Possible to rewrite (FOSS) software on Prius Prime Multi Media Display?

Isn't this just for maps?

TOYOTA | opensource | DENSO Global Website

 

I suspect you could retire early if you can also make sure the touch screen works so it is a true mirror of the phone

 

Apparently the 2018 Camry uses open source Linux OS. I wish we had that.

 

A lot of big companies use free and open source software these days.
And some of them even contribute to the sources.

 

I agree 100%. The UI totally SUCKS. It's worse than my 2012 Prius V.

 

The fact that they USE open-source software is irrelevant. There's a legal requirement that they publish the license and distribute source code.

That means nothing when it comes to the question, "can I modify this computing product by rewriting the software?"

I have a feeling they buy this electronics package, software and all, from third-parties, then spend minimal time simply branding it and adjusting the "look and feel". The Nav functions behave just like an old Garmin GPS device I got for $50 10 years ago. Same old software, bigger display. Woo hoo. We're supposed to be impressed.

How about if they just let us run screen mirroring in the top half of the screen and I'll use my iPad Mini 3 as the source?

 

They want all your data. If you mirrored your iPad, or used CarPlay or android auto, Toyota doesn’t get your data.

There’s a reason why Siri hands free is supported and not CarPlay. Data.

 

How can we get this mod? I’m interested

 

I downloaded the open source zip files from both the Denso and Toyota (FOSS) sites. While this is a bit foreign to me, I've got 25 years of embedded programming experience. Are these even complete? What processor is the display even using? What OS?

Have you gotten a cross-compiling/build system going yet?

Not looking for someone to solve everything here, but I'd love to be able to get something started with this.

 

They use Intel Atom and OpenSuse 10 fork. I am ported 2021 firmware to 2017 headunit, but carplay not working. 2021 headunit have additional hardware IC for Carplay (Milti Host USB Support). It is reason why they cant publish update for carplay support. But, i tull try to make external USB adapter with this IC. And still dont know does it have correct iAP2 sertificate.
p.s. no any kernel source in emmc disk

 

I looked around and found some info. I'm not sure if any of this will guide, but I'll post anyway. I don't have any embedded hardware booting from emmc on atom so it's new ground for me.
eMMC (Linux) | Toradex Developer Center
Configuration and Monitoring section looks like it might be helpful.

MMC tools introduction — The Linux Kernel documentation
( shows everything to date, kernel )
if I find anything configured and built for atom I'll add a link for it.
have any atom hardware ID ( Gen 4 or 5 ) ?

Antboard - eLinux.org
still looking for pre-built example

 

@vvillovv, i have root access via SSH yet
Intel(R) Atom(TM) CPU E3826 @ 1.46GHz
User interface (HMI) - Adobe AIR (*.swf) can be easy modified.

No problem to start any x86 OS, but no any source code for proprietary devices (TP controller, CANBUS etc). Better is retranslate image to HMI from external device) - andoid box etc to Adobe AIR layer.

 

It's been my experience that playing with the software in this sort of thing is best offline. (I really don't want to brick the display in the car my wife takes to work everyday. I also like doing development in front of my development system, rather than in the seat of a car.)

I don't know if this helps, but in the interest of sharing notes, I found an eBay seller with 10 NEXCOM NISE50W-UPS used Fanless Computers ((Lot of 10) NEXCOM NISE50W-UPS Nise 50W Fanless Computer | eBay) that seem to use that E3826 @1.46GHz for sale. I sent a message to see if he would break out 1 or 2 of those for a side sale. so I don't have to spend the extra money and get 10 of the things.

 

I’d love Prius Prime 2023 media screen to show Apple car play Google map part screen, and car energy flow screen part screen. Or just car energy part screen (not full screen) and anything else with it. Is this possible?

 

All things are possible

 

Any luck?

 

Just because the open source license is provided by Toyota doesn't mean that the program being used is all open. It's not ! But there are parts of the program that are used that require the licensing to be included. Toyota is well within the open source guidelines for giving credit where credit is due, to the open source devs that have added functionality to their programs.
That in no way means that all the code is open source. ie; hack away at it at your own risk.