_BASE+372)
enum v4l2_mpeg_video_h264_fmo_map_type {
V4L2_MPEG_VIDEO_H264_FMO_MAP_TYPE_INTERLEAVED_SLICES = 0,
V4L2_MPEG_VIDEO_H264_FMO_MAP_TYPE_SCATTERED_SLICES = 1,
V4L2_MPEG_VIDEO_H264_FMO_MAP_TYPE_FOREGROUND_WITH_LEFT_OVER = 2,
V4L2_MPEG_VIDEO_H264_FMO_MAP_TYPE_BOX_OUT = 3,
V4L2_MPEG_VIDEO_H264_FMO_MAP_TYPE_RASTER_SCAN = 4,
V4L2_MPEG_VIDEO_H264_FMO_MAP_TYPE_WIPE_SCAN = 5,
V4L2_MPEG_VIDEO_H264_FMO_MAP_TYPE_EXPLICIT = 6,
};
#define V4L2_CID_MPEG_VIDEO_H264_FMO_SLICE_GROUP (V4L2_CID_MPEG_BASE+373)
#define V4L2_CID_MPEG_VIDEO_H264_FMO_CHANGE_DIRECTION (V4L2_CID_MPEG_BASE+374)
enum v4l2_mpeg_video_h264_fmo_change_dir {
V4L2_MPEG_VIDEO_H264_FMO_CHANGE_DIR_RIGHT = 0,
V4L2_MPEG_VIDEO_H264_FMO_CHANGE_DIR_LEFT = 1,
};
#define V4L2_CID_MPEG_VIDEO_H264_FMO_CHANGE_RATE (V4L2_CID_MPEG_BASE+375)
#define V4L2_CID_MPEG_VIDEO_H264_FMO_RUN_LENGTH (V4L2_CID_MPEG_BASE+376)
#define V4L2_CID_MPEG_VIDEO_H264_ASO (V4L2_CID_MPEG_BASE+377)
#define V4L2_CID_MPEG_VIDEO_H264_ASO_SLICE_ORDER (V4L2_CID_MPEG_BASE+378)
#define V4L2_CID_MPEG_VIDEO_H264_HIERARCHICAL_CODING (V4L2_CID_MPEG_BASE+379)
#define V4L2_CID_MPEG_VIDEO_H264_HIERARCHICAL_CODING_TYPE (V4L2_CID_MPEG_BASE+380)
enum v4l2_mpeg_video_h264_hierarchical_coding_type {
V4L2_MPEG_VIDEO_H264_HIERARCHICAL_CODING_B = 0,
V4L2_MPEG_VIDEO_H264_HIERARCHICAL_CODING_P = 1,
};
#define V4L2_CID_MPEG_VIDEO_H264_HIERARCHICAL_CODING_LAYER (V4L2_CID_MPEG_BASE+381)
#define V4L2_CID_MPEG_VIDEO_H264_HIERARCHICAL_CODING_LAYER_QP (V4L2_CID_MPEG_BASE+382)
#define V4L2_CID_MPEG_VIDEO_MPEG4_I_FRAME_QP (V4L2_CID_MPEG_BASE+400)
#define V4L2_CID_MPEG_VIDEO_MPEG4_P_FRAME_QP (V4L2_CID_MPEG_BASE+401)
#define V4L2_CID_MPEG_VIDEO_MPEG4_B_FRAME_QP (V4L2_CID_MPEG_BASE+402)
#define V4L2_CID_MPEG_VIDEO_MPEG4_MIN_QP (V4L2_CID_MPEG_BASE+403)
#define V4L2_CID_MPEG_VIDEO_MPEG4_MAX_QP (V4L2_CID_MPEG_BASE+404)
#define V4L2_CID_MPEG_VIDEO_MPEG4_LEVEL (V4L2_CID_MPEG_BASE+405)
enum v4l2_mpeg_video_mpeg4_level {
V4L2_MPEG_VIDEO_MPEG4_LEVEL_0 = 0,
V4L2_MPEG_VIDEO_MPEG4_LEVEL_0B = 1,
V4L2_MPEG_VIDEO_MPEG4_LEVEL_1 = 2,
V4L2_MPEG_VIDEO_MPEG4_LEVEL_2 = 3,
V4L2_MPEG_VIDEO_MPEG4_LEVEL_3 = 4,
V4L2_MPEG_VIDEO_MPEG4_LEVEL_3B = 5,
V4L2_MPEG_VIDEO_MPEG4_LEVEL_4 = 6,
V4L2_MPEG_VIDEO_MPEG4_LEVEL_5 = 7,
};
#define V4L2_CID_MPEG_VIDEO_MPEG4_PROFILE (V4L2_CID_MPEG_BASE+406)
enum v4l2_mpeg_video_mpeg4_profile {
V4L2_MPEG_VIDEO_MPEG4_PROFILE_SIMPLE = 0,
V4L2_MPEG_VIDEO_MPEG4_PROFILE_ADVANCED_SIMPLE = 1,
V4L2_MPEG_VIDEO_MPEG4_PROFILE_CORE = 2,
V4L2_MPEG_VIDEO_MPEG4_PROFILE_SIMPLE_SCALABLE = 3,
V4L2_MPEG_VIDEO_MPEG4_PROFILE_ADVANCED_CODING_EFFICIENCY = 4,
};
#define V4L2_CID_MPEG_VIDEO_MPEG4_QPEL (V4L2_CID_MPEG_BASE+407)
/* Control IDs for VP8 streams
* Although VP8 is not part of MPEG we add these controls to the MPEG class
* as that class is already handling other video compression standards
*/
#define V4L2_CID_MPEG_VIDEO_VPX_NUM_PARTITIONS (V4L2_CID_MPEG_BASE+500)
enum v4l2_vp8_num_partitions {
V4L2_CID_MPEG_VIDEO_VPX_1_PARTITION = 0,
V4L2_CID_MPEG_VIDEO_VPX_2_PARTITIONS = 1,
V4L2_CID_MPEG_VIDEO_VPX_4_PARTITIONS = 2,
V4L2_CID_MPEG_VIDEO_VPX_8_PARTITIONS = 3,
};
#define V4L2_CID_MPEG_VIDEO_VPX_IMD_DISABLE_4X4 (V4L2_CID_MPEG_BASE+501)
#define V4L2_CID_MPEG_VIDEO_VPX_NUM_REF_FRAMES (V4L2_CID_MPEG_BASE+502)
enum v4l2_vp8_num_ref_frames {
V4L2_CID_MPEG_VIDEO_VPX_1_REF_FRAME = 0,
V4L2_CID_MPEG_VIDEO_VPX_2_REF_FRAME = 1,
V4L2_CID_MPEG_VIDEO_VPX_3_REF_FRAME = 2,
};
#define V4L2_CID_MPEG_VIDEO_VPX_FILTER_LEVEL (V4L2_CID_MPEG_BASE+503)
#define V4L2_CID_MPEG_VIDEO_VPX_FILTER_SHARPNESS (V4L2_CID_MPEG_BASE+504)
#define V4L2_CID_MPEG_VIDEO_VPX_GOLDEN_FRAME_REF_PERIOD (V4L2_CID_MPEG_BASE+505)
#define V4L2_CID_MPEG_VIDEO_VPX_GOLDEN_FRAME_SEL (V4L2_CID_MPEG_BASE+506)
enum v4l2_vp8_golden_frame_sel {
V4L2_CID_MPEG_VIDEO_VPX_GOLDEN_FRAME_USE_PREV = 0,
V4L2_CID_MPEG_VIDEO_VPX_GOLDEN_FRAME_USE_REF_PERIOD = 1,
};
/* MPEG-class control IDs specific to the CX2341x driver as defined by V4L2 */
#define V4L2_CID_MPEG_CX2341X_BASE (V4L2_CTRL_CLASS_MPEG | 0x1000)
#define V4L2_CID_MPEG_CX2341X_VIDEO_SPATIAL_FILTER_MODE (V4L2_CID_MPEG_CX2341X_BASE+0)
enum v4l2_mpeg_cx2341x_video_spatial_filter_mode {
V4L2_MPEG_CX2341X_VIDEO_SPATIAL_FILTER_MODE_MANUAL = 0,
V4L2_MPEG_CX2341X_VIDEO_SPATIAL_FILTER_MODE_AUTO = 1,
};
#define V4L2_CID_MPEG_CX2341X_VIDEO_SPATIAL_FILTER (V4L2_CID_MPEG_CX2341X_BASE+1)
#define V4L2_CID_MPEG_CX2341X_VIDEO_LUMA_SPATIAL_FILTER_TYPE (V4L2_CID_MPEG_CX2341X_BASE+2)
enum v4l2_mpeg_cx2341x_video_luma_spatial_filter_type {
V4L2_MPEG_CX2341X_VIDEO_LUMA_SPATIAL_FILTER_TYPE_OFF = 0,
V4L2_MPEG_CX2341X_VIDEO_LUMA_SPATIAL_FILTER_TYPE_1D_HOR = 1,
V4L2_MPEG_CX2341X_VIDEO_LUMA_SPATIAL_FILTER_TYPE_1D_VERT = 2,
V4L2_MPEG_CX2341X_VIDEO_LUMA_SPATIAL_FILTER_TYPE_2D_HV_SEPARABLE = 3,
V4L2_MPEG_CX2341X_VIDEO_LUMA_SPATIAL_FILTER_TYPE_2D_SYM_NON_SEPARABLE = 4,
};
#define V4L2_CID_MPEG_CX2341X_VIDEO_CHROMA_SPATIAL_FILTER_TYPE (V4L2_CID_MPEG_CX2341X_BASE+3)
enum v4l2_mpeg_cx2341x_video_chroma_spatial_filter_type {
V4L2_MPEG_CX2341X_VIDEO_CHROMA_SPATIAL_FILTER_TYPE_OFF = 0,
V4L2_MPEG_CX2341X_VIDEO_CHROMA_SPATIAL_FILTER_TYPE_1D_HOR = 1,
};
#define V4L2_CID_MPEG_CX2341X_VIDEO_TEMPORAL_FILTER_MODE (V4L2_CID_MPEG_CX2341X_BASE+4)
enum v4l2_mpeg_cx2341x_video_temporal_filter_mode {
V4L2_MPEG_CX2341X_VIDEO_TEMPORAL_FILTER_MODE_MANUAL = 0,
V4L2_MPEG_CX2341X_VIDEO_TEMPORAL_FILTER_MODE_AUTO = 1,
};
#define V4L2_CID_MPEG_CX2341X_VIDEO_TEMPORAL_FILTER (V4L2_CID_MPEG_CX2341X_BASE+5)
#define V4L2_CID_MPEG_CX2341X_VIDEO_MEDIAN_FILTER_TYPE (V4L2_CID_MPEG_CX2341X_BASE+6)
enum v4l2_mpeg_cx2341x_video_median_filter_type {
V4L2_MPEG_CX2341X_VIDEO_MEDIAN_FILTER_TYPE_OFF = 0,
V4L2_MPEG_CX2341X_VIDEO_MEDIAN_FILTER_TYPE_HOR = 1,
V4L2_MPEG_CX2341X_VIDEO_MEDIAN_FILTER_TYPE_VERT = 2,
V4L2_MPEG_CX2341X_VIDEO_MEDIAN_FILTER_TYPE_HOR_VERT = 3,
V4L2_MPEG_CX2341X_VIDEO_MEDIAN_FILTER_TYPE_DIAG = 4,
};
#define V4L2_CID_MPEG_CX2341X_VIDEO_LUMA_MEDIAN_FILTER_BOTTOM (V4L2_CID_MPEG_CX2341X_BASE+7)
#define V4L2_CID_MPEG_CX2341X_VIDEO_LUMA_MEDIAN_FILTER_TOP (V4L2_CID_MPEG_CX2341X_BASE+8)
#define V4L2_CID_MPEG_CX2341X_VIDEO_CHROMA_MEDIAN_FILTER_BOTTOM (V4L2_CID_MPEG_CX2341X_BASE+9)
#define V4L2_CID_MPEG_CX2341X_VIDEO_CHROMA_MEDIAN_FILTER_TOP (V4L2_CID_MPEG_CX2341X_BASE+10)
#define V4L2_CID_MPEG_CX2341X_STREAM_INSERT_NAV_PACKETS (V4L2_CID_MPEG_CX2341X_BASE+11)
/* MPEG-class control IDs specific to the Samsung MFC 5.1 driver as defined by V4L2 */
#define V4L2_CID_MPEG_MFC51_BASE (V4L2_CTRL_CLASS_MPEG | 0x1100)
#define V4L2_CID_MPEG_MFC51_VIDEO_DECODER_H264_DISPLAY_DELAY (V4L2_CID_MPEG_MFC51_BASE+0)
#define V4L2_CID_MPEG_MFC51_VIDEO_DECODER_H264_DISPLAY_DELAY_ENABLE (V4L2_CID_MPEG_MFC51_BASE+1)
#define V4L2_CID_MPEG_MFC51_VIDEO_FRAME_SKIP_MODE (V4L2_CID_MPEG_MFC51_BASE+2)
enum v4l2_mpeg_mfc51_video_frame_skip_mode {
V4L2_MPEG_MFC51_VIDEO_FRAME_SKIP_MODE_DISABLED = 0,
V4L2_MPEG_MFC51_VIDEO_FRAME_SKIP_MODE_LEVEL_LIMIT = 1,
V4L2_MPEG_MFC51_VIDEO_FRAME_SKIP_MODE_BUF_LIMIT = 2,
};
#define V4L2_CID_MPEG_MFC51_VIDEO_FORCE_FRAME_TYPE (V4L2_CID_MPEG_MFC51_BASE+3)
enum v4l2_mpeg_mfc51_video_force_frame_type {
V4L2_MPEG_MFC51_VIDEO_FORCE_FRAME_TYPE_DISABLED = 0,
V4L2_MPEG_MFC51_VIDEO_FORCE_FRAME_TYPE_I_FRAME = 1,
V4L2_MPEG_MFC51_VIDEO_FORCE_FRAME_TYPE_NOT_CODED = 2,
};
#define V4L2_CID_MPEG_MFC51_VIDEO_PADDING (V4L2_CID_MPEG_MFC51_BASE+4)
#define V4L2_CID_MPEG_MFC51_VIDEO_PADDING_YUV (V4L2_CID_MPEG_MFC51_BASE+5)
#define V4L2_CID_MPEG_MFC51_VIDEO_RC_FIXED_TARGET_BIT (V4L2_CID_MPEG_MFC51_BASE+6)
#define V4L2_CID_MPEG_MFC51_VIDEO_RC_REACTION_COEFF (V4L2_CID_MPEG_MFC51_BASE+7)
#define V4L2_CID_MPEG_MFC51_VIDEO_H264_ADAPTIVE_RC_ACTIVITY (V4L2_CID_MPEG_MFC51_BASE+50)
#define V4L2_CID_MPEG_MFC51_VIDEO_H264_ADAPTIVE_RC_DARK (V4L2_CID_MPEG_MFC51_BASE+51)
#define V4L2_CID_MPEG_MFC51_VIDEO_H264_ADAPTIVE_RC_SMOOTH (V4L2_CID_MPEG_MFC51_BASE+52)
#define V4L2_CID_MPEG_MFC51_VIDEO_H264_ADAPTIVE_RC_STATIC (V4L2_CID_MPEG_MFC51_BASE+53)
#define V4L2_CID_MPEG_MFC51_VIDEO_H264_NUM_REF_PIC_FOR_P (V4L2_CID_MPEG_MFC51_BASE+54)
/* Camera class control IDs */
#define V4L2_CID_CAMERA_CLASS_BASE (V4L2_CTRL_CLASS_CAMERA | 0x900)
#define V4L2_CID_CAMERA_CLASS (V4L2_CTRL_CLASS_CAMERA | 1)
#define V4L2_CID_EXPOSURE_AUTO (V4L2_CID_CAMERA_CLASS_BASE+1)
enum v4l2_exposure_auto_type {
V4L2_EXPOSURE_AUTO = 0,
V4L2_EXPOSURE_MANUAL = 1,
V4L2_EXPOSURE_SHUTTER_PRIORITY = 2,
V4L2_EXPOSURE_APERTURE_PRIORITY = 3
};
#define V4L2_CID_EXPOSURE_ABSOLUTE (V4L2_CID_CAMERA_CLASS_BASE+2)
#define V4L2_CID_EXPOSURE_AUTO_PRIORITY (V4L2_CID_CAMERA_CLASS_BASE+3)
#define V4L2_CID_PAN_RELATIVE (V4L2_CID_CAMERA_CLASS_BASE+4)
#define V4L2_CID_TILT_RELATIVE (V4L2_CID_CAMERA_CLASS_BASE+5)
#define V4L2_CID_PAN_RESET (V4L2_CID_CAMERA_CLASS_BASE+6)
#define V4L2_CID_TILT_RESET (V4L2_CID_CAMERA_CLASS_BASE+7)
#define V4L2_CID_PAN_ABSOLUTE (V4L2_CID_CAMERA_CLASS_BASE+8)
#define V4L2_CID_TILT_ABSOLUTE (V4L2_CID_CAMERA_CLASS_BASE+9)
#define V4L2_CID_FOCUS_ABSOLUTE (V4L2_CID_CAMERA_CLASS_BASE+10)
#define V4L2_CID_FOCUS_RELATIVE (V4L2_CID_CAMERA_CLASS_BASE+11)
#define V4L2_CID_FOCUS_AUTO (V4L2_CID_CAMERA_CLASS_BASE+12)
#define V4L2_CID_ZOOM_ABSOLUTE (V4L2_CID_CAMERA_CLASS_BASE+13)
#define V4L2_CID_ZOOM_RELATIVE (V4L2_CID_CAMERA_CLASS_BASE+14)
#define V4L2_CID_ZOOM_CONTINUOUS (V4L2_CID_CAMERA_CLASS_BASE+15)
#define V4L2_CID_PRIVACY (V4L2_CID_CAMERA_CLASS_BASE+16)
#define V4L2_CID_IRIS_ABSOLUTE (V4L2_CID_CAMERA_CLASS_BASE+17)
#define V4L2_CID_IRIS_RELATIVE (V4L2_CID_CAMERA_CLASS_BASE+18)
#define V4L2_CID_AUTO_EXPOSURE_BIAS (V4L2_CID_CAMERA_CLASS_BASE+19)
#define V4L2_CID_AUTO_N_PRESET_WHITE_BALANCE (V4L2_CID_CAMERA_CLASS_BASE+20)
enum v4l2_auto_n_preset_white_balance {
V4L2_WHITE_BALANCE_MANUAL = 0,
V4L2_WHITE_BALANCE_AUTO = 1,
V4L2_WHITE_BALANCE_INCANDESCENT = 2,
V4L2_WHITE_BALANCE_FLUORESCENT = 3,
V4L2_WHITE_BALANCE_FLUORESCENT_H = 4,
V4L2_WHITE_BALANCE_HORIZON = 5,
V4L2_WHITE_BALANCE_DAYLIGHT = 6,
V4L2_WHITE_BALANCE_FLASH = 7,
V4L2_WHITE_BALANCE_CLOUDY = 8,
V4L2_WHITE_BALANCE_SHADE = 9,
};
#define V4L2_CID_WIDE_DYNAMIC_RANGE (V4L2_CID_CAMERA_CLASS_BASE+21)
#define V4L2_CID_IMAGE_STABILIZATION (V4L2_CID_CAMERA_CLASS_BASE+22)
#define V4L2_CID_ISO_SENSITIVITY (V4L2_CID_CAMERA_CLASS_BASE+23)
#define V4L2_CID_ISO_SENSITIVITY_AUTO (V4L2_CID_CAMERA_CLASS_BASE+24)
enum v4l2_iso_sensitivity_auto_type {
V4L2_ISO_SENSITIVITY_MANUAL = 0,
V4L2_ISO_SENSITIVITY_AUTO = 1,
};
#define V4L2_CID_EXPOSURE_METERING (V4L2_CID_CAMERA_CLASS_BASE+25)
enum v4l2_exposure_metering {
V4L2_EXPOSURE_METERING_AVERAGE = 0,
V4L2_EXPOSURE_METERING_CENTER_WEIGHTED = 1,
V4L2_EXPOSURE_METERING_SPOT = 2,
V4L2_EXPOSURE_METERING_MATRIX = 3,
};
#define V4L2_CID_SCENE_MODE (V4L2_CID_CAMERA_CLASS_BASE+26)
enum v4l2_scene_mode {
V4L2_SCENE_MODE_NONE = 0,
V4L2_SCENE_MODE_BACKLIGHT = 1,
V4L2_SCENE_MODE_BEACH_SNOW = 2,
V4L2_SCENE_MODE_CANDLE_LIGHT = 3,
V4L2_SCENE_MODE_DAWN_DUSK = 4,
V4L2_SCENE_MODE_FALL_COLORS = 5,
V4L2_SCENE_MODE_FIREWORKS = 6,
V4L2_SCENE_MODE_LANDSCAPE = 7,
V4L2_SCENE_MODE_NIGHT = 8,
V4L2_SCENE_MODE_PARTY_INDOOR = 9,
V4L2_SCENE_MODE_PORTRAIT = 10,
V4L2_SCENE_MODE_SPORTS = 11,
V4L2_SCENE_MODE_SUNSET = 12,
V4L2_SCENE_MODE_TEXT = 13,
};
#define V4L2_CID_3A_LOCK (V4L2_CID_CAMERA_CLASS_BASE+27)
#define V4L2_LOCK_EXPOSURE (1 << 0)
#define V4L2_LOCK_WHITE_BALANCE (1 << 1)
#define V4L2_LOCK_FOCUS (1 << 2)
#define V4L2_CID_AUTO_FOCUS_START (V4L2_CID_CAMERA_CLASS_BASE+28)
#define V4L2_CID_AUTO_FOCUS_STOP (V4L2_CID_CAMERA_CLASS_BASE+29)
#define V4L2_CID_AUTO_FOCUS_STATUS (V4L2_CID_CAMERA_CLASS_BASE+30)
#define V4L2_AUTO_FOCUS_STATUS_IDLE (0 << 0)
#define V4L2_AUTO_FOCUS_STATUS_BUSY (1 << 0)
#define V4L2_AUTO_FOCUS_STATUS_REACHED (1 << 1)
#define V4L2_AUTO_FOCUS_STATUS_FAILED (1 << 2)
#define V4L2_CID_AUTO_FOCUS_RANGE (V4L2_CID_CAMERA_CLASS_BASE+31)
enum v4l2_auto_focus_range {
V4L2_AUTO_FOCUS_RANGE_AUTO = 0,
V4L2_AUTO_FOCUS_RANGE_NORMAL = 1,
V4L2_AUTO_FOCUS_RANGE_MACRO = 2,
V4L2_AUTO_FOCUS_RANGE_INFINITY = 3,
};
/* FM Modulator class control IDs */
#define V4L2_CID_FM_TX_CLASS_BASE (V4L2_CTRL_CLASS_FM_TX | 0x900)
#define V4L2_CID_FM_TX_CLASS (V4L2_CTRL_CLASS_FM_TX | 1)
#define V4L2_CID_RDS_TX_DEVIATION (V4L2_CID_FM_TX_CLASS_BASE + 1)
#define V4L2_CID_RDS_TX_PI (V4L2_CID_FM_TX_CLASS_BASE + 2)
#define V4L2_CID_RDS_TX_PTY (V4L2_CID_FM_TX_CLASS_BASE + 3)
#define V4L2_CID_RDS_TX_PS_NAME (V4L2_CID_FM_TX_CLASS_BASE + 5)
#define V4L2_CID_RDS_TX_RADIO_TEXT (V4L2_CID_FM_TX_CLASS_BASE + 6)
#define V4L2_CID_AUDIO_LIMITER_ENABLED (V4L2_CID_FM_TX_CLASS_BASE + 64)
#define V4L2_CID_AUDIO_LIMITER_RELEASE_TIME (V4L2_CID_FM_TX_CLASS_BASE + 65)
#define V4L2_CID_AUDIO_LIMITER_DEVIATION (V4L2_CID_FM_TX_CLASS_BASE + 66)
#define V4L2_CID_AUDIO_COMPRESSION_ENABLED (V4L2_CID_FM_TX_CLASS_BASE + 80)
#define V4L2_CID_AUDIO_COMPRESSION_GAIN (V4L2_CID_FM_TX_CLASS_BASE + 81)
#define V4L2_CID_AUDIO_COMPRESSION_THRESHOLD (V4L2_CID_FM_TX_CLASS_BASE + 82)
#define V4L2_CID_AUDIO_COMPRESSION_ATTACK_TIME (V4L2_CID_FM_TX_CLASS_BASE + 83)
#define V4L2_CID_AUDIO_COMPRESSION_RELEASE_TIME (V4L2_CID_FM_TX_CLASS_BASE + 84)
#define V4L2_CID_PILOT_TONE_ENABLED (V4L2_CID_FM_TX_CLASS_BASE + 96)
#define V4L2_CID_PILOT_TONE_DEVIATION (V4L2_CID_FM_TX_CLASS_BASE + 97)
#define V4L2_CID_PILOT_TONE_FREQUENCY (V4L2_CID_FM_TX_CLASS_BASE + 98)
#define V4L2_CID_TUNE_PREEMPHASIS (V4L2_CID_FM_TX_CLASS_BASE + 112)
enum v4l2_preemphasis {
V4L2_PREEMPHASIS_DISABLED = 0,
V4L2_PREEMPHASIS_50_uS = 1,
V4L2_PREEMPHASIS_75_uS = 2,
};
#define V4L2_CID_TUNE_POWER_LEVEL (V4L2_CID_FM_TX_CLASS_BASE + 113)
#define V4L2_CID_TUNE_ANTENNA_CAPACITOR (V4L2_CID_FM_TX_CLASS_BASE + 114)
/* Flash and privacy (indicator) light controls */
#define V4L2_CID_FLASH_CLASS_BASE (V4L2_CTRL_CLASS_FLASH | 0x900)
#define V4L2_CID_FLASH_CLASS (V4L2_CTRL_CLASS_FLASH | 1)
#define V4L2_CID_FLASH_LED_MODE (V4L2_CID_FLASH_CLASS_BASE + 1)
enum v4l2_flash_led_mode {
V4L2_FLASH_LED_MODE_NONE,
V4L2_FLASH_LED_MODE_FLASH,
V4L2_FLASH_LED_MODE_TORCH,
};
#define V4L2_CID_FLASH_STROBE_SOURCE (V4L2_CID_FLASH_CLASS_BASE + 2)
enum v4l2_flash_strobe_source {
V4L2_FLASH_STROBE_SOURCE_SOFTWARE,
V4L2_FLASH_STROBE_SOURCE_EXTERNAL,
};
#define V4L2_CID_FLASH_STROBE (V4L2_CID_FLASH_CLASS_BASE + 3)
#define V4L2_CID_FLASH_STROBE_STOP (V4L2_CID_FLASH_CLASS_BASE + 4)
#define V4L2_CID_FLASH_STROBE_STATUS (V4L2_CID_FLASH_CLASS_BASE + 5)
#define V4L2_CID_FLASH_TIMEOUT (V4L2_CID_FLASH_CLASS_BASE + 6)
#define V4L2_CID_FLASH_INTENSITY (V4L2_CID_FLASH_CLASS_BASE + 7)
#define V4L2_CID_FLASH_TORCH_INTENSITY (V4L2_CID_FLASH_CLASS_BASE + 8)
#define V4L2_CID_FLASH_INDICATOR_INTENSITY (V4L2_CID_FLASH_CLASS_BASE + 9)
#define V4L2_CID_FLASH_FAULT (V4L2_CID_FLASH_CLASS_BASE + 10)
#define V4L2_FLASH_FAULT_OVER_VOLTAGE (1 << 0)
#define V4L2_FLASH_FAULT_TIMEOUT (1 << 1)
#define V4L2_FLASH_FAULT_OVER_TEMPERATURE (1 << 2)
#define V4L2_FLASH_FAULT_SHORT_CIRCUIT (1 << 3)
#define V4L2_FLASH_FAULT_OVER_CURRENT (1 << 4)
#define V4L2_FLASH_FAULT_INDICATOR (1 << 5)
#define V4L2_CID_FLASH_CHARGE (V4L2_CID_FLASH_CLASS_BASE + 11)
#define V4L2_CID_FLASH_READY (V4L2_CID_FLASH_CLASS_BASE + 12)
/* JPEG-class control IDs */
#define V4L2_CID_JPEG_CLASS_BASE (V4L2_CTRL_CLASS_JPEG | 0x900)
#define V4L2_CID_JPEG_CLASS (V4L2_CTRL_CLASS_JPEG | 1)
#define V4L2_CID_JPEG_CHROMA_SUBSAMPLING (V4L2_CID_JPEG_CLASS_BASE + 1)
enum v4l2_jpeg_chroma_subsampling {
V4L2_JPEG_CHROMA_SUBSAMPLING_444 = 0,
V4L2_JPEG_CHROMA_SUBSAMPLING_422 = 1,
V4L2_JPEG_CHROMA_SUBSAMPLING_420 = 2,
V4L2_JPEG_CHROMA_SUBSAMPLING_411 = 3,
V4L2_JPEG_CHROMA_SUBSAMPLING_410 = 4,
V4L2_JPEG_CHROMA_SUBSAMPLING_GRAY = 5,
};
#define V4L2_CID_JPEG_RESTART_INTERVAL (V4L2_CID_JPEG_CLASS_BASE + 2)
#define V4L2_CID_JPEG_COMPRESSION_QUALITY (V4L2_CID_JPEG_CLASS_BASE + 3)
#define V4L2_CID_JPEG_ACTIVE_MARKER (V4L2_CID_JPEG_CLASS_BASE + 4)
#define V4L2_JPEG_ACTIVE_MARKER_APP0 (1 << 0)
#define V4L2_JPEG_ACTIVE_MARKER_APP1 (1 << 1)
#define V4L2_JPEG_ACTIVE_MARKER_COM (1 << 16)
#define V4L2_JPEG_ACTIVE_MARKER_DQT (1 << 17)
#define V4L2_JPEG_ACTIVE_MARKER_DHT (1 << 18)
/* Image source controls */
#define V4L2_CID_IMAGE_SOURCE_CLASS_BASE (V4L2_CTRL_CLASS_IMAGE_SOURCE | 0x900)
#define V4L2_CID_IMAGE_SOURCE_CLASS (V4L2_CTRL_CLASS_IMAGE_SOURCE | 1)
#define V4L2_CID_VBLANK (V4L2_CID_IMAGE_SOURCE_CLASS_BASE + 1)
#define V4L2_CID_HBLANK (V4L2_CID_IMAGE_SOURCE_CLASS_BASE + 2)
#define V4L2_CID_ANALOGUE_GAIN (V4L2_CID_IMAGE_SOURCE_CLASS_BASE + 3)
/* Image processing controls */
#define V4L2_CID_IMAGE_PROC_CLASS_BASE (V4L2_CTRL_CLASS_IMAGE_PROC | 0x900)
#define V4L2_CID_IMAGE_PROC_CLASS (V4L2_CTRL_CLASS_IMAGE_PROC | 1)
#define V4L2_CID_LINK_FREQ (V4L2_CID_IMAGE_PROC_CLASS_BASE + 1)
#define V4L2_CID_PIXEL_RATE (V4L2_CID_IMAGE_PROC_CLASS_BASE + 2)
#define V4L2_CID_TEST_PATTERN (V4L2_CID_IMAGE_PROC_CLASS_BASE + 3)
/* DV-class control IDs defined by V4L2 */
#define V4L2_CID_DV_CLASS_BASE (V4L2_CTRL_CLASS_DV | 0x900)
#define V4L2_CID_DV_CLASS (V4L2_CTRL_CLASS_DV | 1)
#define V4L2_CID_DV_TX_HOTPLUG (V4L2_CID_DV_CLASS_BASE + 1)
#define V4L2_CID_DV_TX_RXSENSE (V4L2_CID_DV_CLASS_BASE + 2)
#define V4L2_CID_DV_TX_EDID_PRESENT (V4L2_CID_DV_CLASS_BASE + 3)
#define V4L2_CID_DV_TX_MODE (V4L2_CID_DV_CLASS_BASE + 4)
enum v4l2_dv_tx_mode {
V4L2_DV_TX_MODE_DVI_D = 0,
V4L2_DV_TX_MODE_HDMI = 1,
};
#define V4L2_CID_DV_TX_RGB_RANGE (V4L2_CID_DV_CLASS_BASE + 5)
enum v4l2_dv_rgb_range {
V4L2_DV_RGB_RANGE_AUTO = 0,
V4L2_DV_RGB_RANGE_LIMITED = 1,
V4L2_DV_RGB_RANGE_FULL = 2,
};
#define V4L2_CID_DV_RX_POWER_PRESENT (V4L2_CID_DV_CLASS_BASE + 100)
#define V4L2_CID_DV_RX_RGB_RANGE (V4L2_CID_DV_CLASS_BASE + 101)
#define V4L2_CID_FM_RX_CLASS_BASE (V4L2_CTRL_CLASS_FM_RX | 0x900)
#define V4L2_CID_FM_RX_CLASS (V4L2_CTRL_CLASS_FM_RX | 1)
#define V4L2_CID_TUNE_DEEMPHASIS (V4L2_CID_FM_RX_CLASS_BASE + 1)
enum v4l2_deemphasis {
V4L2_DEEMPHASIS_DISABLED = V4L2_PREEMPHASIS_DISABLED,
V4L2_DEEMPHASIS_50_uS = V4L2_PREEMPHASIS_50_uS,
V4L2_DEEMPHASIS_75_uS = V4L2_PREEMPHASIS_75_uS,
};
#define V4L2_CID_RDS_RECEPTION (V4L2_CID_FM_RX_CLASS_BASE + 2)
#endif

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/*
V4L2 controls support header.
Copyright (C) 2010 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_CTRLS_H
#define _V4L2_CTRLS_H
#if 0
#include <linux/list.h>
#include <linux/mutex.h>
#endif
#include "v4l2-osdep.h"
#include "videodev2.h"
/* forward references */
//struct file;
struct v4l2_ctrl_handler;
struct v4l2_ctrl_helper;
struct v4l2_ctrl;
struct video_device;
struct v4l2_subdev;
struct v4l2_subscribed_event;
struct v4l2_fh;
//struct poll_table_struct;
/** struct v4l2_ctrl_ops - The control operations that the driver has to provide.
* @g_volatile_ctrl: Get a new value for this control. Generally only relevant
* for volatile (and usually read-only) controls such as a control
* that returns the current signal strength which changes
* continuously.
* If not set, then the currently cached value will be returned.
* @try_ctrl: Test whether the control's value is valid. Only relevant when
* the usual min/max/step checks are not sufficient.
* @s_ctrl: Actually set the new control value. s_ctrl is compulsory. The
* ctrl->handler->lock is held when these ops are called, so no
* one else can access controls owned by that handler.
*/
struct v4l2_ctrl_ops {
int (*g_volatile_ctrl)(struct v4l2_ctrl *ctrl);
int (*try_ctrl)(struct v4l2_ctrl *ctrl);
int (*s_ctrl)(struct v4l2_ctrl *ctrl);
};
typedef void (*v4l2_ctrl_notify_fnc)(struct v4l2_ctrl *ctrl, void *priv);
/** struct v4l2_ctrl - The control structure.
* @node: The list node.
* @ev_subs: The list of control event subscriptions.
* @handler: The handler that owns the control.
* @cluster: Point to start of cluster array.
* @ncontrols: Number of controls in cluster array.
* @done: Internal flag: set for each processed control.
* @is_new: Set when the user specified a new value for this control. It
* is also set when called from v4l2_ctrl_handler_setup. Drivers
* should never set this flag.
* @is_private: If set, then this control is private to its handler and it
* will not be added to any other handlers. Drivers can set
* this flag.
* @is_auto: If set, then this control selects whether the other cluster
* members are in 'automatic' mode or 'manual' mode. This is
* used for autogain/gain type clusters. Drivers should never
* set this flag directly.
* @has_volatiles: If set, then one or more members of the cluster are volatile.
* Drivers should never touch this flag.
* @call_notify: If set, then call the handler's notify function whenever the
* control's value changes.
* @manual_mode_value: If the is_auto flag is set, then this is the value
* of the auto control that determines if that control is in
* manual mode. So if the value of the auto control equals this
* value, then the whole cluster is in manual mode. Drivers should
* never set this flag directly.
* @ops: The control ops.
* @id: The control ID.
* @name: The control name.
* @type: The control type.
* @minimum: The control's minimum value.
* @maximum: The control's maximum value.
* @default_value: The control's default value.
* @step: The control's step value for non-menu controls.
* @menu_skip_mask: The control's skip mask for menu controls. This makes it
* easy to skip menu items that are not valid. If bit X is set,
* then menu item X is skipped. Of course, this only works for
* menus with <= 32 menu items. There are no menus that come
* close to that number, so this is OK. Should we ever need more,
* then this will have to be extended to a u64 or a bit array.
* @qmenu: A const char * array for all menu items. Array entries that are
* empty strings ("") correspond to non-existing menu items (this
* is in addition to the menu_skip_mask above). The last entry
* must be NULL.
* @flags: The control's flags.
* @cur: The control's current value.
* @val: The control's new s32 value.
* @val64: The control's new s64 value.
* @string: The control's new string value.
* @priv: The control's private pointer. For use by the driver. It is
* untouched by the control framework. Note that this pointer is
* not freed when the control is deleted. Should this be needed
* then a new internal bitfield can be added to tell the framework
* to free this pointer.
*/
struct v4l2_ctrl {
/* Administrative fields */
struct list_head node;
struct list_head ev_subs;
struct v4l2_ctrl_handler *handler;
struct v4l2_ctrl **cluster;
unsigned ncontrols;
unsigned int done:1;
unsigned int is_new:1;
unsigned int is_private:1;
unsigned int is_auto:1;
unsigned int has_volatiles:1;
unsigned int call_notify:1;
unsigned int manual_mode_value:8;
const struct v4l2_ctrl_ops *ops;
u32 id;
const char *name;
enum v4l2_ctrl_type type;
s32 minimum, maximum, default_value;
union {
u32 step;
u32 menu_skip_mask;
};
union {
const char * const *qmenu;
const s64 *qmenu_int;
};
unsigned long flags;
union {
s32 val;
s64 val64;
char *string;
} cur;
union {
s32 val;
s64 val64;
char *string;
};
void *priv;
};
/** struct v4l2_ctrl_ref - The control reference.
* @node: List node for the sorted list.
* @next: Single-link list node for the hash.
* @ctrl: The actual control information.
* @helper: Pointer to helper struct. Used internally in prepare_ext_ctrls().
*
* Each control handler has a list of these refs. The list_head is used to
* keep a sorted-by-control-ID list of all controls, while the next pointer
* is used to link the control in the hash's bucket.
*/
struct v4l2_ctrl_ref {
struct list_head node;
struct v4l2_ctrl_ref *next;
struct v4l2_ctrl *ctrl;
struct v4l2_ctrl_helper *helper;
};
/** struct v4l2_ctrl_handler - The control handler keeps track of all the
* controls: both the controls owned by the handler and those inherited
* from other handlers.
* @_lock: Default for "lock".
* @lock: Lock to control access to this handler and its controls.
* May be replaced by the user right after init.
* @ctrls: The list of controls owned by this handler.
* @ctrl_refs: The list of control references.
* @cached: The last found control reference. It is common that the same
* control is needed multiple times, so this is a simple
* optimization.
* @buckets: Buckets for the hashing. Allows for quick control lookup.
* @notify: A notify callback that is called whenever the control changes value.
* Note that the handler's lock is held when the notify function
* is called!
* @notify_priv: Passed as argument to the v4l2_ctrl notify callback.
* @nr_of_buckets: Total number of buckets in the array.
* @error: The error code of the first failed control addition.
*/
struct v4l2_ctrl_handler {
//struct mutex _lock;
//struct mutex *lock;
_Mutex _lock;
_Mutex *lock;
struct list_head ctrls;
struct list_head ctrl_refs;
struct v4l2_ctrl_ref *cached;
struct v4l2_ctrl_ref **buckets;
v4l2_ctrl_notify_fnc notify;
void *notify_priv;
u16 nr_of_buckets;
int error;
};
/** struct v4l2_ctrl_config - Control configuration structure.
* @ops: The control ops.
* @id: The control ID.
* @name: The control name.
* @type: The control type.
* @min: The control's minimum value.
* @max: The control's maximum value.
* @step: The control's step value for non-menu controls.
* @def: The control's default value.
* @flags: The control's flags.
* @menu_skip_mask: The control's skip mask for menu controls. This makes it
* easy to skip menu items that are not valid. If bit X is set,
* then menu item X is skipped. Of course, this only works for
* menus with <= 32 menu items. There are no menus that come
* close to that number, so this is OK. Should we ever need more,
* then this will have to be extended to a u64 or a bit array.
* @qmenu: A const char * array for all menu items. Array entries that are
* empty strings ("") correspond to non-existing menu items (this
* is in addition to the menu_skip_mask above). The last entry
* must be NULL.
* @is_private: If set, then this control is private to its handler and it
* will not be added to any other handlers.
*/
struct v4l2_ctrl_config {
const struct v4l2_ctrl_ops *ops;
u32 id;
const char *name;
enum v4l2_ctrl_type type;
s32 min;
s32 max;
u32 step;
s32 def;
u32 flags;
u32 menu_skip_mask;
const char * const *qmenu;
const s64 *qmenu_int;
unsigned int is_private:1;
};
/** v4l2_ctrl_fill() - Fill in the control fields based on the control ID.
*
* This works for all standard V4L2 controls.
* For non-standard controls it will only fill in the given arguments
* and @name will be NULL.
*
* This function will overwrite the contents of @name, @type and @flags.
* The contents of @min, @max, @step and @def may be modified depending on
* the type.
*
* Do not use in drivers! It is used internally for backwards compatibility
* control handling only. Once all drivers are converted to use the new
* control framework this function will no longer be exported.
*/
void v4l2_ctrl_fill(u32 id, const char **name, enum v4l2_ctrl_type *type,
s32 *min, s32 *max, s32 *step, s32 *def, u32 *flags);
/** v4l2_ctrl_handler_init_class() - Initialize the control handler.
* @hdl: The control handler.
* @nr_of_controls_hint: A hint of how many controls this handler is
* expected to refer to. This is the total number, so including
* any inherited controls. It doesn't have to be precise, but if
* it is way off, then you either waste memory (too many buckets
* are allocated) or the control lookup becomes slower (not enough
* buckets are allocated, so there are more slow list lookups).
* It will always work, though.
* @key: Used by the lock validator if CONFIG_LOCKDEP is set.
* @name: Used by the lock validator if CONFIG_LOCKDEP is set.
*
* Returns an error if the buckets could not be allocated. This error will
* also be stored in @hdl->error.
*
* Never use this call directly, always use the v4l2_ctrl_handler_init
* macro that hides the @key and @name arguments.
*/
#if 0
int v4l2_ctrl_handler_init_class(struct v4l2_ctrl_handler *hdl,
unsigned nr_of_controls_hint,
struct lock_class_key *key, const char *name);
#ifdef CONFIG_LOCKDEP
#define v4l2_ctrl_handler_init(hdl, nr_of_controls_hint) \
( \
({ \
static struct lock_class_key _key; \
v4l2_ctrl_handler_init_class(hdl, nr_of_controls_hint, \
&_key, \
KBUILD_BASENAME ":" \
__stringify(__LINE__) ":" \
"(" #hdl ")->_lock"); \
}) \
)
#else
#define v4l2_ctrl_handler_init(hdl, nr_of_controls_hint) \
v4l2_ctrl_handler_init_class(hdl, nr_of_controls_hint, NULL, NULL)
#endif
#endif
/** v4l2_ctrl_handler_free() - Free all controls owned by the handler and free
* the control list.
* @hdl: The control handler.
*
* Does nothing if @hdl == NULL.
*/
void v4l2_ctrl_handler_free(struct v4l2_ctrl_handler *hdl);
/** v4l2_ctrl_handler_setup() - Call the s_ctrl op for all controls belonging
* to the handler to initialize the hardware to the current control values.
* @hdl: The control handler.
*
* Button controls will be skipped, as are read-only controls.
*
* If @hdl == NULL, then this just returns 0.
*/
int v4l2_ctrl_handler_setup(struct v4l2_ctrl_handler *hdl);
/** v4l2_ctrl_handler_log_status() - Log all controls owned by the handler.
* @hdl: The control handler.
* @prefix: The prefix to use when logging the control values. If the
* prefix does not end with a space, then ": " will be added
* after the prefix. If @prefix == NULL, then no prefix will be
* used.
*
* For use with VIDIOC_LOG_STATUS.
*
* Does nothing if @hdl == NULL.
*/
void v4l2_ctrl_handler_log_status(struct v4l2_ctrl_handler *hdl,
const char *prefix);
/** v4l2_ctrl_new_custom() - Allocate and initialize a new custom V4L2
* control.
* @hdl: The control handler.
* @cfg: The control's configuration data.
* @priv: The control's driver-specific private data.
*
* If the &v4l2_ctrl struct could not be allocated then NULL is returned
* and @hdl->error is set to the error code (if it wasn't set already).
*/
struct v4l2_ctrl *v4l2_ctrl_new_custom(struct v4l2_ctrl_handler *hdl,
const struct v4l2_ctrl_config *cfg, void *priv);
/** v4l2_ctrl_new_std() - Allocate and initialize a new standard V4L2 non-menu control.
* @hdl: The control handler.
* @ops: The control ops.
* @id: The control ID.
* @min: The control's minimum value.
* @max: The control's maximum value.
* @step: The control's step value
* @def: The control's default value.
*
* If the &v4l2_ctrl struct could not be allocated, or the control
* ID is not known, then NULL is returned and @hdl->error is set to the
* appropriate error code (if it wasn't set already).
*
* If @id refers to a menu control, then this function will return NULL.
*
* Use v4l2_ctrl_new_std_menu() when adding menu controls.
*/
struct v4l2_ctrl *v4l2_ctrl_new_std(struct v4l2_ctrl_handler *hdl,
const struct v4l2_ctrl_ops *ops,
u32 id, s32 min, s32 max, u32 step, s32 def);
/** v4l2_ctrl_new_std_menu() - Allocate and initialize a new standard V4L2 menu control.
* @hdl: The control handler.
* @ops: The control ops.
* @id: The control ID.
* @max: The control's maximum value.
* @mask: The control's skip mask for menu controls. This makes it
* easy to skip menu items that are not valid. If bit X is set,
* then menu item X is skipped. Of course, this only works for
* menus with <= 32 menu items. There are no menus that come
* close to that number, so this is OK. Should we ever need more,
* then this will have to be extended to a u64 or a bit array.
* @def: The control's default value.
*
* Same as v4l2_ctrl_new_std(), but @min is set to 0 and the @mask value
* determines which menu items are to be skipped.
*
* If @id refers to a non-menu control, then this function will return NULL.
*/
struct v4l2_ctrl *v4l2_ctrl_new_std_menu(struct v4l2_ctrl_handler *hdl,
const struct v4l2_ctrl_ops *ops,
u32 id, s32 max, s32 mask, s32 def);
/** v4l2_ctrl_new_std_menu_items() - Create a new standard V4L2 menu control
* with driver specific menu.
* @hdl: The control handler.
* @ops: The control ops.
* @id: The control ID.
* @max: The control's maximum value.
* @mask: The control's skip mask for menu controls. This makes it
* easy to skip menu items that are not valid. If bit X is set,
* then menu item X is skipped. Of course, this only works for
* menus with <= 32 menu items. There are no menus that come
* close to that number, so this is OK. Should we ever need more,
* then this will have to be extended to a u64 or a bit array.
* @def: The control's default value.
* @qmenu: The new menu.
*
* Same as v4l2_ctrl_new_std_menu(), but @qmenu will be the driver specific
* menu of this control.
*
*/
struct v4l2_ctrl *v4l2_ctrl_new_std_menu_items(struct v4l2_ctrl_handler *hdl,
const struct v4l2_ctrl_ops *ops, u32 id, s32 max,
s32 mask, s32 def, const char * const *qmenu);
/** v4l2_ctrl_new_int_menu() - Create a new standard V4L2 integer menu control.
* @hdl: The control handler.
* @ops: The control ops.
* @id: The control ID.
* @max: The control's maximum value.
* @def: The control's default value.
* @qmenu_int: The control's menu entries.
*
* Same as v4l2_ctrl_new_std_menu(), but @mask is set to 0 and it additionaly
* takes as an argument an array of integers determining the menu items.
*
* If @id refers to a non-integer-menu control, then this function will return NULL.
*/
struct v4l2_ctrl *v4l2_ctrl_new_int_menu(struct v4l2_ctrl_handler *hdl,
const struct v4l2_ctrl_ops *ops,
u32 id, s32 max, s32 def, const s64 *qmenu_int);
/** v4l2_ctrl_add_ctrl() - Add a control from another handler to this handler.
* @hdl: The control handler.
* @ctrl: The control to add.
*
* It will return NULL if it was unable to add the control reference.
* If the control already belonged to the handler, then it will do
* nothing and just return @ctrl.
*/
struct v4l2_ctrl *v4l2_ctrl_add_ctrl(struct v4l2_ctrl_handler *hdl,
struct v4l2_ctrl *ctrl);
/** v4l2_ctrl_add_handler() - Add all controls from handler @add to
* handler @hdl.
* @hdl: The control handler.
* @add: The control handler whose controls you want to add to
* the @hdl control handler.
* @filter: This function will filter which controls should be added.
*
* Does nothing if either of the two handlers is a NULL pointer.
* If @filter is NULL, then all controls are added. Otherwise only those
* controls for which @filter returns true will be added.
* In case of an error @hdl->error will be set to the error code (if it
* wasn't set already).
*/
int v4l2_ctrl_add_handler(struct v4l2_ctrl_handler *hdl,
struct v4l2_ctrl_handler *add,
bool (*filter)(const struct v4l2_ctrl *ctrl));
/** v4l2_ctrl_radio_filter() - Standard filter for radio controls.
* @ctrl: The control that is filtered.
*
* This will return true for any controls that are valid for radio device
* nodes. Those are all of the V4L2_CID_AUDIO_* user controls and all FM
* transmitter class controls.
*
* This function is to be used with v4l2_ctrl_add_handler().
*/
bool v4l2_ctrl_radio_filter(const struct v4l2_ctrl *ctrl);
/** v4l2_ctrl_cluster() - Mark all controls in the cluster as belonging to that cluster.
* @ncontrols: The number of controls in this cluster.
* @controls: The cluster control array of size @ncontrols.
*/
void v4l2_ctrl_cluster(unsigned ncontrols, struct v4l2_ctrl **controls);
/** v4l2_ctrl_auto_cluster() - Mark all controls in the cluster as belonging to
* that cluster and set it up for autofoo/foo-type handling.
* @ncontrols: The number of controls in this cluster.
* @controls: The cluster control array of size @ncontrols. The first control
* must be the 'auto' control (e.g. autogain, autoexposure, etc.)
* @manual_val: The value for the first control in the cluster that equals the
* manual setting.
* @set_volatile: If true, then all controls except the first auto control will
* be volatile.
*
* Use for control groups where one control selects some automatic feature and
* the other controls are only active whenever the automatic feature is turned
* off (manual mode). Typical examples: autogain vs gain, auto-whitebalance vs
* red and blue balance, etc.
*
* The behavior of such controls is as follows:
*
* When the autofoo control is set to automatic, then any manual controls
* are set to inactive and any reads will call g_volatile_ctrl (if the control
* was marked volatile).
*
* When the autofoo control is set to manual, then any manual controls will
* be marked active, and any reads will just return the current value without
* going through g_volatile_ctrl.
*
* In addition, this function will set the V4L2_CTRL_FLAG_UPDATE flag
* on the autofoo control and V4L2_CTRL_FLAG_INACTIVE on the foo control(s)
* if autofoo is in auto mode.
*/
void v4l2_ctrl_auto_cluster(unsigned ncontrols, struct v4l2_ctrl **controls,
u8 manual_val, bool set_volatile);
/** v4l2_ctrl_find() - Find a control with the given ID.
* @hdl: The control handler.
* @id: The control ID to find.
*
* If @hdl == NULL this will return NULL as well. Will lock the handler so
* do not use from inside &v4l2_ctrl_ops.
*/
struct v4l2_ctrl *v4l2_ctrl_find(struct v4l2_ctrl_handler *hdl, u32 id);
/** v4l2_ctrl_activate() - Make the control active or inactive.
* @ctrl: The control to (de)activate.
* @active: True if the control should become active.
*
* This sets or clears the V4L2_CTRL_FLAG_INACTIVE flag atomically.
* Does nothing if @ctrl == NULL.
* This will usually be called from within the s_ctrl op.
* The V4L2_EVENT_CTRL event will be generated afterwards.
*
* This function assumes that the control handler is locked.
*/
void v4l2_ctrl_activate(struct v4l2_ctrl *ctrl, bool active);
/** v4l2_ctrl_grab() - Mark the control as grabbed or not grabbed.
* @ctrl: The control to (de)activate.
* @grabbed: True if the control should become grabbed.
*
* This sets or clears the V4L2_CTRL_FLAG_GRABBED flag atomically.
* Does nothing if @ctrl == NULL.
* The V4L2_EVENT_CTRL event will be generated afterwards.
* This will usually be called when starting or stopping streaming in the
* driver.
*
* This function assumes that the control handler is not locked and will
* take the lock itself.
*/
void v4l2_ctrl_grab(struct v4l2_ctrl *ctrl, bool grabbed);
/** v4l2_ctrl_modify_range() - Update the range of a control.
* @ctrl: The control to update.
* @min: The control's minimum value.
* @max: The control's maximum value.
* @step: The control's step value
* @def: The control's default value.
*
* Update the range of a control on the fly. This works for control types
* INTEGER, BOOLEAN, MENU, INTEGER MENU and BITMASK. For menu controls the
* @step value is interpreted as a menu_skip_mask.
*
* An error is returned if one of the range arguments is invalid for this
* control type.
*
* This function assumes that the control handler is not locked and will
* take the lock itself.
*/
int v4l2_ctrl_modify_range(struct v4l2_ctrl *ctrl,
s32 min, s32 max, u32 step, s32 def);
/** v4l2_ctrl_lock() - Helper function to lock the handler
* associated with the control.
* @ctrl: The control to lock.
*/
static inline void v4l2_ctrl_lock(struct v4l2_ctrl *ctrl)
{
mutex_lock(ctrl->handler->lock);
}
/** v4l2_ctrl_lock() - Helper function to unlock the handler
* associated with the control.
* @ctrl: The control to unlock.
*/
static inline void v4l2_ctrl_unlock(struct v4l2_ctrl *ctrl)
{
mutex_unlock(ctrl->handler->lock);
}
/** v4l2_ctrl_notify() - Function to set a notify callback for a control.
* @ctrl: The control.
* @notify: The callback function.
* @priv: The callback private handle, passed as argument to the callback.
*
* This function sets a callback function for the control. If @ctrl is NULL,
* then it will do nothing. If @notify is NULL, then the notify callback will
* be removed.
*
* There can be only one notify. If another already exists, then a WARN_ON
* will be issued and the function will do nothing.
*/
void v4l2_ctrl_notify(struct v4l2_ctrl *ctrl, v4l2_ctrl_notify_fnc notify, void *priv);
/** v4l2_ctrl_g_ctrl() - Helper function to get the control's value from within a driver.
* @ctrl: The control.
*
* This returns the control's value safely by going through the control
* framework. This function will lock the control's handler, so it cannot be
* used from within the &v4l2_ctrl_ops functions.
*
* This function is for integer type controls only.
*/
s32 v4l2_ctrl_g_ctrl(struct v4l2_ctrl *ctrl);
/** v4l2_ctrl_s_ctrl() - Helper function to set the control's value from within a driver.
* @ctrl: The control.
* @val: The new value.
*
* This set the control's new value safely by going through the control
* framework. This function will lock the control's handler, so it cannot be
* used from within the &v4l2_ctrl_ops functions.
*
* This function is for integer type controls only.
*/
int v4l2_ctrl_s_ctrl(struct v4l2_ctrl *ctrl, s32 val);
/** v4l2_ctrl_g_ctrl_int64() - Helper function to get a 64-bit control's value from within a driver.
* @ctrl: The control.
*
* This returns the control's value safely by going through the control
* framework. This function will lock the control's handler, so it cannot be
* used from within the &v4l2_ctrl_ops functions.
*
* This function is for 64-bit integer type controls only.
*/
s64 v4l2_ctrl_g_ctrl_int64(struct v4l2_ctrl *ctrl);
/** v4l2_ctrl_s_ctrl_int64() - Helper function to set a 64-bit control's value from within a driver.
* @ctrl: The control.
* @val: The new value.
*
* This set the control's new value safely by going through the control
* framework. This function will lock the control's handler, so it cannot be
* used from within the &v4l2_ctrl_ops functions.
*
* This function is for 64-bit integer type controls only.
*/
int v4l2_ctrl_s_ctrl_int64(struct v4l2_ctrl *ctrl, s64 val);
/* Internal helper functions that deal with control events. */
extern const struct v4l2_subscribed_event_ops v4l2_ctrl_sub_ev_ops;
void v4l2_ctrl_replace(struct v4l2_event *old, const struct v4l2_event *new);
void v4l2_ctrl_merge(const struct v4l2_event *old, struct v4l2_event *new);
/* Can be used as a vidioc_log_status function that just dumps all controls
associated with the filehandle. */
int v4l2_ctrl_log_status(void *fh);
/* Can be used as a vidioc_subscribe_event function that just subscribes
control events. */
int v4l2_ctrl_subscribe_event(struct v4l2_fh *fh,
const struct v4l2_event_subscription *sub);
/* Can be used as a poll function that just polls for control events. */
//unsigned int v4l2_ctrl_poll(struct file *file, struct poll_table_struct *wait);
/* Helpers for ioctl_ops. If hdl == NULL then they will all return -EINVAL. */
int v4l2_queryctrl(struct v4l2_ctrl_handler *hdl, struct v4l2_queryctrl *qc);
int v4l2_querymenu(struct v4l2_ctrl_handler *hdl, struct v4l2_querymenu *qm);
int v4l2_g_ctrl(struct v4l2_ctrl_handler *hdl, struct v4l2_control *ctrl);
int v4l2_s_ctrl(struct v4l2_fh *fh, struct v4l2_ctrl_handler *hdl,
struct v4l2_control *ctrl);
int v4l2_g_ext_ctrls(struct v4l2_ctrl_handler *hdl, struct v4l2_ext_controls *c);
int v4l2_try_ext_ctrls(struct v4l2_ctrl_handler *hdl, struct v4l2_ext_controls *c);
int v4l2_s_ext_ctrls(struct v4l2_fh *fh, struct v4l2_ctrl_handler *hdl,
struct v4l2_ext_controls *c);
/* Helpers for subdevices. If the associated ctrl_handler == NULL then they
will all return -EINVAL. */
int v4l2_subdev_queryctrl(struct v4l2_subdev *sd, struct v4l2_queryctrl *qc);
int v4l2_subdev_querymenu(struct v4l2_subdev *sd, struct v4l2_querymenu *qm);
int v4l2_subdev_g_ext_ctrls(struct v4l2_subdev *sd, struct v4l2_ext_controls *cs);
int v4l2_subdev_try_ext_ctrls(struct v4l2_subdev *sd, struct v4l2_ext_controls *cs);
int v4l2_subdev_s_ext_ctrls(struct v4l2_subdev *sd, struct v4l2_ext_controls *cs);
int v4l2_subdev_g_ctrl(struct v4l2_subdev *sd, struct v4l2_control *ctrl);
int v4l2_subdev_s_ctrl(struct v4l2_subdev *sd, struct v4l2_control *ctrl);
/* Can be used as a subscribe_event function that just subscribes control
events. */
int v4l2_ctrl_subdev_subscribe_event(struct v4l2_subdev *sd, struct v4l2_fh *fh,
struct v4l2_event_subscription *sub);
/* Log all controls owned by subdev's control handler. */
int v4l2_ctrl_subdev_log_status(struct v4l2_subdev *sd);
#endif

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@ -0,0 +1,273 @@
/*
*
* V 4 L 2 D R I V E R H E L P E R A P I
*
* Moved from videodev2.h
*
* Some commonly needed functions for drivers (v4l2-common.o module)
*/
#ifndef _V4L2_DEV_H
#define _V4L2_DEV_H
#if 0
#include <linux/poll.h>
#include <linux/fs.h>
#include <linux/device.h>
#include <linux/cdev.h>
#include <linux/mutex.h>
#endif
#include "v4l2-osdep.h"
#include "uapi_videodev2.h"
#include "media-entity.h"
#define VIDEO_MAJOR 81
#define VFL_TYPE_GRABBER 0
#define VFL_TYPE_VBI 1
#define VFL_TYPE_RADIO 2
#define VFL_TYPE_SUBDEV 3
#define VFL_TYPE_MAX 4
/* Is this a receiver, transmitter or mem-to-mem? */
/* Ignored for VFL_TYPE_SUBDEV. */
#define VFL_DIR_RX 0
#define VFL_DIR_TX 1
#define VFL_DIR_M2M 2
//struct v4l2_ioctl_callbacks; // can't find out from the kernel source code
struct video_device;
struct v4l2_device;
struct v4l2_ctrl_handler;
enum v4l2_priority;
/* Flag to mark the video_device struct as registered.
Drivers can clear this flag if they want to block all future
device access. It is cleared by video_unregister_device. */
#define V4L2_FL_REGISTERED (0)
/* file->private_data points to struct v4l2_fh */
#define V4L2_FL_USES_V4L2_FH (1)
/* Use the prio field of v4l2_fh for core priority checking */
#define V4L2_FL_USE_FH_PRIO (2)
/* Priority helper functions */
struct v4l2_prio_state {
atomic_t prios[4];
};
/*
enum v4l2_priority {
V4L2_PRIORITY_UNSET = 0, // 不初始化
V4L2_PRIORITY_BACKGROUND = 1, // 背景
V4L2_PRIORITY_INTERACTIVE = 2, // 互動
V4L2_PRIORITY_RECORD = 3, // 紀錄
V4L2_PRIORITY_DEFAULT = V4L2_PRIORITY_INTERACTIVE,
};
优先權是為了Multiple Opens操作，當可以支持device同時被多個thread 打開(i.e open())
需要用這優先權去區分哪個操作更重要，使用的那個優先級別，的prios[4]就加一。
*/
void v4l2_prio_init(struct v4l2_prio_state *global);
int v4l2_prio_change(struct v4l2_prio_state *global, enum v4l2_priority *local,
enum v4l2_priority new);
void v4l2_prio_open(struct v4l2_prio_state *global, enum v4l2_priority *local);
void v4l2_prio_close(struct v4l2_prio_state *global, enum v4l2_priority local);
enum v4l2_priority v4l2_prio_max(struct v4l2_prio_state *global);
int v4l2_prio_check(struct v4l2_prio_state *global, enum v4l2_priority local);
struct v4l2_file_operations {
//struct module *owner;
//ssize_t (*read) (struct file *, char __user *, size_t, loff_t *);
//ssize_t (*write) (struct file *, const char __user *, size_t, loff_t *);
//unsigned int (*poll) (struct file *, struct poll_table_struct *);
long (*ioctl) (unsigned int, unsigned long);
long (*unlocked_ioctl) (unsigned int, unsigned long);
#ifdef CONFIG_COMPAT
long (*compat_ioctl32) (unsigned int, unsigned long);
#endif
//unsigned long (*get_unmapped_area) (struct file *, unsigned long,
// unsigned long, unsigned long, unsigned long);
int (*mmap) ();
int (*open) ();
int (*release) ();
};
/*
* Newer version of video_device, handled by videodev2.c
* This version moves redundant code from video device code to
* the common handler
*/
struct video_device
{
#if defined(CONFIG_MEDIA_CONTROLLER)
struct media_entity entity;
#endif
/* device ops */
const struct v4l2_file_operations *fops;
/* sysfs */
//struct device dev; /* v4l device,this is mainlt for sysfs */
unsigned long dev; /* replace to the reference count */
void *dev_driver_data;
const char *init_name; /* initial name of the device */
void (*dev_release)(); /* release call back in origonal dev */
//struct cdev *cdev; /* character device, which video device register */
//struct file_operations *cdev_ops;/* file_operations in origonal cdev */
struct v4l2_device *v4l2_dev; /* v4l2_device parent */
/* Only set parent if that can't be deduced from v4l2_dev */
//struct device *dev_parent; /* device parent */
/* Control handler associated with this device node. May be NULL.
* look up v4l2_ctrls.h for more detail */
struct v4l2_ctrl_handler *ctrl_handler;
/* vb2_queue associated with this device node. May be NULL. */
struct vb2_queue *queue;
/* Priority state. If NULL, then v4l2_dev->prio will be used. */
struct v4l2_prio_state *prio;
/* device info */
char name[32];
int vfl_type; /* device type,usally assign the define VFL_TYPE_XXX value */
int vfl_dir; /* receiver, transmitter or m2m,usally assign the define VFL_DIR_XXX value */
/* 'minor' is set to -1 if the registration failed */
int minor;
u16 num; /* record the registered video device node number */
/* use bitops to set/clear/test flags,usally assign the define VFL_FL_XXX value */
unsigned long flags;
/* attribute to differentiate multiple indices on one physical device */
int index;
/* V4L2 file handles */
//spinlock_t fh_lock; /* Lock for all v4l2_fhs */
_Lock fh_lock;
struct list_head fh_list; /* List of struct v4l2_fh */
int debug; /* Activates debug level*/
/* Video standard vars (v4l2_std_id = u64)*/
//v4l2_std_id tvnorms; /* Supported tv norms,usally assign the define VFL_STD_XXX value */
u64 tvnorms;
/* callbacks,this must non-NULL,in usually use the video_device_release()to replace of */
void (*release)(struct video_device *vdev);
/* ioctl callbacks,look up v4l2-ioctl.h for more detail */
const struct v4l2_ioctl_ops *ioctl_ops;
//DECLARE_BITMAP(valid_ioctls, BASE_VIDIOC_PRIVATE); /* unsigned long valid_ioctls[6] */
unsigned long valid_ioctls[6];
/* serialization lock */
//DECLARE_BITMAP(disable_locking, BASE_VIDIOC_PRIVATE); /* unsigned long disable_locking[6] */
unsigned long disable_locking[6];
//struct mutex *lock; /* make serilized ioctl lock possible */
_Mutex *lock;
};
/* todo need to modify */
#if 0
#define media_entity_to_video_device(__e) \
container_of(__e, struct video_device, entity)
/* dev to video-device */
#define to_video_device(cd) container_of(cd, struct video_device, dev)
#endif
int __video_register_device(struct video_device *vdev, int type,
int nr, int warn_if_nr_in_use/*, struct module *owner*/);
/* Register video devices. Note that if video_register_device fails,
the release() callback of the video_device structure is *not* called, so
the caller is responsible for freeing any data. Usually that means that
you call video_device_release() on failure. */
static inline int video_register_device(struct video_device *vdev,
int type, int nr)
{
// type = VFL_TYPE_GRABBER, nr = -1, 1, "THIS_MODULE"
return __video_register_device(vdev, type, nr, 1/*, vdev->fops->owner*/);
}
/* Same as video_register_device, but no warning is issued if the desired
device node number was already in use. */
static inline int video_register_device_no_warn(
struct video_device *vdev, int type, int nr)
{
return __video_register_device(vdev, type, nr, 0/*, vdev->fops->owner*/);
}
/* Unregister video devices. Will do nothing if vdev == NULL or
video_is_registered() returns false. */
void video_unregister_device(struct video_device *vdev);
/* helper functions to alloc/release struct video_device, the
latter can also be used for video_device->release(). */
struct video_device *video_device_alloc(void);
/* this release function frees the vdev pointer */
void video_device_release(struct video_device *vdev);
/* this release function does nothing, use when the video_device is a
static global struct. Note that having a static video_device is
a dubious construction at best. */
void video_device_release_empty(struct video_device *vdev);
/* returns true if cmd is a known V4L2 ioctl */
bool v4l2_is_known_ioctl(unsigned int cmd);
/* mark that this command shouldn't use core locking */
static inline void v4l2_disable_ioctl_locking(struct video_device *vdev, unsigned int cmd)
{
#define BASE_VIDIOC_PRIVATE 192
if (_IOC_NR(cmd) < BASE_VIDIOC_PRIVATE)
set_bit(_IOC_NR(cmd), vdev->disable_locking);
}
/* Mark that this command isn't implemented. This must be called before
video_device_register. See also the comments in determine_valid_ioctls().
This function allows drivers to provide just one v4l2_ioctl_ops struct, but
disable ioctls based on the specific card that is actually found. */
static inline void v4l2_disable_ioctl(struct video_device *vdev, unsigned int cmd)
{
#define BASE_VIDIOC_PRIVATE 192
if (_IOC_NR(cmd) < BASE_VIDIOC_PRIVATE)
set_bit(_IOC_NR(cmd), vdev->valid_ioctls);
}
/* helper functions to access driver private data. */
static inline void *video_get_drvdata(struct video_device *vdev)
{
//return dev_get_drvdata(&vdev->dev);
return (vdev->dev_driver_data);
}
static inline void video_set_drvdata(struct video_device *vdev, void *data)
{
//dev_set_drvdata(&vdev->dev, data);
vdev->dev_driver_data = data;
}
struct video_device *video_devdata();
/* Combine video_get_drvdata and video_devdata as this is
used very often. */
static inline void *video_drvdata()
{
return video_get_drvdata(video_devdata());
}
static inline const char *video_device_node_name(struct video_device *vdev)
{
//return dev_name(&vdev->dev);
return (vdev->init_name);
}
static inline int video_is_registered(struct video_device *vdev)
{
return test_bit(V4L2_FL_REGISTERED, &vdev->flags);
}
#endif /* _V4L2_DEV_H */

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/*
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-device.h"
#include "v4l2-subdev.h"
#include "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;
//void *dev;
void *dev_driver_data;
//edit by Ian
//unsigned long dev_ref_count;
#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;
_Lock 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;
_Mutex ioctl_lock;
/* Keep track of the references to this struct. */
//struct kref ref;
unsigned long 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);
atomic_inc((atomic_t *)&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 v4l2_device_register(struct v4l2_device *v4l2_dev);
int v4l2_device_register(void *dev_prive_date, 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 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 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, struct v4l2_subdev)
/* 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, struct v4l2_subdev) \
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, struct v4l2_subdev) { \
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, struct v4l2_subdev) { \
if (v4l2_subdev_has_op(__sd, o, f)) { \
__result = true; \
break; \
} \
} \
__result; \
})
#endif

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/*
* v4l2-event.h
*
* V4L2 events.
*
* Copyright (C) 2009--2010 Nokia Corporation.
*
* Contact: Sakari Ailus <sakari.ailus@iki.fi>
*
* 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
*/
#ifndef V4L2_EVENT_H
#define V4L2_EVENT_H
#if 0
#include <linux/types.h>
#include <linux/wait.h>
#endif
#include "v4l2-osdep.h"
#include "videodev2.h"
/*
* Overview:
*
* Events are subscribed per-filehandle. An event specification consists of a
* type and is optionally associated with an object identified through the
* 'id' field. So an event is uniquely identified by the (type, id) tuple.
*
* The v4l2-fh struct has a list of subscribed events. The v4l2_subscribed_event
* struct is added to that list, one for every subscribed event.
*
* Each v4l2_subscribed_event struct ends with an array of v4l2_kevent structs.
* This array (ringbuffer, really) is used to store any events raised by the
* driver. The v4l2_kevent struct links into the 'available' list of the
* v4l2_fh struct so VIDIOC_DQEVENT will know which event to dequeue first.
*
* Finally, if the event subscription is associated with a particular object
* such as a V4L2 control, then that object needs to know about that as well
* so that an event can be raised by that object. So the 'node' field can
* be used to link the v4l2_subscribed_event struct into a list of that
* object.
*
* So to summarize:
*
* struct v4l2_fh has two lists: one of the subscribed events, and one of the
* pending events.
*
* struct v4l2_subscribed_event has a ringbuffer of raised (pending) events of
* that particular type.
*
* If struct v4l2_subscribed_event is associated with a specific object, then
* that object will have an internal list of struct v4l2_subscribed_event so
* it knows who subscribed an event to that object.
*/
struct v4l2_fh;
struct v4l2_subdev;
struct v4l2_subscribed_event;
struct video_device;
/** struct v4l2_kevent - Internal kernel event struct.
* @list: List node for the v4l2_fh->available list.
* @sev: Pointer to parent v4l2_subscribed_event.
* @event: The event itself.
*/
struct v4l2_kevent {
struct list_head list;
struct v4l2_subscribed_event *sev;
struct v4l2_event event;
};
/** struct v4l2_subscribed_event_ops - Subscribed event operations.
* @add: Optional callback, called when a new listener is added
* @del: Optional callback, called when a listener stops listening
* @replace: Optional callback that can replace event 'old' with event 'new'.
* @merge: Optional callback that can merge event 'old' into event 'new'.
*/
struct v4l2_subscribed_event_ops {
int (*add)(struct v4l2_subscribed_event *sev, unsigned elems);
void (*del)(struct v4l2_subscribed_event *sev);
void (*replace)(struct v4l2_event *old, const struct v4l2_event *new);
void (*merge)(const struct v4l2_event *old, struct v4l2_event *new);
};
/** struct v4l2_subscribed_event - Internal struct representing a subscribed event.
* @list: List node for the v4l2_fh->subscribed list.
* @type: Event type.
* @id: Associated object ID (e.g. control ID). 0 if there isn't any.
* @flags: Copy of v4l2_event_subscription->flags.
* @fh: Filehandle that subscribed to this event.
* @node: List node that hooks into the object's event list (if there is one).
* @ops: v4l2_subscribed_event_ops
* @elems: The number of elements in the events array.
* @first: The index of the events containing the oldest available event.
* @in_use: The number of queued events.
* @events: An array of @elems events.
*/
struct v4l2_subscribed_event {
struct list_head list;
u32 type;
u32 id;
u32 flags;
struct v4l2_fh *fh;
struct list_head node;
const struct v4l2_subscribed_event_ops *ops;
unsigned elems;
unsigned first;
unsigned in_use;
struct v4l2_kevent events[];
};
int v4l2_event_dequeue(struct v4l2_fh *fh, struct v4l2_event *event,
int nonblocking);
void v4l2_event_queue(struct video_device *vdev, const struct v4l2_event *ev);
void v4l2_event_queue_fh(struct v4l2_fh *fh, const struct v4l2_event *ev);
int v4l2_event_pending(struct v4l2_fh *fh);
int v4l2_event_subscribe(struct v4l2_fh *fh,
const struct v4l2_event_subscription *sub, unsigned elems,
const struct v4l2_subscribed_event_ops *ops);
int v4l2_event_unsubscribe(struct v4l2_fh *fh,
const struct v4l2_event_subscription *sub);
void v4l2_event_unsubscribe_all(struct v4l2_fh *fh);
int v4l2_event_subdev_unsubscribe(struct v4l2_subdev *sd, struct v4l2_fh *fh,
struct v4l2_event_subscription *sub);
#endif /* V4L2_EVENT_H */

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/*
* v4l2-fh.h
*
* V4L2 file handle. Store per file handle data for the V4L2
* framework. Using file handles is optional for the drivers.
*
* Copyright (C) 2009--2010 Nokia Corporation.
*
* Contact: Sakari Ailus <sakari.ailus@iki.fi>
*
* 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
*/
#ifndef V4L2_FH_H
#define V4L2_FH_H
//#include <linux/list.h>
#include "v4l2-osdep.h"
struct video_device;
struct v4l2_ctrl_handler;
struct v4l2_fh {
struct list_head list;
struct video_device *vdev;
struct v4l2_ctrl_handler *ctrl_handler;
enum v4l2_priority prio;
/* Events */
//wait_queue_head_t wait;
_Sema wait;
struct list_head subscribed; /* Subscribed events */
struct list_head available; /* Dequeueable event */
unsigned int navailable;
u32 sequence;
};
/*
* Initialise the file handle. Parts of the V4L2 framework using the
* file handles should be initialised in this function. Must be called
* from driver's v4l2_file_operations->open() handler if the driver
* uses v4l2_fh.
*/
void v4l2_fh_init(struct v4l2_fh *fh, struct video_device *vdev);
/*
* Add the fh to the list of file handles on a video_device. The file
* handle must be initialised first.
*/
void v4l2_fh_add(struct v4l2_fh *fh);
/*
* Can be used as the open() op of v4l2_file_operations.
* It allocates a v4l2_fh and inits and adds it to the video_device associated
* with the file pointer.
*/
int v4l2_fh_open();
/*
* Remove file handle from the list of file handles. Must be called in
* v4l2_file_operations->release() handler if the driver uses v4l2_fh.
* On error filp->private_data will be NULL, otherwise it will point to
* the v4l2_fh struct.
*/
void v4l2_fh_del(struct v4l2_fh *fh);
/*
* Release resources related to a file handle. Parts of the V4L2
* framework using the v4l2_fh must release their resources here, too.
* Must be called in v4l2_file_operations->release() handler if the
* driver uses v4l2_fh.
*/
void v4l2_fh_exit(struct v4l2_fh *fh);
/*
* Can be used as the release() op of v4l2_file_operations.
* It deletes and exits the v4l2_fh associated with the file pointer and
* frees it. It will do nothing if filp->private_data (the pointer to the
* v4l2_fh struct) is NULL. This function always returns 0.
*/
int v4l2_fh_release();
/*
* Returns 1 if this filehandle is the only filehandle opened for the
* associated video_device. If fh is NULL, then it returns 0.
*/
int v4l2_fh_is_singular(struct v4l2_fh *fh);
/*
* Helper function with struct file as argument. If filp->private_data is
* NULL, then it will return 0.
*/
extern void *replace_files[16];
static inline int v4l2_fh_is_singular_file()
{
//struct v4l2_fh *fh = replace_files[0];
struct video_device *vdev = video_devdata();
struct v4l2_fh *fh = replace_files[vdev->minor];
return v4l2_fh_is_singular(fh);
}
#endif /* V4L2_EVENT_H */

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/*
* include/media/v4l2-int-device.h
*
* V4L2 internal ioctl interface.
*
* Copyright (C) 2007 Nokia Corporation.
*
* Contact: Sakari Ailus <sakari.ailus@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
*/
#ifndef V4L2_INT_DEVICE_H
#define V4L2_INT_DEVICE_H
#include "v4l2-common.h"
#define V4L2NAMESIZE 32
/*
*
* The internal V4L2 device interface core.
*
*/
enum v4l2_int_type {
v4l2_int_type_master = 1,
v4l2_int_type_slave
};
//struct module;
struct v4l2_int_device;
struct v4l2_int_master {
int (*attach)(struct v4l2_int_device *slave);
void (*detach)(struct v4l2_int_device *slave);
};
typedef int (v4l2_int_ioctl_func)(struct v4l2_int_device *);
typedef int (v4l2_int_ioctl_func_0)(struct v4l2_int_device *);
typedef int (v4l2_int_ioctl_func_1)(struct v4l2_int_device *, void *);
struct v4l2_int_ioctl_desc {
int num;
v4l2_int_ioctl_func *func;
};
struct v4l2_int_slave {
/* Don't touch master. */
struct v4l2_int_device *master;
char attach_to[V4L2NAMESIZE];
int num_ioctls;
struct v4l2_int_ioctl_desc *ioctls;
};
struct v4l2_int_device {
/* Don't touch head. */
struct LIST_HEADER head;
//struct module *module;
char name[V4L2NAMESIZE];
enum v4l2_int_type type;
union {
struct v4l2_int_master *master;
struct v4l2_int_slave *slave;
} u;
void *priv;
};
void v4l2_int_device_try_attach_all(void);
int v4l2_int_device_register(struct v4l2_int_device *d);
void v4l2_int_device_unregister(struct v4l2_int_device *d);
int v4l2_int_ioctl_0(struct v4l2_int_device *d, int cmd);
int v4l2_int_ioctl_1(struct v4l2_int_device *d, int cmd, void *arg);
/*
*
* Types and definitions for IOCTL commands.
*
*/
enum v4l2_power {
V4L2_POWER_OFF = 0,
V4L2_POWER_ON,
V4L2_POWER_STANDBY,
};
/* Slave interface type. */
enum v4l2_if_type {
/*
* Parallel 8-, 10- or 12-bit interface, used by for example
* on certain image sensors.
*/
V4L2_IF_TYPE_BT656,
};
enum v4l2_if_type_bt656_mode {
/*
* Modes without Bt synchronisation codes. Separate
* synchronisation signal lines are used.
*/
V4L2_IF_TYPE_BT656_MODE_NOBT_8BIT,
V4L2_IF_TYPE_BT656_MODE_NOBT_10BIT,
V4L2_IF_TYPE_BT656_MODE_NOBT_12BIT,
/*
* Use Bt synchronisation codes. The vertical and horizontal
* synchronisation is done based on synchronisation codes.
*/
V4L2_IF_TYPE_BT656_MODE_BT_8BIT,
V4L2_IF_TYPE_BT656_MODE_BT_10BIT,
};
struct v4l2_if_type_bt656 {
/*
* 0: Frame begins when vsync is high.
* 1: Frame begins when vsync changes from low to high.
*/
unsigned frame_start_on_rising_vs:1;
/* Use Bt synchronisation codes for sync correction. */
unsigned bt_sync_correct:1;
/* Swap every two adjacent image data elements. */
unsigned swap:1;
/* Inverted latch clock polarity from slave. */
unsigned latch_clk_inv:1;
/* Hs polarity. 0 is active high, 1 active low. */
unsigned nobt_hs_inv:1;
/* Vs polarity. 0 is active high, 1 active low. */
unsigned nobt_vs_inv:1;
enum v4l2_if_type_bt656_mode mode;
/* Minimum accepted bus clock for slave (in Hz). */
u32 clock_min;
/* Maximum accepted bus clock for slave. */
u32 clock_max;
/*
* Current wish of the slave. May only change in response to
* ioctls that affect image capture.
*/
u32 clock_curr;
};
struct v4l2_ifparm {
enum v4l2_if_type if_type;
union {
struct v4l2_if_type_bt656 bt656;
} u;
};
/* IOCTL command numbers. */
enum v4l2_int_ioctl_num {
/*
*
* "Proper" V4L ioctls, as in struct video_device.
*
*/
vidioc_int_enum_fmt_cap_num = 1,
vidioc_int_g_fmt_cap_num,
vidioc_int_s_fmt_cap_num,
vidioc_int_try_fmt_cap_num,
vidioc_int_queryctrl_num,
vidioc_int_g_ctrl_num,
vidioc_int_s_ctrl_num,
vidioc_int_cropcap_num,
vidioc_int_g_crop_num,
vidioc_int_s_crop_num,
vidioc_int_g_parm_num,
vidioc_int_s_parm_num,
vidioc_int_querystd_num,
vidioc_int_s_std_num,
vidioc_int_s_video_routing_num,
/*
*
* Strictly internal ioctls.
*
*/
/* Initialise the device when slave attaches to the master. */
vidioc_int_dev_init_num = 1000,
/* Delinitialise the device at slave detach. */
vidioc_int_dev_exit_num,
/* Set device power state. */
vidioc_int_s_power_num,
/*
* Get slave private data, e.g. platform-specific slave
* configuration used by the master.
*/
vidioc_int_g_priv_num,
/* Get slave interface parameters. */
vidioc_int_g_ifparm_num,
/* Does the slave need to be reset after VIDIOC_DQBUF? */
vidioc_int_g_needs_reset_num,
vidioc_int_enum_framesizes_num,
vidioc_int_enum_frameintervals_num,
/*
*
* VIDIOC_INT_* ioctls.
*
*/
/* VIDIOC_INT_RESET */
vidioc_int_reset_num,
/* VIDIOC_INT_INIT */
vidioc_int_init_num,
/*
*
* Start of private ioctls.
*
*/
vidioc_int_priv_start_num = 2000,
};
/*
*
* IOCTL wrapper functions for better type checking.
*
*/
#define V4L2_INT_WRAPPER_0(name) \
static inline int vidioc_int_##name(struct v4l2_int_device *d) \
{ \
return v4l2_int_ioctl_0(d, vidioc_int_##name##_num); \
} \
\
static inline struct v4l2_int_ioctl_desc \
vidioc_int_##name##_cb(int (*func) \
(struct v4l2_int_device *)) \
{ \
struct v4l2_int_ioctl_desc desc; \
\
desc.num = vidioc_int_##name##_num; \
desc.func = (v4l2_int_ioctl_func *)func; \
\
return desc; \
}
#define V4L2_INT_WRAPPER_1(name, arg_type, asterisk) \
static inline int vidioc_int_##name(struct v4l2_int_device *d, \
arg_type asterisk arg) \
{ \
return v4l2_int_ioctl_1(d, vidioc_int_##name##_num, \
(void *)(unsigned long)arg); \
} \
\
static inline struct v4l2_int_ioctl_desc \
vidioc_int_##name##_cb(int (*func) \
(struct v4l2_int_device *, \
arg_type asterisk)) \
{ \
struct v4l2_int_ioctl_desc desc; \
\
desc.num = vidioc_int_##name##_num; \
desc.func = (v4l2_int_ioctl_func *)func; \
\
return desc; \
}
V4L2_INT_WRAPPER_1(enum_fmt_cap, struct v4l2_fmtdesc, *);
V4L2_INT_WRAPPER_1(g_fmt_cap, struct v4l2_format, *);
V4L2_INT_WRAPPER_1(s_fmt_cap, struct v4l2_format, *);
V4L2_INT_WRAPPER_1(try_fmt_cap, struct v4l2_format, *);
V4L2_INT_WRAPPER_1(queryctrl, struct v4l2_queryctrl, *);
V4L2_INT_WRAPPER_1(g_ctrl, struct v4l2_control, *);
V4L2_INT_WRAPPER_1(s_ctrl, struct v4l2_control, *);
V4L2_INT_WRAPPER_1(cropcap, struct v4l2_cropcap, *);
V4L2_INT_WRAPPER_1(g_crop, struct v4l2_crop, *);
V4L2_INT_WRAPPER_1(s_crop, struct v4l2_crop, *);
V4L2_INT_WRAPPER_1(g_parm, struct v4l2_streamparm, *);
V4L2_INT_WRAPPER_1(s_parm, struct v4l2_streamparm, *);
V4L2_INT_WRAPPER_1(querystd, v4l2_std_id, *);
V4L2_INT_WRAPPER_1(s_std, v4l2_std_id, *);
V4L2_INT_WRAPPER_1(s_video_routing, struct v4l2_routing, *);
V4L2_INT_WRAPPER_0(dev_init);
V4L2_INT_WRAPPER_0(dev_exit);
V4L2_INT_WRAPPER_1(s_power, enum v4l2_power, );
V4L2_INT_WRAPPER_1(g_priv, void, *);
V4L2_INT_WRAPPER_1(g_ifparm, struct v4l2_ifparm, *);
V4L2_INT_WRAPPER_1(g_needs_reset, void, *);
V4L2_INT_WRAPPER_1(enum_framesizes, struct v4l2_frmsizeenum, *);
V4L2_INT_WRAPPER_1(enum_frameintervals, struct v4l2_frmivalenum, *);
V4L2_INT_WRAPPER_0(reset);
V4L2_INT_WRAPPER_0(init);
#endif

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/*
*
* V 4 L 2 D R I V E R H E L P E R A P I
*
* Moved from videodev2.h
*
* Some commonly needed functions for drivers (v4l2-common.o module)
*/
#ifndef _V4L2_IOCTL_H
#define _V4L2_IOCTL_H
#if 0
#include <linux/poll.h>
#include <linux/fs.h>
#include <linux/mutex.h>
#include <linux/compiler.h> /* need __user */
#endif
#include "v4l2-osdep.h"
#include "videodev2.h"
struct v4l2_fh;
struct v4l2_ioctl_ops {
/* ioctl callbacks */
/* VIDIOC_QUERYCAP handler */
int (*vidioc_querycap)(void *fh, struct v4l2_capability *cap);
/* Priority handling */
int (*vidioc_g_priority) (void *fh,
enum v4l2_priority *p);
int (*vidioc_s_priority) (void *fh,
enum v4l2_priority p);
/* VIDIOC_ENUM_FMT handlers */
int (*vidioc_enum_fmt_vid_cap) (void *fh,
struct v4l2_fmtdesc *f);
int (*vidioc_enum_fmt_vid_overlay) (void *fh,
struct v4l2_fmtdesc *f);
int (*vidioc_enum_fmt_vid_out) (void *fh,
struct v4l2_fmtdesc *f);
int (*vidioc_enum_fmt_vid_cap_mplane)(void *fh,
struct v4l2_fmtdesc *f);
int (*vidioc_enum_fmt_vid_out_mplane)(void *fh,
struct v4l2_fmtdesc *f);
/* VIDIOC_G_FMT handlers */
int (*vidioc_g_fmt_vid_cap) (void *fh,
struct v4l2_format *f);
int (*vidioc_g_fmt_vid_overlay)(void *fh,
struct v4l2_format *f);
int (*vidioc_g_fmt_vid_out) (void *fh,
struct v4l2_format *f);
int (*vidioc_g_fmt_vid_out_overlay)(void *fh,
struct v4l2_format *f);
int (*vidioc_g_fmt_vbi_cap) (void *fh,
struct v4l2_format *f);
int (*vidioc_g_fmt_vbi_out) (void *fh,
struct v4l2_format *f);
int (*vidioc_g_fmt_sliced_vbi_cap)(void *fh,
struct v4l2_format *f);
int (*vidioc_g_fmt_sliced_vbi_out)(void *fh,
struct v4l2_format *f);
int (*vidioc_g_fmt_vid_cap_mplane)(void *fh,
struct v4l2_format *f);
int (*vidioc_g_fmt_vid_out_mplane)(void *fh,
struct v4l2_format *f);
/* VIDIOC_S_FMT handlers */
int (*vidioc_s_fmt_vid_cap) (void *fh,
struct v4l2_format *f);
int (*vidioc_s_fmt_vid_overlay)(void *fh,
struct v4l2_format *f);
int (*vidioc_s_fmt_vid_out) (void *fh,
struct v4l2_format *f);
int (*vidioc_s_fmt_vid_out_overlay)(void *fh,
struct v4l2_format *f);
int (*vidioc_s_fmt_vbi_cap) (void *fh,
struct v4l2_format *f);
int (*vidioc_s_fmt_vbi_out) (void *fh,
struct v4l2_format *f);
int (*vidioc_s_fmt_sliced_vbi_cap)(void *fh,
struct v4l2_format *f);
int (*vidioc_s_fmt_sliced_vbi_out)(void *fh,
struct v4l2_format *f);
int (*vidioc_s_fmt_vid_cap_mplane)(void *fh,
struct v4l2_format *f);
int (*vidioc_s_fmt_vid_out_mplane)(void *fh,
struct v4l2_format *f);
/* VIDIOC_TRY_FMT handlers */
int (*vidioc_try_fmt_vid_cap) (void *fh,
struct v4l2_format *f);
int (*vidioc_try_fmt_vid_overlay)(void *fh,
struct v4l2_format *f);
int (*vidioc_try_fmt_vid_out) (void *fh,
struct v4l2_format *f);
int (*vidioc_try_fmt_vid_out_overlay)(void *fh,
struct v4l2_format *f);
int (*vidioc_try_fmt_vbi_cap) (void *fh,
struct v4l2_format *f);
int (*vidioc_try_fmt_vbi_out) (void *fh,
struct v4l2_format *f);
int (*vidioc_try_fmt_sliced_vbi_cap)(void *fh,
struct v4l2_format *f);
int (*vidioc_try_fmt_sliced_vbi_out)(void *fh,
struct v4l2_format *f);
int (*vidioc_try_fmt_vid_cap_mplane)(void *fh,
struct v4l2_format *f);
int (*vidioc_try_fmt_vid_out_mplane)(void *fh,
struct v4l2_format *f);
/* Buffer handlers */
int (*vidioc_reqbufs) (void *fh, struct v4l2_requestbuffers *b);
int (*vidioc_querybuf)(void *fh, struct v4l2_buffer *b);
int (*vidioc_qbuf) (void *fh, struct v4l2_buffer *b);
int (*vidioc_expbuf) (void *fh,
struct v4l2_exportbuffer *e);
int (*vidioc_dqbuf) (void *fh, struct v4l2_buffer *b);
int (*vidioc_create_bufs)(void *fh, struct v4l2_create_buffers *b);
int (*vidioc_prepare_buf)(void *fh, struct v4l2_buffer *b);
int (*vidioc_overlay) (void *fh, unsigned int i);
int (*vidioc_g_fbuf) (void *fh,
struct v4l2_framebuffer *a);
int (*vidioc_s_fbuf) (void *fh,
const struct v4l2_framebuffer *a);
/* Stream on/off */
int (*vidioc_streamon) (void *fh, enum v4l2_buf_type i);
int (*vidioc_streamoff)(void *fh, enum v4l2_buf_type i);
/* Standard handling
ENUMSTD is handled by videodev.c
*/
int (*vidioc_g_std) (void *fh, v4l2_std_id *norm);
int (*vidioc_s_std) (void *fh, v4l2_std_id norm);
int (*vidioc_querystd) (void *fh, v4l2_std_id *a);
/* Input handling */
int (*vidioc_enum_input)(void *fh,
struct v4l2_input *inp);
int (*vidioc_g_input) (void *fh, unsigned int *i);
int (*vidioc_s_input) (void *fh, unsigned int i);
/* Output handling */
int (*vidioc_enum_output) (void *fh,
struct v4l2_output *a);
int (*vidioc_g_output) (void *fh, unsigned int *i);
int (*vidioc_s_output) (void *fh, unsigned int i);
/* Control handling */
int (*vidioc_queryctrl) (void *fh,
struct v4l2_queryctrl *a);
int (*vidioc_g_ctrl) (void *fh,
struct v4l2_control *a);
int (*vidioc_s_ctrl) (void *fh,
struct v4l2_control *a);
int (*vidioc_g_ext_ctrls) (void *fh,
struct v4l2_ext_controls *a);
int (*vidioc_s_ext_ctrls) (void *fh,
struct v4l2_ext_controls *a);
int (*vidioc_try_ext_ctrls) (void *fh,
struct v4l2_ext_controls *a);
int (*vidioc_querymenu) (void *fh,
struct v4l2_querymenu *a);
/* Audio ioctls */
int (*vidioc_enumaudio) (void *fh,
struct v4l2_audio *a);
int (*vidioc_g_audio) (void *fh,
struct v4l2_audio *a);
int (*vidioc_s_audio) (void *fh,
const struct v4l2_audio *a);
/* Audio out ioctls */
int (*vidioc_enumaudout) (void *fh,
struct v4l2_audioout *a);
int (*vidioc_g_audout) (void *fh,
struct v4l2_audioout *a);
int (*vidioc_s_audout) (void *fh,
const struct v4l2_audioout *a);
int (*vidioc_g_modulator) (void *fh,
struct v4l2_modulator *a);
int (*vidioc_s_modulator) (void *fh,
const struct v4l2_modulator *a);
/* Crop ioctls */
int (*vidioc_cropcap) (void *fh,
struct v4l2_cropcap *a);
int (*vidioc_g_crop) (void *fh,
struct v4l2_crop *a);
int (*vidioc_s_crop) (void *fh,
const struct v4l2_crop *a);
int (*vidioc_g_selection) (void *fh,
struct v4l2_selection *s);
int (*vidioc_s_selection) (void *fh,
struct v4l2_selection *s);
/* Compression ioctls */
int (*vidioc_g_jpegcomp) (void *fh,
struct v4l2_jpegcompression *a);
int (*vidioc_s_jpegcomp) (void *fh,
const struct v4l2_jpegcompression *a);
int (*vidioc_g_enc_index) ( void *fh,
struct v4l2_enc_idx *a);
int (*vidioc_encoder_cmd) (void *fh,
struct v4l2_encoder_cmd *a);
int (*vidioc_try_encoder_cmd) (void *fh,
struct v4l2_encoder_cmd *a);
int (*vidioc_decoder_cmd) (void *fh,
struct v4l2_decoder_cmd *a);
int (*vidioc_try_decoder_cmd) (void *fh,
struct v4l2_decoder_cmd *a);
/* Stream type-dependent parameter ioctls */
int (*vidioc_g_parm) (void *fh,
struct v4l2_streamparm *a);
int (*vidioc_s_parm) (void *fh,
struct v4l2_streamparm *a);
/* Tuner ioctls */
int (*vidioc_g_tuner) (void *fh,
struct v4l2_tuner *a);
int (*vidioc_s_tuner) (void *fh,
const struct v4l2_tuner *a);
int (*vidioc_g_frequency) (void *fh,
struct v4l2_frequency *a);
int (*vidioc_s_frequency) (void *fh,
const struct v4l2_frequency *a);
int (*vidioc_enum_freq_bands) (void *fh,
struct v4l2_frequency_band *band);
/* Sliced VBI cap */
int (*vidioc_g_sliced_vbi_cap) (void *fh,
struct v4l2_sliced_vbi_cap *a);
/* Log status ioctl */
int (*vidioc_log_status) ( void *fh);
int (*vidioc_s_hw_freq_seek) (void *fh,
const struct v4l2_hw_freq_seek *a);
/* Debugging ioctls */
#ifdef CONFIG_VIDEO_ADV_DEBUG
int (*vidioc_g_register) (void *fh,
struct v4l2_dbg_register *reg);
int (*vidioc_s_register) (void *fh,
const struct v4l2_dbg_register *reg);
int (*vidioc_g_chip_info) (void *fh,
struct v4l2_dbg_chip_info *chip);
#endif
int (*vidioc_enum_framesizes) (void *fh,
struct v4l2_frmsizeenum *fsize);
int (*vidioc_enum_frameintervals) (void *fh,
struct v4l2_frmivalenum *fival);
/* DV Timings IOCTLs */
int (*vidioc_s_dv_timings) (void *fh,
struct v4l2_dv_timings *timings);
int (*vidioc_g_dv_timings) (void *fh,
struct v4l2_dv_timings *timings);
int (*vidioc_query_dv_timings) ( void *fh,
struct v4l2_dv_timings *timings);
int (*vidioc_enum_dv_timings) (void *fh,
struct v4l2_enum_dv_timings *timings);
int (*vidioc_dv_timings_cap) (void *fh,
struct v4l2_dv_timings_cap *cap);
int (*vidioc_subscribe_event) (struct v4l2_fh *fh,
const struct v4l2_event_subscription *sub);
int (*vidioc_unsubscribe_event)(struct v4l2_fh *fh,
const struct v4l2_event_subscription *sub);
/* For other private ioctls */
long (*vidioc_default) (void *fh,
bool valid_prio, unsigned int cmd, void *arg);
};
/* v4l debugging and diagnostics */
/* Debug bitmask flags to be used on V4L2 */
#define V4L2_DEBUG_IOCTL 0x01
#define V4L2_DEBUG_IOCTL_ARG 0x02
/* Video standard functions */
extern const char *v4l2_norm_to_name(v4l2_std_id id);
extern void v4l2_video_std_frame_period(int id, struct v4l2_fract *frameperiod);
extern int v4l2_video_std_construct(struct v4l2_standard *vs,
int id, const char *name);
/* Prints the ioctl in a human-readable format. If prefix != NULL,
then do printk(KERN_DEBUG "%s: ", prefix) first. */
extern void v4l_printk_ioctl(const char *prefix, unsigned int cmd);
/* Internal use only: get the mutex (if any) that we need to lock for the
given command. */
struct video_device;
extern _Mutex *v4l2_ioctl_get_lock(struct video_device *vdev, unsigned cmd);
/* names for fancy debug output */
extern const char *v4l2_field_names[];
extern const char *v4l2_type_names[];
#ifdef CONFIG_COMPAT
/* 32 Bits compatibility layer for 64 bits processors */
extern long v4l2_compat_ioctl32(unsigned int cmd, unsigned long arg);
#endif
typedef long (*v4l2_kioctl)(unsigned int cmd, void *arg);
/* Include support for obsoleted stuff */
extern long video_usercopy(unsigned int cmd, unsigned long arg, v4l2_kioctl func);
/* Standard handlers for V4L ioctl's */
extern long video_ioctl2(unsigned int cmd, unsigned long arg);
#endif /* _V4L2_IOCTL_H */

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/*
* Media Bus API header
*
* Copyright (C) 2009, 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_MEDIABUS_H
#define V4L2_MEDIABUS_H
#include "v4l2-mediabus.h"
/* Parallel flags */
/*
* Can the client run in master or in slave mode. By "Master mode" an operation
* mode is meant, when the client (e.g., a camera sensor) is producing
* horizontal and vertical synchronisation. In "Slave mode" the host is
* providing these signals to the slave.
*/
#define V4L2_MBUS_MASTER (1 << 0)
#define V4L2_MBUS_SLAVE (1 << 1)
/*
* Signal polarity flags
* Note: in BT.656 mode HSYNC, FIELD, and VSYNC are unused
* V4L2_MBUS_[HV]SYNC* flags should be also used for specifying
* configuration of hardware that uses [HV]REF signals
*/
#define V4L2_MBUS_HSYNC_ACTIVE_HIGH (1 << 2)
#define V4L2_MBUS_HSYNC_ACTIVE_LOW (1 << 3)
#define V4L2_MBUS_VSYNC_ACTIVE_HIGH (1 << 4)
#define V4L2_MBUS_VSYNC_ACTIVE_LOW (1 << 5)
#define V4L2_MBUS_PCLK_SAMPLE_RISING (1 << 6)
#define V4L2_MBUS_PCLK_SAMPLE_FALLING (1 << 7)
#define V4L2_MBUS_DATA_ACTIVE_HIGH (1 << 8)
#define V4L2_MBUS_DATA_ACTIVE_LOW (1 << 9)
/* FIELD = 0/1 - Field1 (odd)/Field2 (even) */
#define V4L2_MBUS_FIELD_EVEN_HIGH (1 << 10)
/* FIELD = 1/0 - Field1 (odd)/Field2 (even) */
#define V4L2_MBUS_FIELD_EVEN_LOW (1 << 11)
/* Active state of Sync-on-green (SoG) signal, 0/1 for LOW/HIGH respectively. */
#define V4L2_MBUS_VIDEO_SOG_ACTIVE_HIGH (1 << 12)
#define V4L2_MBUS_VIDEO_SOG_ACTIVE_LOW (1 << 13)
/* Serial flags */
/* How many lanes the client can use */
#define V4L2_MBUS_CSI2_1_LANE (1 << 0)
#define V4L2_MBUS_CSI2_2_LANE (1 << 1)
#define V4L2_MBUS_CSI2_3_LANE (1 << 2)
#define V4L2_MBUS_CSI2_4_LANE (1 << 3)
/* On which channels it can send video data */
#define V4L2_MBUS_CSI2_CHANNEL_0 (1 << 4)
#define V4L2_MBUS_CSI2_CHANNEL_1 (1 << 5)
#define V4L2_MBUS_CSI2_CHANNEL_2 (1 << 6)
#define V4L2_MBUS_CSI2_CHANNEL_3 (1 << 7)
/* Does it support only continuous or also non-continuous clock mode */
#define V4L2_MBUS_CSI2_CONTINUOUS_CLOCK (1 << 8)
#define V4L2_MBUS_CSI2_NONCONTINUOUS_CLOCK (1 << 9)
#define V4L2_MBUS_CSI2_LANES (V4L2_MBUS_CSI2_1_LANE | V4L2_MBUS_CSI2_2_LANE | \
V4L2_MBUS_CSI2_3_LANE | V4L2_MBUS_CSI2_4_LANE)
#define V4L2_MBUS_CSI2_CHANNELS (V4L2_MBUS_CSI2_CHANNEL_0 | V4L2_MBUS_CSI2_CHANNEL_1 | \
V4L2_MBUS_CSI2_CHANNEL_2 | V4L2_MBUS_CSI2_CHANNEL_3)
/**
* v4l2_mbus_type - media bus type
* @V4L2_MBUS_PARALLEL: parallel interface with hsync and vsync
* @V4L2_MBUS_BT656: parallel interface with embedded synchronisation, can
* also be used for BT.1120
* @V4L2_MBUS_CSI2: MIPI CSI-2 serial interface
*/
enum v4l2_mbus_type {
V4L2_MBUS_PARALLEL,
V4L2_MBUS_BT656,
V4L2_MBUS_CSI2,
};
/**
* v4l2_mbus_config - media bus configuration
* @type: in: interface type
* @flags: in / out: configuration flags, depending on @type
*/
struct v4l2_mbus_config {
enum v4l2_mbus_type type;
unsigned int flags;
};
#if 0
static inline void v4l2_fill_pix_format(struct v4l2_pix_format *pix_fmt,
const struct v4l2_mbus_framefmt *mbus_fmt)
{
pix_fmt->width = mbus_fmt->width;
pix_fmt->height = mbus_fmt->height;
pix_fmt->field = mbus_fmt->field;
pix_fmt->colorspace = mbus_fmt->colorspace;
}
static inline void v4l2_fill_mbus_format(struct v4l2_mbus_framefmt *mbus_fmt,
const struct v4l2_pix_format *pix_fmt,
enum v4l2_mbus_pixelcode code)
{
mbus_fmt->width = pix_fmt->width;
mbus_fmt->height = pix_fmt->height;
mbus_fmt->field = pix_fmt->field;
mbus_fmt->colorspace = pix_fmt->colorspace;
mbus_fmt->code = code;
}
#endif
#endif

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#ifndef _V4L2_OSDEP_H_
#define _V4L2_OSDEP_H_
#include "platform/platform_stdlib.h"
#include "basic_types.h"
#include "osdep_api.h"
#include "usb_defs.h"
#include "errno.h"
//#include "hal_util.h"
#include "dlist.h"
#define V4L2_LAYER_DEBUG 0
#if V4L2_LAYER_DEBUG
#define V4L2_PRINTF(fmt, args...) printf("\n\r%s: " fmt, __FUNCTION__, ## args)
#define V4L2_ERROR(fmt, args...) printf("\n\r%s: " fmt, __FUNCTION__, ## args)
#else
#define V4L2_PRINTF(fmt, args...)
#define V4L2_ERROR(fmt, args...) printf("\n\r%s: " fmt, __FUNCTION__, ## args)
#endif
/* misc items */
#ifndef ssize_t
#define ssize_t SSIZE_T
#endif
#ifndef size_t
#define size_t SIZE_T
#endif
#ifndef __user
#define __user
#endif
#ifndef loff_t
#define loff_t long
#endif
#ifndef __u8
#define __u8 u8
#endif
#ifndef __u16
#define __u16 u16
#endif
#ifndef __u32
#define __u32 u32
#endif
#ifndef __u64
#define __u64 u64
#endif
#ifndef __s8
#define __s8 s8
#endif
#ifndef __s16
#define __s16 s16
#endif
#ifndef __s32
#define __s32 s32
#endif
#ifndef __s64
#define __s64 s64
#endif
#ifndef spinlock_t
#define spinlock_t _Lock
#endif
#ifndef gfp_t
#define gfp_t u32
#endif
#ifndef _atomic_spin_lock_irqsave
#define _atomic_spin_lock_irqsave(p, flags) SaveAndCli()
#endif
#ifndef _atomic_spin_unlock_irqrestore
#define _atomic_spin_unlock_irqrestore(p, flags) RestoreFlags()
#endif
#ifndef local_irq_save
#define local_irq_save(flags) SaveAndCli()
#endif
#ifndef local_irq_restore
#define local_irq_restore(flags) RestoreFlags()
#endif
#ifndef cris_atomic_save
#define cris_atomic_save(addr, flags) local_irq_save(flags)
#endif
#ifndef cris_atomic_restore
#define cris_atomic_restore(addr, flags) local_irq_restore(flags)
#endif
/*
* abs() handles unsigned and signed longs, ints, shorts and chars. For all
* input types abs() returns a signed long.
* abs() should not be used for 64-bit types (s64, u64, long long) - use abs64()
* for those.
*/
#ifndef abs
#define abs(x) ((x >= 0) ? (x) : (x * -1))
#endif
#ifndef min
#define min(x, y) ((x) < (y) ? (x) : (y))
#endif
#ifndef max
#define max(x, y) ((x) > (y) ? (x) : (y))
#endif
#ifndef min_t
#define min_t(type, x, y) ({ \
type __min1 = (x); \
type __min2 = (y); \
(__min1 < __min2) ? (__min1) : (__min2); })
#endif
#ifndef max_t
#define max_t(type, x, y) ({ \
type __max1 = (x); \
type __max2 = (y); \
(__max1 > __max2) ? (__max1) : (__max2); })
#endif
#ifndef max_tt
#define max_tt(ret,type,x,y) do{ \
type __max1 = (x); \
type __max2 = (y); \
ret = (__max1 > __max2) ? (__max1) : (__max2); }while(0)
#endif
#ifndef min_tt
#define min_tt(ret,type, x, y) do{ \
type __min1 = (x); \
type __min2 = (y); \
ret = (__min1 < __min2) ? (__min1) : (__min2); }while(0)
#endif
/**
* container_of - cast a member of a structure out to the containing structure
* @p(ptr): the pointer to the member.
* @t(type): the type of the container struct this is embedded in.
* @m(member): the name of the member within the struct.
*
*/
#ifndef container_of
#define container_of(ptr, type, member) \
((type *)((char *)(ptr)-(SIZE_T)(&((type *)0)->member)))
#endif
/**
* list_next_entry - get the next element in list
* @pos: the type * to cursor
* @member: the name of the list_struct within the struct.
*/
#define list_next_entry(pos, member, type) \
list_entry((pos)->member.next, type, member)
/**
* list_for_each_entry_continue - continue iteration over list of given type
* @pos: the type * to use as a loop cursor.
* @head: the head for your list.
* @member: the name of the list_struct within the struct.
*
* Continue to iterate over list of given type, continuing after
* the current position.
*/
#define list_for_each_entry_continue(pos, head, member, type) \
for (pos = list_next_entry(pos, member, type); \
&pos->member != (head); \
pos = list_next_entry(pos, member, type))
/* spin lock */
#ifndef spin_lock_init
#define spin_lock_init(plock) RtlSpinlockInit((plock))
#endif
#ifndef spin_lock_free
#define spin_lock_free(plock) RtlSpinlockFree((plock))
#endif
#ifndef spin_lock
#define spin_lock(plock) RtlSpinlock((plock))
#endif
#ifndef spin_unlock
#define spin_unlock(plock) RtlSpinunlock((plock))
#endif
/* mutex */
#ifndef Mutex
#define Mutex _Mutex
#endif
#ifndef mutex_init
#define mutex_init(pmutex) RtlMutexInit((pmutex))
#endif
#ifndef mutex_lock
#define mutex_lock(pmutex) RtlDownSema((pmutex))
#endif
#ifndef mutex_unlock
#define mutex_unlock(pmutex) RtlUpSema((pmutex))
#endif
#ifndef mutex_destory
#define mutex_destory(pmutex) RtlMutexFree((pmutex))
#endif
/* semaphore */
#ifndef Sema
#define Sema _Sema
#endif
#ifndef Sema_Init
#define Sema_Init(pmutex, pval) RtlInitSema(pmutex, pval)
#endif
#ifndef Sema_Free
#define Sema_Free(pmutex) RtlFreeSema(pmutex)
#endif
#ifndef Sema_Up
#define Sema_Up(pmutex) RtlUpSema(pmutex)
#endif
#ifndef Sema_Down
#define Sema_Down(pmutex) RtlDownSema(pmutex)
#endif
#ifndef Sema_Sown_WithTimeout
#define Sema_Down_WithTimeout(pmutex,ptimeout) RtlDownSemaWithTimeout(pmutex,ptimeout) //
#endif
/* Atomic integer operations */
#ifndef atomic_set
#define atomic_set(v, i) RTL_ATOMIC_SET((v), (i))
#endif
#ifndef atomic_read
#define atomic_read(v) RTL_ATOMIC_READ((v))
#endif
#ifndef atomic_add
#define atomic_add(v, i) RTL_ATOMIC_ADD((v), (i))
#endif
#ifndef atomic_sub
#define atomic_sub(v, i) RTL_ATOMIC_SUB((v), (i))
#endif
#ifndef atomic_inc
#define atomic_inc(v) RTL_ATOMIC_INC((v))
#endif
#ifndef atomic_dec
#define atomic_dec(v) RTL_ATOMIC_DEC((v))
#endif
// IOCTL ...
#ifndef _IOC_NRBITS
#define _IOC_NRBITS (8)
#endif
#ifndef _IOC_TYPEBITS
#define _IOC_TYPEBITS (8)
#endif
#ifndef _IOC_SIZEBITS
#define _IOC_SIZEBITS (14)
#endif
#ifndef _IOC_DIRBITS
#define _IOC_DIRBITS (2)
#endif
#ifndef _IOC_NRMASK
#define _IOC_NRMASK ((1 << _IOC_NRBITS) - 1)
#endif
#ifndef _IOC_TYPEMASK
#define _IOC_TYPEMASK ((1 << _IOC_TYPEBITS) - 1)
#endif
#ifndef _IOC_SIZEMASK
#define _IOC_SIZEMASK ((1 << _IOC_SIZEBITS) - 1)
#endif
#ifndef _IOC_DIRMASK
#define _IOC_DIRMASK ((1 << _IOC_DIRBITS) - 1)
#endif
#ifndef _IOC_NRSHIFT
#define _IOC_NRSHIFT (0)
#endif
#ifndef _IOC_TYPESHIFT
#define _IOC_TYPESHIFT (_IOC_NRSHIFT + _IOC_NRBITS)
#endif
#ifndef _IOC_SIZESHIFT
#define _IOC_SIZESHIFT (_IOC_TYPESHIFT + _IOC_TYPEBITS)
#endif
#ifndef _IOC_DIRSHIFT
#define _IOC_DIRSHIFT (_IOC_SIZESHIFT + _IOC_SIZEBITS)
#endif
/*
* Direction bits.
*/
#ifndef _IOC_NONE
#define _IOC_NONE (0U)
#endif
#ifndef _IOC_WRITE
#define _IOC_WRITE (1U)
#endif
#ifndef _IOC_READ
#define _IOC_READ (2U)
#endif
/*
* combine the four dir，type，nr，size parameters to one cmd parameter
*
*/
#ifndef _IOC
#define _IOC(dir,type,nr,size) \
(((dir) << _IOC_DIRSHIFT) | \
((type) << _IOC_TYPESHIFT) | \
((nr) << _IOC_NRSHIFT) | \
((size) << _IOC_SIZESHIFT))
#endif
/*
* used to create IOCTL cmd
*/
#ifndef _IO
#define _IO(type,nr) _IOC(_IOC_NONE,(type), (nr), 0)
#endif
#ifndef _IOR
#define _IOR(type,nr,size) _IOC(_IOC_READ,(type), (nr), sizeof(size))
#endif
#ifndef _IOW
#define _IOW(type,nr,size) _IOC(_IOC_WRITE,(type), (nr), sizeof(size))
#endif
#ifndef _IOWR
#define _IOWR(type,nr,size) _IOC(_IOC_READ|_IOC_WRITE, (type), (nr), sizeof(size))
#endif
/*
* used to decode ioctl infoations..
*/
#ifndef _IOC_DIR
#define _IOC_DIR(nr) (((nr) >> _IOC_DIRSHIFT) & _IOC_DIRMASK)
#endif
#ifndef _IOC_TYPE
#define _IOC_TYPE(nr) (((nr) >> _IOC_TYPESHIFT) & _IOC_TYPEMASK)
#endif
#ifndef _IOC_NR
#define _IOC_NR(nr) (((nr) >> _IOC_NRSHIFT) & _IOC_NRMASK)
#endif
#ifndef _IOC_SIZE
#define _IOC_SIZE(nr) (((nr) >> _IOC_SIZESHIFT) & _IOC_SIZEMASK)
#endif
/* ...and for the drivers/sound files... */
#ifndef IOC_IN
#define IOC_IN (_IOC_WRITE << _IOC_DIRSHIFT)
#endif
#ifndef IOC_OUT
#define IOC_OUT (_IOC_READ << _IOC_DIRSHIFT)
#endif
#ifndef IOC_INOUT
#define IOC_INOUT ((_IOC_WRITE|_IOC_READ) << _IOC_DIRSHIFT)
#endif
#ifndef IOCSIZE_MASK
#define IOCSIZE_MASK (_IOC_SIZEMASK << _IOC_SIZESHIFT)
#endif
#ifndef IOCSIZE_SHIFT
#define IOCSIZE_SHIFT (_IOC_SIZESHIFT)
#endif
#ifndef DIV_ROUND_UP
#define DIV_ROUND_UP(n,d) (((n) + (d) - 1) / (d))
#endif
#ifndef BITS_PER_LONG
#define BITS_PER_LONG (32)
#endif
#ifndef BITS_PER_LONG_LONG
#define BITS_PER_LONG_LONG (32)
#endif
#ifndef BIT
#define BIT(nr) (1UL << (nr))
#endif
#ifndef BIT_ULL
#define BIT_ULL(nr) (1ULL << (nr))
#endif
#ifndef BIT_MASK
#define BIT_MASK(nr) (1UL << ((nr) % BITS_PER_LONG))
#endif
#ifndef BIT_WORD
#define BIT_WORD(nr) ((nr) / BITS_PER_LONG)
#endif
#ifndef BIT_ULL_MASK
#define BIT_ULL_MASK(nr) (1ULL << ((nr) % BITS_PER_LONG_LONG))
#endif
#ifndef BIT_ULL_WORD
#define BIT_ULL_WORD(nr) ((nr) / BITS_PER_LONG_LONG)
#endif
#ifndef BITS_PER_BYTE
#define BITS_PER_BYTE (8)
#endif
#ifndef BITS_TO_LONGS
#define BITS_TO_LONGS(nr) DIV_ROUND_UP(nr, BITS_PER_BYTE * sizeof(long))
#endif
/* __ffs to find out the first exist 1 offset, from bit 0 ~ 31 */
#ifndef ffz
#define ffz(x) __ffs(~(x))
#endif
/* __builtin_constant_p is gcc build-in function to check the parameter is const or not */
#ifndef small_const_nbits
#define small_const_nbits(nbits) \
(__builtin_constant_p(nbits) && (nbits) <= BITS_PER_LONG)
#endif
/**
* __ffs - find first bit in word.
* @word: The word to search
*
* Undefined if no bit exists, so code should check against 0 first.
*/
static inline unsigned long __ffs(unsigned long word)
{
int num = 0;
#if BITS_PER_LONG == 64
if ((word & 0xffffffff) == 0) {
num += 32;
word >>= 32;
}
#endif
if ((word & 0xffff) == 0) {
num += 16;
word >>= 16;
}
if ((word & 0xff) == 0) {
num += 8;
word >>= 8;
}
if ((word & 0xf) == 0) {
num += 4;
word >>= 4;
}
if ((word & 0x3) == 0) {
num += 2;
word >>= 2;
}
if ((word & 0x1) == 0)
num += 1;
return num;
}
/**
* __fls - find last (most-significant) set bit in a long word
* @word: the word to search
*
* Undefined if no set bit exists, so code should check against 0 first.
*/
static inline unsigned long __fls(unsigned long word)
{
int num = BITS_PER_LONG - 1;
#if BITS_PER_LONG == 64
if (!(word & (~0ul << 32))) {
num -= 32;
word <<= 32;
}
#endif
if (!(word & (~0ul << (BITS_PER_LONG-16)))) {
num -= 16;
word <<= 16;
}
if (!(word & (~0ul << (BITS_PER_LONG-8)))) {
num -= 8;
word <<= 8;
}
if (!(word & (~0ul << (BITS_PER_LONG-4)))) {
num -= 4;
word <<= 4;
}
if (!(word & (~0ul << (BITS_PER_LONG-2)))) {
num -= 2;
word <<= 2;
}
if (!(word & (~0ul << (BITS_PER_LONG-1))))
num -= 1;
return num;
}
/**
* test_bit - Determine whether a bit is set
* @nr: bit number to test
* @addr: Address to start counting from
*/
static inline int test_bit(int nr, const volatile unsigned long *addr)
{
return ((1UL << (nr & 31)) & (addr[nr >> 5])) != 0;
}
/*
* Find the first cleared bit in a memory region.
*/
static inline unsigned long find_first_zero_bit(
const unsigned long *addr, unsigned long size)
{
const unsigned long *p = addr;
unsigned long result = 0;
unsigned long tmp;
while (size & ~(BITS_PER_LONG-1)) {
if (~(tmp = *(p++)))
goto found;
result += BITS_PER_LONG;
size -= BITS_PER_LONG;
}
if (!size)
return result;
tmp = (*p) | (~0UL << size);
if (tmp == ~0UL) /* Are any bits zero? */
return result + size; /* Nope. */
found:
return result + ffz(tmp);
//tmp = 0;
//return result;
}
static inline unsigned long find_next_zero_bit(
const unsigned long *addr,unsigned long size, unsigned long offset)
{
const unsigned long *p = addr + BIT_WORD(offset); // offset位于p指向的long地址32位空?
unsigned long result = offset & ~(BITS_PER_LONG-1); // offset是第result?4字?
unsigned long tmp;
if (offset >= size)
return size;
size -= result; // ?整32位整倍?上
offset %= BITS_PER_LONG; // offset位于32位的第几位
if (offset) { // offset不在一?long?据的第0位上,在1-31位中[luther.gliethttp]
tmp = *(p++);
tmp |= ~0UL >> (BITS_PER_LONG - offset); // ?0-offset?据填充上1.
if (size < BITS_PER_LONG) // 不足32bits
goto found_first;
if (~tmp) // 取非非0?明含有0值
goto found_middle;
size -= BITS_PER_LONG; // 如果上面~tmp等于0,那么?明?*p?据?32位全1.[luther.gliethttp]
result += BITS_PER_LONG;
}
while (size & ~(BITS_PER_LONG-1)) { // 好了,?行到?里,我?的offset已??在4字?的第0位上,下面?行
if (~(tmp = *(p++))) // 4字?快速查?.如果~tmp非0,?明?32位?据中含有0?据,找到.[luther.gliethttp]
goto found_middle;
result += BITS_PER_LONG; // 到下一?4字?空?
size -= BITS_PER_LONG; // ?少4字??据
}
if (!size) // size等于0,?明首先size等于4字?整倍?,其次所有?据已?查完,
return result; // 所有?据全部?1,?有??0位,result等于size.[luther.gliethttp]
tmp = *p; // size不是32位整倍?,?剩几?bit?有?查,???行下面?查工作.[luther.gliethtp]
found_first:
tmp |= ~0UL << size; // ?在0-size?有效?据,size-31?未使用空?,所以先?size-31置成全1.
if (tmp == ~0UL) /* Are any bits zero? */ // 如果tmp全1,那么?明就?找找1?
return result + size; /* Nope. */ // result+size就等于函??入的??size大小.[luther.gliethttp]
found_middle:
return result + ffz(tmp); // 我?在32位?据的0-31中??必定存在0位值,?算他是第几位.[luther.gliethttp]
}
//int find_next_zero_bit(const void * p, int size, int offset);
//int find_first_bit(const unsigned long *p, unsigned size);
//int find_next_bit(const unsigned long *p, int size, int offset);
/**
* set_bit - Atomically set a bit in memory
* @nr: the bit to set
* @addr: the address to start counting from
*
* This function is atomic and may not be reordered. See __set_bit()
* if you do not require the atomic guarantees.
*
* Note: there are no guarantees that this function will not be reordered
* on non x86 architectures, so if you are writing portable code,
* make sure not to rely on its reordering guarantees.
*
* Note that @nr may be almost arbitrarily large; this function is not
* restricted to acting on a single-word quantity.
*/
static inline void set_bit(int nr, volatile unsigned long *addr)
{
unsigned long mask = BIT_MASK(nr);
unsigned long *p = ((unsigned long *)addr) + BIT_WORD(nr);
unsigned long flags;
//taskENTER_CRITICAL();
_atomic_spin_lock_irqsave(p, flags);
*p |= mask;
_atomic_spin_unlock_irqrestore(p, flags);
//taskEXIT_CRITICAL();
}
/**
* clear_bit - Clears a bit in memory
* @nr: Bit to clear
* @addr: Address to start counting from
*
* clear_bit() is atomic and may not be reordered. However, it does
* not contain a memory barrier, so if it is used for locking purposes,
* you should call smp_mb__before_clear_bit() and/or smp_mb__after_clear_bit()
* in order to ensure changes are visible on other processors.
*/
static inline void clear_bit(int nr, volatile unsigned long *addr)
{
unsigned long mask = BIT_MASK(nr);
unsigned long *p = ((unsigned long *)addr) + BIT_WORD(nr);
unsigned long flags;
_atomic_spin_lock_irqsave(p, flags);
//taskENTER_CRITICAL();
*p &= ~mask;
_atomic_spin_unlock_irqrestore(p, flags);
//taskEXIT_CRITICAL();
}
/**
* change_bit - Toggle a bit in memory
* @nr: Bit to change
* @addr: Address to start counting from
*
* change_bit() is atomic and may not be reordered. It may be
* reordered on other architectures than x86.
* Note that @nr may be almost arbitrarily large; this function is not
* restricted to acting on a single-word quantity.
*/
static inline void change_bit(int nr, volatile unsigned long *addr)
{
unsigned long mask = BIT_MASK(nr);
unsigned long *p = ((unsigned long *)addr) + BIT_WORD(nr);
unsigned long flags;
//taskENTER_CRITICAL();
_atomic_spin_lock_irqsave(p, flags);
*p ^= mask;
_atomic_spin_unlock_irqrestore(p, flags);
//taskEXIT_CRITICAL();
}
/**
* test_and_set_bit - Set a bit and return its old value
* @nr: Bit to set
* @addr: Address to count from
*
* This operation is atomic and cannot be reordered.
* It may be reordered on other architectures than x86.
* It also implies a memory barrier.
*/
static inline int test_and_set_bit(int nr, volatile unsigned long *addr)
{
unsigned long mask = BIT_MASK(nr);
unsigned long *p = ((unsigned long *)addr) + BIT_WORD(nr);
unsigned long old;
//unsigned long flags;
//taskENTER_CRITICAL();
_atomic_spin_lock_irqsave(p, flags);
old = *p;
*p = old | mask;
_atomic_spin_unlock_irqrestore(p, flags);
//taskEXIT_CRITICAL();
return (old & mask) != 0;
}
/**
* test_and_clear_bit - Clear a bit and return its old value
* @nr: Bit to clear
* @addr: Address to count from
*
* This operation is atomic and cannot be reordered.
* It can be reorderdered on other architectures other than x86.
* It also implies a memory barrier.
*/
static inline int test_and_clear_bit(int nr, volatile unsigned long *addr)
{
unsigned long mask = BIT_MASK(nr);
unsigned long *p = ((unsigned long *)addr) + BIT_WORD(nr);
unsigned long old;
unsigned long flags;
//taskENTER_CRITICAL();
_atomic_spin_lock_irqsave(p, flags);
old = *p;
*p = old & ~mask;
_atomic_spin_unlock_irqrestore(p, flags);
//taskEXIT_CRITICAL();
return (old & mask) != 0;
}
/**
* test_and_change_bit - Change a bit and return its old value
* @nr: Bit to change
* @addr: Address to count from
*
* This operation is atomic and cannot be reordered.
* It also implies a memory barrier.
*/
static inline int test_and_change_bit(int nr, volatile unsigned long *addr)
{
unsigned long mask = BIT_MASK(nr);
unsigned long *p = ((unsigned long *)addr) + BIT_WORD(nr);
unsigned long old;
unsigned long flags;
_atomic_spin_lock_irqsave(p, flags);
old = *p;
*p = old ^ mask;
_atomic_spin_unlock_irqrestore(p, flags);
return (old & mask) != 0;
}
static inline int __bitmap_andnot(unsigned long *dst, const unsigned long *bitmap1,
const unsigned long *bitmap2, int bits)
{
int k;
int nr = BITS_TO_LONGS(bits);
unsigned long result = 0;
for (k = 0; k < nr; k++)
result |= (dst[k] = bitmap1[k] & ~bitmap2[k]);
return result != 0;
}
static inline int bitmap_andnot(unsigned long *dst, const unsigned long *src1,
const unsigned long *src2, int nbits)
{
// if (small_const_nbits(nbits))
// return (*dst = *src1 & ~(*src2)) != 0;
return __bitmap_andnot(dst, src1, src2, nbits);
}
static inline int atomic_inc_return(volatile atomic_t *v)
{
unsigned long flags;
int retval;
cris_atomic_save(v, flags);
retval = ++(v->counter);
cris_atomic_restore(v, flags);
return retval;
}
typedef __u16 __le16;
typedef __u16 __be16;
typedef __u32 __le32;
typedef __u32 __be32;
typedef __u64 __le64;
typedef __u64 __be64;
typedef __u16 __sum16;
typedef __u32 __wsum;
#ifndef __GFP_WAIT
#define __GFP_WAIT (0x10u)
#endif
#ifndef __GFP_HIGH
#define __GFP_HIGH (0x20u)
#endif
#ifndef __GFP_IO
#define __GFP_IO (0x40u)
#endif
#ifndef __GFP_FS
#define __GFP_FS (0x80u)
#endif
#ifndef GFP_NOIO
#define GFP_NOIO (0x10u)
#endif
#ifndef __GFP_NOWARN
#define __GFP_NOWARN (0x200u)
#endif
#ifndef GFP_KERNEL
#define GFP_KERNEL (__GFP_WAIT | __GFP_IO | __GFP_FS)
#endif
#ifndef copy_from_user
#define copy_from_user(to, from, sz) _memcpy((to), (from), (sz))
#endif
#ifndef copy_to_user
#define copy_to_user(to, from, sz) _memcpy((to), (from), (sz))
#endif
#if 0 /*comment since we are not using polling*/
/* These are specified by iBCS2 */
#ifndef POLLIN
#define POLLIN 0x0001
#endif
#ifndef POLLPRI
#define POLLPRI 0x0002
#endif
#ifndef POLLOUT
#define POLLOUT 0x0004
#endif
#ifndef POLLERR
#define POLLERR 0x0008
#endif
#ifndef POLLHUP
#define POLLHUP 0x0010
#endif
#ifndef POLLNVAL
#define POLLNVAL 0x0020
#endif
/* The rest seem to be more-or-less nonstandard. Check them! */
#ifndef POLLRDNORM
#define POLLRDNORM 0x0040
#endif
#ifndef POLLRDBAND
#define POLLRDBAND 0x0080
#endif
#ifndef POLLWRNORM
#define POLLWRNORM 0x0100
#endif
#ifndef POLLWRBAND
#define POLLWRBAND 0x0200
#endif
#ifndef POLLMSG
#define POLLMSG 0x0400
#endif
#ifndef POLLREMOVE
#define POLLREMOVE 0x1000
#endif
#ifndef POLLRDHUP
#define POLLRDHUP 0x2000
#endif
#ifndef POLLFREE
#define POLLFREE 0x4000 /* currently only for epoll */
#endif
#ifndef POLL_BUSY_LOOP
#define POLL_BUSY_LOOP 0x8000
#endif
#endif
struct __wait_queue_head {
_Sema lock;
struct list_head task_list;
};
typedef struct __wait_queue_head wait_queue_head_t;
static inline void __init_waitqueue_head(wait_queue_head_t *q)
{
//spin_lock_init(&q->lock);
RtlInitSema(&q->lock,0);
INIT_LIST_HEAD(&q->task_list);
}
#ifndef init_waitqueue_head
#define init_waitqueue_head(q) \
do { \
__init_waitqueue_head((q)); \
} while (0)
#endif
#ifndef DEFAULT_POLLMASK
#define DEFAULT_POLLMASK (POLLIN | POLLOUT | POLLRDNORM | POLLWRNORM)
#endif
#endif /*_V4L2_OSDEP_H_*/

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/*
V4L2 sub-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_SUBDEV_H
#define _V4L2_SUBDEV_H
#if 0
#include <linux/types.h>
#endif
#include "v4l2-subdev.h"
#include "media-entity.h"
#include "v4l2-async.h"
#include "v4l2-common.h"
#include "v4l2-dev.h"
#include "v4l2-fh.h"
#include "v4l2-mediabus.h"
/* generic v4l2_device notify callback notification values */
#define V4L2_SUBDEV_IR_RX_NOTIFY _IOW('v', 0, u32)
#define V4L2_SUBDEV_IR_RX_FIFO_SERVICE_REQ 0x00000001
#define V4L2_SUBDEV_IR_RX_END_OF_RX_DETECTED 0x00000002
#define V4L2_SUBDEV_IR_RX_HW_FIFO_OVERRUN 0x00000004
#define V4L2_SUBDEV_IR_RX_SW_FIFO_OVERRUN 0x00000008
#define V4L2_SUBDEV_IR_TX_NOTIFY _IOW('v', 1, u32)
#define V4L2_SUBDEV_IR_TX_FIFO_SERVICE_REQ 0x00000001
struct v4l2_device;
struct v4l2_ctrl_handler;
struct v4l2_event_subscription;
struct v4l2_fh;
struct v4l2_subdev;
struct v4l2_subdev_fh;
//struct tuner_setup;
struct v4l2_mbus_frame_desc;
/* decode_vbi_line */
struct v4l2_decode_vbi_line {
u32 is_second_field; /* Set to 0 for the first (odd) field,
set to 1 for the second (even) field. */
u8 *p; /* Pointer to the sliced VBI data from the decoder.
On exit points to the start of the payload. */
u32 line; /* Line number of the sliced VBI data (1-23) */
u32 type; /* VBI service type (V4L2_SLICED_*). 0 if no service found */
};
/* Sub-devices are devices that are connected somehow to the main bridge
device. These devices are usually audio/video muxers/encoders/decoders or
sensors and webcam controllers.
Usually these devices are controlled through an i2c bus, but other busses
may also be used.
The v4l2_subdev struct provides a way of accessing these devices in a
generic manner. Most operations that these sub-devices support fall in
a few categories: core ops, audio ops, video ops and tuner ops.
More categories can be added if needed, although this should remain a
limited set (no more than approx. 8 categories).
Each category has its own set of ops that subdev drivers can implement.
A subdev driver can leave the pointer to the category ops NULL if
it does not implement them (e.g. an audio subdev will generally not
implement the video category ops). The exception is the core category:
this must always be present.
These ops are all used internally so it is no problem to change, remove
or add ops or move ops from one to another category. Currently these
ops are based on the original ioctls, but since ops are not limited to
one argument there is room for improvement here once all i2c subdev
drivers are converted to use these ops.
*/
/* Core ops: it is highly recommended to implement at least these ops:
log_status
g_register
s_register
This provides basic debugging support.
The ioctl ops is meant for generic ioctl-like commands. Depending on
the use-case it might be better to use subdev-specific ops (currently
not yet implemented) since ops provide proper type-checking.
*/
/* Subdevice external IO pin configuration */
#define V4L2_SUBDEV_IO_PIN_DISABLE (1 << 0) /* ENABLE assumed */
#define V4L2_SUBDEV_IO_PIN_OUTPUT (1 << 1)
#define V4L2_SUBDEV_IO_PIN_INPUT (1 << 2)
#define V4L2_SUBDEV_IO_PIN_SET_VALUE (1 << 3) /* Set output value */
#define V4L2_SUBDEV_IO_PIN_ACTIVE_LOW (1 << 4) /* ACTIVE HIGH assumed */
struct v4l2_subdev_io_pin_config {
u32 flags; /* V4L2_SUBDEV_IO_PIN_* flags for this pin's config */
u8 pin; /* Chip external IO pin to configure */
u8 function; /* Internal signal pad/function to route to IO pin */
u8 value; /* Initial value for pin - e.g. GPIO output value */
u8 strength; /* Pin drive strength */
};
/*
s_io_pin_config: configure one or more chip I/O pins for chips that
multiplex different internal signal pads out to IO pins. This function
takes a pointer to an array of 'n' pin configuration entries, one for
each pin being configured. This function could be called at times
other than just subdevice initialization.
init: initialize the sensor registers to some sort of reasonable default
values. Do not use for new drivers and should be removed in existing
drivers.
load_fw: load firmware.
reset: generic reset command. The argument selects which subsystems to
reset. Passing 0 will always reset the whole chip. Do not use for new
drivers without discussing this first on the linux-media mailinglist.
There should be no reason normally to reset a device.
s_gpio: set GPIO pins. Very simple right now, might need to be extended with
a direction argument if needed.
s_power: puts subdevice in power saving mode (on == 0) or normal operation
mode (on == 1).
interrupt_service_routine: Called by the bridge chip's interrupt service
handler, when an interrupt status has be raised due to this subdev,
so that this subdev can handle the details. It may schedule work to be
performed later. It must not sleep. *Called from an IRQ context*.
*/
struct v4l2_subdev_core_ops {
int (*log_status)(struct v4l2_subdev *sd);
int (*s_io_pin_config)(struct v4l2_subdev *sd, size_t n,
struct v4l2_subdev_io_pin_config *pincfg);
int (*init)(struct v4l2_subdev *sd, u32 val);
int (*load_fw)(struct v4l2_subdev *sd);
int (*reset)(struct v4l2_subdev *sd, u32 val);
int (*s_gpio)(struct v4l2_subdev *sd, u32 val);
int (*queryctrl)(struct v4l2_subdev *sd, struct v4l2_queryctrl *qc);
int (*g_ctrl)(struct v4l2_subdev *sd, struct v4l2_control *ctrl);
int (*s_ctrl)(struct v4l2_subdev *sd, struct v4l2_control *ctrl);
int (*g_ext_ctrls)(struct v4l2_subdev *sd, struct v4l2_ext_controls *ctrls);
int (*s_ext_ctrls)(struct v4l2_subdev *sd, struct v4l2_ext_controls *ctrls);
int (*try_ext_ctrls)(struct v4l2_subdev *sd, struct v4l2_ext_controls *ctrls);
int (*querymenu)(struct v4l2_subdev *sd, struct v4l2_querymenu *qm);
int (*g_std)(struct v4l2_subdev *sd, v4l2_std_id *norm);
int (*s_std)(struct v4l2_subdev *sd, v4l2_std_id norm);
long (*ioctl)(struct v4l2_subdev *sd, unsigned int cmd, void *arg);
#ifdef CONFIG_VIDEO_ADV_DEBUG
int (*g_register)(struct v4l2_subdev *sd, struct v4l2_dbg_register *reg);
int (*s_register)(struct v4l2_subdev *sd, const struct v4l2_dbg_register *reg);
#endif
int (*s_power)(struct v4l2_subdev *sd, int on);
int (*interrupt_service_routine)(struct v4l2_subdev *sd,
u32 status, bool *handled);
int (*subscribe_event)(struct v4l2_subdev *sd, struct v4l2_fh *fh,
struct v4l2_event_subscription *sub);
int (*unsubscribe_event)(struct v4l2_subdev *sd, struct v4l2_fh *fh,
struct v4l2_event_subscription *sub);
};
/* s_radio: v4l device was opened in radio mode.
g_frequency: freq->type must be filled in. Normally done by video_ioctl2
or the bridge driver.
g_tuner:
s_tuner: vt->type must be filled in. Normally done by video_ioctl2 or the
bridge driver.
s_type_addr: sets tuner type and its I2C addr.
s_config: sets tda9887 specific stuff, like port1, port2 and qss
*/
struct v4l2_subdev_tuner_ops {
int (*s_radio)(struct v4l2_subdev *sd);
int (*s_frequency)(struct v4l2_subdev *sd, const struct v4l2_frequency *freq);
int (*g_frequency)(struct v4l2_subdev *sd, struct v4l2_frequency *freq);
int (*g_tuner)(struct v4l2_subdev *sd, struct v4l2_tuner *vt);
int (*s_tuner)(struct v4l2_subdev *sd, const struct v4l2_tuner *vt);
int (*g_modulator)(struct v4l2_subdev *sd, struct v4l2_modulator *vm);
int (*s_modulator)(struct v4l2_subdev *sd, const struct v4l2_modulator *vm);
//edit by Ian
//int (*s_type_addr)(struct v4l2_subdev *sd, struct tuner_setup *type);
//int (*s_config)(struct v4l2_subdev *sd, const struct v4l2_priv_tun_config *config);
};
/* s_clock_freq: set the frequency (in Hz) of the audio clock output.
Used to slave an audio processor to the video decoder, ensuring that
audio and video remain synchronized. Usual values for the frequency
are 48000, 44100 or 32000 Hz. If the frequency is not supported, then
-EINVAL is returned.
s_i2s_clock_freq: sets I2S speed in bps. This is used to provide a standard
way to select I2S clock used by driving digital audio streams at some
board designs. Usual values for the frequency are 1024000 and 2048000.
If the frequency is not supported, then -EINVAL is returned.
s_routing: used to define the input and/or output pins of an audio chip,
and any additional configuration data.
Never attempt to use user-level input IDs (e.g. Composite, S-Video,
Tuner) at this level. An i2c device shouldn't know about whether an
input pin is connected to a Composite connector, become on another
board or platform it might be connected to something else entirely.
The calling driver is responsible for mapping a user-level input to
the right pins on the i2c device.
*/
struct v4l2_subdev_audio_ops {
int (*s_clock_freq)(struct v4l2_subdev *sd, u32 freq);
int (*s_i2s_clock_freq)(struct v4l2_subdev *sd, u32 freq);
int (*s_routing)(struct v4l2_subdev *sd, u32 input, u32 output, u32 config);
int (*s_stream)(struct v4l2_subdev *sd, int enable);
};
/* Indicates the @length field specifies maximum data length. */
#define V4L2_MBUS_FRAME_DESC_FL_LEN_MAX (1U << 0)
/* Indicates user defined data format, i.e. non standard frame format. */
#define V4L2_MBUS_FRAME_DESC_FL_BLOB (1U << 1)
/**
* struct v4l2_mbus_frame_desc_entry - media bus frame description structure
* @flags: V4L2_MBUS_FRAME_DESC_FL_* flags
* @pixelcode: media bus pixel code, valid if FRAME_DESC_FL_BLOB is not set
* @length: number of octets per frame, valid for compressed or unspecified
* formats
*/
struct v4l2_mbus_frame_desc_entry {
u16 flags;
u32 pixelcode;
u32 length;
};
#define V4L2_FRAME_DESC_ENTRY_MAX 4
/**
* struct v4l2_mbus_frame_desc - media bus data frame description
* @entry: frame descriptors array
* @num_entries: number of entries in @entry array
*/
struct v4l2_mbus_frame_desc {
struct v4l2_mbus_frame_desc_entry entry[V4L2_FRAME_DESC_ENTRY_MAX];
unsigned short num_entries;
};
/*
s_std_output: set v4l2_std_id for video OUTPUT devices. This is ignored by
video input devices.
g_std_output: get current standard for video OUTPUT devices. This is ignored
by video input devices.
g_tvnorms_output: get v4l2_std_id with all standards supported by video
OUTPUT device. This is ignored by video input devices.
s_crystal_freq: sets the frequency of the crystal used to generate the
clocks in Hz. An extra flags field allows device specific configuration
regarding clock frequency dividers, etc. If not used, then set flags
to 0. If the frequency is not supported, then -EINVAL is returned.
g_input_status: get input status. Same as the status field in the v4l2_input
struct.
s_routing: see s_routing in audio_ops, except this version is for video
devices.
s_dv_timings(): Set custom dv timings in the sub device. This is used
when sub device is capable of setting detailed timing information
in the hardware to generate/detect the video signal.
g_dv_timings(): Get custom dv timings in the sub device.
enum_mbus_fmt: enumerate pixel formats, provided by a video data source
g_mbus_fmt: get the current pixel format, provided by a video data source
try_mbus_fmt: try to set a pixel format on a video data source
s_mbus_fmt: set a pixel format on a video data source
g_mbus_config: get supported mediabus configurations
s_mbus_config: set a certain mediabus configuration. This operation is added
for compatibility with soc-camera drivers and should not be used by new
software.
s_rx_buffer: set a host allocated memory buffer for the subdev. The subdev
can adjust @size to a lower value and must not write more data to the
buffer starting at @data than the original value of @size.
*/
struct v4l2_subdev_video_ops {
int (*s_routing)(struct v4l2_subdev *sd, u32 input, u32 output, u32 config);
int (*s_crystal_freq)(struct v4l2_subdev *sd, u32 freq, u32 flags);
int (*s_std_output)(struct v4l2_subdev *sd, v4l2_std_id std);
int (*g_std_output)(struct v4l2_subdev *sd, v4l2_std_id *std);
int (*querystd)(struct v4l2_subdev *sd, v4l2_std_id *std);
int (*g_tvnorms_output)(struct v4l2_subdev *sd, v4l2_std_id *std);
int (*g_input_status)(struct v4l2_subdev *sd, u32 *status);
int (*s_stream)(struct v4l2_subdev *sd, int enable);
int (*cropcap)(struct v4l2_subdev *sd, struct v4l2_cropcap *cc);
int (*g_crop)(struct v4l2_subdev *sd, struct v4l2_crop *crop);
int (*s_crop)(struct v4l2_subdev *sd, const struct v4l2_crop *crop);
int (*g_parm)(struct v4l2_subdev *sd, struct v4l2_streamparm *param);
int (*s_parm)(struct v4l2_subdev *sd, struct v4l2_streamparm *param);
// edit by Ian
#if 0
int (*g_frame_interval)(struct v4l2_subdev *sd,
struct v4l2_subdev_frame_interval *interval);
int (*s_frame_interval)(struct v4l2_subdev *sd,
struct v4l2_subdev_frame_interval *interval);
#endif
int (*enum_framesizes)(struct v4l2_subdev *sd, struct v4l2_frmsizeenum *fsize);
int (*enum_frameintervals)(struct v4l2_subdev *sd, struct v4l2_frmivalenum *fival);
int (*s_dv_timings)(struct v4l2_subdev *sd,
struct v4l2_dv_timings *timings);
int (*g_dv_timings)(struct v4l2_subdev *sd,
struct v4l2_dv_timings *timings);
int (*enum_dv_timings)(struct v4l2_subdev *sd,
struct v4l2_enum_dv_timings *timings);
int (*query_dv_timings)(struct v4l2_subdev *sd,
struct v4l2_dv_timings *timings);
int (*dv_timings_cap)(struct v4l2_subdev *sd,
struct v4l2_dv_timings_cap *cap);
#if 0
int (*enum_mbus_fmt)(struct v4l2_subdev *sd, unsigned int index,
enum v4l2_mbus_pixelcode *code);
int (*enum_mbus_fsizes)(struct v4l2_subdev *sd,
struct v4l2_frmsizeenum *fsize);
int (*g_mbus_fmt)(struct v4l2_subdev *sd,
struct v4l2_mbus_framefmt *fmt);
int (*try_mbus_fmt)(struct v4l2_subdev *sd,
struct v4l2_mbus_framefmt *fmt);
int (*s_mbus_fmt)(struct v4l2_subdev *sd,
struct v4l2_mbus_framefmt *fmt);
int (*g_mbus_config)(struct v4l2_subdev *sd,
struct v4l2_mbus_config *cfg);
int (*s_mbus_config)(struct v4l2_subdev *sd,
const struct v4l2_mbus_config *cfg);
#endif
int (*s_rx_buffer)(struct v4l2_subdev *sd, void *buf,
unsigned int *size);
};
/*
decode_vbi_line: video decoders that support sliced VBI need to implement
this ioctl. Field p of the v4l2_sliced_vbi_line struct is set to the
start of the VBI data that was generated by the decoder. The driver
then parses the sliced VBI data and sets the other fields in the
struct accordingly. The pointer p is updated to point to the start of
the payload which can be copied verbatim into the data field of the
v4l2_sliced_vbi_data struct. If no valid VBI data was found, then the
type field is set to 0 on return.
s_vbi_data: used to generate VBI signals on a video signal.
v4l2_sliced_vbi_data is filled with the data packets that should be
output. Note that if you set the line field to 0, then that VBI signal
is disabled. If no valid VBI data was found, then the type field is
set to 0 on return.
g_vbi_data: used to obtain the sliced VBI packet from a readback register.
Not all video decoders support this. If no data is available because
the readback register contains invalid or erroneous data -EIO is
returned. Note that you must fill in the 'id' member and the 'field'
member (to determine whether CC data from the first or second field
should be obtained).
s_raw_fmt: setup the video encoder/decoder for raw VBI.
g_sliced_fmt: retrieve the current sliced VBI settings.
s_sliced_fmt: setup the sliced VBI settings.
*/
struct v4l2_subdev_vbi_ops {
int (*decode_vbi_line)(struct v4l2_subdev *sd, struct v4l2_decode_vbi_line *vbi_line);
int (*s_vbi_data)(struct v4l2_subdev *sd, const struct v4l2_sliced_vbi_data *vbi_data);
int (*g_vbi_data)(struct v4l2_subdev *sd, struct v4l2_sliced_vbi_data *vbi_data);
int (*g_sliced_vbi_cap)(struct v4l2_subdev *sd, struct v4l2_sliced_vbi_cap *cap);
int (*s_raw_fmt)(struct v4l2_subdev *sd, struct v4l2_vbi_format *fmt);
int (*g_sliced_fmt)(struct v4l2_subdev *sd, struct v4l2_sliced_vbi_format *fmt);
int (*s_sliced_fmt)(struct v4l2_subdev *sd, struct v4l2_sliced_vbi_format *fmt);
};
/**
* struct v4l2_subdev_sensor_ops - v4l2-subdev sensor operations
* @g_skip_top_lines: number of lines at the top of the image to be skipped.
* This is needed for some sensors, which always corrupt
* several top lines of the output image, or which send their
* metadata in them.
* @g_skip_frames: number of frames to skip at stream start. This is needed for
* buggy sensors that generate faulty frames when they are
* turned on.
*/
struct v4l2_subdev_sensor_ops {
int (*g_skip_top_lines)(struct v4l2_subdev *sd, u32 *lines);
int (*g_skip_frames)(struct v4l2_subdev *sd, u32 *frames);
};
/*
[rt]x_g_parameters: Get the current operating parameters and state of the
the IR receiver or transmitter.
[rt]x_s_parameters: Set the current operating parameters and state of the
the IR receiver or transmitter. It is recommended to call
[rt]x_g_parameters first to fill out the current state, and only change
the fields that need to be changed. Upon return, the actual device
operating parameters and state will be returned. Note that hardware
limitations may prevent the actual settings from matching the requested
settings - e.g. an actual carrier setting of 35,904 Hz when 36,000 Hz
was requested. An exception is when the shutdown parameter is true.
The last used operational parameters will be returned, but the actual
state of the hardware be different to minimize power consumption and
processing when shutdown is true.
rx_read: Reads received codes or pulse width data.
The semantics are similar to a non-blocking read() call.
tx_write: Writes codes or pulse width data for transmission.
The semantics are similar to a non-blocking write() call.
*/
enum v4l2_subdev_ir_mode {
V4L2_SUBDEV_IR_MODE_PULSE_WIDTH, /* uses struct ir_raw_event records */
};
struct v4l2_subdev_ir_parameters {
/* Either Rx or Tx */
unsigned int bytes_per_data_element; /* of data in read or write call */
enum v4l2_subdev_ir_mode mode;
bool enable;
bool interrupt_enable;
bool shutdown; /* true: set hardware to low/no power, false: normal */
bool modulation; /* true: uses carrier, false: baseband */
u32 max_pulse_width; /* ns, valid only for baseband signal */
unsigned int carrier_freq; /* Hz, valid only for modulated signal*/
unsigned int duty_cycle; /* percent, valid only for modulated signal*/
bool invert_level; /* invert signal level */
/* Tx only */
bool invert_carrier_sense; /* Send 0/space as a carrier burst */
/* Rx only */
u32 noise_filter_min_width; /* ns, min time of a valid pulse */
unsigned int carrier_range_lower; /* Hz, valid only for modulated sig */
unsigned int carrier_range_upper; /* Hz, valid only for modulated sig */
u32 resolution; /* ns */
};
struct v4l2_subdev_ir_ops {
/* Receiver */
int (*rx_read)(struct v4l2_subdev *sd, u8 *buf, size_t count,
ssize_t *num);
int (*rx_g_parameters)(struct v4l2_subdev *sd,
struct v4l2_subdev_ir_parameters *params);
int (*rx_s_parameters)(struct v4l2_subdev *sd,
struct v4l2_subdev_ir_parameters *params);
/* Transmitter */
int (*tx_write)(struct v4l2_subdev *sd, u8 *buf, size_t count,
ssize_t *num);
int (*tx_g_parameters)(struct v4l2_subdev *sd,
struct v4l2_subdev_ir_parameters *params);
int (*tx_s_parameters)(struct v4l2_subdev *sd,
struct v4l2_subdev_ir_parameters *params);
};
/**
* struct v4l2_subdev_pad_ops - v4l2-subdev pad level operations
* @get_frame_desc: get the current low level media bus frame parameters.
* @get_frame_desc: set the low level media bus frame parameters, @fd array
* may be adjusted by the subdev driver to device capabilities.
*/
struct v4l2_subdev_pad_ops {
#if 0
int (*enum_mbus_code)(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh,
struct v4l2_subdev_mbus_code_enum *code);
int (*enum_frame_size)(struct v4l2_subdev *sd,
struct v4l2_subdev_fh *fh,
struct v4l2_subdev_frame_size_enum *fse);
int (*enum_frame_interval)(struct v4l2_subdev *sd,
struct v4l2_subdev_fh *fh,
struct v4l2_subdev_frame_interval_enum *fie);
int (*get_fmt)(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh,
struct v4l2_subdev_format *format);
int (*set_fmt)(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh,
struct v4l2_subdev_format *format);
int (*set_crop)(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh,
struct v4l2_subdev_crop *crop);
int (*get_crop)(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh,
struct v4l2_subdev_crop *crop);
int (*get_selection)(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh,
struct v4l2_subdev_selection *sel);
int (*set_selection)(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh,
struct v4l2_subdev_selection *sel);
int (*get_edid)(struct v4l2_subdev *sd, struct v4l2_subdev_edid *edid);
int (*set_edid)(struct v4l2_subdev *sd, struct v4l2_subdev_edid *edid);
#ifdef CONFIG_MEDIA_CONTROLLER
int (*link_validate)(struct v4l2_subdev *sd, struct media_link *link,
struct v4l2_subdev_format *source_fmt,
struct v4l2_subdev_format *sink_fmt);
#endif /* CONFIG_MEDIA_CONTROLLER */
#endif
int (*get_frame_desc)(struct v4l2_subdev *sd, unsigned int pad,
struct v4l2_mbus_frame_desc *fd);
int (*set_frame_desc)(struct v4l2_subdev *sd, unsigned int pad,
struct v4l2_mbus_frame_desc *fd);
};
struct v4l2_subdev_ops {
const struct v4l2_subdev_core_ops *core;
const struct v4l2_subdev_tuner_ops *tuner;
const struct v4l2_subdev_audio_ops *audio;
const struct v4l2_subdev_video_ops *video;
const struct v4l2_subdev_vbi_ops *vbi;
const struct v4l2_subdev_ir_ops *ir;
const struct v4l2_subdev_sensor_ops *sensor;
const struct v4l2_subdev_pad_ops *pad;
};
/*
* Internal ops. Never call this from drivers, only the v4l2 framework can call
* these ops.
*
* registered: called when this subdev is registered. When called the v4l2_dev
* field is set to the correct v4l2_device.
*
* unregistered: called when this subdev is unregistered. When called the
* v4l2_dev field is still set to the correct v4l2_device.
*
* open: called when the subdev device node is opened by an application.
*
* close: called when the subdev device node is closed.
*/
struct v4l2_subdev_internal_ops {
int (*registered)(struct v4l2_subdev *sd);
void (*unregistered)(struct v4l2_subdev *sd);
int (*open)(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh);
int (*close)(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh);
};
#define V4L2_SUBDEV_NAME_SIZE 32
/* Set this flag if this subdev is a i2c device. */
#define V4L2_SUBDEV_FL_IS_I2C (1U << 0)
/* Set this flag if this subdev is a spi device. */
#define V4L2_SUBDEV_FL_IS_SPI (1U << 1)
/* Set this flag if this subdev needs a device node. */
#define V4L2_SUBDEV_FL_HAS_DEVNODE (1U << 2)
/* Set this flag if this subdev generates events. */
#define V4L2_SUBDEV_FL_HAS_EVENTS (1U << 3)
/* Each instance of a subdev driver should create this struct, either
stand-alone or embedded in a larger struct.
*/
struct v4l2_subdev {
#if defined(CONFIG_MEDIA_CONTROLLER)
struct media_entity entity;
#endif
struct list_head list;
//struct module *owner;
u32 flags;
struct v4l2_device *v4l2_dev;
const struct v4l2_subdev_ops *ops;
/* Never call these internal ops from within a sub_dev driver! */
const struct v4l2_subdev_internal_ops *internal_ops;
/* The control handler of this subdev. May be NULL. */
struct v4l2_ctrl_handler *ctrl_handler;
/* name must be unique */
char name[V4L2_SUBDEV_NAME_SIZE];
/* can be used to group similar subdevs, value is driver-specific */
u32 grp_id;
/* pointer to private data */
void *dev_priv;
void *host_priv;
/* subdev device node */
struct video_device *devnode;
/* pointer to the physical device, if any */
//struct device *dev;
const char *dev_init_name; /* initial name of the device */
void *dev_prive_date;
/* Links this subdev to a global subdev_list or @notifier->done list. */
struct list_head async_list;
/* Pointer to respective struct v4l2_async_subdev. */
struct v4l2_async_subdev *asd;
/* Pointer to the managing notifier. */
struct v4l2_async_notifier *notifier;
};
#define media_entity_to_v4l2_subdev(ent) \
container_of(ent, struct v4l2_subdev, entity)
#define vdev_to_v4l2_subdev(vdev) \
((struct v4l2_subdev *)video_get_drvdata(vdev))
/*
* Used for storing subdev information per file handle
*/
struct v4l2_subdev_fh {
struct v4l2_fh vfh;
#if defined(CONFIG_VIDEO_V4L2_SUBDEV_API)
struct {
struct v4l2_mbus_framefmt try_fmt;
struct v4l2_rect try_crop;
struct v4l2_rect try_compose;
} *pad;
#endif
};
#define to_v4l2_subdev_fh(fh) \
container_of(fh, struct v4l2_subdev_fh, vfh)
#if defined(CONFIG_VIDEO_V4L2_SUBDEV_API)
#define __V4L2_SUBDEV_MK_GET_TRY(rtype, fun_name, field_name) \
static inline struct rtype * \
v4l2_subdev_get_try_##fun_name(struct v4l2_subdev_fh *fh, \
unsigned int pad) \
{ \
BUG_ON(unlikely(pad >= vdev_to_v4l2_subdev( \
fh->vfh.vdev)->entity.num_pads)); \
return &fh->pad[pad].field_name; \
}
__V4L2_SUBDEV_MK_GET_TRY(v4l2_mbus_framefmt, format, try_fmt)
__V4L2_SUBDEV_MK_GET_TRY(v4l2_rect, crop, try_compose)
__V4L2_SUBDEV_MK_GET_TRY(v4l2_rect, compose, try_compose)
#endif
extern const struct v4l2_file_operations v4l2_subdev_fops;
static inline void v4l2_set_subdevdata(struct v4l2_subdev *sd, void *p)
{
sd->dev_priv = p;
}
static inline void *v4l2_get_subdevdata(const struct v4l2_subdev *sd)
{
return sd->dev_priv;
}
static inline void v4l2_set_subdev_hostdata(struct v4l2_subdev *sd, void *p)
{
sd->host_priv = p;
}
static inline void *v4l2_get_subdev_hostdata(const struct v4l2_subdev *sd)
{
return sd->host_priv;
}
#ifdef CONFIG_MEDIA_CONTROLLER
int v4l2_subdev_link_validate_default(struct v4l2_subdev *sd,
struct media_link *link,
struct v4l2_subdev_format *source_fmt,
struct v4l2_subdev_format *sink_fmt);
int v4l2_subdev_link_validate(struct media_link *link);
#endif /* CONFIG_MEDIA_CONTROLLER */
void v4l2_subdev_init(struct v4l2_subdev *sd,
const struct v4l2_subdev_ops *ops);
/* Call an ops of a v4l2_subdev, doing the right checks against
NULL pointers.
Example: err = v4l2_subdev_call(sd, core, s_std, norm);
*/
#define v4l2_subdev_call(sd, o, f, args...) \
(!(sd) ? -ENODEV : (((sd)->ops->o && (sd)->ops->o->f) ? \
(sd)->ops->o->f((sd) , ##args) : -ENOIOCTLCMD))
/* Send a notification to v4l2_device. */
#define v4l2_subdev_notify(sd, notification, arg) \
((!(sd) || !(sd)->v4l2_dev || !(sd)->v4l2_dev->notify) ? -ENODEV : \
(sd)->v4l2_dev->notify((sd), (notification), (arg)))
#define v4l2_subdev_has_op(sd, o, f) \
((sd)->ops->o && (sd)->ops->o->f)
#endif

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RTL00_SDKV35a/component/common/video/v4l2/inc/v4l2_driver.h Normal file
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#ifndef V4L2_DRIVER_H
#define V4L2_DRIVER_H /*structure needed for video caputure*/
#include <platform/platform_stdlib.h>
#include "dlist.h"
#include "basic_types.h"
#endif //V4L2_DRIVER_H

24
RTL00_SDKV35a/component/common/video/v4l2/inc/v4l2_intf.h Normal file
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#ifndef _V4L2_INTF_H_
#define _V4L2_INTF_H_
#define VIDEO_NUM_DEVICES 4//should be aligned with value in v4l2-dev.c
typedef enum _streaming_state streaming_state;
enum _streaming_state {
STREAMING_OFF = 0,
STREAMING_ON = 1,
STREAMING_PAUSED = 2,
STREAMING_READY = 3,
};
long v4l_usr_ioctl(int fd, unsigned int cmd, void *arg);
int v4l_dev_open();
void v4l_dev_release();
void stop_capturing();
int start_capturing();
void uninit_v4l2_device ();
int init_v4l2_device ();
int v4l_set_param(u32 format_type, int *width, int *height, int *frame_rate, int *compression_ratio);
int v4l_getset_usb_ctrl(u8 bRequestType, u8 bRequest, u16 wValue, u16 wIndex, u16 wLength, void *data, int timeout, int set);
extern void spec_v4l2_probe();
#endif

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/*
* videobuf2-core.h - V4L2 driver helper framework
*
* Copyright (C) 2010 Samsung Electronics
*
* Author: Pawel Osciak <pawel@osciak.com>
*
* 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.
*/
#ifndef _MEDIA_VIDEOBUF2_CORE_H
#define _MEDIA_VIDEOBUF2_CORE_H
#if 0
#include <linux/mm_types.h>
#include <linux/mutex.h>
#include <linux/poll.h>
#include <linux/videodev2.h>
#include <linux/dma-buf.h>
#endif
#include "v4l2-osdep.h"
#include "videodev2.h"
typedef int _LOCK_T;
struct vb2_alloc_ctx;
struct vb2_fileio_data;
/**
* struct vb2_mem_ops - memory handling/memory allocator operations
* @alloc: allocate video memory and, optionally, allocator private data,
* return NULL on failure or a pointer to allocator private,
* per-buffer data on success; the returned private structure
* will then be passed as buf_priv argument to other ops in this
* structure. Additional gfp_flags to use when allocating the
* are also passed to this operation. These flags are from the
* gfp_flags field of vb2_queue.
* @put: inform the allocator that the buffer will no longer be used;
* usually will result in the allocator freeing the buffer (if
* no other users of this buffer are present); the buf_priv
* argument is the allocator private per-buffer structure
* previously returned from the alloc callback
* @get_userptr: acquire userspace memory for a hardware operation; used for
* USERPTR memory types; vaddr is the address passed to the
* videobuf layer when queuing a video buffer of USERPTR type;
* should return an allocator private per-buffer structure
* associated with the buffer on success, NULL on failure;
* the returned private structure will then be passed as buf_priv
* argument to other ops in this structure
* @put_userptr: inform the allocator that a USERPTR buffer will no longer
* be used
* @attach_dmabuf: attach a shared struct dma_buf for a hardware operation;
* used for DMABUF memory types; alloc_ctx is the alloc context
* dbuf is the shared dma_buf; returns NULL on failure;
* allocator private per-buffer structure on success;
* this needs to be used for further accesses to the buffer
* @detach_dmabuf: inform the exporter of the buffer that the current DMABUF
* buffer is no longer used; the buf_priv argument is the
* allocator private per-buffer structure previously returned
* from the attach_dmabuf callback
* @map_dmabuf: request for access to the dmabuf from allocator; the allocator
* of dmabuf is informed that this driver is going to use the
* dmabuf
* @unmap_dmabuf: releases access control to the dmabuf - allocator is notified
* that this driver is done using the dmabuf for now
* @prepare: called every time the buffer is passed from userspace to the
* driver, useful for cache synchronisation, optional
* @finish: called every time the buffer is passed back from the driver
* to the userspace, also optional
* @vaddr: return a kernel virtual address to a given memory buffer
* associated with the passed private structure or NULL if no
* such mapping exists
* @cookie: return allocator specific cookie for a given memory buffer
* associated with the passed private structure or NULL if not
* available
* @num_users: return the current number of users of a memory buffer;
* return 1 if the videobuf layer (or actually the driver using
* it) is the only user
* @mmap: setup a userspace mapping for a given memory buffer under
* the provided virtual memory region
*
* Required ops for USERPTR types: get_userptr, put_userptr.
* Required ops for MMAP types: alloc, put, num_users, mmap.
* Required ops for read/write access types: alloc, put, num_users, vaddr
* Required ops for DMABUF types: attach_dmabuf, detach_dmabuf, map_dmabuf,
* unmap_dmabuf.
*/
struct vb2_mem_ops {
void *(*alloc)(void *alloc_ctx, unsigned long size, gfp_t gfp_flags);
void (*put)(void *buf_priv);
struct dma_buf *(*get_dmabuf)(void *buf_priv);
void *(*get_userptr)(void *alloc_ctx, unsigned long vaddr,
unsigned long size, int write);
void (*put_userptr)(void *buf_priv);
void (*prepare)(void *buf_priv);
void (*finish)(void *buf_priv);
void *(*attach_dmabuf)(void *alloc_ctx, struct dma_buf *dbuf,
unsigned long size, int write);
void (*detach_dmabuf)(void *buf_priv);
int (*map_dmabuf)(void *buf_priv);
void (*unmap_dmabuf)(void *buf_priv);
void *(*vaddr)(void *buf_priv);
void *(*cookie)(void *buf_priv);
unsigned int (*num_users)(void *buf_priv);
int (*mmap)(void *buf_priv);
};
struct vb2_plane {
void *mem_priv;
struct dma_buf *dbuf;
unsigned int dbuf_mapped;
};
/**
* enum vb2_io_modes - queue access methods
* @VB2_MMAP: driver supports MMAP with streaming API
* @VB2_USERPTR: driver supports USERPTR with streaming API
* @VB2_READ: driver supports read() style access
* @VB2_WRITE: driver supports write() style access
* @VB2_DMABUF: driver supports DMABUF with streaming API
*/
enum vb2_io_modes {
VB2_MMAP = (1 << 0),
VB2_USERPTR = (1 << 1),
VB2_READ = (1 << 2),
VB2_WRITE = (1 << 3),
VB2_DMABUF = (1 << 4),
};
/**
* enum vb2_fileio_flags - flags for selecting a mode of the file io emulator,
* by default the 'streaming' style is used by the file io emulator
* @VB2_FILEIO_READ_ONCE: report EOF after reading the first buffer
* @VB2_FILEIO_WRITE_IMMEDIATELY: queue buffer after each write() call
*/
enum vb2_fileio_flags {
VB2_FILEIO_READ_ONCE = (1 << 0),
VB2_FILEIO_WRITE_IMMEDIATELY = (1 << 1),
};
/**
* enum vb2_buffer_state - current video buffer state
* @VB2_BUF_STATE_DEQUEUED: buffer under userspace control
* @VB2_BUF_STATE_PREPARED: buffer prepared in videobuf and by the driver
* @VB2_BUF_STATE_QUEUED: buffer queued in videobuf, but not in driver
* @VB2_BUF_STATE_ACTIVE: buffer queued in driver and possibly used
* in a hardware operation
* @VB2_BUF_STATE_DONE: buffer returned from driver to videobuf, but
* not yet dequeued to userspace
* @VB2_BUF_STATE_ERROR: same as above, but the operation on the buffer
* has ended with an error, which will be reported
* to the userspace when it is dequeued
*/
enum vb2_buffer_state {
VB2_BUF_STATE_DEQUEUED,
VB2_BUF_STATE_PREPARED,
VB2_BUF_STATE_QUEUED,
VB2_BUF_STATE_ACTIVE,
VB2_BUF_STATE_DONE,
VB2_BUF_STATE_ERROR,
};
struct vb2_queue;
/**
* struct vb2_buffer - represents a video buffer
* @v4l2_buf: struct v4l2_buffer associated with this buffer; can
* be read by the driver and relevant entries can be
* changed by the driver in case of CAPTURE types
* (such as timestamp)
* @v4l2_planes: struct v4l2_planes associated with this buffer; can
* be read by the driver and relevant entries can be
* changed by the driver in case of CAPTURE types
* (such as bytesused); NOTE that even for single-planar
* types, the v4l2_planes[0] struct should be used
* instead of v4l2_buf for filling bytesused - drivers
* should use the vb2_set_plane_payload() function for that
* @vb2_queue: the queue to which this driver belongs
* @num_planes: number of planes in the buffer
* on an internal driver queue
* @state: current buffer state; do not change
* @queued_entry: entry on the queued buffers list, which holds all
* buffers queued from userspace
* @done_entry: entry on the list that stores all buffers ready to
* be dequeued to userspace
* @planes: private per-plane information; do not change
*/
struct vb2_buffer {
struct v4l2_buffer v4l2_buf;
struct v4l2_plane v4l2_planes[VIDEO_MAX_PLANES];
struct vb2_queue *vb2_queue;
unsigned int num_planes;
/* Private: internal use only */
enum vb2_buffer_state state;
struct list_head queued_entry;
struct list_head done_entry;
struct vb2_plane planes[VIDEO_MAX_PLANES];
};
/**
* struct vb2_ops - driver-specific callbacks
*
* @queue_setup: called from VIDIOC_REQBUFS and VIDIOC_CREATE_BUFS
* handlers before memory allocation, or, if
* *num_planes != 0, after the allocation to verify a
* smaller number of buffers. Driver should return
* the required number of buffers in *num_buffers, the
* required number of planes per buffer in *num_planes; the
* size of each plane should be set in the sizes[] array
* and optional per-plane allocator specific context in the
* alloc_ctxs[] array. When called from VIDIOC_REQBUFS,
* fmt == NULL, the driver has to use the currently
* configured format and *num_buffers is the total number
* of buffers, that are being allocated. When called from
* VIDIOC_CREATE_BUFS, fmt != NULL and it describes the
* target frame format (if the format isn't valid the
* callback must return -EINVAL). In this case *num_buffers
* are being allocated additionally to q->num_buffers.
* @wait_prepare: release any locks taken while calling vb2 functions;
* it is called before an ioctl needs to wait for a new
* buffer to arrive; required to avoid a deadlock in
* blocking access type
* @wait_finish: reacquire all locks released in the previous callback;
* required to continue operation after sleeping while
* waiting for a new buffer to arrive
* @buf_init: called once after allocating a buffer (in MMAP case)
* or after acquiring a new USERPTR buffer; drivers may
* perform additional buffer-related initialization;
* initialization failure (return != 0) will prevent
* queue setup from completing successfully; optional
* @buf_prepare: called every time the buffer is queued from userspace
* and from the VIDIOC_PREPARE_BUF ioctl; drivers may
* perform any initialization required before each hardware
* operation in this callback; drivers that support
* VIDIOC_CREATE_BUFS must also validate the buffer size;
* if an error is returned, the buffer will not be queued
* in driver; optional
* @buf_finish: called before every dequeue of the buffer back to
* userspace; drivers may perform any operations required
* before userspace accesses the buffer; optional
* @buf_cleanup: called once before the buffer is freed; drivers may
* perform any additional cleanup; optional
* @start_streaming: called once to enter 'streaming' state; the driver may
* receive buffers with @buf_queue callback before
* @start_streaming is called; the driver gets the number
* of already queued buffers in count parameter; driver
* can return an error if hardware fails or not enough
* buffers has been queued, in such case all buffers that
* have been already given by the @buf_queue callback are
* invalidated.
* @stop_streaming: called when 'streaming' state must be disabled; driver
* should stop any DMA transactions or wait until they
* finish and give back all buffers it got from buf_queue()
* callback; may use vb2_wait_for_all_buffers() function
* @buf_queue: passes buffer vb to the driver; driver may start
* hardware operation on this buffer; driver should give
* the buffer back by calling vb2_buffer_done() function;
* it is allways called after calling STREAMON ioctl;
* might be called before start_streaming callback if user
* pre-queued buffers before calling STREAMON
*/
struct vb2_ops {
int (*queue_setup)(struct vb2_queue *q, const struct v4l2_format *fmt,
unsigned int *num_buffers, unsigned int *num_planes,
unsigned int sizes[], void *alloc_ctxs[]);
void (*wait_prepare)(struct vb2_queue *q);
void (*wait_finish)(struct vb2_queue *q);
int (*buf_init)(struct vb2_buffer *vb);
//int (*buf_prepare)(struct vb2_buffer *vb);
int (*buf_prepare)(struct vb2_buffer *vb, unsigned int index);
int (*buf_finish)(struct vb2_buffer *vb);
void (*buf_cleanup)(struct vb2_buffer *vb);
int (*start_streaming)(struct vb2_queue *q, unsigned int count);
int (*stop_streaming)(struct vb2_queue *q);
void (*buf_queue)(struct vb2_buffer *vb);
};
struct v4l2_fh;
/**
* struct vb2_queue - a videobuf queue
*
* @type: queue type (see V4L2_BUF_TYPE_* in linux/videodev2.h
* @io_modes: supported io methods (see vb2_io_modes enum)
* @io_flags: additional io flags (see vb2_fileio_flags enum)
* @lock: pointer to a mutex that protects the vb2_queue struct. The
* driver can set this to a mutex to let the v4l2 core serialize
* the queuing ioctls. If the driver wants to handle locking
* itself, then this should be set to NULL. This lock is not used
* by the videobuf2 core API.
* @owner: The filehandle that 'owns' the buffers, i.e. the filehandle
* that called reqbufs, create_buffers or started fileio.
* This field is not used by the videobuf2 core API, but it allows
* drivers to easily associate an owner filehandle with the queue.
* @ops: driver-specific callbacks
* @mem_ops: memory allocator specific callbacks
* @drv_priv: driver private data
* @buf_struct_size: size of the driver-specific buffer structure;
* "0" indicates the driver doesn't want to use a custom buffer
* structure type, so sizeof(struct vb2_buffer) will is used
* @gfp_flags: additional gfp flags used when allocating the buffers.
* Typically this is 0, but it may be e.g. GFP_DMA or __GFP_DMA32
* to force the buffer allocation to a specific memory zone.
*
* @memory: current memory type used
* @bufs: videobuf buffer structures
* @num_buffers: number of allocated/used buffers
* @queued_list: list of buffers currently queued from userspace
* @queued_count: number of buffers owned by the driver
* @done_list: list of buffers ready to be dequeued to userspace
* @done_lock: lock to protect done_list list
* @done_wq: waitqueue for processes waiting for buffers ready to be dequeued
* @alloc_ctx: memory type/allocator-specific contexts for each plane
* @streaming: current streaming state
* @fileio: file io emulator internal data, used only if emulator is active
*/
struct vb2_queue {
enum v4l2_buf_type type;
unsigned int io_modes;
unsigned int io_flags;
//struct mutex *lock;
_Mutex *lock;
struct v4l2_fh *owner;
const struct vb2_ops *ops;
const struct vb2_mem_ops *mem_ops;
void *drv_priv;
unsigned int buf_struct_size;
u32 timestamp_type;
gfp_t gfp_flags;
/* private: internal use only */
enum v4l2_memory memory;
struct vb2_buffer *bufs[VIDEO_MAX_FRAME];
unsigned int num_buffers;
struct list_head queued_list;
atomic_t queued_count;
struct list_head done_list;
//spinlock_t done_lock;
//_LOCK_T done_lock;
_Mutex done_lock;
//wait_queue_head_t done_wq;
_Sema done_wq; //counting semaphore
void *alloc_ctx[VIDEO_MAX_PLANES];
unsigned int plane_sizes[VIDEO_MAX_PLANES];
//unsigned int streaming:1;
unsigned int streaming;
//unsigned int start_streaming_called;//added by Ian
struct vb2_fileio_data *fileio;
};
void *vb2_plane_vaddr(struct vb2_buffer *vb, unsigned int plane_no);
void *vb2_plane_cookie(struct vb2_buffer *vb, unsigned int plane_no);
void vb2_buffer_done(struct vb2_buffer *vb, enum vb2_buffer_state state);
int vb2_wait_for_all_buffers(struct vb2_queue *q);
int vb2_querybuf(struct vb2_queue *q, struct v4l2_buffer *b);
int vb2_reqbufs(struct vb2_queue *q, struct v4l2_requestbuffers *req);
int vb2_create_bufs(struct vb2_queue *q, struct v4l2_create_buffers *create);
int vb2_prepare_buf(struct vb2_queue *q, struct v4l2_buffer *b);
int vb2_queue_init(struct vb2_queue *q);
void vb2_queue_release(struct vb2_queue *q);
int vb2_qbuf(struct vb2_queue *q, struct v4l2_buffer *b);
int vb2_expbuf(struct vb2_queue *q, struct v4l2_exportbuffer *eb);
int vb2_dqbuf(struct vb2_queue *q, struct v4l2_buffer *b, bool nonblocking);
int vb2_streamon(struct vb2_queue *q, enum v4l2_buf_type type);
int vb2_streamoff(struct vb2_queue *q, enum v4l2_buf_type type);
int vb2_mmap(struct vb2_queue *q);
#ifndef CONFIG_MMU
unsigned long vb2_get_unmapped_area(struct vb2_queue *q,
unsigned long addr,
unsigned long len,
unsigned long pgoff,
unsigned long flags);
#endif
#if 0
unsigned int vb2_poll(struct vb2_queue *q, struct file *file, poll_table *wait);
size_t vb2_read(struct vb2_queue *q, char __user *data, size_t count,
loff_t *ppos, int nonblock);
size_t vb2_write(struct vb2_queue *q, char __user *data, size_t count,
loff_t *ppos, int nonblock);
#endif
/**
* vb2_is_streaming() - return streaming status of the queue
* @q: videobuf queue
*/
static inline bool vb2_is_streaming(struct vb2_queue *q)
{
return q->streaming;
}
/**
* vb2_is_busy() - return busy status of the queue
* @q: videobuf queue
*
* This function checks if queue has any buffers allocated.
*/
static inline bool vb2_is_busy(struct vb2_queue *q)
{
return (q->num_buffers > 0);
}
/**
* vb2_get_drv_priv() - return driver private data associated with the queue
* @q: videobuf queue
*/
static inline void *vb2_get_drv_priv(struct vb2_queue *q)
{
return q->drv_priv;
}
/**
* vb2_set_plane_payload() - set bytesused for the plane plane_no
* @vb: buffer for which plane payload should be set
* @plane_no: plane number for which payload should be set
* @size: payload in bytes
*/
static inline void vb2_set_plane_payload(struct vb2_buffer *vb,
unsigned int plane_no, unsigned long size)
{
if (plane_no < vb->num_planes)
vb->v4l2_planes[plane_no].bytesused = size;
}
/**
* vb2_get_plane_payload() - get bytesused for the plane plane_no
* @vb: buffer for which plane payload should be set
* @plane_no: plane number for which payload should be set
* @size: payload in bytes
*/
static inline unsigned long vb2_get_plane_payload(struct vb2_buffer *vb,
unsigned int plane_no)
{
if (plane_no < vb->num_planes)
return vb->v4l2_planes[plane_no].bytesused;
return 0;
}
/**
* vb2_plane_size() - return plane size in bytes
* @vb: buffer for which plane size should be returned
* @plane_no: plane number for which size should be returned
*/
static inline unsigned long
vb2_plane_size(struct vb2_buffer *vb, unsigned int plane_no)
{
if (plane_no < vb->num_planes)
return vb->v4l2_planes[plane_no].length;
return 0;
}
/*
* The following functions are not part of the vb2 core API, but are simple
* helper functions that you can use in your struct v4l2_file_operations,
* struct v4l2_ioctl_ops and struct vb2_ops. They will serialize if vb2_queue->lock
* or video_device->lock is set, and they will set and test vb2_queue->owner
* to check if the calling filehandle is permitted to do the queuing operation.
*/
/* struct v4l2_ioctl_ops helpers */
int vb2_ioctl_reqbufs(void *priv, struct v4l2_requestbuffers *p);
int vb2_ioctl_create_bufs(void *priv, struct v4l2_create_buffers *p);
int vb2_ioctl_prepare_buf(void *priv, struct v4l2_buffer *p);
int vb2_ioctl_querybuf(void *priv, struct v4l2_buffer *p);
int vb2_ioctl_qbuf(void *priv, struct v4l2_buffer *p);
int vb2_ioctl_dqbuf(void *priv, struct v4l2_buffer *p);
int vb2_ioctl_streamon(void *priv, enum v4l2_buf_type i);
int vb2_ioctl_streamoff(void *priv, enum v4l2_buf_type i);
int vb2_ioctl_expbuf(void *priv, struct v4l2_exportbuffer *p);
/* struct v4l2_file_operations helpers */
int vb2_fop_mmap();
int vb2_fop_release();
#if 0
ssize_t vb2_fop_write(struct file *file, char __user *buf,
size_t count, loff_t *ppos);
ssize_t vb2_fop_read(struct file *file, char __user *buf,
size_t count, loff_t *ppos);
unsigned int vb2_fop_poll(struct file *file, poll_table *wait);
#endif
#ifndef CONFIG_MMU
unsigned long vb2_fop_get_unmapped_area(unsigned long addr,
unsigned long len, unsigned long pgoff, unsigned long flags);
#endif
/* struct vb2_ops helpers, only use if vq->lock is non-NULL. */
void vb2_ops_wait_prepare(struct vb2_queue *vq);
void vb2_ops_wait_finish(struct vb2_queue *vq);
#endif /* _MEDIA_VIDEOBUF2_CORE_H */

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/*
* videobuf2-memops.h - generic memory handling routines for videobuf2
*
* Copyright (C) 2010 Samsung Electronics
*
* Author: Pawel Osciak <pawel@osciak.com>
* Marek Szyprowski <m.szyprowski@samsung.com>
*
* 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.
*/
#ifndef _MEDIA_VIDEOBUF2_MEMOPS_H
#define _MEDIA_VIDEOBUF2_MEMOPS_H
#include "videobuf2-core.h"
/**
* vb2_vmarea_handler - common vma refcount tracking handler
* @refcount: pointer to refcount entry in the buffer
* @put: callback to function that decreases buffer refcount
* @arg: argument for @put callback
*/
struct vb2_vmarea_handler {
atomic_t *refcount;
void (*put)(void *arg);
void *arg;
};
extern const struct vm_operations_struct vb2_common_vm_ops;
int vb2_get_contig_userptr(unsigned long vaddr, unsigned long size,
struct vm_area_struct **res_vma, dma_addr_t *res_pa);
struct vm_area_struct *vb2_get_vma(struct vm_area_struct *vma);
void vb2_put_vma(struct vm_area_struct *vma);
#endif

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/*
* videobuf2-vmalloc.h - vmalloc memory allocator for videobuf2
*
* Copyright (C) 2010 Samsung Electronics
*
* Author: Pawel Osciak <pawel@osciak.com>
*
* 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.
*/
#ifndef _MEDIA_VIDEOBUF2_VMALLOC_H
#define _MEDIA_VIDEOBUF2_VMALLOC_H
#include "videobuf2-core.h"
extern const struct vb2_mem_ops vb2_vmalloc_memops;
#endif

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/*
* Video for Linux Two header file
*
* Copyright (C) 1999-2012 the contributors
*
* 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.
*
* Alternatively you can redistribute this file under the terms of the
* BSD license as stated below:
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* 3. The names of its contributors may not be used to endorse or promote
* products derived from this software without specific prior written
* permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
* TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* Header file for v4l or V4L2 drivers and applications
* with public API.
* All kernel-specific stuff were moved to media/v4l2-dev.h, so
* no #if __KERNEL tests are allowed here
*
* See http://linuxtv.org for more info
*
* Author: Bill Dirks <bill@thedirks.org>
* Justin Schoeman
* Hans Verkuil <hverkuil@xs4all.nl>
* et al.
*/
#ifndef __LINUX_VIDEODEV2_H
#define __LINUX_VIDEODEV2_H
//#include <linux/time.h> /* need struct timeval */
#include "uapi_videodev2.h"
#endif /* __LINUX_VIDEODEV2_H */