# 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 if MEDIA_SUPPORT config MEDIA_SUPPORT_FILTER bool "Filter media drivers" default y if !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 "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 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 "Digital TV" 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 "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 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 "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_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 to see such devices. config MEDIA_TEST_SUPPORT bool "Test drivers" 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 depends on (I2C || I2C=n) select RATIONAL select VIDEOBUF2_V4L2 if VIDEOBUF2_CORE 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 comment "Media drivers" source "drivers/media/usb/Kconfig" source "drivers/media/pci/Kconfig" source "drivers/media/radio/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" # Common driver options source "drivers/media/common/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