Toshiba TC358743 Linux driver for Jetson

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TC358743 features

Reference: Toshiba TC358743 bridge chip

The Toshiba TC358743 is an HDMI 1.4 to MIPI CSI-2 1.01 bridge chip capable of handling video data up to 1080P at 60 fps.

* Tested resolutions are 1280x720 at 30fps and 60fps, 1920x1080 at 30fps. Tested format is UYVY.

* The TC358743 driver supports 2 and 4 lanes configuration for the given resolutions.

Build kernel using Jetpack and tc358743 driver

Jetson TX1/TX2

Building kernel sources

In order to build the kernel sources for TX1/TX2 you can follow the next guide: Build_Kernel

Enable driver

Once you are following there is a step make menuconfig it allows you to enable the tc358743 driver as built-in.

make O=$TEGRA_KERNEL_OUT menuconfig

Select the driver. The menu option is located:

-> Device Drivers
  -> Multimedia support (MEDIA_SUPPORT [=y])
    -> Encoders, decoders, sensors and other helper chips
       <*> Toshiba TC358743 decoder

Jetson Nano

Building kernel sources

In order to build the kernel sources for the Jetson Nano you can follow the next guide: Build_Kernel

Enable driver

Once you are following the guide there is a step make menuconfig, it allows you to enable the tc358743 driver as built-in.

make ARCH=arm64 O=$KERNEL_OUT menuconfig

Select the driver. The menu option is located:

-> Device Drivers
  -> Multimedia support (MEDIA_SUPPORT [=y])
    -> NVIDIA overlay Encoders, decoders, sensors and other helper chips
       <*> Toshiba TC358743 decoder

Test your Kernel image using Jetpack root file system

Check kernel version. At this moment you can test the image created in order to see the new kernel is working correctly. You have to see a new kernel version with the correct date of compilation:

Jetson TX1/TX2

uname -a
Linux tegra-ubuntu 4.4.38 #21 SMP PREEMPT Thu May 9 14:30:09 CST 2019 aarch64 aarch64 aarch64 GNU/Linux

J100 TX2

You can see that the driver is probed, execute the line: dmesg | grep "(Tegra I2C adapter)"

Expected output:

[    2.683236] tc358743 1-000f: tc358743 found @ 0xf (Tegra I2C adapter)

video devices created:

ls /dev/video*
/dev/video0  

Jetson Nano

uname -a 
Linux nvidia 4.9.140 #6 SMP PREEMPT Tue May 7 16:25:38 CST 2019 aarch64 aarch64 aarch64 GNU/Linux

Nano EVM kit

You can see that the driver is probed, execute the line: dmesg | grep "(Tegra I2C adapter)"

Expected output:

nvidia@nvidia:~$ dmesg | grep "(Tegra I2C adapter)"
[    4.226382] tc358743 6-000f: tc358743 found @ 0xf (Tegra I2C adapter)

video devices created:

ls /dev/video*
/dev/video0 

Examples

GStreamer TX1/TX2/Nano

720p@30 - 720p@60

gst-launch-1.0 v4l2src device=/dev/video0 num-buffers=5 ! 'video/x-raw,format=UYVY,width=1280,height=720' ! \
filesink location=test.yuv

gst-launch-1.0 v4l2src device=/dev/video0 ! 'video/x-raw,format=UYVY,width=1280,height=720' ! \
nvvidconv ! 'video/x-raw(memory:NVMM),format=I420,width=1280,height=720' ! nvoverlaysink

gst-launch-1.0 v4l2src device=/dev/video0 ! 'video/x-raw,format=UYVY,width=1280,height=720' ! \
nvvidconv ! omxh264enc ! mpegtsmux ! filesink location=test.ts

1080p@30

gst-launch-1.0 v4l2src device=/dev/video0 num-buffers=5 ! 'video/x-raw,format=UYVY,width=1920,height=1080' ! \
filesink location=test.yuv

gst-launch-1.0 v4l2src device=/dev/video0 ! 'video/x-raw,format=UYVY,width=1920,height=1080' ! \
nvvidconv ! 'video/x-raw(memory:NVMM),format=I420,width=1920,height=1080' ! nvoverlaysink

gst-launch-1.0 v4l2src device=/dev/video0 ! 'video/x-raw,format=UYVY,width=1920,height=1080' ! \
nvvidconv ! omxh264enc ! mpegtsmux ! filesink location=test.ts

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