# 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 if MEDIA_SUPPORT config MEDIA_SUPPORT_FILTER bool "Filter media drivers" 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 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" 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/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