Hi Hunter,
Sorry didn't get back sooner, only had my phone with me and writing
anything of any length on it is painful.
Can you send me your dmesg output and your gslx680.ko?
Maybe there is something in the dmesg output that will tells us more. If
not, perhaps some extra verbose info can be added to the driver to give
us a clue.
The other thing I want to check the firmware extracted by the extractor,
perhaps it's not all of it.
Joe
On 03/05/14 20:50, hunter hu wrote:
Hi Joe,
I have a gsl1680 chip and it is a 4.3" 480x272 display. I used the
"firmware/fw_extractor" tool extracted the firmware from the Android
binary gslx680.ko for my tablet, but experiencing the same issue Selim
had before.
dmesg shows the driver successfully loaded, chip probed and firmware
also loaded correctly, but evtest shows no output whatsoever.
Any help or ideas will be appreciated, thanks in advance.
thanks,
-Hunter
On Tuesday, March 18, 2014 5:03:24 AM UTC-5, Joe Burmeister wrote:
On 18/03/14 09:03, [email protected] <javascript:> wrote:
> 17 Mart 2014 Pazartesi 00:52:27 UTC+2 tarihinde Joe Burmeister
yazdı:
>> On 14/03/14 15:36, [email protected] <javascript:> wrote:
>>
>>> 14 Mart 2014 Cuma 17:33:56 UTC+2 tarihinde [email protected]
yazdı:
>>>> 13 Mart 2014 Perşembe 14:22:52 UTC+2 tarihinde Joe Burmeister
yazdı:
>>>>> On 13/03/14 12:05, [email protected] <javascript:> wrote:
>>>>>> 13 Mart 2014 Perşembe 12:20:15 UTC+2 tarihinde Joe
Burmeister yazdı:
>>>>>>> On 13/03/14 09:52, [email protected] <javascript:> wrote:
>>>>>>>> 27 Ağustos 2013 Salı 22:14:14 UTC+3 tarihinde
[email protected] yazdı:
>>>>>>>>> Hi,
>>>>>>>>> For a while I've been working on getting my A13 tablet
touch screen working with GNU/Linux.
>>>>>>>>> It's now working well enough for my purposes and I
figured it was time to push it out.
>>>>>>>>> The code can be found at:
>>>>>>>>> https://gitorious.org/gslx680-for-sunxi
<https://gitorious.org/gslx680-for-sunxi>
>>>>>>>>> It would be easy to move it in tree. What is a bit
different from the other touch screen drivers is that it doesn't
include the firmware in the driver.
>>>>>>>>> I've split the firmware into a separate file that you
name in the fex/script.bin file.
>>>>>>>>> The reason for this is that the firmware defines things
about the hardware such as resolution and can't be easily
modified. So to support multiple devices you'd need multiple
firmware included. Or your have to build for each driver+firmware
combination. Better to have it a seperate file and which firmware
be a configuration thing. That fits better to me with
fex/script.bin or Device Tree. I've also added legacy single touch
as well as multi touch.
>>>>>>>>> Not sure where we go from here, but no point me sitting
on it. ;-)
>>>>>>>>> Joe
>>>>>>>>>
>>>>>>>> Hi,
>>>>>>>> I have a A13 tablet (just like this one -->
http://moveontechnology.com/hugoenchina/?p=324
<http://moveontechnology.com/hugoenchina/?p=324>)
>>>>>>>> and while trying to make touchscreen working I came
acrross with this gslx680
driver(https://gitorious.org/gslx680-for-sunxi
<https://gitorious.org/gslx680-for-sunxi>)
>>>>>>>> I'm using sunxi-3.4 kernel and compiled the driver
successfully for this kernel. My screen resolution is 800x480 so
I'm using the firmware supplied by the source code.
>>>>>>>> I can successfully insmod the driver, got the successfull
dmesg messages as expected, but when I try testing the driver with
"evtest" tool, i got totally no output from gslx680 mmodule
(/dev/event/event1).
>>>>>>>> I am completely stuck at this point, any suggestion will
be really helpfull.
>>>>>>>> Thanks in advance.
>>>>>>>> selim
>>>>>>> Hi Selim,
>>>>>>> I've done an update recently that makes the new code work
properly with
>>>>>>> X, it was broken at one point.
>>>>>>> At this point, as far as I know, I need to start the
process of getting
>>>>>>> it into sunxi properly. Maybe add DT and get it fully
upstreamed. Yet to
>>>>>>> start that process.
>>>>>>> Anyway, no output from evtest tells me the problem is
probably the firmware.
>>>>>>> You need to extract the firmware from your android driver.
There is a
>>>>>>> python script in the firmware directory called
fw_extractor (and
>>>>>>> fw_info) that should be able to do this, if the driver is
related to the
>>>>>>> Android one with my device. If the firmware isn't in the
Android driver,
>>>>>>> then we need to find where it lives on your device and put
it into the
>>>>>>> same binary format.
>>>>>>> If you feel you aren't getting anywhere, send me the
Android driver and
>>>>>>> I'll have a look to see if the firmware is in there and
adapt the script
>>>>>>> to find it there too.
>>>>>>> We need to start building a database of the firmware for
the gslx680
>>>>>>> chips. If we can work out how to tell which chip needs
which firmware,
>>>>>>> we can select the right one automatically. The aim of
course is
>>>>>>> everything just works. :-)
>>>>>>> Joe
>>>>>> Joe Hi,
>>>>>> Thanks for the quick reply,
>>>>>> Indeed I have read in some forum posts that people trying
wrong
>>>>>> gslx680 firmwares got shifted touch outputs, I haven't seen
a post
>>>>>> with no output from the driver.
>>>>>> I hope its about the wrong firmware.
>>>>>> Ok, now I will pull the successfully running driver
(gslX680.ko)
>>>>>> from running android device and extract the firmware as you
suggested.
>>>>>> Thanks again.
>>>>>> selim
>>>>> Hi Selim,
>>>>> No prob, delighted when someone has a play with it. :-)
>>>>> The result of the wrong firmware is hard to guess.
>>>>> The firmware for this device is just a buck load of settings
from what I
>>>>> can see.
>>>>> Only thing that probably holds is it depends how far out
your device is
>>>>> from the settings in the firmware on how well it works.
>>>>> Please please let me know how you get on.
>>>>> Joe
>>>> Hi Joe,
>>>> Today I have rooted my tablet, successfully find the
touchscreen module named as "A13_gslX680" and pulled the ko file
with adb pull.
>>>> Good news :)
>>>> After extracting the firmware from the original module and
trying gslx680_ts driver with the original firmware everything
worked like a charm, now I can get outputs from evtest tool.
>>>> More information about my tablet and firmware is;
>>>> my tablet exactly looks like this one -->
https://drive.google.com/file/d/0B7kdmqnGET4eeHVlY1k2REVlemc/edit?usp=sharing
<https://drive.google.com/file/d/0B7kdmqnGET4eeHVlY1k2REVlemc/edit?usp=sharing>
>>>> Screen size: 9" , 800x480
>>>> Mainboard ID : TW_A0910_16B_V1.1_0830
>>>> Touch screen IC : GSL3680
>>>> Original Module :
https://docs.google.com/file/d/0B7kdmqnGET4eeHVlY1k2REVlemc/edit?pli=1
<https://docs.google.com/file/d/0B7kdmqnGET4eeHVlY1k2REVlemc/edit?pli=1>
>>>> Original Firmaware (extracted):
https://docs.google.com/file/d/0B7kdmqnGET4eNzItc0tYYW5PY3M/edit?pli=1
<https://docs.google.com/file/d/0B7kdmqnGET4eNzItc0tYYW5PY3M/edit?pli=1>
>>>> I hope it is useful for others.
>>>> Thanks for your help.
>>>> selim
>>> sorry wrong link for the tablet !
>>> my tablet exactly looks like this one -->
>>>
http://www.aliexpress.com/item/MV90-9-inchs-Allwinner-A13-Tablet-9-single-core-4GB-512MB-360-deg-gravity-sensor-cheap/1528614982.html
<http://www.aliexpress.com/item/MV90-9-inchs-Allwinner-A13-Tablet-9-single-core-4GB-512MB-360-deg-gravity-sensor-cheap/1528614982.html>
>> Thanks, I've added your firmware to the repo. I also took apart my
>>
>> tablet to see exactly which gsl?680 mine is. Answer, gsl1680.
So we have
>>
>> gsl1680 and gsl3680. When I get a spare moment, I'll process
this stuff
>>
>> update the wiki page.
>>
>>
>>
>> Joe
>
> Joe,
>
> I'm using the latest sources, but while I dont have an X
> (or any kind of window manager) on my target device,
> I cant help you with X compatibility.
>
> I'm using Qt/QWS with tslib (direct access to fb) on my target,
> now I'm trying to work it out.
> I will inform you when I succeed.
>
> Regards.
>
> selim
>
Cheers,
Should work, I'm sticking the to protocol as far as I know.
You should be able to use single or multitouch events.
Joe
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