mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-10-05 00:20:32 +00:00
e2be04c7f9
Many user space API headers have licensing information, which is either
incomplete, badly formatted or just a shorthand for referring to the
license under which the file is supposed to be. This makes it hard for
compliance tools to determine the correct license.
Update these files with an SPDX license identifier. The identifier was
chosen based on the license information in the file.
GPL/LGPL licensed headers get the matching GPL/LGPL SPDX license
identifier with the added 'WITH Linux-syscall-note' exception, which is
the officially assigned exception identifier for the kernel syscall
exception:
NOTE! This copyright does *not* cover user programs that use kernel
services by normal system calls - this is merely considered normal use
of the kernel, and does *not* fall under the heading of "derived work".
This exception makes it possible to include GPL headers into non GPL
code, without confusing license compliance tools.
Headers which have either explicit dual licensing or are just licensed
under a non GPL license are updated with the corresponding SPDX
identifier and the GPLv2 with syscall exception identifier. The format
is:
((GPL-2.0 WITH Linux-syscall-note) OR SPDX-ID-OF-OTHER-LICENSE)
SPDX license identifiers are a legally binding shorthand, which can be
used instead of the full boiler plate text. The update does not remove
existing license information as this has to be done on a case by case
basis and the copyright holders might have to be consulted. This will
happen in a separate step.
This patch is based on work done by Thomas Gleixner and Kate Stewart and
Philippe Ombredanne. See the previous patch in this series for the
methodology of how this patch was researched.
Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org>
Reviewed-by: Philippe Ombredanne <pombredanne@nexb.com>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
417 lines
13 KiB
C
417 lines
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 */
|