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078ab3ea2c
The Request API is now merged to the kernel but the confidence on the stability of that API is not great, especially regarding the interaction with V4L2. Add a Kconfig option for the API, with a scary-looking warning. The patch itself disables request creation as well as does not advertise them as buffer flags. The driver requiring requests (cedrus) now depends on the Kconfig option as well. Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> Acked-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
256 lines
6.8 KiB
Plaintext
256 lines
6.8 KiB
Plaintext
#
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# Multimedia device configuration
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#
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config CEC_CORE
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tristate
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config CEC_NOTIFIER
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bool
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config CEC_PIN
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bool
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source "drivers/media/rc/Kconfig"
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menuconfig MEDIA_SUPPORT
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tristate "Multimedia support"
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depends on HAS_IOMEM
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help
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If you want to use Webcams, Video grabber devices and/or TV devices
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enable this option and other options below.
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Additional info and docs are available on the web at
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<https://linuxtv.org>
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if MEDIA_SUPPORT
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comment "Multimedia core support"
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#
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# Multimedia support - automatically enable V4L2 and DVB core
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#
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config MEDIA_CAMERA_SUPPORT
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bool "Cameras/video grabbers support"
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---help---
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Enable support for webcams and video grabbers.
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Say Y when you have a webcam or a video capture grabber board.
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config MEDIA_ANALOG_TV_SUPPORT
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bool "Analog TV support"
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---help---
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Enable analog TV support.
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Say Y when you have a TV board with analog support or with a
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hybrid analog/digital TV chipset.
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Note: There are several DVB cards that are based on chips that
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support both analog and digital TV. Disabling this option
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will disable support for them.
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config MEDIA_DIGITAL_TV_SUPPORT
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bool "Digital TV support"
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---help---
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Enable digital TV support.
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Say Y when you have a board with digital support or a board with
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hybrid digital TV and analog TV.
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config MEDIA_RADIO_SUPPORT
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bool "AM/FM radio receivers/transmitters support"
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---help---
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Enable AM/FM radio support.
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Additional info and docs are available on the web at
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<https://linuxtv.org>
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Say Y when you have a board with radio support.
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Note: There are several TV cards that are based on chips that
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support radio reception. Disabling this option will
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disable support for them.
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config MEDIA_SDR_SUPPORT
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bool "Software defined radio support"
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---help---
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Enable software defined radio support.
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Say Y when you have a software defined radio device.
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config MEDIA_CEC_SUPPORT
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bool "HDMI CEC support"
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---help---
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Enable support for HDMI CEC (Consumer Electronics Control),
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which is an optional HDMI feature.
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Say Y when you have an HDMI receiver, transmitter or a USB CEC
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adapter that supports HDMI CEC.
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source "drivers/media/cec/Kconfig"
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#
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# Media controller
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# Selectable only for webcam/grabbers, as other drivers don't use it
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#
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config MEDIA_CONTROLLER
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bool "Media Controller API"
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depends on MEDIA_CAMERA_SUPPORT || MEDIA_ANALOG_TV_SUPPORT || MEDIA_DIGITAL_TV_SUPPORT
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---help---
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Enable the media controller API used to query media devices internal
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topology and configure it dynamically.
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This API is mostly used by camera interfaces in embedded platforms.
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config MEDIA_CONTROLLER_DVB
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bool "Enable Media controller for DVB (EXPERIMENTAL)"
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depends on MEDIA_CONTROLLER && DVB_CORE
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---help---
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Enable the media controller API support for DVB.
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This is currently experimental.
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config MEDIA_CONTROLLER_REQUEST_API
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bool "Enable Media controller Request API (EXPERIMENTAL)"
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depends on MEDIA_CONTROLLER && STAGING_MEDIA
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default n
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---help---
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DO NOT ENABLE THIS OPTION UNLESS YOU KNOW WHAT YOU'RE DOING.
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This option enables the Request API for the Media controller and V4L2
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interfaces. It is currently needed by a few stateless codec drivers.
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There is currently no intention to provide API or ABI stability for
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this new API as of yet.
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#
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# Video4Linux support
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# Only enables if one of the V4L2 types (ATV, webcam, radio) is selected
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#
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config VIDEO_DEV
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tristate
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depends on MEDIA_SUPPORT
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depends on MEDIA_CAMERA_SUPPORT || MEDIA_ANALOG_TV_SUPPORT || MEDIA_RADIO_SUPPORT || MEDIA_SDR_SUPPORT
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default y
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config VIDEO_V4L2_SUBDEV_API
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bool "V4L2 sub-device userspace API"
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depends on VIDEO_DEV && MEDIA_CONTROLLER
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---help---
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Enables the V4L2 sub-device pad-level userspace API used to configure
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video format, size and frame rate between hardware blocks.
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This API is mostly used by camera interfaces in embedded platforms.
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source "drivers/media/v4l2-core/Kconfig"
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#
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# DVB Core
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# Only enables if one of DTV is selected
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#
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config DVB_CORE
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tristate
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depends on MEDIA_SUPPORT
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depends on MEDIA_DIGITAL_TV_SUPPORT
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depends on (I2C || I2C=n)
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default y
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select CRC32
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config DVB_MMAP
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bool "Enable DVB memory-mapped API (EXPERIMENTAL)"
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depends on DVB_CORE
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depends on VIDEO_V4L2=y || VIDEO_V4L2=DVB_CORE
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select VIDEOBUF2_VMALLOC
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default n
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help
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This option enables DVB experimental memory-mapped API, which
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reduces the number of context switches to read DVB buffers, as
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the buffers can use mmap() syscalls.
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Support for it is experimental. Use with care. If unsure,
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say N.
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config DVB_NET
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bool "DVB Network Support"
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default (NET && INET)
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depends on NET && INET && DVB_CORE
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help
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This option enables DVB Network Support which is a part of the DVB
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standard. It is used, for example, by automatic firmware updates used
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on Set-Top-Boxes. It can also be used to access the Internet via the
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DVB card, if the network provider supports it.
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You may want to disable the network support on embedded devices. If
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unsure say Y.
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# This Kconfig option is used by both PCI and USB drivers
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config TTPCI_EEPROM
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tristate
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depends on I2C
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default n
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source "drivers/media/dvb-core/Kconfig"
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comment "Media drivers"
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#
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# V4L platform/mem2mem drivers
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#
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source "drivers/media/usb/Kconfig"
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source "drivers/media/pci/Kconfig"
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source "drivers/media/platform/Kconfig"
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source "drivers/media/mmc/Kconfig"
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source "drivers/media/radio/Kconfig"
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comment "Supported FireWire (IEEE 1394) Adapters"
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depends on DVB_CORE && FIREWIRE
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source "drivers/media/firewire/Kconfig"
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# Common driver options
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source "drivers/media/common/Kconfig"
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comment "Media ancillary drivers (tuners, sensors, i2c, spi, frontends)"
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#
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# Ancillary drivers (tuners, i2c, spi, frontends)
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#
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config MEDIA_SUBDRV_AUTOSELECT
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bool "Autoselect ancillary drivers (tuners, sensors, i2c, spi, frontends)"
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depends on MEDIA_ANALOG_TV_SUPPORT || MEDIA_DIGITAL_TV_SUPPORT || MEDIA_CAMERA_SUPPORT || MEDIA_SDR_SUPPORT
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depends on HAS_IOMEM
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select I2C
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select I2C_MUX
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default y
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help
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By default, a media driver auto-selects all possible ancillary
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devices such as tuners, sensors, video encoders/decoders and
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frontends, that are used by any of the supported devices.
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This is generally the right thing to do, except when there
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are strict constraints with regards to the kernel size,
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like on embedded systems.
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Use this option with care, as deselecting ancillary drivers which
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are, in fact, necessary will result in the lack of the needed
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functionality for your device (it may not tune or may not have
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the needed demodulators).
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If unsure say Y.
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config MEDIA_ATTACH
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bool
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depends on MEDIA_ANALOG_TV_SUPPORT || MEDIA_DIGITAL_TV_SUPPORT || MEDIA_RADIO_SUPPORT
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depends on MODULES
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default MODULES
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source "drivers/media/i2c/Kconfig"
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source "drivers/media/spi/Kconfig"
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source "drivers/media/tuners/Kconfig"
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source "drivers/media/dvb-frontends/Kconfig"
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endif # MEDIA_SUPPORT
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