/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */

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/*

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* Multimedia device API

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*

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* Copyright (C) 2010 Nokia Corporation

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*

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* Contacts: Laurent Pinchart <laurent.pinchart@ideasonboard.com>

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* Sakari Ailus <sakari.ailus@iki.fi>

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*

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* This program is free software; you can redistribute it and/or modify

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* it under the terms of the GNU General Public License version 2 as

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* published by the Free Software Foundation.

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*

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* This program is distributed in the hope that it will be useful,

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* but WITHOUT ANY WARRANTY; without even the implied warranty of

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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the

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* GNU General Public License for more details.

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*/

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#ifndef __LINUX_MEDIA_H

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#define __LINUX_MEDIA_H

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#include <stdint.h>

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#include <linux/ioctl.h>

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#include <linux/types.h>

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#include <linux/version.h>

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struct media_device_info {

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char driver[16];

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char model[32];

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char serial[40];

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char bus_info[32];

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__u32 media_version;

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__u32 hw_revision;

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__u32 driver_version;

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__u32 reserved[31];

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};

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/*

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* Base number ranges for entity functions

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*

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* NOTE: Userspace should not rely on these ranges to identify a group

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* of function types, as newer functions can be added with any name within

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* the full u32 range.

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*

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* Some older functions use the MEDIA_ENT_F_OLD_*_BASE range. Do not

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* change this, this is for backwards compatibility. When adding new

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* functions always use MEDIA_ENT_F_BASE.

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*/

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#define MEDIA_ENT_F_BASE 0x00000000

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#define MEDIA_ENT_F_OLD_BASE 0x00010000

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#define MEDIA_ENT_F_OLD_SUBDEV_BASE 0x00020000

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/*

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* Initial value to be used when a new entity is created

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* Drivers should change it to something useful.

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*/

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#define MEDIA_ENT_F_UNKNOWN MEDIA_ENT_F_BASE

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/*

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* Subdevs are initialized with MEDIA_ENT_F_V4L2_SUBDEV_UNKNOWN in order

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* to preserve backward compatibility. Drivers must change to the proper

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* subdev type before registering the entity.

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*/

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#define MEDIA_ENT_F_V4L2_SUBDEV_UNKNOWN MEDIA_ENT_F_OLD_SUBDEV_BASE

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/*

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* DVB entity functions

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*/

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#define MEDIA_ENT_F_DTV_DEMOD (MEDIA_ENT_F_BASE + 0x00001)

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#define MEDIA_ENT_F_TS_DEMUX (MEDIA_ENT_F_BASE + 0x00002)

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#define MEDIA_ENT_F_DTV_CA (MEDIA_ENT_F_BASE + 0x00003)

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#define MEDIA_ENT_F_DTV_NET_DECAP (MEDIA_ENT_F_BASE + 0x00004)

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/*

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* I/O entity functions

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*/

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#define MEDIA_ENT_F_IO_V4L (MEDIA_ENT_F_OLD_BASE + 1)

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#define MEDIA_ENT_F_IO_DTV (MEDIA_ENT_F_BASE + 0x01001)

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#define MEDIA_ENT_F_IO_VBI (MEDIA_ENT_F_BASE + 0x01002)

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#define MEDIA_ENT_F_IO_SWRADIO (MEDIA_ENT_F_BASE + 0x01003)

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/*

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* Sensor functions

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*/

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#define MEDIA_ENT_F_CAM_SENSOR (MEDIA_ENT_F_OLD_SUBDEV_BASE + 1)

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#define MEDIA_ENT_F_FLASH (MEDIA_ENT_F_OLD_SUBDEV_BASE + 2)

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#define MEDIA_ENT_F_LENS (MEDIA_ENT_F_OLD_SUBDEV_BASE + 3)

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/*

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* Video decoder functions

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*/

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#define MEDIA_ENT_F_ATV_DECODER (MEDIA_ENT_F_OLD_SUBDEV_BASE + 4)

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#define MEDIA_ENT_F_DTV_DECODER (MEDIA_ENT_F_BASE + 0x6001)

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/*

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* Digital TV, analog TV, radio and/or software defined radio tuner functions.

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*

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* It is a responsibility of the master/bridge drivers to add connectors

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* and links for MEDIA_ENT_F_TUNER. Please notice that some old tuners

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* may require the usage of separate I2C chips to decode analog TV signals,

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* when the master/bridge chipset doesn't have its own TV standard decoder.

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* On such cases, the IF-PLL staging is mapped via one or two entities:

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* MEDIA_ENT_F_IF_VID_DECODER and/or MEDIA_ENT_F_IF_AUD_DECODER.

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*/

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#define MEDIA_ENT_F_TUNER (MEDIA_ENT_F_OLD_SUBDEV_BASE + 5)

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/*

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* Analog TV IF-PLL decoder functions

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*

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* It is a responsibility of the master/bridge drivers to create links

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* for MEDIA_ENT_F_IF_VID_DECODER and MEDIA_ENT_F_IF_AUD_DECODER.

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*/

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#define MEDIA_ENT_F_IF_VID_DECODER (MEDIA_ENT_F_BASE + 0x02001)

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#define MEDIA_ENT_F_IF_AUD_DECODER (MEDIA_ENT_F_BASE + 0x02002)

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/*

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* Audio entity functions

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*/

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#define MEDIA_ENT_F_AUDIO_CAPTURE (MEDIA_ENT_F_BASE + 0x03001)

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#define MEDIA_ENT_F_AUDIO_PLAYBACK (MEDIA_ENT_F_BASE + 0x03002)

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#define MEDIA_ENT_F_AUDIO_MIXER (MEDIA_ENT_F_BASE + 0x03003)

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/*

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* Processing entity functions

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*/

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#define MEDIA_ENT_F_PROC_VIDEO_COMPOSER (MEDIA_ENT_F_BASE + 0x4001)

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#define MEDIA_ENT_F_PROC_VIDEO_PIXEL_FORMATTER (MEDIA_ENT_F_BASE + 0x4002)

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#define MEDIA_ENT_F_PROC_VIDEO_PIXEL_ENC_CONV (MEDIA_ENT_F_BASE + 0x4003)

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#define MEDIA_ENT_F_PROC_VIDEO_LUT (MEDIA_ENT_F_BASE + 0x4004)

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#define MEDIA_ENT_F_PROC_VIDEO_SCALER (MEDIA_ENT_F_BASE + 0x4005)

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#define MEDIA_ENT_F_PROC_VIDEO_STATISTICS (MEDIA_ENT_F_BASE + 0x4006)

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/*

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* Switch and bridge entity functions

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*/

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#define MEDIA_ENT_F_VID_MUX (MEDIA_ENT_F_BASE + 0x5001)

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#define MEDIA_ENT_F_VID_IF_BRIDGE (MEDIA_ENT_F_BASE + 0x5002)

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/* Entity flags */

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#define MEDIA_ENT_FL_DEFAULT (1 << 0)

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#define MEDIA_ENT_FL_CONNECTOR (1 << 1)

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/* OR with the entity id value to find the next entity */

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#define MEDIA_ENT_ID_FLAG_NEXT (1 << 31)

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struct media_entity_desc {

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__u32 id;

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char name[32];

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__u32 type;

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__u32 revision;

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__u32 flags;

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__u32 group_id;

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__u16 pads;

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__u16 links;

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__u32 reserved[4];

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union {

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/* Node specifications */

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struct {

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__u32 major;

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__u32 minor;

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} dev;

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/*

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* TODO: this shouldn't have been added without

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* actual drivers that use this. When the first real driver

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* appears that sets this information, special attention

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* should be given whether this information is 1) enough, and

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* 2) can deal with udev rules that rename devices. The struct

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* dev would not be sufficient for this since that does not

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* contain the subdevice information. In addition, struct dev

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* can only refer to a single device, and not to multiple (e.g.

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* pcm and mixer devices).

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*/

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struct {

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__u32 card;

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__u32 device;

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__u32 subdevice;

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} alsa;

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/*

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* DEPRECATED: previous node specifications. Kept just to

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* avoid breaking compilation. Use media_entity_desc.dev

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* instead.

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*/

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struct {

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__u32 major;

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__u32 minor;

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} v4l;

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struct {

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__u32 major;

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__u32 minor;

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} fb;

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int dvb;

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/* Sub-device specifications */

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/* Nothing needed yet */

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__u8 raw[184];

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};

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};

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#define MEDIA_PAD_FL_SINK (1 << 0)

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#define MEDIA_PAD_FL_SOURCE (1 << 1)

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#define MEDIA_PAD_FL_MUST_CONNECT (1 << 2)

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struct media_pad_desc {

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__u32 entity; /* entity ID */

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__u16 index; /* pad index */

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__u32 flags; /* pad flags */

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__u32 reserved[2];

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};

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#define MEDIA_LNK_FL_ENABLED (1 << 0)

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#define MEDIA_LNK_FL_IMMUTABLE (1 << 1)

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#define MEDIA_LNK_FL_DYNAMIC (1 << 2)

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#define MEDIA_LNK_FL_LINK_TYPE (0xf << 28)

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# define MEDIA_LNK_FL_DATA_LINK (0 << 28)

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# define MEDIA_LNK_FL_INTERFACE_LINK (1 << 28)

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struct media_link_desc {

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struct media_pad_desc source;

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struct media_pad_desc sink;

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__u32 flags;

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__u32 reserved[2];

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};

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struct media_links_enum {

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__u32 entity;

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/* Should have enough room for pads elements */

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struct media_pad_desc *pads;

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/* Should have enough room for links elements */

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struct media_link_desc *links;

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__u32 reserved[4];

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};

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/* Interface type ranges */

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#define MEDIA_INTF_T_DVB_BASE 0x00000100

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#define MEDIA_INTF_T_V4L_BASE 0x00000200

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/* Interface types */

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#define MEDIA_INTF_T_DVB_FE (MEDIA_INTF_T_DVB_BASE)

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#define MEDIA_INTF_T_DVB_DEMUX (MEDIA_INTF_T_DVB_BASE + 1)

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#define MEDIA_INTF_T_DVB_DVR (MEDIA_INTF_T_DVB_BASE + 2)

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#define MEDIA_INTF_T_DVB_CA (MEDIA_INTF_T_DVB_BASE + 3)

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#define MEDIA_INTF_T_DVB_NET (MEDIA_INTF_T_DVB_BASE + 4)

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#define MEDIA_INTF_T_V4L_VIDEO (MEDIA_INTF_T_V4L_BASE)

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#define MEDIA_INTF_T_V4L_VBI (MEDIA_INTF_T_V4L_BASE + 1)

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#define MEDIA_INTF_T_V4L_RADIO (MEDIA_INTF_T_V4L_BASE + 2)

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#define MEDIA_INTF_T_V4L_SUBDEV (MEDIA_INTF_T_V4L_BASE + 3)

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#define MEDIA_INTF_T_V4L_SWRADIO (MEDIA_INTF_T_V4L_BASE + 4)

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#define MEDIA_INTF_T_V4L_TOUCH (MEDIA_INTF_T_V4L_BASE + 5)

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/*

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* MC next gen API definitions

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*/

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struct media_v2_entity {

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__u32 id;

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char name[64];

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__u32 function; /* Main function of the entity */

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__u32 reserved[6];

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} __attribute__ ((packed));

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/* Should match the specific fields at media_intf_devnode */

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struct media_v2_intf_devnode {

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__u32 major;

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__u32 minor;

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} __attribute__ ((packed));

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struct media_v2_interface {

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__u32 id;

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__u32 intf_type;

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__u32 flags;

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__u32 reserved[9];

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union {

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struct media_v2_intf_devnode devnode;

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__u32 raw[16];

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};

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} __attribute__ ((packed));

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struct media_v2_pad {

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__u32 id;

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__u32 entity_id;

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__u32 flags;

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__u32 reserved[5];

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} __attribute__ ((packed));

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struct media_v2_link {

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__u32 id;

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__u32 source_id;

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__u32 sink_id;

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__u32 flags;

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__u32 reserved[6];

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} __attribute__ ((packed));

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struct media_v2_topology {

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__u64 topology_version;

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__u32 num_entities;

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__u32 reserved1;

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__u64 ptr_entities;

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__u32 num_interfaces;

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__u32 reserved2;

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__u64 ptr_interfaces;

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__u32 num_pads;

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__u32 reserved3;

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__u64 ptr_pads;

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__u32 num_links;

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__u32 reserved4;

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__u64 ptr_links;

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} __attribute__ ((packed));

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/* ioctls */

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#define MEDIA_IOC_DEVICE_INFO _IOWR('|', 0x00, struct media_device_info)

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#define MEDIA_IOC_ENUM_ENTITIES _IOWR('|', 0x01, struct media_entity_desc)

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#define MEDIA_IOC_ENUM_LINKS _IOWR('|', 0x02, struct media_links_enum)

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#define MEDIA_IOC_SETUP_LINK _IOWR('|', 0x03, struct media_link_desc)

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#define MEDIA_IOC_G_TOPOLOGY _IOWR('|', 0x04, struct media_v2_topology)

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/*

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* Legacy symbols used to avoid userspace compilation breakages.

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* Do not use any of this in new applications!

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*

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* Those symbols map the entity function into types and should be

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* used only on legacy programs for legacy hardware. Don't rely

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* on those for MEDIA_IOC_G_TOPOLOGY.

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*/

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#define MEDIA_ENT_TYPE_SHIFT 16

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#define MEDIA_ENT_TYPE_MASK 0x00ff0000

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#define MEDIA_ENT_SUBTYPE_MASK 0x0000ffff

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#define MEDIA_ENT_T_DEVNODE_UNKNOWN (MEDIA_ENT_F_OLD_BASE | \

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MEDIA_ENT_SUBTYPE_MASK)

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#define MEDIA_ENT_T_DEVNODE MEDIA_ENT_F_OLD_BASE

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#define MEDIA_ENT_T_DEVNODE_V4L MEDIA_ENT_F_IO_V4L

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#define MEDIA_ENT_T_DEVNODE_FB (MEDIA_ENT_F_OLD_BASE + 2)

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#define MEDIA_ENT_T_DEVNODE_ALSA (MEDIA_ENT_F_OLD_BASE + 3)

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#define MEDIA_ENT_T_DEVNODE_DVB (MEDIA_ENT_F_OLD_BASE + 4)

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#define MEDIA_ENT_T_UNKNOWN MEDIA_ENT_F_UNKNOWN

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#define MEDIA_ENT_T_V4L2_VIDEO MEDIA_ENT_F_IO_V4L

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#define MEDIA_ENT_T_V4L2_SUBDEV MEDIA_ENT_F_V4L2_SUBDEV_UNKNOWN

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#define MEDIA_ENT_T_V4L2_SUBDEV_SENSOR MEDIA_ENT_F_CAM_SENSOR

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#define MEDIA_ENT_T_V4L2_SUBDEV_FLASH MEDIA_ENT_F_FLASH

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#define MEDIA_ENT_T_V4L2_SUBDEV_LENS MEDIA_ENT_F_LENS

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#define MEDIA_ENT_T_V4L2_SUBDEV_DECODER MEDIA_ENT_F_ATV_DECODER

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#define MEDIA_ENT_T_V4L2_SUBDEV_TUNER MEDIA_ENT_F_TUNER

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/*

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* There is still no ALSA support in the media controller. These

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* defines should not have been added and we leave them here only

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* in case some application tries to use these defines.

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*/

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#define MEDIA_INTF_T_ALSA_BASE 0x00000300

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#define MEDIA_INTF_T_ALSA_PCM_CAPTURE (MEDIA_INTF_T_ALSA_BASE)

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#define MEDIA_INTF_T_ALSA_PCM_PLAYBACK (MEDIA_INTF_T_ALSA_BASE + 1)

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#define MEDIA_INTF_T_ALSA_CONTROL (MEDIA_INTF_T_ALSA_BASE + 2)

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#define MEDIA_INTF_T_ALSA_COMPRESS (MEDIA_INTF_T_ALSA_BASE + 3)

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#define MEDIA_INTF_T_ALSA_RAWMIDI (MEDIA_INTF_T_ALSA_BASE + 4)

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#define MEDIA_INTF_T_ALSA_HWDEP (MEDIA_INTF_T_ALSA_BASE + 5)

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#define MEDIA_INTF_T_ALSA_SEQUENCER (MEDIA_INTF_T_ALSA_BASE + 6)

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#define MEDIA_INTF_T_ALSA_TIMER (MEDIA_INTF_T_ALSA_BASE + 7)

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/* Obsolete symbol for media_version, no longer used in the kernel */

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#define MEDIA_API_VERSION KERNEL_VERSION(0, 1, 0)

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#endif /* __LINUX_MEDIA_H */

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