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441 lines
13 KiB
441 lines
13 KiB
/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ |
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/* |
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* Multimedia device API |
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* |
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* Copyright (C) 2010 Nokia Corporation |
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* |
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* Contacts: Laurent Pinchart <[email protected]> |
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* Sakari Ailus <[email protected]> |
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* |
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* This program is free software; you can redistribute it and/or modify |
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* it under the terms of the GNU General Public License version 2 as |
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* published by the Free Software Foundation. |
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* |
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* This program is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU General Public License for more details. |
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*/ |
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#ifndef __LINUX_MEDIA_H |
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#define __LINUX_MEDIA_H |
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#ifndef __KERNEL__ |
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#include <stdint.h> |
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#endif |
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#include <linux/ioctl.h> |
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#include <linux/types.h> |
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struct media_device_info { |
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char driver[16]; |
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char model[32]; |
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char serial[40]; |
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char bus_info[32]; |
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__u32 media_version; |
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__u32 hw_revision; |
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__u32 driver_version; |
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__u32 reserved[31]; |
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}; |
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/* |
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* Base number ranges for entity functions |
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* |
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* NOTE: Userspace should not rely on these ranges to identify a group |
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* of function types, as newer functions can be added with any name within |
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* the full u32 range. |
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* |
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* Some older functions use the MEDIA_ENT_F_OLD_*_BASE range. Do not |
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* change this, this is for backwards compatibility. When adding new |
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* functions always use MEDIA_ENT_F_BASE. |
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*/ |
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#define MEDIA_ENT_F_BASE 0x00000000 |
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#define MEDIA_ENT_F_OLD_BASE 0x00010000 |
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#define MEDIA_ENT_F_OLD_SUBDEV_BASE 0x00020000 |
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/* |
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* Initial value to be used when a new entity is created |
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* Drivers should change it to something useful. |
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*/ |
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#define MEDIA_ENT_F_UNKNOWN MEDIA_ENT_F_BASE |
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/* |
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* Subdevs are initialized with MEDIA_ENT_F_V4L2_SUBDEV_UNKNOWN in order |
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* to preserve backward compatibility. Drivers must change to the proper |
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* subdev type before registering the entity. |
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*/ |
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#define MEDIA_ENT_F_V4L2_SUBDEV_UNKNOWN MEDIA_ENT_F_OLD_SUBDEV_BASE |
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/* |
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* DVB entity functions |
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*/ |
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#define MEDIA_ENT_F_DTV_DEMOD (MEDIA_ENT_F_BASE + 0x00001) |
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#define MEDIA_ENT_F_TS_DEMUX (MEDIA_ENT_F_BASE + 0x00002) |
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#define MEDIA_ENT_F_DTV_CA (MEDIA_ENT_F_BASE + 0x00003) |
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#define MEDIA_ENT_F_DTV_NET_DECAP (MEDIA_ENT_F_BASE + 0x00004) |
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/* |
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* I/O entity functions |
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*/ |
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#define MEDIA_ENT_F_IO_V4L (MEDIA_ENT_F_OLD_BASE + 1) |
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#define MEDIA_ENT_F_IO_DTV (MEDIA_ENT_F_BASE + 0x01001) |
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#define MEDIA_ENT_F_IO_VBI (MEDIA_ENT_F_BASE + 0x01002) |
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#define MEDIA_ENT_F_IO_SWRADIO (MEDIA_ENT_F_BASE + 0x01003) |
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/* |
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* Sensor functions |
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*/ |
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#define MEDIA_ENT_F_CAM_SENSOR (MEDIA_ENT_F_OLD_SUBDEV_BASE + 1) |
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#define MEDIA_ENT_F_FLASH (MEDIA_ENT_F_OLD_SUBDEV_BASE + 2) |
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#define MEDIA_ENT_F_LENS (MEDIA_ENT_F_OLD_SUBDEV_BASE + 3) |
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/* |
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* Digital TV, analog TV, radio and/or software defined radio tuner functions. |
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* |
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* It is a responsibility of the master/bridge drivers to add connectors |
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* and links for MEDIA_ENT_F_TUNER. Please notice that some old tuners |
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* may require the usage of separate I2C chips to decode analog TV signals, |
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* when the master/bridge chipset doesn't have its own TV standard decoder. |
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* On such cases, the IF-PLL staging is mapped via one or two entities: |
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* MEDIA_ENT_F_IF_VID_DECODER and/or MEDIA_ENT_F_IF_AUD_DECODER. |
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*/ |
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#define MEDIA_ENT_F_TUNER (MEDIA_ENT_F_OLD_SUBDEV_BASE + 5) |
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/* |
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* Analog TV IF-PLL decoder functions |
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* |
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* It is a responsibility of the master/bridge drivers to create links |
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* for MEDIA_ENT_F_IF_VID_DECODER and MEDIA_ENT_F_IF_AUD_DECODER. |
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*/ |
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#define MEDIA_ENT_F_IF_VID_DECODER (MEDIA_ENT_F_BASE + 0x02001) |
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#define MEDIA_ENT_F_IF_AUD_DECODER (MEDIA_ENT_F_BASE + 0x02002) |
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/* |
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* Audio entity functions |
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*/ |
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#define MEDIA_ENT_F_AUDIO_CAPTURE (MEDIA_ENT_F_BASE + 0x03001) |
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#define MEDIA_ENT_F_AUDIO_PLAYBACK (MEDIA_ENT_F_BASE + 0x03002) |
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#define MEDIA_ENT_F_AUDIO_MIXER (MEDIA_ENT_F_BASE + 0x03003) |
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/* |
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* Processing entity functions |
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*/ |
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#define MEDIA_ENT_F_PROC_VIDEO_COMPOSER (MEDIA_ENT_F_BASE + 0x4001) |
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#define MEDIA_ENT_F_PROC_VIDEO_PIXEL_FORMATTER (MEDIA_ENT_F_BASE + 0x4002) |
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#define MEDIA_ENT_F_PROC_VIDEO_PIXEL_ENC_CONV (MEDIA_ENT_F_BASE + 0x4003) |
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#define MEDIA_ENT_F_PROC_VIDEO_LUT (MEDIA_ENT_F_BASE + 0x4004) |
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#define MEDIA_ENT_F_PROC_VIDEO_SCALER (MEDIA_ENT_F_BASE + 0x4005) |
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#define MEDIA_ENT_F_PROC_VIDEO_STATISTICS (MEDIA_ENT_F_BASE + 0x4006) |
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#define MEDIA_ENT_F_PROC_VIDEO_ENCODER (MEDIA_ENT_F_BASE + 0x4007) |
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#define MEDIA_ENT_F_PROC_VIDEO_DECODER (MEDIA_ENT_F_BASE + 0x4008) |
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#define MEDIA_ENT_F_PROC_VIDEO_ISP (MEDIA_ENT_F_BASE + 0x4009) |
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/* |
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* Switch and bridge entity functions |
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*/ |
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#define MEDIA_ENT_F_VID_MUX (MEDIA_ENT_F_BASE + 0x5001) |
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#define MEDIA_ENT_F_VID_IF_BRIDGE (MEDIA_ENT_F_BASE + 0x5002) |
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/* |
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* Video decoder/encoder functions |
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*/ |
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#define MEDIA_ENT_F_ATV_DECODER (MEDIA_ENT_F_OLD_SUBDEV_BASE + 4) |
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#define MEDIA_ENT_F_DV_DECODER (MEDIA_ENT_F_BASE + 0x6001) |
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#define MEDIA_ENT_F_DV_ENCODER (MEDIA_ENT_F_BASE + 0x6002) |
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/* Entity flags */ |
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#define MEDIA_ENT_FL_DEFAULT (1 << 0) |
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#define MEDIA_ENT_FL_CONNECTOR (1 << 1) |
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/* OR with the entity id value to find the next entity */ |
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#define MEDIA_ENT_ID_FLAG_NEXT (1U << 31) |
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struct media_entity_desc { |
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__u32 id; |
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char name[32]; |
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__u32 type; |
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__u32 revision; |
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__u32 flags; |
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__u32 group_id; |
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__u16 pads; |
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__u16 links; |
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__u32 reserved[4]; |
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union { |
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/* Node specifications */ |
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struct { |
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__u32 major; |
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__u32 minor; |
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} dev; |
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#if !defined(__KERNEL__) |
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/* |
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* TODO: this shouldn't have been added without |
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* actual drivers that use this. When the first real driver |
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* appears that sets this information, special attention |
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* should be given whether this information is 1) enough, and |
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* 2) can deal with udev rules that rename devices. The struct |
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* dev would not be sufficient for this since that does not |
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* contain the subdevice information. In addition, struct dev |
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* can only refer to a single device, and not to multiple (e.g. |
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* pcm and mixer devices). |
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*/ |
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struct { |
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__u32 card; |
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__u32 device; |
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__u32 subdevice; |
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} alsa; |
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/* |
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* DEPRECATED: previous node specifications. Kept just to |
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* avoid breaking compilation. Use media_entity_desc.dev |
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* instead. |
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*/ |
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struct { |
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__u32 major; |
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__u32 minor; |
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} v4l; |
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struct { |
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__u32 major; |
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__u32 minor; |
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} fb; |
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int dvb; |
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#endif |
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/* Sub-device specifications */ |
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/* Nothing needed yet */ |
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__u8 raw[184]; |
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}; |
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}; |
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#define MEDIA_PAD_FL_SINK (1 << 0) |
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#define MEDIA_PAD_FL_SOURCE (1 << 1) |
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#define MEDIA_PAD_FL_MUST_CONNECT (1 << 2) |
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struct media_pad_desc { |
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__u32 entity; /* entity ID */ |
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__u16 index; /* pad index */ |
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__u32 flags; /* pad flags */ |
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__u32 reserved[2]; |
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}; |
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#define MEDIA_LNK_FL_ENABLED (1 << 0) |
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#define MEDIA_LNK_FL_IMMUTABLE (1 << 1) |
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#define MEDIA_LNK_FL_DYNAMIC (1 << 2) |
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#define MEDIA_LNK_FL_LINK_TYPE (0xf << 28) |
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# define MEDIA_LNK_FL_DATA_LINK (0 << 28) |
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# define MEDIA_LNK_FL_INTERFACE_LINK (1 << 28) |
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struct media_link_desc { |
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struct media_pad_desc source; |
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struct media_pad_desc sink; |
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__u32 flags; |
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__u32 reserved[2]; |
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}; |
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struct media_links_enum { |
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__u32 entity; |
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/* Should have enough room for pads elements */ |
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struct media_pad_desc __user *pads; |
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/* Should have enough room for links elements */ |
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struct media_link_desc __user *links; |
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__u32 reserved[4]; |
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}; |
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/* Interface type ranges */ |
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#define MEDIA_INTF_T_DVB_BASE 0x00000100 |
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#define MEDIA_INTF_T_V4L_BASE 0x00000200 |
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/* Interface types */ |
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#define MEDIA_INTF_T_DVB_FE (MEDIA_INTF_T_DVB_BASE) |
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#define MEDIA_INTF_T_DVB_DEMUX (MEDIA_INTF_T_DVB_BASE + 1) |
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#define MEDIA_INTF_T_DVB_DVR (MEDIA_INTF_T_DVB_BASE + 2) |
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#define MEDIA_INTF_T_DVB_CA (MEDIA_INTF_T_DVB_BASE + 3) |
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#define MEDIA_INTF_T_DVB_NET (MEDIA_INTF_T_DVB_BASE + 4) |
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#define MEDIA_INTF_T_V4L_VIDEO (MEDIA_INTF_T_V4L_BASE) |
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#define MEDIA_INTF_T_V4L_VBI (MEDIA_INTF_T_V4L_BASE + 1) |
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#define MEDIA_INTF_T_V4L_RADIO (MEDIA_INTF_T_V4L_BASE + 2) |
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#define MEDIA_INTF_T_V4L_SUBDEV (MEDIA_INTF_T_V4L_BASE + 3) |
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#define MEDIA_INTF_T_V4L_SWRADIO (MEDIA_INTF_T_V4L_BASE + 4) |
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#define MEDIA_INTF_T_V4L_TOUCH (MEDIA_INTF_T_V4L_BASE + 5) |
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#define MEDIA_INTF_T_ALSA_BASE 0x00000300 |
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#define MEDIA_INTF_T_ALSA_PCM_CAPTURE (MEDIA_INTF_T_ALSA_BASE) |
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#define MEDIA_INTF_T_ALSA_PCM_PLAYBACK (MEDIA_INTF_T_ALSA_BASE + 1) |
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#define MEDIA_INTF_T_ALSA_CONTROL (MEDIA_INTF_T_ALSA_BASE + 2) |
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#if defined(__KERNEL__) |
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/* |
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* Connector functions |
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* |
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* For now these should not be used in userspace, as some definitions may |
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* change. |
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* |
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* It is the responsibility of the entity drivers to add connectors and links. |
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*/ |
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#define MEDIA_ENT_F_CONN_RF (MEDIA_ENT_F_BASE + 0x30001) |
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#define MEDIA_ENT_F_CONN_SVIDEO (MEDIA_ENT_F_BASE + 0x30002) |
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#define MEDIA_ENT_F_CONN_COMPOSITE (MEDIA_ENT_F_BASE + 0x30003) |
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#endif |
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/* |
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* MC next gen API definitions |
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*/ |
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/* |
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* Appeared in 4.19.0. |
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* |
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* The media_version argument comes from the media_version field in |
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* struct media_device_info. |
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*/ |
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#define MEDIA_V2_ENTITY_HAS_FLAGS(media_version) \ |
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((media_version) >= ((4 << 16) | (19 << 8) | 0)) |
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struct media_v2_entity { |
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__u32 id; |
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char name[64]; |
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__u32 function; /* Main function of the entity */ |
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__u32 flags; |
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__u32 reserved[5]; |
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} __attribute__ ((packed)); |
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/* Should match the specific fields at media_intf_devnode */ |
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struct media_v2_intf_devnode { |
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__u32 major; |
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__u32 minor; |
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} __attribute__ ((packed)); |
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struct media_v2_interface { |
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__u32 id; |
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__u32 intf_type; |
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__u32 flags; |
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__u32 reserved[9]; |
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union { |
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struct media_v2_intf_devnode devnode; |
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__u32 raw[16]; |
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}; |
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} __attribute__ ((packed)); |
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/* |
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* Appeared in 4.19.0. |
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* |
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* The media_version argument comes from the media_version field in |
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* struct media_device_info. |
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*/ |
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#define MEDIA_V2_PAD_HAS_INDEX(media_version) \ |
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((media_version) >= ((4 << 16) | (19 << 8) | 0)) |
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struct media_v2_pad { |
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__u32 id; |
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__u32 entity_id; |
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__u32 flags; |
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__u32 index; |
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__u32 reserved[4]; |
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} __attribute__ ((packed)); |
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struct media_v2_link { |
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__u32 id; |
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__u32 source_id; |
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__u32 sink_id; |
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__u32 flags; |
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__u32 reserved[6]; |
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} __attribute__ ((packed)); |
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struct media_v2_topology { |
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__u64 topology_version; |
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__u32 num_entities; |
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__u32 reserved1; |
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__u64 ptr_entities; |
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__u32 num_interfaces; |
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__u32 reserved2; |
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__u64 ptr_interfaces; |
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__u32 num_pads; |
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__u32 reserved3; |
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__u64 ptr_pads; |
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__u32 num_links; |
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__u32 reserved4; |
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__u64 ptr_links; |
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} __attribute__ ((packed)); |
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/* ioctls */ |
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#define MEDIA_IOC_DEVICE_INFO _IOWR('|', 0x00, struct media_device_info) |
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#define MEDIA_IOC_ENUM_ENTITIES _IOWR('|', 0x01, struct media_entity_desc) |
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#define MEDIA_IOC_ENUM_LINKS _IOWR('|', 0x02, struct media_links_enum) |
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#define MEDIA_IOC_SETUP_LINK _IOWR('|', 0x03, struct media_link_desc) |
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#define MEDIA_IOC_G_TOPOLOGY _IOWR('|', 0x04, struct media_v2_topology) |
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#define MEDIA_IOC_REQUEST_ALLOC _IOR ('|', 0x05, int) |
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/* |
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* These ioctls are called on the request file descriptor as returned |
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* by MEDIA_IOC_REQUEST_ALLOC. |
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*/ |
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#define MEDIA_REQUEST_IOC_QUEUE _IO('|', 0x80) |
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#define MEDIA_REQUEST_IOC_REINIT _IO('|', 0x81) |
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#ifndef __KERNEL__ |
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/* |
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* Legacy symbols used to avoid userspace compilation breakages. |
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* Do not use any of this in new applications! |
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* |
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* Those symbols map the entity function into types and should be |
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* used only on legacy programs for legacy hardware. Don't rely |
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* on those for MEDIA_IOC_G_TOPOLOGY. |
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*/ |
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#define MEDIA_ENT_TYPE_SHIFT 16 |
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#define MEDIA_ENT_TYPE_MASK 0x00ff0000 |
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#define MEDIA_ENT_SUBTYPE_MASK 0x0000ffff |
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#define MEDIA_ENT_T_DEVNODE_UNKNOWN (MEDIA_ENT_F_OLD_BASE | \ |
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MEDIA_ENT_SUBTYPE_MASK) |
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#define MEDIA_ENT_T_DEVNODE MEDIA_ENT_F_OLD_BASE |
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#define MEDIA_ENT_T_DEVNODE_V4L MEDIA_ENT_F_IO_V4L |
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#define MEDIA_ENT_T_DEVNODE_FB (MEDIA_ENT_F_OLD_BASE + 2) |
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#define MEDIA_ENT_T_DEVNODE_ALSA (MEDIA_ENT_F_OLD_BASE + 3) |
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#define MEDIA_ENT_T_DEVNODE_DVB (MEDIA_ENT_F_OLD_BASE + 4) |
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#define MEDIA_ENT_T_UNKNOWN MEDIA_ENT_F_UNKNOWN |
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#define MEDIA_ENT_T_V4L2_VIDEO MEDIA_ENT_F_IO_V4L |
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#define MEDIA_ENT_T_V4L2_SUBDEV MEDIA_ENT_F_V4L2_SUBDEV_UNKNOWN |
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#define MEDIA_ENT_T_V4L2_SUBDEV_SENSOR MEDIA_ENT_F_CAM_SENSOR |
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#define MEDIA_ENT_T_V4L2_SUBDEV_FLASH MEDIA_ENT_F_FLASH |
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#define MEDIA_ENT_T_V4L2_SUBDEV_LENS MEDIA_ENT_F_LENS |
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#define MEDIA_ENT_T_V4L2_SUBDEV_DECODER MEDIA_ENT_F_ATV_DECODER |
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#define MEDIA_ENT_T_V4L2_SUBDEV_TUNER MEDIA_ENT_F_TUNER |
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#define MEDIA_ENT_F_DTV_DECODER MEDIA_ENT_F_DV_DECODER |
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/* |
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* There is still no full ALSA support in the media controller. These |
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* defines should not have been added and we leave them here only |
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* in case some application tries to use these defines. |
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* |
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* The ALSA defines that are in use have been moved into __KERNEL__ |
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* scope. As support gets added to these interface types, they should |
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* be moved into __KERNEL__ scope with the code that uses them. |
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*/ |
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#define MEDIA_INTF_T_ALSA_COMPRESS (MEDIA_INTF_T_ALSA_BASE + 3) |
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#define MEDIA_INTF_T_ALSA_RAWMIDI (MEDIA_INTF_T_ALSA_BASE + 4) |
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#define MEDIA_INTF_T_ALSA_HWDEP (MEDIA_INTF_T_ALSA_BASE + 5) |
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#define MEDIA_INTF_T_ALSA_SEQUENCER (MEDIA_INTF_T_ALSA_BASE + 6) |
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#define MEDIA_INTF_T_ALSA_TIMER (MEDIA_INTF_T_ALSA_BASE + 7) |
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/* Obsolete symbol for media_version, no longer used in the kernel */ |
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#define MEDIA_API_VERSION ((0 << 16) | (1 << 8) | 0) |
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#endif |
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#endif /* __LINUX_MEDIA_H */
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