rk3188 tablet kernel sources

[raxy]

respect ! need help

Hi all and applause for dnkn, your mastery is way cool.
I have gît cloned your rk3188 sources for tablet,
But would like to know what to do next to have gênerated kernel.img without error.
My goal is to Cook a kernel for pipo m7 pro from thèse sources as you've done for your m9.
Would y ou please mind giving me a hand ?
Tks in advance.

[dnkn]

Well, those sources are for pipo m9 only (I have it and made working image just for it). So m7 will not work, it has to be edited pretty much. If you want just overclock then go with binary patched kernels. There's plenty of them on this forum as I've seen.

Отправлено с моего S5301 через Tapatalk

[dnkn]

You can make a working kernel out of these sources, but you'll have to work rather hard to accomplish this task.

Отправлено с моего S5301 через Tapatalk

[raxy]

Me and my friends are ready to work hard for that. Would you give US the advices and the directions based on your expérience for m9 ?

[dnkn]

First you should examine dmesg output of your stock kernel to see what hardware you actually have, then use gpio_dump script lying somewhere on this forum to see what gpios are used, then use that script with WiFi on then off then BT on and off, to know what gpios stand for WiFi &BT, then find out what screen you have, look for corresponding config in drivers/video/rockchip/screen (if I remember the right path). Camera definition is in arch/arm/rk3066/ds1006h- camera (for m9). You'll have to make tons of test runs as those sources are for some tablet, I don't know which exactly.



Отправлено с моего S5301 через Tapatalk

[raxy]

Sounds good dnkn,
Il will search thé tool you mentioned and attack these gpio questions.

[raxy]

Now , i have dmesg output , right after bootup.
And
I also have four gpio_dump outputs, with all combination of BT and Wifi on or off.
What to do next ?

[dnkn]

There's a command in Linux "diff" it shows differences in files, in windows "fc" does pretty much the same.compare WiFi on and WiFi off, BT on and BT off. You'll get the right gpios . as for dmesg,read it and see what modules show up.
ls /sys/modules on stock kernel will show you the list of kernel modules present.
ls /sys/bus/i2c/devices will show which i2c addresses are used.
Then edit sources to fit all this. You should have some Linux and C programming language knowledge to be able to.
Examine sources in arch/arm/rk3188/ you should find the right board file and edit it.
I'm not sure if there's everything you need for m7pro, but it is possible.
Run gpiodump with screen on and off it should reveal 2gpios for LCD and backlight(not sure how to guess which is for LCD and backlight)

Read some docs on kernel development, not sure what. I'm on mobile Internet now, is slow and limited, so its up to you to find information.

Отправленно от моего M9 с помощью Tapatalk 4

[raxy]

Tks a lot dnkn, i will do that.

[mad86]

Hi dnkn is it possible to upgrade the Mali400 module "diver" on kernel ? i saw a custom kernel for galaxy note with newer driver and it can make a great perfomance improvement :P

Source of Mali-400 drivers : http://malideveloper.arm.com/develop...evice-drivers/

[dnkn]

I doubt it can really improve performance. Kit Kat has really improved 3d performance. I'm working on it.

Отправлено с моего ZP900 через Tapatalk

[fazerg]

KitKat & M7pro

Hi,
I'm about to try to get some improvements with KitKat on M7pro. The goals at the moment are to get back auto brightness and GPS.
Will get GPIO dump later today and start working on.
Just need some advise about configuration file. There are so many settings and there is no way to get original one for M7 as this option not implemented in kernel. Does anyone have defconfig for M9 Max 3G?
My plan for today is:
1. Flash 4.2.2 JB back and get GPIO dump from there.
2. Flash KitKat again and get GPIO dump
3. Compare
4. Find out which sources to modify
Next plan:
1. Modify sources as needed
2. Create correct configuration

[raxy]

appreciation

Your initiative is appreciated !
Would you mind publishing your gpio map please ? i had trouble to get them out of my custom rr rom for now...

[fazerg]

same with me. I'll flash stock October ROM later today, get GPIO dump from it and then try to get it from KitKat.

BTW, has anyone noticed that with KitKat sources for RK3188 comes Linux console utility to flash everything either RKFW whole image or single partition images. It's possible as well to dump partitions, switch to bootloader, reboot device, fomat and much more. Basically, everything needed for developer. And even more, this utility supports call from console input i.e. should be very easy to create GUI utility and froget about WIndows concerning Rockchip devices forever

[raxy]

Linux console utility

Sorry I did not notice this,
but it make a lot of sense to use linux both to compile android and kernels and to deploy them to the devices