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# SPDX-License-Identifier: GPL-2.0-only
#
# Multimedia device configuration
#
config CEC_CORE
tristate
config CEC_NOTIFIER
bool
config CEC_PIN
bool
source "drivers/media/rc/Kconfig"
menuconfig MEDIA_SUPPORT
tristate "Multimedia support"
depends on HAS_IOMEM
help
If you want to use media devices, including Webcams, Video grabber
devices and/or TV devices, V4L2 codecs, etc, enable this option
and other options below.
Additional info and docs are available on the web at
<https://linuxtv.org>
if MEDIA_SUPPORT
config MEDIA_SUPPORT_FILTER
bool "Filter devices by their types"
depends on MEDIA_SUPPORT
help
Configuring the media subsystem can be complex, as there are
hundreds of drivers and other config options.
This menu offers option that will help the Kernel's config
system to hide drivers that are out of the scope of the
user needs, and disabling core support for unused APIs.
If not selected, all non-optional media core functionality
needed to support media drivers will be enabled. Also, all
media device drivers should be shown.
menu "Media device types"
visible if MEDIA_SUPPORT_FILTER
#
# Multimedia support - automatically enable V4L2 and DVB core
#
config MEDIA_CAMERA_SUPPORT
bool "Cameras and video grabbers"
default y if !MEDIA_SUPPORT_FILTER
help
Enable support for webcams and video grabbers.
Say Y when you have a webcam or a video capture grabber board.
config MEDIA_ANALOG_TV_SUPPORT
bool "Analog TV"
default y if !MEDIA_SUPPORT_FILTER
help
Enable analog TV support.
Say Y when you have a board with analog TV support.
config MEDIA_DIGITAL_TV_SUPPORT
bool "Digital TV"
default y if !MEDIA_SUPPORT_FILTER
help
Enable digital TV support.
Say Y when you have a board with digital TV support.
config MEDIA_RADIO_SUPPORT
bool "AM/FM radio receivers/transmitters"
default y if !MEDIA_SUPPORT_FILTER
help
Enable AM/FM radio support.
Additional info and docs are available on the web at
<https://linuxtv.org>
Say Y when you have a board with radio support.
config MEDIA_SDR_SUPPORT
bool "Software defined radio"
default y if !MEDIA_SUPPORT_FILTER
help
Enable software defined radio support.
Say Y when you have a software defined radio device.
config MEDIA_CEC_SUPPORT
bool "HDMI CEC"
default y if !MEDIA_SUPPORT_FILTER
help
Enable support for HDMI CEC (Consumer Electronics Control),
which is an optional HDMI feature.
Say Y when you have an HDMI receiver, transmitter or a USB CEC
adapter that supports HDMI CEC.
config MEDIA_PLATFORM_SUPPORT
bool "Platform-specific devices"
default y if !MEDIA_SUPPORT_FILTER
help
Enable support for complex cameras, codecs, and other hardware
that are integrated at the CPU, GPU or on Image Signalling Processor
and don't use PCI, USB or Firewire buses.
This is found on Embedded hardware (SoC), on V4L2 codecs and
on some GPU and newer CPU chipsets.
Say Y when you want to be able so see such devices.
config MEDIA_TEST_SUPPORT
bool "Test drivers"
default y if !MEDIA_SUPPORT_FILTER
help
Those drivers should not be used on production Kernels, but
can be useful on debug ones. It enables several dummy drivers
that simulate a real hardware. Very useful to test userspace
applications and to validate if the subsystem core is doesn't
have regressions.
Say Y if you want to use some virtual test driver.
In case of doubts, say N.
Say Y when you have a software defined radio device.
endmenu # media device types
comment "Multimedia core features"
#
# Video4Linux support
# Only enables if one of the V4L2 types (ATV, webcam, radio) is selected
#
comment "Video4Linux core enabled to support hybrid TV devices"
depends on MEDIA_HYBRID_USB || MEDIA_HYBRID_PCI
config VIDEO_DEV
tristate
prompt "Video4Linux core" if !(MEDIA_HYBRID_USB || MEDIA_HYBRID_PCI)
default MEDIA_CAMERA_SUPPORT || MEDIA_ANALOG_TV_SUPPORT || MEDIA_RADIO_SUPPORT || MEDIA_SDR_SUPPORT || MEDIA_PLATFORM_SUPPORT || MEDIA_TEST_SUPPORT || MEDIA_HYBRID_USB || MEDIA_HYBRID_PCI
config VIDEO_V4L2_SUBDEV_API
bool "V4L2 sub-device userspace API"
depends on VIDEO_DEV && MEDIA_CONTROLLER
help
Enables the V4L2 sub-device pad-level userspace API used to configure
video format, size and frame rate between hardware blocks.
This API is mostly used by camera interfaces in embedded platforms.
#
# DVB Core
# Only enables if one of DTV is selected
#
comment "Digital TV core enabled to support hybrid TV devices"
depends on MEDIA_HYBRID_USB || MEDIA_HYBRID_PCI
config DVB_CORE
tristate
prompt "Digital TV core" if !(MEDIA_HYBRID_USB || MEDIA_HYBRID_PCI)
depends on MEDIA_DIGITAL_TV_SUPPORT
depends on (I2C || I2C=n)
default y
select CRC32
config DVB_MMAP
bool "Enable DVB memory-mapped API (EXPERIMENTAL)"
depends on DVB_CORE
depends on VIDEO_V4L2=y || VIDEO_V4L2=DVB_CORE
select VIDEOBUF2_VMALLOC
help
This option enables DVB experimental memory-mapped API, which
reduces the number of context switches to read DVB buffers, as
the buffers can use mmap() syscalls.
Support for it is experimental. Use with care. If unsure,
say N.
config DVB_NET
bool "DVB Network Support"
default (NET && INET)
depends on NET && INET && DVB_CORE
help
This option enables DVB Network Support which is a part of the DVB
standard. It is used, for example, by automatic firmware updates used
on Set-Top-Boxes. It can also be used to access the Internet via the
DVB card, if the network provider supports it.
You may want to disable the network support on embedded devices. If
unsure say Y.
source "drivers/media/v4l2-core/Kconfig"
source "drivers/media/mc/Kconfig"
source "drivers/media/dvb-core/Kconfig"
source "drivers/media/cec/Kconfig"
comment "Media drivers"
source "drivers/media/usb/Kconfig"
source "drivers/media/pci/Kconfig"
source "drivers/media/radio/Kconfig"
# Common driver options
source "drivers/media/common/Kconfig"
if MEDIA_PLATFORM_SUPPORT
source "drivers/media/platform/Kconfig"
source "drivers/media/test_drivers/Kconfig"
source "drivers/media/mmc/Kconfig"
endif
source "drivers/media/firewire/Kconfig"
comment "Media ancillary drivers (tuners, sensors, i2c, spi, frontends)"
#
# Ancillary drivers (tuners, i2c, spi, frontends)
#
config MEDIA_SUBDRV_AUTOSELECT
bool "Autoselect ancillary drivers (tuners, sensors, i2c, spi, frontends)"
depends on MEDIA_ANALOG_TV_SUPPORT || MEDIA_DIGITAL_TV_SUPPORT || MEDIA_CAMERA_SUPPORT || MEDIA_SDR_SUPPORT
depends on HAS_IOMEM
select I2C
select I2C_MUX
default y if !EMBEDDED
help
By default, a media driver auto-selects all possible ancillary
devices such as tuners, sensors, video encoders/decoders and
frontends, that are used by any of the supported devices.
This is generally the right thing to do, except when there
are strict constraints with regards to the kernel size,
like on embedded systems.
Use this option with care, as deselecting ancillary drivers which
are, in fact, necessary will result in the lack of the needed
functionality for your device (it may not tune or may not have
the needed demodulators).
If unsure say Y.
config MEDIA_HIDE_ANCILLARY_SUBDRV
bool
depends on MEDIA_SUBDRV_AUTOSELECT && !COMPILE_TEST && !EXPERT
default y
config MEDIA_ATTACH
bool
depends on MEDIA_ANALOG_TV_SUPPORT || MEDIA_DIGITAL_TV_SUPPORT || MEDIA_RADIO_SUPPORT
depends on MODULES
default MODULES
source "drivers/media/i2c/Kconfig"
source "drivers/media/spi/Kconfig"
source "drivers/media/tuners/Kconfig"
source "drivers/media/dvb-frontends/Kconfig"
endif # MEDIA_SUPPORT
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