xref: /openbmc/linux/drivers/media/Kconfig (revision 22b6e7f3) 
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#
9source "drivers/media/rc/Kconfig"
10source "drivers/media/cec/Kconfig"
11
12menuconfig 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
23if MEDIA_SUPPORT
24
25config 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
40config 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
62menu "Media device types"
63
64#
65# Multimedia support - automatically enable V4L2 and DVB core
66#
67config 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
76config 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
90config 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
100config 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
116config 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
125config 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
139config 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.
154endmenu # media device types
155
156
157menu "Media core support"
158	visible if !MEDIA_SUPPORT_FILTER
159
160config 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
170config 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
184config DVB_CORE
185	tristate "DVB Core"
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
194endmenu # Media core support
195
196#
197# Extra per-media API core functionality
198
199menu "Video4Linux options"
200	visible if VIDEO_DEV
201
202source "drivers/media/v4l2-core/Kconfig"
203endmenu
204
205menu "Media controller options"
206	visible if MEDIA_CONTROLLER
207
208source "drivers/media/mc/Kconfig"
209endmenu
210
211menu "Digital TV options"
212	visible if DVB_CORE
213
214source "drivers/media/dvb-core/Kconfig"
215endmenu
216
217menu "Media drivers"
218
219comment "Drivers filtered as selected at 'Filter media drivers'"
220	depends on MEDIA_SUPPORT_FILTER
221
222comment "Media drivers"
223
224source "drivers/media/usb/Kconfig"
225source "drivers/media/pci/Kconfig"
226source "drivers/media/radio/Kconfig"
227
228if MEDIA_PLATFORM_SUPPORT
229source "drivers/media/platform/Kconfig"
230source "drivers/media/mmc/Kconfig"
231endif
232
233if MEDIA_TEST_SUPPORT
234source "drivers/media/test-drivers/Kconfig"
235endif
236
237source "drivers/media/firewire/Kconfig"
238
239# Common driver options
240source "drivers/media/common/Kconfig"
241
242endmenu
243
244#
245# Ancillary drivers (tuners, i2c, spi, frontends)
246#
247
248config MEDIA_HIDE_ANCILLARY_SUBDRV
249	bool
250	depends on MEDIA_SUBDRV_AUTOSELECT && !COMPILE_TEST && !EXPERT
251	default y
252
253menu "Media ancillary drivers"
254
255config 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
261source "drivers/media/i2c/Kconfig"
262source "drivers/media/spi/Kconfig"
263source "drivers/media/tuners/Kconfig"
264source "drivers/media/dvb-frontends/Kconfig"
265
266endmenu
267
268endif # MEDIA_SUPPORT
269