[Pipo-Project] M7Pro kernel

[stevejc]

Ok, here you will find some image and a video of the problem : touch screen and lcd orientation




here is the video : https://mega.co.nz/#!9d1RzLYL!KKPIqJ...9hP_nxpVhU_EN0

I use a pen to show touch movement and you can see a cursor that normally must be under the pen !

[stevejc]

Your DMESG shows a high leakage level which backs off the voltage automatically. Not a healthy tablet


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Yes, it's a second hand tablet given by a nice Freaktab member

The tablet goes often to Mask Rom !
Then I Need to plug it, and flash loader and boot.img and it's ok !

[stevejc]

Can you post latest DMESG please


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here it is :

[d33]

here it is :

So, It seems everything I fixed worked apart from the Touchscreen.

Now all the errors are gone I can see that the cameras need fixing too.

So:

• Gyro/lcd orientation
• Touchscreen
• Cameras

Let's start with the touchscreen.

M7Pro v1.03 (reversed x,y co-ords, removed gt928 driver)
M7Pro v1.04 (above + added angle driver)

[rrileypm]

I've moved this thread to the new Development Projects sub-forum.

[raxy]

M7Pro v1.03 (reversed x,y co-ords, removed gt928 driver)
M7Pro v1.04 (above + added angle driver)

Thanks,
any chance to have the .config files for those ?
in your (private) git, I've only found a config.m8hd an no appropriately name defconfig for other pipo tablet, or is it me ?

I'm aiming a remaking one of those versions

tks.

[d33]

Thanks,
any chance to have the .config files for those ?
in your (private) git, I've only found a config.m8hd an no appropriately name defconfig for other pipo tablet, or is it me ?

I'm aiming a remaking one of those versions

tks.

.. in our private repo ... . I just pay for it.

You can extract the config from the kernels. However, you also need my latest code. I'll push it a little later.

[raxy]

I know I will be able to extract the .config from /proc/config.gz on a tablet running your kernel,
but I'd rather wanting to start with making my own the way you did your 1.03 or 04.

[d33]

[Pipo-Project] M7Pro kernel

You can extract with ikextract-config


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[stevejc]

So, It seems everything I fixed worked apart from the Touchscreen.

Now all the errors are gone I can see that the cameras need fixing too.

So:

• Gyro/lcd orientation
• Touchscreen
• Cameras

Let's start with the touchscreen.

M7Pro v1.03 (reversed x,y co-ords, removed gt928 driver)
M7Pro v1.04 (above + added angle driver)

Hi,

With 1.04 I have boot loop

With 1.03, it 's booting well
but, same as 1.02
LCD landscape / portrait inversed

but with touchscreen in correct order,
except x axis inversed, when I go left it goes right
when i go up it goes up

And up origin is good but bottom origin is a little to high, I can't go while down

[d33]

Hi,

With 1.04 I have boot loop

With 1.03, it 's booting well
but, same as 1.02
LCD landscape / portrait inversed

but with touchscreen in correct order,
except x axis inversed, when I go left it goes right
when i go up it goes up

And up origin is good but bottom origin is a little to high, I can't go while down

Ok I'll try to push my code/config tonight. I'm sure we can get the TS sorted but the orientation problem doesn't appear to come from the gyro code

[d33]

Ha! I've seen how to fix orientation too. So that just leaves the camera which will just be a GPIO issue, so no real problem.

[raxy]

my freshly baked kernel.img has just landed on my filesystem !

used this configfile : pipoM7pro.defconfig.zip

I was quite annoyed my the high number of warnings, one day I'd like to bust them all (not just using -Wxx).

You guys are using which crossplatform toolchain binaries (inc. version number) ?
I've read linaro's are producing faster code...

I had to change a bit the root Makefile to use my toolchain down their PATH;
remember not to use ~ in the path for Makefile because at least mksysmap will fail to deal with vmlinux...

I 've run

make clean
 make ARCH=arm kernel.img

from the folder where I deployed a clone of dee's git.

Is there any otherthing to do before flashing that kernel.img ?

Tks !

[d33]

M7Pro v1.05

Changelog:

1. tried different gyro settings
2. removed angle driver from non-booting 1.04 kernel
3. first use of differential coding - note to devs - select model name in system type

Pushed code to git so that Raxy / steve / maakie can follow same style

SteveJC / Raxy,

If you have M7Pros it will be easier for you to take over and finish this off. What needs doing is:

1. setting the correct orientation params in the L3g driver within the ds1006.c source. Probably trial and error
2. Fiddling with the VT TS config params and the init values to get the touchscreen spot on
3. Amending the camera params to use the right GPIOs

Where you change code can you wrap with pre-compiler defines (CONFIG_PIPO_M7PRO) please?

[d33]

my freshly baked kernel.img has just landed on my filesystem !

used this configfile : [ATTACH]8678[/ATTACH]

I've pushed my latest code so suggest you pull and re-compile

I was quite annoyed my the high number of warnings, one day I'd like to bust them all (not just using -Wxx).

Too many, too little time!

You guys are using which crossplatform toolchain binaries (inc. version number) ?
I've read linaro's are producing faster code...

Currently using the toolchain provided in the SDK (4.6 non-hf) to ensure complete compatibility with Pipo until we are happy everything is working to our satisfaction. For all other kernel sources I use the latest linaro (4.8.2 HF) [/QUOTE]

I had to change a bit the root Makefile to use my toolchain down their PATH;
remember not to use ~ in the path for Makefile because at least mksysmap will fail to deal with vmlinux...

No problems for me?

I 've run

make clean
 make ARCH=arm kernel.img

from the folder where I deployed a clone of dee's git.

Is there any otherthing to do before flashing that kernel.img ?

Tks !

no need for ARCH as it is set in the makefile.

See above for list of outstanding fixes required for M7Pro