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 !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 to 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 These drivers should not be used on production kernels, but 145 can be useful on debug ones. This option enables several dummy drivers 146 that simulate real hardware. Very useful to test userspace 147 applications and to validate if the subsystem core 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 depends on (I2C || I2C=n) 164 select RATIONAL 165 select VIDEOBUF2_V4L2 if VIDEOBUF2_CORE 166 help 167 Enables the V4L2 API, used by cameras, analog TV, video grabbers, 168 radio devices and by some input devices. 169 170 config MEDIA_CONTROLLER 171 bool "Media Controller API" 172 default MEDIA_CAMERA_SUPPORT || MEDIA_ANALOG_TV_SUPPORT || MEDIA_DIGITAL_TV_SUPPORT || MEDIA_PLATFORM_SUPPORT 173 help 174 Enable the media controller API used to query media devices internal 175 topology and configure it dynamically. 176 177 This API is mostly used by camera interfaces in embedded platforms. 178 179 # 180 # DVB Core 181 # Only enables if one of DTV is selected 182 # 183 184 config DVB_CORE 185 tristate 186 depends on MEDIA_DIGITAL_TV_SUPPORT 187 depends on (I2C || I2C=n) 188 default MEDIA_DIGITAL_TV_SUPPORT 189 select CRC32 190 help 191 Enables the DVB API, used by Digital TV devices. Supports several 192 standards, including DVB, ATSC, ISDB and CMDB. 193 194 endmenu # Media core support 195 196 # 197 # Extra per-media API core functionality 198 199 menu "Video4Linux options" 200 visible if VIDEO_DEV 201 202 source "drivers/media/v4l2-core/Kconfig" 203 endmenu 204 205 menu "Media controller options" 206 visible if MEDIA_CONTROLLER 207 208 source "drivers/media/mc/Kconfig" 209 endmenu 210 211 menu "Digital TV options" 212 visible if DVB_CORE 213 214 source "drivers/media/dvb-core/Kconfig" 215 endmenu 216 217 menu "Media drivers" 218 219 comment "Drivers filtered as selected at 'Filter media drivers'" 220 depends on MEDIA_SUPPORT_FILTER 221 222 comment "Media drivers" 223 224 source "drivers/media/usb/Kconfig" 225 source "drivers/media/pci/Kconfig" 226 source "drivers/media/radio/Kconfig" 227 228 if MEDIA_PLATFORM_SUPPORT 229 source "drivers/media/platform/Kconfig" 230 source "drivers/media/mmc/Kconfig" 231 endif 232 233 if MEDIA_TEST_SUPPORT 234 source "drivers/media/test-drivers/Kconfig" 235 endif 236 237 source "drivers/media/firewire/Kconfig" 238 239 # Common driver options 240 source "drivers/media/common/Kconfig" 241 242 endmenu 243 244 # 245 # Ancillary drivers (tuners, i2c, spi, frontends) 246 # 247 248 config MEDIA_HIDE_ANCILLARY_SUBDRV 249 bool 250 depends on MEDIA_SUBDRV_AUTOSELECT && !COMPILE_TEST && !EXPERT 251 default y 252 253 menu "Media ancillary drivers" 254 255 config MEDIA_ATTACH 256 bool 257 depends on MEDIA_ANALOG_TV_SUPPORT || MEDIA_DIGITAL_TV_SUPPORT || MEDIA_RADIO_SUPPORT 258 depends on MODULES 259 default MODULES 260 261 source "drivers/media/i2c/Kconfig" 262 source "drivers/media/spi/Kconfig" 263 source "drivers/media/tuners/Kconfig" 264 source "drivers/media/dvb-frontends/Kconfig" 265 266 endmenu 267 268 endif # MEDIA_SUPPORT 269