Hi Kristijan,
OMG, there is the full source already ported to Sunxi!
To get it working for GNU/Linux I had to find and port some random SoC
GSLx driver over!
About the only concrete thing I'd say mine has over this is that mine
loads firmware from a separate file.
I'll have to do a more complete comparison. Maybe a rebase. Firmware
must be a separate file to scale to a generic driver.
At some point I really should look into the mainlining effort and making
it support Device Tree, I'm just got next to no time at all spare for
this. :-(
Joe
On 02/10/14 09:29, Kristijan Vrban wrote:
Hi Joe,
it was not necessary to extract the firmware. I just used this fw source:
http://dl.linux-sunxi.org/SDK/A23-v1.0/unpacked/A23/lichee/linux-3.4/drivers/input/touchscreen/gslx680/gsl1680_k70.h
Which is working with the Q88 touch panel. We just had issues to
solder the gsl1680 manually without electrical shorts :)
Kristijan
Am Mittwoch, 1. Oktober 2014 23:00:54 UTC+2 schrieb Joe Burmeister:
Hi Kristijan,
Not sure quite what your after, but here is a new, not tested yet
(would have to dig up the tablet), firmware extractor.
It uses just readelf, objcopy and dd. Quick and dirty "python for
shell" implementation.
Hopefully this should help.
Joe
On 01/10/14 10:00, Kristijan Vrban wrote:
Hello,
attached is a gslX680.ko module from a Q88 A23 based tablet (the
cheap USD 32 devices) I just started to extract the firmware to
use gsl1680 IC with the touch panels that are used in this Q88
devices.
I think "GSL1680_K70_FW" should be the one. from this module.
Attached is also a small PCB design made in eagle to make test
connection between that touch panels and I2C interface. Maybe it
is useful for someone.
Kristijan
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