<parabyte>
i have a junk tablet with broken display im playing with debian on it
<parabyte>
how can i access its gpio's
<moofree>
_very carefully_ ;)
<parabyte>
haha
<parabyte>
im trying to work out what pins they are on
<parabyte>
im presuming they are shared with other stuff?
<parabyte>
like the uart
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<parabyte>
on another note i got some wonder media based android netbook obviously not a allwonder but i was wondering if anyone here got any idea what type of interface its keyboard may use
<parabyte>
before i start taking it apart tomorrow
<parabyte>
i do not have it here with me unfortunately
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<parabyte>
what is the type of lcd interface the a13 using?
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<oliv3r>
gooood morning
<JohnDoe_71Rus>
HI
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<wens>
hi
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<wens>
so much to do
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<oliv3r>
yeah :(
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<wens>
fixing more of stmmac then sunxi glue
<oliv3r>
sounds obvious, as it probably never was written to have other platform support
<wens>
the DT and non-DT code paths are mixed together, have to do a lot more work to get phy node support
<wens>
I'm worried about making it too complex
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<oliv3r>
hno: i'm lurking over u-boot as to how to add ahci, wanna do it eventually, any good example driver to investigate? i found the ahci driver, but haven't found callbacks where you can do additional tasks required to init your specific controller
<oliv3r>
hno: looks like the only board using ahci_init is highbank
<hno>
oliv3r, not sure. #u-boot is probably a better place to ask.
<oliv3r>
hno: :( well looks like not many platforms support it
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<nove>
never thought this before, but the compiled android .a libraries, some what *works* in gnu/linux
<Wizzup>
Did anyone get SPI to work?
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<nove>
it works
<nove>
got first jpeg encoder trace
<plaes>
slow clap :)
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<nove>
wingrime, libjpegenc.a compiled for android, works in armel gnu/linux, got a trace with a correct jpeg file, is similar to the h264 encoder
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<nove>
ssvb, do libhybris allows to run armel binaries in an armhf root?
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<ssvb>
nove: yes
<zoobab_>
hi
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<nove>
ssvb, just wondering if there is a way to link armel .a libraries into a armhf object
<libv>
nove: what is the difference between armel and armhf?
<ssvb>
libv: calling conventions for floating point function arguments
<libv>
nove: figure that out, and you know why the answer will be no and no and no
<libv>
ssvb: well duh.
<nove>
libv, not really know
<nove>
libv, ok ok
<ssvb>
libv: ok, sorry, did not notice that it was a rhetorical question :)
<libv>
ssvb: well duh. :p
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<ssvb>
nove: libhybris provides its own loader for the shared libraries and also implements thunks for calling conventions translation when doing function calls
<libv>
it must be "stating the bleeding obvious to libv" night again :p
<nove>
libv, ssvb, maybe is not worth the trouble, let'a wait and see what allwinner will give with openmax cedar
<ssvb>
nove: but a better question is why do you want to link this library?
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<libv>
nove: what stops you from working with armel binaries in an armel installation?
<ssvb>
nove: isn't just using armel rootfs enough for reverse engineering purposes?
<libv>
nove: if the end result is going to be source code, what's the problem?
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<nove>
libv, ssvb, nothing, yes armel is enough
<nove>
libv, ssvb, only that if there easy to use binaries, maybe the people that can not wait for RE, would help in making usable players that could be used for tracing
<libv>
nove: we've been on armhf for an awfully long time already
<libv>
nove: just get on with the tracing and finnicking and don't worry
<nove>
libv, ok
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<parabyte>
hi
<parabyte>
what sort of means apart from usb could i think about hooking up a ps2 keyboard to the a13
<hno>
nove, to trace armel or even Android binaries on an armhf system you only need a small chroot for those applications.
<nove>
hno, yes i am already use a chroot, i just was wondering if this could be made more easy
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<bsdfox>
parabyte, I think you can use SPI in slave mode for a PS/2 keyboard
<parabyte>
hmm im unsure if my spi is hooked up or not
<parabyte>
im playing around with a tablet and wanna hack a keyboard into it via non usb means
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<bsdfox>
parabyte, have you identified any GPIO?
<bsdfox>
you can just poll the pins too if necessary
<parabyte>
not yet only opened the board up earlier
<bsdfox>
well, you'll need to find some stuff to play with before anyone can help you
<parabyte>
i might get a dev board trying to find free pins on this thing is a nightmare
<bsdfox>
I'd guess you will find i2c/spi and maybe a uart on board which could probably be used as gpio for a keyboard
<bsdfox>
why don't you want to use usb though? definitely the easiest solution
<parabyte>
i2c being used for the zet6221
<parabyte>
i wanted to put the tablet on a hinge on a old clicky keyboard
<parabyte>
no idea why lol
<parabyte>
but there you go
<parabyte>
ill be back when i know what is free and what is not free :) i also want to play with interfacing 8bit isa stuff with the a13!
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<bsdfox>
parabyte, I would just try to wire something like this in there http://www.google.com/imgres?imgurl=http://upload.wikimedia.org/wikipedia/commons/6/63/Usb_to_ps_2_adapter_IMGP1414.jpg&imgrefurl=http://commons.wikimedia.org/wiki/File:Usb_to_ps_2_adapter_IMGP1414.jpg&h=1502&w=2000&sz=460&tbnid=T4xxVbw_ZEvnrM:&tbnh=96&tbnw=128&zoom=1&usg=__dUFwXEe3CpFb6JfU4SF1P7IA4wQ=&docid=MvHyy8bxi9aMHM&sa=X&ei=NyGqUo3nFIPwoAS96oHwAg&ved=0CG4Q9QEwBA
<parabyte>
i do have one of those somewhere
<bsdfox>
I'm not sure if there is any processing involved or if the data and clock are picked up on D+/D- nativelyh
<parabyte>
i got 4 a13 boards i got for a really good price off ebay
<bsdfox>
but identifying peripherals on the touchpad will be fun for other projects
<parabyte>
broken displays
<parabyte>
;)
<parabyte>
i got 1 good display i swap around!
<parabyte>
all the interrupts are free on the board i think
<parabyte>
i need to unscrew it from the casing and take a good look both sides
<bsdfox>
all the interrupts?
<parabyte>
let me sign off this go into my workshop and try and take a closeup photo
<parabyte>
to demo what i am trying to say :)
<parabyte>
brb
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<[7]>
hm... any hints how I could keep the resistive touch panel awake during LCD sleep and make a touch wake up android? :)
<bsdfox>
[7], that might require some kernel module changes
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<[7]>
bsdfox: actually I'd prefer to mess with the kernel rather than android :)
<[7]>
but I'll probably have to mess with both for that
<bsdfox>
[7], see if you can figure out what driver your touch panel is using then start reading the source code :)
<[7]>
well, I knew that much before ;)
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<Turl>
[7]: you'll probably need to rework the early suspend/late resume routines for your driver to not shut it down
<bsdfox>
also you might have issues using it as a wake up source
<bsdfox>
I'm not sure where you might add that support
<[7]>
I don't really suspend linux anyway
<[7]>
it's just the LCD that is turned off after a few minutes of inactivity
<[7]>
the rest of the hardware stays awake
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* TheSeven
wonders what makes sunxi-ir (unlike e.g. axp209-supplyer) appear as a physical external keyboard on android...