Arducam 16mp camera, Sony IMX519

[mgineer85]

Arducam 16mp camera is supported by native Raspberry Pi Bullseye driver since kernel 6.1.19.
Libcamera is not yet updated, so the tuning file imx519.json is missing for autofocus. The error message is below:

me@host:~ $ libcamera-hello
[0:01:51.958583846] [993]  INFO Camera camera_manager.cpp:299 libcamera v0.0.4+22-923f5d70
[0:01:52.064510816] [994]  INFO RPI raspberrypi.cpp:1476 Registered camera /base/soc/i2c0mux/i2c@1/imx519@1a to Unicam device /dev/media2 and ISP device /dev/media0
[0:01:52.066342922] [993]  INFO Camera camera.cpp:1028 configuring streams: (0) 2328x1748-YUV420
[0:01:52.067066328] [994]  INFO RPI raspberrypi.cpp:851 Sensor: /base/soc/i2c0mux/i2c@1/imx519@1a - Selected sensor format: 2328x1748-SRGGB10_1X10 - Selected unicam format: 2328x1748-pRAA
[0:01:52.097574194] [998]  WARN IPARPI raspberrypi.cpp:801 Could not set AF_MODE - no AF algorithm
Segmentation fault

The imx519 sensor has two focus options:

1. CDAF, contrast based autofocus (slower)
2. PDAF, phase based autofocus with fallback to CDAF (faster)

To enable CDAF autofocus simply copy the following imx519.json to /usr/share/libcamera/ipa/raspberry/.
Download: imx519.json supporting CDAF autofocus
No additional custom driver/apps from Arducam need to be installed. See the gist revisions to see what is changed. The updated file is extracted from Arducams libcamera binaries .

In /boot/config.txt add following entries to the [all] group:

dtparam=i2c_arm=on
dtparam=i2c_vc=on
camera_auto_detect=1
dtoverlay=imx519

To enable PDAF currently the Arducam's libcamera need to be installed. Follow their documentation for this feature.