drivers/media/Kconfig - linux - Git at Google

 # 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
	# 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