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# SPDX-License-Identifier: GPL-2.0-only
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config VIDEO_VIVID
tristate "Virtual Video Test Driver"
media: Kconfig: cleanup VIDEO_DEV dependencies
media Kconfig has two entries associated to V4L API:
VIDEO_DEV and VIDEO_V4L2.
On Kernel 2.6.x, there were two V4L APIs, each one with its own flag.
VIDEO_DEV were meant to:
1) enable Video4Linux and make its Kconfig options to appear;
2) it makes the Kernel build the V4L core.
while VIDEO_V4L2 where used to distinguish between drivers that
implement the newer API and drivers that implemented the former one.
With time, such meaning changed, specially after the removal of
all V4L version 1 drivers.
At the current implementation, VIDEO_DEV only does (1): it enables
the media options related to V4L, that now has:
menu "Video4Linux options"
visible if VIDEO_DEV
source "drivers/media/v4l2-core/Kconfig"
endmenu
but it doesn't affect anymore the V4L core drivers.
The rationale is that the V4L2 core has a "soft" dependency
at the I2C bus, and now requires to select a number of other
Kconfig options:
config VIDEO_V4L2
tristate
depends on (I2C || I2C=n) && VIDEO_DEV
select RATIONAL
select VIDEOBUF2_V4L2 if VIDEOBUF2_CORE
default (I2C || I2C=n) && VIDEO_DEV
In the past, merging them would be tricky, but it seems that it is now
possible to merge those symbols, in order to simplify V4L dependencies.
Let's keep VIDEO_DEV, as this one is used on some make *defconfig
configurations.
Suggested-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
Reviewed-by: Neil Armstrong <narmstrong@baylibre.com> # for meson-vdec & meson-ge2d
Acked-by: Andrzej Pietrasiewicz <andrzejtp2010@gmail.com>
Acked-by: Łukasz Stelmach <l.stelmach@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
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depends on VIDEO_DEV && !SPARC32 && !SPARC64 && FB
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depends on HAS_DMA
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select FONT_SUPPORT
select FONT_8x16
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select FB_CFB_FILLRECT
select FB_CFB_COPYAREA
select FB_CFB_IMAGEBLIT
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select VIDEOBUF2_VMALLOC
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select VIDEOBUF2_DMA_CONTIG
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select VIDEO_V4L2_TPG
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select MEDIA_CONTROLLER
select MEDIA_CONTROLLER_REQUEST_API
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help
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Enables a virtual video driver. This driver emulates a webcam,
TV, S-Video and HDMI capture hardware, including VBI support for
the SDTV inputs. Also video output, VBI output, radio receivers,
transmitters and software defined radio capture is emulated.
It is highly configurable and is ideal for testing applications.
Error injection is supported to test rare errors that are hard
to reproduce in real hardware.
Say Y here if you want to test video apps or debug V4L devices.
When in doubt, say N.
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2016-02-05 17:44:21 +03:00
config VIDEO_VIVID_CEC
bool "Enable CEC emulation support"
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depends on VIDEO_VIVID
select CEC_CORE
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help
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When selected the vivid module will emulate the optional
HDMI CEC feature.
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config VIDEO_VIVID_MAX_DEVS
int "Maximum number of devices"
depends on VIDEO_VIVID
default "64"
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help
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This allows you to specify the maximum number of devices supported
by the vivid driver.
