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TIER IV Automotive HDR Camera C1/C2 Device Driver

This repository contains the device driver for the TIER IV Automotive HDR Camera C1/C2.

If you want to use the official driver, please refer to the Installation and Usage section and proceed with the installation.

If you want to modify the driver, please refer to the How to create a package from source section.

For the simple image parameter tuning tool(t4cam-ctrl), please refer to the documentation here t4cam-ctrl.

Installation and Usage

  1. Download the latest release of the driver from the releases page.
  2. Follow the installation instructions provided in the quickstart guide.

Note for ADLINK ROSCube-X RQX-58G users:

The device type (i.e., C1 or C2) assignment is fixed at every GMSL2 port. The following table shows the default assignment:

overlay command \ GMSL2 port No. 1 2 3 4 5 6 7 8
TIERIV(Tier4) ISX021 GMSL2 Camera Device Tree Overlay C1 C1 C1 C1 C1 C1 C1 C1
TIERIV(Tier4) IMX490 GMSL2 Camera Device Tree Overlay C2 C2 C2 C2 C2 C2 C2 C2
TIERIV(Tier4) ISX021 IMX490 GMSL2 Camera Device Tree Overlay C1 C1 C2 C2 C1 C1 C2 C2

(e.g., If user executes $ sudo /opt/nvidia/jetson-io/config-by-hardware.py -n 2="TIERIV ISX021 GMSL2 Camera Device Tree Overlay" on the driver installation process, all ports are assigned for C1 cameras. Please see drivers/README.md for the detail of the overlay command.)

This assignment can be changed by the following steps:

  • Generate a dts file to describe user desired assignment

    $ cd drivers/tools/
    # Specify device type assignment from port #1 to #8 one by one
    $ python3 make_overlay_dbt.py c1 c1 c1 c1 c2 c2 c2 c2
    • Port #(2n-1) and #(2n), where n = [1, 2, 3, 4], must be the same assignment. If invalid assignments are specified, the script returns errors, otherwise a dts file will be created.
    • By the above example, a file named tier4-isx021-imx490-c1-c1-c2-c2-device-tree-overlay.dts will be created.
  • Generate dtbo from dts

    $ dtc -O dtb -o ${OVERLAY_DTBO_FILE} -@ ${OVERLAY_DTS_FILE}
    • ${OVERLAY_DTBO_FILE} indicates the string that file name extension is replaced from dts to dtbo.
      • e.g., tier4-isx021-imx490-c1-c1-c2-c2-device-tree-overlay.dtbo
    • ${OVERLAY_DTS_FILE} is the dts file generated at the above step.
  • Copy the result to appropriate directory and run configure

    $ sudo cp ${OVERLAY_DTBO_FILE} /boot/
    $ sudo fdtoverlay \
        -o /boot/kernel_tegra194-rqx-58g-user-custom.dtb \
        -i /boot/dtb/kernel_tegra194-rqx-58g.dtb \
        /boot/${OVERLAY_DTBO_FILE}
  • Shutdown and reboot the system

    $ sudo shutdown -h now

    Then, reboot (turn on) the system manually.

How to create a package from source

Preparation

$> sudo apt update
$> sudo apt install make build-essential debhelper debmake devscripts dkms 

Create debian-dkms package

$> dpkg-buildpackage -b -rfakeroot -us -uc

You can confirm the package file with the following command.

$> ls ../*deb

Contribution

We welcome contributions to the Automotive HDR Camera Device Driver. If you have a bug fix or new feature that you would like to contribute, please submit an issue or a pull request.

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