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, selim...@gmail.com <javascript:> wrote: > > 17 Mart 2014 Pazartesi 00:52:27 UTC+2 tarihinde Joe Burmeister yazdı: > >> On 14/03/14 15:36, selim...@gmail.com <javascript:> wrote: > >> > >>> 14 Mart 2014 Cuma 17:33:56 UTC+2 tarihinde selim...@gmail.com yazdı: > >>>> 13 Mart 2014 Perşembe 14:22:52 UTC+2 tarihinde Joe Burmeister yazdı: > >>>>> On 13/03/14 12:05, selim...@gmail.com <javascript:> wrote: > >>>>>> 13 Mart 2014 Perşembe 12:20:15 UTC+2 tarihinde Joe Burmeister > yazdı: > >>>>>>> On 13/03/14 09:52, selim...@gmail.com <javascript:> wrote: > >>>>>>>> 27 Ağustos 2013 Salı 22:14:14 UTC+3 tarihinde > joe.a.bu...@gmail.com 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 > >>>>>>>>> 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) > >>>>>>>> and while trying to make touchscreen working I came acrross with > this gslx680 driver(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 > >>>> 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 > >>>> Original Firmaware (extracted): > 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 > > >> 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 > > -- You received this message because you are subscribed to the Google Groups "linux-sunxi" group. To unsubscribe from this group and stop receiving emails from it, send an email to linux-sunxi+unsubscr...@googlegroups.com. 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