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 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 	  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
264