Current File : //usr/src/linux-headers-5.15.0-125-generic/drivers/media/Kconfig
# SPDX-License-Identifier: GPL-2.0-only
#
# Multimedia device configuration
#
#
# NOTE: CEC and Remote Controller support should not depend on MEDIA_SUPPORT
#
source "drivers/media/rc/Kconfig"
source "drivers/media/cec/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 media drivers"
default y if !EMBEDDED && !EXPERT
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.
config MEDIA_SUBDRV_AUTOSELECT
bool "Autoselect ancillary drivers (tuners, sensors, i2c, spi, frontends)"
depends on HAS_IOMEM
select I2C
select I2C_MUX
default y if MEDIA_SUPPORT_FILTER
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.
menu "Media device types"
#
# Multimedia support - automatically enable V4L2 and DVB core
#
config MEDIA_CAMERA_SUPPORT
bool
prompt "Cameras and video grabbers" if MEDIA_SUPPORT_FILTER
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
prompt "Analog TV" if MEDIA_SUPPORT_FILTER
default y if !MEDIA_SUPPORT_FILTER
help
Enable analog TV support.
Say Y when you have a TV board with analog support or with a
hybrid analog/digital TV chipset.
Note: There are several DVB cards that are based on chips that
support both analog and digital TV. Disabling this option
will disable support for them.
config MEDIA_DIGITAL_TV_SUPPORT
bool
prompt "Digital TV" if MEDIA_SUPPORT_FILTER
default y if !MEDIA_SUPPORT_FILTER
help
Enable digital TV support.
Say Y when you have a board with digital support or a board with
hybrid digital TV and analog TV.
config MEDIA_RADIO_SUPPORT
bool
prompt "AM/FM radio receivers/transmitters" if MEDIA_SUPPORT_FILTER
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.
Note: There are several TV cards that are based on chips that
support radio reception. Disabling this option will
disable support for them.
config MEDIA_SDR_SUPPORT
bool
prompt "Software defined radio" if MEDIA_SUPPORT_FILTER
default y if !MEDIA_SUPPORT_FILTER
help
Enable software defined radio support.
Say Y when you have a software defined radio device.
config MEDIA_PLATFORM_SUPPORT
bool
prompt "Platform-specific devices" if MEDIA_SUPPORT_FILTER
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 to see such devices.
config MEDIA_TEST_SUPPORT
bool
prompt "Test drivers" if MEDIA_SUPPORT_FILTER
default y if !MEDIA_SUPPORT_FILTER
help
These drivers should not be used on production kernels, but
can be useful on debug ones. This option enables several dummy drivers
that simulate real hardware. Very useful to test userspace
applications and to validate if the subsystem core 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
menu "Media core support"
visible if !MEDIA_SUPPORT_FILTER
config VIDEO_DEV
tristate "Video4Linux core"
default MEDIA_CAMERA_SUPPORT || MEDIA_ANALOG_TV_SUPPORT || MEDIA_RADIO_SUPPORT || MEDIA_SDR_SUPPORT || MEDIA_PLATFORM_SUPPORT || MEDIA_TEST_SUPPORT
help
Enables the V4L2 API, used by cameras, analog TV, video grabbers,
radio devices and by some input devices.
config MEDIA_CONTROLLER
bool "Media Controller API"
default MEDIA_CAMERA_SUPPORT || MEDIA_ANALOG_TV_SUPPORT || MEDIA_DIGITAL_TV_SUPPORT || MEDIA_PLATFORM_SUPPORT
help
Enable the media controller API used to query media devices internal
topology and configure it dynamically.
This API is mostly used by camera interfaces in embedded platforms.
#
# DVB Core
# Only enables if one of DTV is selected
#
config DVB_CORE
tristate
depends on MEDIA_DIGITAL_TV_SUPPORT
depends on (I2C || I2C=n)
default MEDIA_DIGITAL_TV_SUPPORT
select CRC32
help
Enables the DVB API, used by Digital TV devices. Supports several
standards, including DVB, ATSC, ISDB and CMDB.
endmenu # Media core support
#
# Extra per-media API core functionality
menu "Video4Linux options"
visible if VIDEO_DEV
source "drivers/media/v4l2-core/Kconfig"
endmenu
menu "Media controller options"
visible if MEDIA_CONTROLLER
source "drivers/media/mc/Kconfig"
endmenu
menu "Digital TV options"
visible if DVB_CORE
source "drivers/media/dvb-core/Kconfig"
endmenu
menu "Media drivers"
comment "Drivers filtered as selected at 'Filter media drivers'"
depends on MEDIA_SUPPORT_FILTER
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/mmc/Kconfig"
endif
if MEDIA_TEST_SUPPORT
source "drivers/media/test-drivers/Kconfig"
endif
source "drivers/media/firewire/Kconfig"
endmenu
#
# Ancillary drivers (tuners, i2c, spi, frontends)
#
config MEDIA_HIDE_ANCILLARY_SUBDRV
bool
depends on MEDIA_SUBDRV_AUTOSELECT && !COMPILE_TEST && !EXPERT
default y
menu "Media ancillary drivers"
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"
endmenu
endif # MEDIA_SUPPORT
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