drivers/media/Kconfig

   1 # SPDX-License-Identifier: GPL-2.0-only
   2 #
   3 # Multimedia device configuration
   4 #
   5
   6 #
   7 # NOTE: CEC and Remote Controller support should not depend on MEDIA_SUPPORT
   8 #
   9 source "drivers/media/rc/Kconfig"
  10 source "drivers/media/cec/Kconfig"
  11
  12 menuconfig MEDIA_SUPPORT
  13         tristate "Multimedia support"
  14         depends on HAS_IOMEM
  15         help
  16           If you want to use media devices, including Webcams, Video grabber
  17           devices and/or TV devices, V4L2 codecs, etc, enable this option
  18           and other options below.
  19
  20           Additional info and docs are available on the web at
  21           <https://linuxtv.org>
  22
  23 if MEDIA_SUPPORT
  24
  25 config MEDIA_SUPPORT_FILTER
  26         bool "Filter media drivers"
  27         default y if !EMBEDDED && !EXPERT
  28         help
  29            Configuring the media subsystem can be complex, as there are
  30            hundreds of drivers and other config options.
  31
  32            This menu offers option that will help the Kernel's config
  33            system to hide drivers that are out of the scope of the
  34            user needs, and disabling core support for unused APIs.
  35
  36            If not selected, all non-optional media core functionality
  37            needed to support media drivers will be enabled. Also, all
  38            media device drivers should be shown.
  39
  40 config MEDIA_SUBDRV_AUTOSELECT
  41         bool "Autoselect ancillary drivers (tuners, sensors, i2c, spi, frontends)"
  42         depends on HAS_IOMEM
  43         select I2C
  44         select I2C_MUX
  45         default y if MEDIA_SUPPORT_FILTER
  46         help
  47           By default, a media driver auto-selects all possible ancillary
  48           devices such as tuners, sensors, video encoders/decoders and
  49           frontends, that are used by any of the supported devices.
  50
  51           This is generally the right thing to do, except when there
  52           are strict constraints with regards to the kernel size,
  53           like on embedded systems.
  54
  55           Use this option with care, as deselecting ancillary drivers which
  56           are, in fact, necessary will result in the lack of the needed
  57           functionality for your device (it may not tune or may not have
  58           the needed demodulators).
  59
  60           If unsure say Y.
  61
  62 menu "Media device types"
  63
  64 #
  65 # Multimedia support - automatically enable V4L2 and DVB core
  66 #
  67 config MEDIA_CAMERA_SUPPORT
  68         bool
  69         prompt "Cameras and video grabbers" if MEDIA_SUPPORT_FILTER
  70         default y if !MEDIA_SUPPORT_FILTER
  71         help
  72           Enable support for webcams and video grabbers.
  73
  74           Say Y when you have a webcam or a video capture grabber board.
  75
  76 config MEDIA_ANALOG_TV_SUPPORT
  77         bool
  78         prompt "Analog TV" if MEDIA_SUPPORT_FILTER
  79         default y if !MEDIA_SUPPORT_FILTER
  80         help
  81           Enable analog TV support.
  82
  83           Say Y when you have a TV board with analog support or with a
  84           hybrid analog/digital TV chipset.
  85
  86           Note: There are several DVB cards that are based on chips that
  87                 support both analog and digital TV. Disabling this option
  88                 will disable support for them.
  89
  90 config MEDIA_DIGITAL_TV_SUPPORT
  91         bool
  92         prompt "Digital TV" if MEDIA_SUPPORT_FILTER
  93         default y if !MEDIA_SUPPORT_FILTER
  94         help
  95           Enable digital TV support.
  96
  97           Say Y when you have a board with digital support or a board with
  98           hybrid digital TV and analog TV.
  99
 100 config MEDIA_RADIO_SUPPORT
 101         bool
 102         prompt "AM/FM radio receivers/transmitters" if MEDIA_SUPPORT_FILTER
 103         default y if !MEDIA_SUPPORT_FILTER
 104         help
 105           Enable AM/FM radio support.
 106
 107           Additional info and docs are available on the web at
 108           <https://linuxtv.org>
 109
 110           Say Y when you have a board with radio support.
 111
 112           Note: There are several TV cards that are based on chips that
 113                 support radio reception. Disabling this option will
 114                 disable support for them.
 115
 116 config MEDIA_SDR_SUPPORT
 117         bool
 118         prompt "Software defined radio" if MEDIA_SUPPORT_FILTER
 119         default y if !MEDIA_SUPPORT_FILTER
 120         help
 121           Enable software defined radio support.
 122
 123           Say Y when you have a software defined radio device.
 124
 125 config MEDIA_PLATFORM_SUPPORT
 126         bool
 127         prompt "Platform-specific devices" if MEDIA_SUPPORT_FILTER
 128         default y if !MEDIA_SUPPORT_FILTER
 129         help
 130           Enable support for complex cameras, codecs, and other hardware
 131           that are integrated at the CPU, GPU or on Image Signalling Processor
 132           and don't use PCI, USB or Firewire buses.
 133
 134           This is found on Embedded hardware (SoC), on V4L2 codecs and
 135           on some GPU and newer CPU chipsets.
 136
 137           Say Y when you want to be able so see such devices.
 138
 139 config MEDIA_TEST_SUPPORT
 140         bool
 141         prompt "Test drivers" if MEDIA_SUPPORT_FILTER
 142         default y if !MEDIA_SUPPORT_FILTER
 143         help
 144           Those drivers should not be used on production Kernels, but
 145           can be useful on debug ones. It enables several dummy drivers
 146           that simulate a real hardware. Very useful to test userspace
 147           applications and to validate if the subsystem core is doesn't
 148           have regressions.
 149
 150           Say Y if you want to use some virtual test driver.
 151
 152           In case of doubts, say N.
 153           Say Y when you have a software defined radio device.
 154 endmenu # media device types
 155
 156
 157 menu "Media core support"
 158         visible if !MEDIA_SUPPORT_FILTER
 159
 160 config VIDEO_DEV
 161         tristate "Video4Linux core"
 162         default MEDIA_CAMERA_SUPPORT || MEDIA_ANALOG_TV_SUPPORT || MEDIA_RADIO_SUPPORT || MEDIA_SDR_SUPPORT || MEDIA_PLATFORM_SUPPORT || MEDIA_TEST_SUPPORT
 163         help
 164           Enables the V4L2 API, used by cameras, analog TV, video grabbers,
 165           radio devices and by some input devices.
 166
 167 config MEDIA_CONTROLLER
 168         bool "Media Controller API"
 169         default MEDIA_CAMERA_SUPPORT || MEDIA_ANALOG_TV_SUPPORT || MEDIA_DIGITAL_TV_SUPPORT || MEDIA_PLATFORM_SUPPORT
 170         help
 171           Enable the media controller API used to query media devices internal
 172           topology and configure it dynamically.
 173
 174           This API is mostly used by camera interfaces in embedded platforms.
 175
 176 #
 177 # DVB Core
 178 #       Only enables if one of DTV is selected
 179 #
 180
 181 config DVB_CORE
 182         tristate
 183         depends on MEDIA_DIGITAL_TV_SUPPORT
 184         depends on (I2C || I2C=n)
 185         default MEDIA_DIGITAL_TV_SUPPORT
 186         select CRC32
 187         help
 188           Enables the DVB API, used by Digital TV devices. Supports several
 189           standards, including DVB, ATSC, ISDB and CMDB.
 190
 191 endmenu # Media core support
 192
 193 #
 194 # Extra per-media API core functionality
 195
 196 menu "Video4Linux options"
 197         visible if VIDEO_DEV
 198
 199 source "drivers/media/v4l2-core/Kconfig"
 200 endmenu
 201
 202 menu "Media controller options"
 203         visible if MEDIA_CONTROLLER
 204
 205 source "drivers/media/mc/Kconfig"
 206 endmenu
 207
 208 menu "Digital TV options"
 209         visible if DVB_CORE
 210
 211 source "drivers/media/dvb-core/Kconfig"
 212 endmenu
 213
 214 menu "Media drivers"
 215
 216 comment "Drivers filtered as selected at 'Filter media drivers'"
 217         depends on MEDIA_SUPPORT_FILTER
 218
 219 source "drivers/media/usb/Kconfig"
 220 source "drivers/media/pci/Kconfig"
 221 source "drivers/media/radio/Kconfig"
 222
 223 # Common driver options
 224 source "drivers/media/common/Kconfig"
 225
 226 if MEDIA_PLATFORM_SUPPORT
 227 source "drivers/media/platform/Kconfig"
 228 source "drivers/media/mmc/Kconfig"
 229 endif
 230
 231 if MEDIA_TEST_SUPPORT
 232 source "drivers/media/test-drivers/Kconfig"
 233 endif
 234
 235 source "drivers/media/firewire/Kconfig"
 236
 237 endmenu
 238
 239 #
 240 # Ancillary drivers (tuners, i2c, spi, frontends)
 241 #
 242
 243 config MEDIA_HIDE_ANCILLARY_SUBDRV
 244         bool
 245         depends on MEDIA_SUBDRV_AUTOSELECT && !COMPILE_TEST && !EXPERT
 246         default y
 247
 248 menu "Media ancillary drivers"
 249
 250 config MEDIA_ATTACH
 251         bool
 252         depends on MEDIA_ANALOG_TV_SUPPORT || MEDIA_DIGITAL_TV_SUPPORT || MEDIA_RADIO_SUPPORT
 253         depends on MODULES
 254         default MODULES
 255
 256 source "drivers/media/i2c/Kconfig"
 257 source "drivers/media/spi/Kconfig"
 258 source "drivers/media/tuners/Kconfig"
 259 source "drivers/media/dvb-frontends/Kconfig"
 260
 261 endmenu
 262
 263 endif # MEDIA_SUPPORT