/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
/*
* Multimedia device API
*
* 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 .
*/
#ifndef __LINUX_MEDIA_H
#define __LINUX_MEDIA_H
#include <linux/ioctl.h>
#include <linux/types.h>
struct media_device_info {
char driver[16 ];
char model[32 ];
char serial[40 ];
char bus_info[32 ];
__u32 media_version;
__u32 hw_revision;
__u32 driver_version;
__u32 reserved[31 ];
};
/*
* Base number ranges for entity functions
*
* NOTE : Userspace should not rely on these ranges to identify a group
* of function types , as newer functions can be added with any name within
* the full u32 range .
*
* Some older functions use the MEDIA_ENT_F_OLD_ * _ BASE range . Do not
* change this , this is for backwards compatibility . When adding new
* functions always use MEDIA_ENT_F_BASE .
*/
#define MEDIA_ENT_F_BASE 0 x00000000
#define MEDIA_ENT_F_OLD_BASE 0 x00010000
#define MEDIA_ENT_F_OLD_SUBDEV_BASE 0 x00020000
/*
* Initial value to be used when a new entity is created
* Drivers should change it to something useful .
*/
#define MEDIA_ENT_F_UNKNOWN MEDIA_ENT_F_BASE
/*
* Subdevs are initialized with MEDIA_ENT_F_V4L2_SUBDEV_UNKNOWN in order
* to preserve backward compatibility . Drivers must change to the proper
* subdev type before registering the entity .
*/
#define MEDIA_ENT_F_V4L2_SUBDEV_UNKNOWN MEDIA_ENT_F_OLD_SUBDEV_BASE
/*
* DVB entity functions
*/
#define MEDIA_ENT_F_DTV_DEMOD (MEDIA_ENT_F_BASE + 0 x00001)
#define MEDIA_ENT_F_TS_DEMUX (MEDIA_ENT_F_BASE + 0 x00002)
#define MEDIA_ENT_F_DTV_CA (MEDIA_ENT_F_BASE + 0 x00003)
#define MEDIA_ENT_F_DTV_NET_DECAP (MEDIA_ENT_F_BASE + 0 x00004)
/*
* I / O entity functions
*/
#define MEDIA_ENT_F_IO_V4L (MEDIA_ENT_F_OLD_BASE + 1 )
#define MEDIA_ENT_F_IO_DTV (MEDIA_ENT_F_BASE + 0 x01001)
#define MEDIA_ENT_F_IO_VBI (MEDIA_ENT_F_BASE + 0 x01002)
#define MEDIA_ENT_F_IO_SWRADIO (MEDIA_ENT_F_BASE + 0 x01003)
/*
* Sensor functions
*/
#define MEDIA_ENT_F_CAM_SENSOR (MEDIA_ENT_F_OLD_SUBDEV_BASE + 1 )
#define MEDIA_ENT_F_FLASH (MEDIA_ENT_F_OLD_SUBDEV_BASE + 2 )
#define MEDIA_ENT_F_LENS (MEDIA_ENT_F_OLD_SUBDEV_BASE + 3 )
/*
* Digital TV , analog TV , radio and / or software defined radio tuner functions .
*
* It is a responsibility of the master / bridge drivers to add connectors
* and links for MEDIA_ENT_F_TUNER . Please notice that some old tuners
* may require the usage of separate I2C chips to decode analog TV signals ,
* when the master / bridge chipset doesn ' t have its own TV standard decoder .
* On such cases , the IF - PLL staging is mapped via one or two entities :
* MEDIA_ENT_F_IF_VID_DECODER and / or MEDIA_ENT_F_IF_AUD_DECODER .
*/
#define MEDIA_ENT_F_TUNER (MEDIA_ENT_F_OLD_SUBDEV_BASE + 5 )
/*
* Analog TV IF - PLL decoder functions
*
* It is a responsibility of the master / bridge drivers to create links
* for MEDIA_ENT_F_IF_VID_DECODER and MEDIA_ENT_F_IF_AUD_DECODER .
*/
#define MEDIA_ENT_F_IF_VID_DECODER (MEDIA_ENT_F_BASE + 0 x02001)
#define MEDIA_ENT_F_IF_AUD_DECODER (MEDIA_ENT_F_BASE + 0 x02002)
/*
* Audio entity functions
*/
#define MEDIA_ENT_F_AUDIO_CAPTURE (MEDIA_ENT_F_BASE + 0 x03001)
#define MEDIA_ENT_F_AUDIO_PLAYBACK (MEDIA_ENT_F_BASE + 0 x03002)
#define MEDIA_ENT_F_AUDIO_MIXER (MEDIA_ENT_F_BASE + 0 x03003)
/*
* Processing entity functions
*/
#define MEDIA_ENT_F_PROC_VIDEO_COMPOSER (MEDIA_ENT_F_BASE + 0 x4001)
#define MEDIA_ENT_F_PROC_VIDEO_PIXEL_FORMATTER (MEDIA_ENT_F_BASE + 0 x4002)
#define MEDIA_ENT_F_PROC_VIDEO_PIXEL_ENC_CONV (MEDIA_ENT_F_BASE + 0 x4003)
#define MEDIA_ENT_F_PROC_VIDEO_LUT (MEDIA_ENT_F_BASE + 0 x4004)
#define MEDIA_ENT_F_PROC_VIDEO_SCALER (MEDIA_ENT_F_BASE + 0 x4005)
#define MEDIA_ENT_F_PROC_VIDEO_STATISTICS (MEDIA_ENT_F_BASE + 0 x4006)
#define MEDIA_ENT_F_PROC_VIDEO_ENCODER (MEDIA_ENT_F_BASE + 0 x4007)
#define MEDIA_ENT_F_PROC_VIDEO_DECODER (MEDIA_ENT_F_BASE + 0 x4008)
#define MEDIA_ENT_F_PROC_VIDEO_ISP (MEDIA_ENT_F_BASE + 0 x4009)
/*
* Switch and bridge entity functions
*/
#define MEDIA_ENT_F_VID_MUX (MEDIA_ENT_F_BASE + 0 x5001)
#define MEDIA_ENT_F_VID_IF_BRIDGE (MEDIA_ENT_F_BASE + 0 x5002)
/*
* Video decoder / encoder functions
*/
#define MEDIA_ENT_F_ATV_DECODER (MEDIA_ENT_F_OLD_SUBDEV_BASE + 4 )
#define MEDIA_ENT_F_DV_DECODER (MEDIA_ENT_F_BASE + 0 x6001)
#define MEDIA_ENT_F_DV_ENCODER (MEDIA_ENT_F_BASE + 0 x6002)
/* Entity flags */
#define MEDIA_ENT_FL_DEFAULT (1 U << 0 )
#define MEDIA_ENT_FL_CONNECTOR (1 U << 1 )
/* OR with the entity id value to find the next entity */
#define MEDIA_ENT_ID_FLAG_NEXT (1 U << 31 )
struct media_entity_desc {
__u32 id;
char name[32 ];
__u32 type;
__u32 revision;
__u32 flags;
__u32 group_id;
__u16 pads;
__u16 links;
__u32 reserved[4 ];
union {
/* Node specifications */
struct {
__u32 major;
__u32 minor;
} dev;
#if !defined (__KERNEL__)
/*
* TODO : this shouldn ' t have been added without
* actual drivers that use this . When the first real driver
* appears that sets this information , special attention
* should be given whether this information is 1 ) enough , and
* 2 ) can deal with udev rules that rename devices . The struct
* dev would not be sufficient for this since that does not
* contain the subdevice information . In addition , struct dev
* can only refer to a single device , and not to multiple ( e . g .
* pcm and mixer devices ) .
*/
struct {
__u32 card;
__u32 device;
__u32 subdevice;
} alsa;
/*
* DEPRECATED : previous node specifications . Kept just to
* avoid breaking compilation . Use media_entity_desc . dev
* instead .
*/
struct {
__u32 major;
__u32 minor;
} v4l;
struct {
__u32 major;
__u32 minor;
} fb;
int dvb;
#endif
/* Sub-device specifications */
/* Nothing needed yet */
__u8 raw[184 ];
};
};
#define MEDIA_PAD_FL_SINK (1 U << 0 )
#define MEDIA_PAD_FL_SOURCE (1 U << 1 )
#define MEDIA_PAD_FL_MUST_CONNECT (1 U << 2 )
struct media_pad_desc {
__u32 entity; /* entity ID */
__u16 index; /* pad index */
__u32 flags; /* pad flags */
__u32 reserved[2 ];
};
#define MEDIA_LNK_FL_ENABLED (1 U << 0 )
#define MEDIA_LNK_FL_IMMUTABLE (1 U << 1 )
#define MEDIA_LNK_FL_DYNAMIC (1 U << 2 )
#define MEDIA_LNK_FL_LINK_TYPE (0 xf << 28 )
# define MEDIA_LNK_FL_DATA_LINK (0 U << 28 )
# define MEDIA_LNK_FL_INTERFACE_LINK (1 U << 28 )
# define MEDIA_LNK_FL_ANCILLARY_LINK (2 U << 28 )
struct media_link_desc {
struct media_pad_desc source;
struct media_pad_desc sink;
__u32 flags;
__u32 reserved[2 ];
};
struct media_links_enum {
__u32 entity;
/* Should have enough room for pads elements */
struct media_pad_desc __user *pads;
/* Should have enough room for links elements */
struct media_link_desc __user *links;
__u32 reserved[4 ];
};
/* Interface type ranges */
#define MEDIA_INTF_T_DVB_BASE 0 x00000100
#define MEDIA_INTF_T_V4L_BASE 0 x00000200
/* Interface types */
#define MEDIA_INTF_T_DVB_FE (MEDIA_INTF_T_DVB_BASE)
#define MEDIA_INTF_T_DVB_DEMUX (MEDIA_INTF_T_DVB_BASE + 1 )
#define MEDIA_INTF_T_DVB_DVR (MEDIA_INTF_T_DVB_BASE + 2 )
#define MEDIA_INTF_T_DVB_CA (MEDIA_INTF_T_DVB_BASE + 3 )
#define MEDIA_INTF_T_DVB_NET (MEDIA_INTF_T_DVB_BASE + 4 )
#define MEDIA_INTF_T_V4L_VIDEO (MEDIA_INTF_T_V4L_BASE)
#define MEDIA_INTF_T_V4L_VBI (MEDIA_INTF_T_V4L_BASE + 1 )
#define MEDIA_INTF_T_V4L_RADIO (MEDIA_INTF_T_V4L_BASE + 2 )
#define MEDIA_INTF_T_V4L_SUBDEV (MEDIA_INTF_T_V4L_BASE + 3 )
#define MEDIA_INTF_T_V4L_SWRADIO (MEDIA_INTF_T_V4L_BASE + 4 )
#define MEDIA_INTF_T_V4L_TOUCH (MEDIA_INTF_T_V4L_BASE + 5 )
#define MEDIA_INTF_T_ALSA_BASE 0 x00000300
#define MEDIA_INTF_T_ALSA_PCM_CAPTURE (MEDIA_INTF_T_ALSA_BASE)
#define MEDIA_INTF_T_ALSA_PCM_PLAYBACK (MEDIA_INTF_T_ALSA_BASE + 1 )
#define MEDIA_INTF_T_ALSA_CONTROL (MEDIA_INTF_T_ALSA_BASE + 2 )
#if defined (__KERNEL__)
/*
* Connector functions
*
* For now these should not be used in userspace , as some definitions may
* change .
*
* It is the responsibility of the entity drivers to add connectors and links .
*/
#define MEDIA_ENT_F_CONN_RF (MEDIA_ENT_F_BASE + 0 x30001)
#define MEDIA_ENT_F_CONN_SVIDEO (MEDIA_ENT_F_BASE + 0 x30002)
#define MEDIA_ENT_F_CONN_COMPOSITE (MEDIA_ENT_F_BASE + 0 x30003)
#endif
/*
* MC next gen API definitions
*/
/*
* Appeared in 4 . 19 . 0 .
*
* The media_version argument comes from the media_version field in
* struct media_device_info .
*/
#define MEDIA_V2_ENTITY_HAS_FLAGS(media_version) \
((media_version) >= ((4 U << 16 ) | (19 U << 8 ) | 0 U))
struct media_v2_entity {
__u32 id;
char name[64 ];
__u32 function; /* Main function of the entity */
__u32 flags;
__u32 reserved[5 ];
} __attribute__ ((packed));
/* Should match the specific fields at media_intf_devnode */
struct media_v2_intf_devnode {
__u32 major;
__u32 minor;
} __attribute__ ((packed));
struct media_v2_interface {
__u32 id;
__u32 intf_type;
__u32 flags;
__u32 reserved[9 ];
union {
struct media_v2_intf_devnode devnode;
__u32 raw[16 ];
};
} __attribute__ ((packed));
/*
* Appeared in 4 . 19 . 0 .
*
* The media_version argument comes from the media_version field in
* struct media_device_info .
*/
#define MEDIA_V2_PAD_HAS_INDEX(media_version) \
((media_version) >= ((4 U << 16 ) | (19 U << 8 ) | 0 U))
struct media_v2_pad {
__u32 id;
__u32 entity_id;
__u32 flags;
__u32 index;
__u32 reserved[4 ];
} __attribute__ ((packed));
struct media_v2_link {
__u32 id;
__u32 source_id;
__u32 sink_id;
__u32 flags;
__u32 reserved[6 ];
} __attribute__ ((packed));
struct media_v2_topology {
__u64 topology_version;
__u32 num_entities;
__u32 reserved1;
__u64 ptr_entities;
__u32 num_interfaces;
__u32 reserved2;
__u64 ptr_interfaces;
__u32 num_pads;
__u32 reserved3;
__u64 ptr_pads;
__u32 num_links;
__u32 reserved4;
__u64 ptr_links;
} __attribute__ ((packed));
/* ioctls */
#define MEDIA_IOC_DEVICE_INFO _IOWR('|' , 0 x00, struct media_device_info)
#define MEDIA_IOC_ENUM_ENTITIES _IOWR('|' , 0 x01, struct media_entity_desc)
#define MEDIA_IOC_ENUM_LINKS _IOWR('|' , 0 x02, struct media_links_enum)
#define MEDIA_IOC_SETUP_LINK _IOWR('|' , 0 x03, struct media_link_desc)
#define MEDIA_IOC_G_TOPOLOGY _IOWR('|' , 0 x04, struct media_v2_topology)
#define MEDIA_IOC_REQUEST_ALLOC _IOR ('|' , 0 x05, int )
/*
* These ioctls are called on the request file descriptor as returned
* by MEDIA_IOC_REQUEST_ALLOC .
*/
#define MEDIA_REQUEST_IOC_QUEUE _IO('|' , 0 x80)
#define MEDIA_REQUEST_IOC_REINIT _IO('|' , 0 x81)
#ifndef __KERNEL__
/*
* Legacy symbols used to avoid userspace compilation breakages .
* Do not use any of this in new applications !
*
* Those symbols map the entity function into types and should be
* used only on legacy programs for legacy hardware . Don ' t rely
* on those for MEDIA_IOC_G_TOPOLOGY .
*/
#define MEDIA_ENT_TYPE_SHIFT 16
#define MEDIA_ENT_TYPE_MASK 0 x00ff0000
#define MEDIA_ENT_SUBTYPE_MASK 0 x0000ffff
#define MEDIA_ENT_T_DEVNODE_UNKNOWN (MEDIA_ENT_F_OLD_BASE | \
MEDIA_ENT_SUBTYPE_MASK)
#define MEDIA_ENT_T_DEVNODE MEDIA_ENT_F_OLD_BASE
#define MEDIA_ENT_T_DEVNODE_V4L MEDIA_ENT_F_IO_V4L
#define MEDIA_ENT_T_DEVNODE_FB (MEDIA_ENT_F_OLD_BASE + 2 )
#define MEDIA_ENT_T_DEVNODE_ALSA (MEDIA_ENT_F_OLD_BASE + 3 )
#define MEDIA_ENT_T_DEVNODE_DVB (MEDIA_ENT_F_OLD_BASE + 4 )
#define MEDIA_ENT_T_UNKNOWN MEDIA_ENT_F_UNKNOWN
#define MEDIA_ENT_T_V4L2_VIDEO MEDIA_ENT_F_IO_V4L
#define MEDIA_ENT_T_V4L2_SUBDEV MEDIA_ENT_F_V4L2_SUBDEV_UNKNOWN
#define MEDIA_ENT_T_V4L2_SUBDEV_SENSOR MEDIA_ENT_F_CAM_SENSOR
#define MEDIA_ENT_T_V4L2_SUBDEV_FLASH MEDIA_ENT_F_FLASH
#define MEDIA_ENT_T_V4L2_SUBDEV_LENS MEDIA_ENT_F_LENS
#define MEDIA_ENT_T_V4L2_SUBDEV_DECODER MEDIA_ENT_F_ATV_DECODER
#define MEDIA_ENT_T_V4L2_SUBDEV_TUNER MEDIA_ENT_F_TUNER
#define MEDIA_ENT_F_DTV_DECODER MEDIA_ENT_F_DV_DECODER
/*
* There is still no full ALSA support in the media controller . These
* defines should not have been added and we leave them here only
* in case some application tries to use these defines .
*
* The ALSA defines that are in use have been moved into _ _ KERNEL__
* scope . As support gets added to these interface types , they should
* be moved into _ _ KERNEL__ scope with the code that uses them .
*/
#define MEDIA_INTF_T_ALSA_COMPRESS (MEDIA_INTF_T_ALSA_BASE + 3 )
#define MEDIA_INTF_T_ALSA_RAWMIDI (MEDIA_INTF_T_ALSA_BASE + 4 )
#define MEDIA_INTF_T_ALSA_HWDEP (MEDIA_INTF_T_ALSA_BASE + 5 )
#define MEDIA_INTF_T_ALSA_SEQUENCER (MEDIA_INTF_T_ALSA_BASE + 6 )
#define MEDIA_INTF_T_ALSA_TIMER (MEDIA_INTF_T_ALSA_BASE + 7 )
/* Obsolete symbol for media_version, no longer used in the kernel */
#define MEDIA_API_VERSION ((0 U << 16 ) | (1 U << 8 ) | 0 U)
#endif
#endif /* __LINUX_MEDIA_H */
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