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(I'm so sorry!) Linux kernel mirror (for testing) git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel os linux
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#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 0x00000000#define MEDIA_ENT_F_OLD_BASE 0x00010000#define MEDIA_ENT_F_OLD_SUBDEV_BASE 0x00020000
/* * 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 + 0x00001)#define MEDIA_ENT_F_TS_DEMUX (MEDIA_ENT_F_BASE + 0x00002)#define MEDIA_ENT_F_DTV_CA (MEDIA_ENT_F_BASE + 0x00003)#define MEDIA_ENT_F_DTV_NET_DECAP (MEDIA_ENT_F_BASE + 0x00004)
/* * 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 + 0x01001)#define MEDIA_ENT_F_IO_VBI (MEDIA_ENT_F_BASE + 0x01002)#define MEDIA_ENT_F_IO_SWRADIO (MEDIA_ENT_F_BASE + 0x01003)
/* * 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 + 0x02001)#define MEDIA_ENT_F_IF_AUD_DECODER (MEDIA_ENT_F_BASE + 0x02002)
/* * Audio entity functions */#define MEDIA_ENT_F_AUDIO_CAPTURE (MEDIA_ENT_F_BASE + 0x03001)#define MEDIA_ENT_F_AUDIO_PLAYBACK (MEDIA_ENT_F_BASE + 0x03002)#define MEDIA_ENT_F_AUDIO_MIXER (MEDIA_ENT_F_BASE + 0x03003)
/* * Processing entity functions */#define MEDIA_ENT_F_PROC_VIDEO_COMPOSER (MEDIA_ENT_F_BASE + 0x4001)#define MEDIA_ENT_F_PROC_VIDEO_PIXEL_FORMATTER (MEDIA_ENT_F_BASE + 0x4002)#define MEDIA_ENT_F_PROC_VIDEO_PIXEL_ENC_CONV (MEDIA_ENT_F_BASE + 0x4003)#define MEDIA_ENT_F_PROC_VIDEO_LUT (MEDIA_ENT_F_BASE + 0x4004)#define MEDIA_ENT_F_PROC_VIDEO_SCALER (MEDIA_ENT_F_BASE + 0x4005)#define MEDIA_ENT_F_PROC_VIDEO_STATISTICS (MEDIA_ENT_F_BASE + 0x4006)#define MEDIA_ENT_F_PROC_VIDEO_ENCODER (MEDIA_ENT_F_BASE + 0x4007)#define MEDIA_ENT_F_PROC_VIDEO_DECODER (MEDIA_ENT_F_BASE + 0x4008)#define MEDIA_ENT_F_PROC_VIDEO_ISP (MEDIA_ENT_F_BASE + 0x4009)
/* * Switch and bridge entity functions */#define MEDIA_ENT_F_VID_MUX (MEDIA_ENT_F_BASE + 0x5001)#define MEDIA_ENT_F_VID_IF_BRIDGE (MEDIA_ENT_F_BASE + 0x5002)
/* * 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 + 0x6001)#define MEDIA_ENT_F_DV_ENCODER (MEDIA_ENT_F_BASE + 0x6002)
/* Entity flags */#define MEDIA_ENT_FL_DEFAULT (1U << 0)#define MEDIA_ENT_FL_CONNECTOR (1U << 1)
/* OR with the entity id value to find the next entity */#define MEDIA_ENT_ID_FLAG_NEXT (1U << 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 (1U << 0)#define MEDIA_PAD_FL_SOURCE (1U << 1)#define MEDIA_PAD_FL_MUST_CONNECT (1U << 2)#if defined(__KERNEL__)/* * Forgo INTERNAL pads until proper documentation and v4l2-compliance testing * are merged. */#define MEDIA_PAD_FL_INTERNAL (1U << 3)#endif /* __KERNEL__ */
struct media_pad_desc { __u32 entity; /* entity ID */ __u16 index; /* pad index */ __u32 flags; /* pad flags */ __u32 reserved[2];};
#define MEDIA_LNK_FL_ENABLED (1U << 0)#define MEDIA_LNK_FL_IMMUTABLE (1U << 1)#define MEDIA_LNK_FL_DYNAMIC (1U << 2)
#define MEDIA_LNK_FL_LINK_TYPE (0xf << 28)# define MEDIA_LNK_FL_DATA_LINK (0U << 28)# define MEDIA_LNK_FL_INTERFACE_LINK (1U << 28)# define MEDIA_LNK_FL_ANCILLARY_LINK (2U << 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 0x00000100#define MEDIA_INTF_T_V4L_BASE 0x00000200
/* 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 0x00000300#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 + 0x30001)#define MEDIA_ENT_F_CONN_SVIDEO (MEDIA_ENT_F_BASE + 0x30002)#define MEDIA_ENT_F_CONN_COMPOSITE (MEDIA_ENT_F_BASE + 0x30003)
#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) >= ((4U << 16) | (19U << 8) | 0U))
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) >= ((4U << 16) | (19U << 8) | 0U))
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('|', 0x00, struct media_device_info)#define MEDIA_IOC_ENUM_ENTITIES _IOWR('|', 0x01, struct media_entity_desc)#define MEDIA_IOC_ENUM_LINKS _IOWR('|', 0x02, struct media_links_enum)#define MEDIA_IOC_SETUP_LINK _IOWR('|', 0x03, struct media_link_desc)#define MEDIA_IOC_G_TOPOLOGY _IOWR('|', 0x04, struct media_v2_topology)#define MEDIA_IOC_REQUEST_ALLOC _IOR ('|', 0x05, int)
/* * These ioctls are called on the request file descriptor as returned * by MEDIA_IOC_REQUEST_ALLOC. */#define MEDIA_REQUEST_IOC_QUEUE _IO('|', 0x80)#define MEDIA_REQUEST_IOC_REINIT _IO('|', 0x81)
#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 0x00ff0000#define MEDIA_ENT_SUBTYPE_MASK 0x0000ffff
#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 ((0U << 16) | (1U << 8) | 0U)
#endif
#endif /* __LINUX_MEDIA_H */