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V4L2 mode for Raspberry Pi (view source)

Revision as of 10:20, 7 September 2021

4,965 bytes added ,  10:20, 7 September 2021
→‎Confirm the piOS version of your raspberry Pi
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<code>sudo ./install_driver.sh [camera module]</code>
 
<code>sudo ./install_driver.sh [camera module]</code>
   −
camera module：could be veye327,csimx307,cssc132.
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camera module：could be veye327,csimx307,cssc132,veyecam2m.
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'''Note: veyecam2m is a new version driver that can replace veye327 and supports all modules of the VEYE series with 200W resolution.'''
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Note: For VEYE-MIPI-IMX327S or VEYE-MIPI-IMX462, please make sure '''hdver''' must >= 0x5.
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http://wiki.veye.cc/index.php/VEYE-MIPI-IMX327S_version_log
    
==== Uninstall the driver ====
 
==== Uninstall the driver ====
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=== Gstreamer usage Demo ===
 
=== Gstreamer usage Demo ===
 
<code>export DISPLAY=:0</code>
 
<code>export DISPLAY=:0</code>
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* install gstreamer
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<code>sudo apt-get install gstreamer1.0-tools</code>
    
* Snap a picture (VEYE-MIPI-327,CS-MIPI-IMX307 @1080p mode)
 
* Snap a picture (VEYE-MIPI-327,CS-MIPI-IMX307 @1080p mode)
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[[CS-MIPI-X for Raspberry Pi#Video Control Toolkits Manual|CS Series Video Control Toolkits Manual]]
 
[[CS-MIPI-X for Raspberry Pi#Video Control Toolkits Manual|CS Series Video Control Toolkits Manual]]
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=== Notes for CM4 ===
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Cm4 supports the use of two cameras at the same time. Following above steps will only be able to use CAM1. To use two cameras, follow the following steps:
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==== Upgrade dt-blob.bin ====
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<code>wget <nowiki>https://www.raspberrypi.org/documentation/hardware/computemodule/dt-blob-dualcam.bin</nowiki></code>
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<code>sudo cp dt-blob-dualcam.bin /boot/dt-blob.bin</code>
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==== Upgrade dual camera version dtbo file ====
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Use csimx307,5.10.17-v7l+ kernel as an example：
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<code>sudo cp raspberrypi_v4l2/release/driver_bin/5.10.17-v7l+/csimx307-dual-cm4.dtbo /boot/overlays/csimx307.dtbo</code>
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<code>sudo reboot</code>
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==== Device node description ====
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The CM4 module uses two I2C channels to communicate with the two cameras respectively.
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{| class="wikitable"
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! description
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!i2c bus num
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!video node
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|-
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|CAM0
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|0
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|video0
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|-
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|CAM1
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|10
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|video2
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|}
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Note: If there is only one camera, video node is always video0.
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==== Gstreamer usage Demo ====
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<code>export DISPLAY=:0</code>
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*CAM0 preview(VEYE-MIPI-327,CS-MIPI-IMX307 @1080p mode)
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<code>gst-launch-1.0 v4l2src device=/dev/video0 ! "video/x-raw,format=(string)UYVY, width=(int)1920, height=(int)1080,framerate=(fraction)30/1" ! videoconvert ! fpsdisplaysink videosink=autovideosink sync=false text-overlay=false -v</code>
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*CAM1 preview(VEYE-MIPI-327,CS-MIPI-IMX307 @1080p mode)
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<code>gst-launch-1.0 v4l2src device=/dev/video2 ! "video/x-raw,format=(string)UYVY, width=(int)1920, height=(int)1080,framerate=(fraction)30/1" ! videoconvert ! fpsdisplaysink videosink=autovideosink sync=false text-overlay=false -v</code>
 
=== Source code cross compilation ===
 
=== Source code cross compilation ===
 
The main resources in this section are the [https://www.raspberrypi.org/documentation/linux/kernel/building.md official piOS building method]. We use the method of cross-compilation, and the 5.4.72 version of 32bitOS is taken as an example.
 
The main resources in this section are the [https://www.raspberrypi.org/documentation/linux/kernel/building.md official piOS building method]. We use the method of cross-compilation, and the 5.4.72 version of 32bitOS is taken as an example.
    
The following operations are done on ubuntu PC.
 
The following operations are done on ubuntu PC.
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==== Build cross-compilation environment on Ubuntu 64-bitoperating system) ====
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<code>sudo apt install git bc bison flex libssl-dev make libc6-dev libncurses5-dev</code>
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<code>sudo apt install crossbuild-essential-armhf</code>
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==== Download the standard version of the piOS source code ====
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===== Confirm the piOS version of your raspberry Pi =====
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* <code>Release version</code>
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<code>$ uname -a</code>
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<code>Linux raspberrypi 5.4.72-v7l+ #1356 SMP Thu Oct 22 13:57:51 BST 2020 armv7l GNU/Linux</code>
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* <code>Code tag</code>
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<code>$ cp /usr/share/doc/raspberrypi-bootloader/changelog.Debian.gz ./</code>
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<code>gunzip changelog.Debian.gz</code>
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Check the top lines and you will know the tag.
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===== There are two ways to get the source code of the version you want: =====
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# using git to clone the corresponding branch and checkout the corresponding tag.
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<code>git clone --branch rpi-5.4.y <nowiki>https://github.com/raspberrypi/linux</nowiki></code>
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<code>git checkout raspberrypi-kernel_1.20201022-1</code>
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''PS: Please replace the above two commands with your own corresponding versions.''
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2. Manually download the version code of the corresponding tag directly from the link below.
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https://github.com/raspberrypi/linux/tags
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==== Patch our  code to kernel ====
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*Driver source code
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camera driver path is ： linux/drivers/media/i2c，copy our camera module drivers to this path.
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*Modify the the Makefile and Kconfig files
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Modify the Config and Makefile in the same path，add the corresponding camera driver.
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*dts file
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dts file path is ：linux/arch/arm/boot/dts/overlays，copy our [camera]-overlay.dts files to this path.
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*Modify dts Makefile
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Modify the Makefile in the same path，add the corresponding dts compilation option.
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==== Building ====
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==== Preparing ====
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<code>export ARCH=arm</code>
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<code>export CROSS_COMPILE=arm-linux-gnueabihf-</code>
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* Raspberry Pi 1, Pi Zero, Pi Zero W, and Compute Module default build configuration
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<code>KERNEL=kernel</code>
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<code>make ARCH=arm CROSS_COMPILE=arm-linux-gnueabihf- bcmrpi_defconfig</code>
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* Raspberry Pi 2, Pi 3, Pi 3+, and Compute Module 3 default build configuration
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<code>KERNEL=kernel7</code>
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<code>make ARCH=arm CROSS_COMPILE=arm-linux-gnueabihf- bcm2709_defconfig</code>
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* Raspberry Pi 4 default build configuration
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<code>KERNEL=kernel7l</code>
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<code>make ARCH=arm CROSS_COMPILE=arm-linux-gnueabihf- bcm2711_defconfig</code>
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==== Add compilation options ====
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<code>make ARCH=arm CROSS_COMPILE=arm-linux-gnueabihf- menuconfig</code>
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Add the compilation options by the corresponding camera module, for 5.4 version kernel the path is driver-- > multimedia-- > i2C.
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For 5.10 version kernel,the path is Device Drivers --> Multimedia Support --> Media ancillary drivers --> Camera sensor devices.
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===== Build =====
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<code>make ARCH=arm CROSS_COMPILE=arm-linux-gnueabihf- zImage modules dtbs -j4</code>
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=== References ===
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<nowiki>https://www.raspberrypi.org/documentation/linux/kernel/building.md</nowiki>
Retrieved from "http://wiki.veye.cc/index.php/Special:MobileDiff/3579...4308"

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