418 строки
13 KiB
C
418 строки
13 KiB
C
/* 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.
|
|
*
|
|
* 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 __LINUX_MEDIA_H
|
|
#define __LINUX_MEDIA_H
|
|
|
|
#ifndef __KERNEL__
|
|
#include <stdint.h>
|
|
#endif
|
|
#include <linux/ioctl.h>
|
|
#include <linux/types.h>
|
|
#include <linux/version.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];
|
|
};
|
|
|
|
#define MEDIA_ENT_ID_FLAG_NEXT (1 << 31)
|
|
|
|
/*
|
|
* Initial value to be used when a new entity is created
|
|
* Drivers should change it to something useful
|
|
*/
|
|
#define MEDIA_ENT_F_UNKNOWN 0x00000000
|
|
|
|
/*
|
|
* Base number ranges for entity functions
|
|
*
|
|
* NOTE: those ranges and entity function number are phased just to
|
|
* make it easier to maintain this file. Userspace should not rely on
|
|
* the ranges to identify a group of function types, as newer
|
|
* functions can be added with any name within the full u32 range.
|
|
*/
|
|
#define MEDIA_ENT_F_BASE 0x00000000
|
|
#define MEDIA_ENT_F_OLD_BASE 0x00010000
|
|
#define MEDIA_ENT_F_OLD_SUBDEV_BASE 0x00020000
|
|
|
|
/*
|
|
* DVB entities
|
|
*/
|
|
#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 entities
|
|
*/
|
|
#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)
|
|
|
|
/*
|
|
* Analog TV IF-PLL decoders
|
|
*
|
|
* 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 entities
|
|
*/
|
|
#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)
|
|
|
|
/*
|
|
* Switch and bridge entitites
|
|
*/
|
|
#define MEDIA_ENT_F_VID_MUX (MEDIA_ENT_F_BASE + 0x5001)
|
|
#define MEDIA_ENT_F_VID_IF_BRIDGE (MEDIA_ENT_F_BASE + 0x5002)
|
|
|
|
/*
|
|
* Connectors
|
|
*/
|
|
/* It is a responsibility of the entity drivers to add connectors and links */
|
|
#ifdef __KERNEL__
|
|
/*
|
|
* For now, it should not be used in userspace, as some
|
|
* definitions may change
|
|
*/
|
|
|
|
#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
|
|
|
|
/*
|
|
* Don't touch on those. The ranges MEDIA_ENT_F_OLD_BASE and
|
|
* MEDIA_ENT_F_OLD_SUBDEV_BASE are kept to keep backward compatibility
|
|
* with the legacy v1 API.The number range is out of range by purpose:
|
|
* several previously reserved numbers got excluded from this range.
|
|
*
|
|
* Subdevs are initialized with MEDIA_ENT_T_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_IO_V4L (MEDIA_ENT_F_OLD_BASE + 1)
|
|
|
|
#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)
|
|
#define MEDIA_ENT_F_ATV_DECODER (MEDIA_ENT_F_OLD_SUBDEV_BASE + 4)
|
|
/*
|
|
* 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)
|
|
|
|
#define MEDIA_ENT_F_V4L2_SUBDEV_UNKNOWN MEDIA_ENT_F_OLD_SUBDEV_BASE
|
|
|
|
#if !defined(__KERNEL__) || defined(__NEED_MEDIA_LEGACY_API)
|
|
|
|
/*
|
|
* Legacy symbols used to avoid userspace compilation breakages
|
|
*
|
|
* 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
|
|
|
|
/* End of the old subdev reserved numberspace */
|
|
#define MEDIA_ENT_T_DEVNODE_UNKNOWN (MEDIA_ENT_T_DEVNODE | \
|
|
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_T_DEVNODE + 2)
|
|
#define MEDIA_ENT_T_DEVNODE_ALSA (MEDIA_ENT_T_DEVNODE + 3)
|
|
#define MEDIA_ENT_T_DEVNODE_DVB (MEDIA_ENT_T_DEVNODE + 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
|
|
|
|
/* Obsolete symbol for media_version, no longer used in the kernel */
|
|
#define MEDIA_API_VERSION KERNEL_VERSION(0, 1, 0)
|
|
#endif
|
|
|
|
/* Entity flags */
|
|
#define MEDIA_ENT_FL_DEFAULT (1 << 0)
|
|
#define MEDIA_ENT_FL_CONNECTOR (1 << 1)
|
|
|
|
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 1
|
|
/*
|
|
* 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).
|
|
*
|
|
* So for now mark this as a to do.
|
|
*/
|
|
struct {
|
|
__u32 card;
|
|
__u32 device;
|
|
__u32 subdevice;
|
|
} alsa;
|
|
#endif
|
|
|
|
#if 1
|
|
/*
|
|
* DEPRECATED: previous node specifications. Kept just to
|
|
* avoid breaking compilation, but media_entity_desc.dev
|
|
* should be used instead. In particular, alsa and dvb
|
|
* fields below are wrong: for all devnodes, there should
|
|
* be just major/minor inside the struct, as this is enough
|
|
* to represent any devnode, no matter what type.
|
|
*/
|
|
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 << 0)
|
|
#define MEDIA_PAD_FL_SOURCE (1 << 1)
|
|
#define MEDIA_PAD_FL_MUST_CONNECT (1 << 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 << 0)
|
|
#define MEDIA_LNK_FL_IMMUTABLE (1 << 1)
|
|
#define MEDIA_LNK_FL_DYNAMIC (1 << 2)
|
|
|
|
#define MEDIA_LNK_FL_LINK_TYPE (0xf << 28)
|
|
# define MEDIA_LNK_FL_DATA_LINK (0 << 28)
|
|
# define MEDIA_LNK_FL_INTERFACE_LINK (1 << 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
|
|
#define MEDIA_INTF_T_ALSA_BASE 0x00000300
|
|
|
|
/* 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_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)
|
|
#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)
|
|
|
|
/*
|
|
* MC next gen API definitions
|
|
*
|
|
* NOTE: The declarations below are close to the MC RFC for the Media
|
|
* Controller, the next generation. Yet, there are a few adjustments
|
|
* to do, as we want to be able to have a functional API before
|
|
* the MC properties change. Those will be properly marked below.
|
|
* Please also notice that I removed "num_pads", "num_links",
|
|
* from the proposal, as a proper userspace application will likely
|
|
* use lists for pads/links, just as we intend to do in Kernelspace.
|
|
* The API definition should be freed from fields that are bound to
|
|
* some specific data structure.
|
|
*
|
|
* FIXME: Currently, I opted to name the new types as "media_v2", as this
|
|
* won't cause any conflict with the Kernelspace namespace, nor with
|
|
* the previous kAPI media_*_desc namespace. This can be changed
|
|
* later, before the adding this API upstream.
|
|
*/
|
|
|
|
|
|
struct media_v2_entity {
|
|
__u32 id;
|
|
char name[64]; /* FIXME: move to a property? (RFC says so) */
|
|
__u32 function; /* Main function of the entity */
|
|
__u32 reserved[6];
|
|
} __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));
|
|
|
|
struct media_v2_pad {
|
|
__u32 id;
|
|
__u32 entity_id;
|
|
__u32 flags;
|
|
__u32 reserved[5];
|
|
} __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)
|
|
|
|
#endif /* __LINUX_MEDIA_H */
|