2020-02-06 02:18:57 +00:00
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/* 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 <laurent.pinchart@ideasonboard.com>
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* Sakari Ailus <sakari.ailus@iki.fi>
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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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#include <stdint.h>
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2020-05-10 09:38:11 +00:00
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#include "linux/types-compat.h"
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2020-02-06 02:18:57 +00:00
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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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2020-09-30 13:40:51 +00:00
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#define MEDIA_ENT_F_PROC_VIDEO_ISP (MEDIA_ENT_F_BASE + 0x4009)
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2020-02-06 02:18:57 +00:00
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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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/*
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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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/* 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 *pads;
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/* Should have enough room for links elements */
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struct media_link_desc *links;
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2020-02-06 02:18:57 +00:00
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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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/*
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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;
|
|
|
|
__u64 ptr_pads;
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|
|
__u32 num_links;
|
|
|
|
__u32 reserved4;
|
|
|
|
__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
|
|
|
|
* 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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|
|
/*
|
|
|
|
* 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.
|
|
|
|
*/
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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 | \
|
|
|
|
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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|
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|
|
#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 ((0 << 16) | (1 << 8) | 0)
|
|
|
|
|
|
|
|
|
|
|
|
#endif /* __LINUX_MEDIA_H */
|