| Re: [AD] Raspberry Pi port |
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On 11/30/2012 05:56 PM, Trent Gamblin wrote:
> On 2012-11-30, at 5:29 PM, Peter Wang <novalazy@xxxxxxxxxx> wrote:
>> On Wed, 28 Nov 2012 12:04:43 +0100, Elias Pschernig <elias.pschernig@xxxxxxxxxx> wrote:
>>> On Wed, Nov 28, 2012 at 8:30 AM, Trent Gamblin <nooskewl@xxxxxxxxxx> wrote:
>>>> Hello,
>>>>
>>>> I've got a Raspberry Pi port that should be ready for commit pretty soon now.
>>>>
>>> Awesome news.
>> Cool. Hopefully backporting the non-RPi parts to 5.0 (to reduce
>> divergence) won't be too much of a pain...
>>
>> It uses X, but also direct access to the Linux input device files for
>> keyboard/mouse/joystick input?
>>
>> Can you add some hints to the README about what tools to download and
>> install? I'll check it compiles every now and then.
>>
>> Peter
> Ya, sorry about the one big commit, but there's no way I could have managed
> multiple commits with all the backtracking and bugfixing I had to do.
>
> It doesn't require X. It will work both in X (where it'll use the X(GLX) keyboard
> and mouse drivers) and console (where it uses the old console drivers.) Joystick
> works the same in both. There is one problem in that the console keyboard
> driver lags extremely bad. It feels like it's polling for input once a second.
>
> It's quite a pain to compile with a cross compiler. I started doing it that way but
> then gave up on it. I compiled it on an actual Raspberry Pi and Jon Rafkind
> recently compiled it in a Raspi VM which should be handy.
>
> Compiling on device/vm is really simple, just like standard Linux. The default
> distro is based off Debian so it's the same process as compiling on Debian/
> Ubuntu (apt-get install -dev packages, then run cmake .. -DCMAKE_TOOLCHAIN_FILE=../cmake/Toolchain-raspberrypi.cmake).
A5 applications won't run inside qemu due to some GPU error that I guess is related to the binary blob that powers the real raspberry pi. From memory the error is
'failed to get an vchiq instance'
Ok technically my setup is an ubuntu vm running on an windows7 host and then qemu inside ubuntu. Somehow I doubt things would go better if I was using ubuntu as a host or qemu on windows7. But you can still compile thing for the pi with qemu!