Commit 3d8a97ea authored by Sowjanya Komatineni's avatar Sowjanya Komatineni Committed by Thierry Reding
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media: tegra-video: Add Tegra210 Video input driver 



Tegra210 contains a powerful Video Input (VI) hardware controller
which can support up to 6 MIPI CSI camera sensors.

Each Tegra CSI port can be one-to-one mapped to VI channel and can
capture from an external camera sensor connected to CSI or from
built-in test pattern generator.

Tegra210 supports built-in test pattern generator from CSI to VI.

This patch adds a V4L2 capture driver with a media interface for
Tegra210 built-in CSI to VI test pattern generator.

This patch includes TPG support only and all the video pipeline
configuration happens through the video device node.

Acked-by: default avatarThierry Reding <treding@nvidia.com>
Signed-off-by: default avatarSowjanya Komatineni <skomatineni@nvidia.com>
Reviewed-by: default avatarDmitry Osipenko <digetx@gmail.com>
Acked-by: default avatarHans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: default avatarThierry Reding <treding@nvidia.com>
parent 612c341c

drivers/staging/media/Kconfig

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@@ -34,6 +34,8 @@ source "drivers/staging/media/sunxi/Kconfig" 


source "drivers/staging/media/tegra-vde/Kconfig"



source "drivers/staging/media/tegra-video/Kconfig"



source "drivers/staging/media/ipu3/Kconfig"



source "drivers/staging/media/soc_camera/Kconfig"

drivers/staging/media/Makefile

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@@ -4,6 +4,7 @@ obj-$(CONFIG_VIDEO_IMX_MEDIA) += imx/ 
obj-$(CONFIG_VIDEO_MESON_VDEC)	+= meson/vdec/

obj-$(CONFIG_VIDEO_OMAP4)	+= omap4iss/

obj-$(CONFIG_VIDEO_SUNXI)	+= sunxi/

obj-$(CONFIG_VIDEO_TEGRA)	+= tegra-video/

obj-$(CONFIG_TEGRA_VDE)		+= tegra-vde/

obj-$(CONFIG_VIDEO_HANTRO)	+= hantro/

obj-$(CONFIG_VIDEO_IPU3_IMGU)	+= ipu3/

drivers/staging/media/tegra-video/Kconfig

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# SPDX-License-Identifier: GPL-2.0-only

config VIDEO_TEGRA

	tristate "NVIDIA Tegra VI driver"

	depends on TEGRA_HOST1X || COMPILE_TEST

	select VIDEO_V4L2

	select MEDIA_CONTROLLER

	select VIDEOBUF2_DMA_CONTIG

	help

	  Choose this option if you have an NVIDIA Tegra SoC.



	  To compile this driver as a module, choose M here: the module

	  will be called tegra-video.

drivers/staging/media/tegra-video/Makefile

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# SPDX-License-Identifier: GPL-2.0

tegra-video-objs := \

		video.o \

		vi.o \

		csi.o



tegra-video-$(CONFIG_ARCH_TEGRA_210_SOC) += tegra210.o

obj-$(CONFIG_VIDEO_TEGRA) += tegra-video.o

drivers/staging/media/tegra-video/TODO

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TODO list

* Currently driver supports Tegra build-in TPG only with direct media links

  from CSI to VI. Add kernel config CONFIG_VIDEO_TEGRA_TPG and update the

  driver to do TPG Vs Sensor media links based on CONFIG_VIDEO_TEGRA_TPG.

* Add real camera sensor capture support.

* Add Tegra CSI MIPI pads calibration.

* Add MIPI clock Settle time computation based on the data rate.

* Add support for Ganged mode.

* Add RAW10 packed video format support to Tegra210 video formats.

* Add support for suspend and resume.

* Make sure v4l2-compliance tests pass with all of the above implementations.

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