* [9fans] Raspberry Pi userland is now open
@ 2012-10-24 16:25 Scott Elcomb
2012-10-24 17:54 ` Sergey Zhilkin
2012-10-24 18:03 ` sl
0 siblings, 2 replies; 8+ messages in thread
From: Scott Elcomb @ 2012-10-24 16:25 UTC (permalink / raw)
To: 9fans
Hi all,
For those working on Plan9 for the Pi, userland is now completely open
source: <http://www.raspberrypi.org/archives/2221>
I need more Pi =D
Best regards,
--
Scott Elcomb
@psema4 on Twitter / Identi.ca / Github & more
Atomic OS: Self Contained Microsystems
http://code.google.com/p/atomos/
Member of the Pirate Party of Canada
http://www.pirateparty.ca/
^ permalink raw reply [flat|nested] 8+ messages in thread
* Re: [9fans] Raspberry Pi userland is now open
2012-10-24 16:25 [9fans] Raspberry Pi userland is now open Scott Elcomb
@ 2012-10-24 17:54 ` Sergey Zhilkin
2012-10-24 18:03 ` sl
1 sibling, 0 replies; 8+ messages in thread
From: Sergey Zhilkin @ 2012-10-24 17:54 UTC (permalink / raw)
To: Fans of the OS Plan 9 from Bell Labs
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Good !
2012/10/24 Scott Elcomb <psema4@gmail.com>
> Hi all,
>
> For those working on Plan9 for the Pi, userland is now completely open
> source: <http://www.raspberrypi.org/archives/2221>
>
> I need more Pi =D
>
> Best regards,
> --
> Scott Elcomb
> @psema4 on Twitter / Identi.ca / Github & more
>
> Atomic OS: Self Contained Microsystems
> http://code.google.com/p/atomos/
>
> Member of the Pirate Party of Canada
> http://www.pirateparty.ca/
>
>
--
С наилучшими пожеланиями
Жилкин Сергей
With best regards
Zhilkin Sergey
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^ permalink raw reply [flat|nested] 8+ messages in thread
* Re: [9fans] Raspberry Pi userland is now open
2012-10-24 16:25 [9fans] Raspberry Pi userland is now open Scott Elcomb
2012-10-24 17:54 ` Sergey Zhilkin
@ 2012-10-24 18:03 ` sl
2012-10-24 18:52 ` Nicolas Bercher
1 sibling, 1 reply; 8+ messages in thread
From: sl @ 2012-10-24 18:03 UTC (permalink / raw)
To: 9fans
> From: Theo de Raadt <deraadt@cvs.openbsd.org>
> Sender: owner-misc@openbsd.org
>
>> http://www.raspberrypi.org/archives/2221
>
> Well, they are lying to everyone.
>
> Their "open source" is nothing but a layer of code which calls into a
> closed source back-end.
^ permalink raw reply [flat|nested] 8+ messages in thread
* Re: [9fans] Raspberry Pi userland is now open
2012-10-24 18:03 ` sl
@ 2012-10-24 18:52 ` Nicolas Bercher
2012-10-24 20:49 ` cinap_lenrek
0 siblings, 1 reply; 8+ messages in thread
From: Nicolas Bercher @ 2012-10-24 18:52 UTC (permalink / raw)
To: Fans of the OS Plan 9 from Bell Labs
Le 24/10/2012 20:03, sl@9front.org a écrit :
>> From: Theo de Raadt<deraadt@cvs.openbsd.org>
>> Sender: owner-misc@openbsd.org
>>
>>> http://www.raspberrypi.org/archives/2221
>>
>> Well, they are lying to everyone.
>>
>> Their "open source" is nothing but a layer of code which calls into a
>> closed source back-end.
Do you mean there's a firmware or some binary blob that is still closed?
Nicolas
^ permalink raw reply [flat|nested] 8+ messages in thread
* Re: [9fans] Raspberry Pi userland is now open
2012-10-24 18:52 ` Nicolas Bercher
@ 2012-10-24 20:49 ` cinap_lenrek
2012-10-24 21:05 ` BS
0 siblings, 1 reply; 8+ messages in thread
From: cinap_lenrek @ 2012-10-24 20:49 UTC (permalink / raw)
To: 9fans
term% theo
Come on.. stop making assumptions.
--
cinap
^ permalink raw reply [flat|nested] 8+ messages in thread
* Re: [9fans] Raspberry Pi userland is now open
2012-10-24 20:49 ` cinap_lenrek
@ 2012-10-24 21:05 ` BS
2012-10-25 8:05 ` Richard Miller
0 siblings, 1 reply; 8+ messages in thread
From: BS @ 2012-10-24 21:05 UTC (permalink / raw)
To: Fans of the OS Plan 9 from Bell Labs
its true, if you read the forum fully...
On Wed, Oct 24, 2012 at 1:49 PM, <cinap_lenrek@gmx.de> wrote:
> term% theo
> Come on.. stop making assumptions.
>
> --
> cinap
>
^ permalink raw reply [flat|nested] 8+ messages in thread
* Re: [9fans] Raspberry Pi userland is now open
2012-10-24 21:05 ` BS
@ 2012-10-25 8:05 ` Richard Miller
2012-10-25 9:07 ` Charles Forsyth
0 siblings, 1 reply; 8+ messages in thread
From: Richard Miller @ 2012-10-25 8:05 UTC (permalink / raw)
To: 9fans
In practical terms this doesn't make a lot of difference for Plan 9 as it is now. Dev/draw makes use
of only a few simple 2d operations for "accelerated" graphics, and the dma engine on the raspberry pi
SoC provides a 2d memory-to-memory mode which should be sufficient to do these on the ARM side.
But if anyone is ambitious enough to do something more high level - Plan 9 movie player? - it should
be useful to be able to see the API used between the linux high level graphics libraries and
the GPU firmware, instead of having to reverse engineer the protocol on the wire. Now we get
to reverse engineer the linux library source instead. (In my experience linux software can be
so convoluted that this may not be an improvement, but maybe in this case we'll be lucky.)
^ permalink raw reply [flat|nested] 8+ messages in thread
* Re: [9fans] Raspberry Pi userland is now open
2012-10-25 8:05 ` Richard Miller
@ 2012-10-25 9:07 ` Charles Forsyth
0 siblings, 0 replies; 8+ messages in thread
From: Charles Forsyth @ 2012-10-25 9:07 UTC (permalink / raw)
To: Fans of the OS Plan 9 from Bell Labs
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I don't see any problem with having to talk to invisible firmware.
Surely that's normal for devices with firmware?
In this case, it seems even better for Plan 9, because the OpenGL/ES engine
is in the firmware,
so we don't need to write or port one, just talk to an existing one.
It's similar situation to a wireless device I drove some time ago: apart
from a slightly strange protocol to
talk to it, the firmware did all the work (as on the Orinoco cards),
the interface was quite high level, and there was no need for MadWifi etc.
I didn't feel hard done by because I couldn't change the firmware.
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^ permalink raw reply [flat|nested] 8+ messages in thread
end of thread, other threads:[~2012-10-25 9:07 UTC | newest]
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-- links below jump to the message on this page --
2012-10-24 16:25 [9fans] Raspberry Pi userland is now open Scott Elcomb
2012-10-24 17:54 ` Sergey Zhilkin
2012-10-24 18:03 ` sl
2012-10-24 18:52 ` Nicolas Bercher
2012-10-24 20:49 ` cinap_lenrek
2012-10-24 21:05 ` BS
2012-10-25 8:05 ` Richard Miller
2012-10-25 9:07 ` Charles Forsyth
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