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+Files in this directory are imported from v4.19 of the Linux kernel. Do not
+modify them manually.
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+/* 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 <stdint.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)
+
+/*
+ * 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 (1 << 0)
+#define MEDIA_ENT_FL_CONNECTOR (1 << 1)
+
+/* OR with the entity id value to find the next entity */
+#define MEDIA_ENT_ID_FLAG_NEXT (1 << 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;
+
+ /*
+ * 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;
+
+ /* 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 *pads;
+ /* Should have enough room for links elements */
+ struct media_link_desc *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)
+
+
+/*
+ * 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 << 16) | (19 << 8) | 0))
+
+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 << 16) | (19 << 8) | 0))
+
+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)
+
+
+/*
+ * 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 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.
+ */
+#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)
+#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 << 16) | (1 << 8) | 0)
+
+
+#endif /* __LINUX_MEDIA_H */