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6601 board CAMERA 1 and CAMERA 2 CSI interface configuration

Questions and discussions related to Inforce 6601™ development kit

by adam.turowski » Fri Jul 20, 2018 3:43 am

Hi all,

I am trying to get CAMERA 1 and CAMERA 2 CSI interfaces on 6601 board working. I looked through device source trees and I found arch\arm64\boot\dts\qcom\msm8996-camera.dtsi file, which I believe configures camera interfaces on 6601. Is it the correct file? I look through it and found that there are three CSIPHY interfaces and four CSID interfaces.

1) How do you setup CSI lanes count? I need to use 4 lanes on each camera interface.

2) How do you setup the frequency (or allowed frequency ranges) on CSI bus clock lane?

3) What CSI input pixel formats are supported?

4) I've noticed that there are four device files (/dev/video0, dev/video1, /dev/video32 and /dev/video33) available to user space on Android. Which of these files correspond to CAMERA 1 and CAMERA 2 interfaces? Are they v4l2 compatible interfaces?

5) I've also checked the documents available on InForce website, but found none related to CSI interface setup. Are there any application note, documentation or example code showing how to use CSI interfaces?

Sorry for so many questions, just feeling a bit lost in Linux video system.

Kind regards,
Adam
adam.turowski
 
Posts: 2
Joined: Fri Jul 20, 2018 12:37 am

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