OT: Brooktree IC used in cg3 graphics framebuffer?

[Mark Cave-Ayland]

Hi all,

A slightly off-topic question, however there may be some people on the 
list who will know the answer to this: what was the number of the 
Brooktree IC used on the cg3 framebuffer? According to various sources, 
it looks like the BT458 was used on the cg6 - is this the same as the cg3?

ATB,

Mark.

[Nathan Kunkee]

Hi,

Not an answer to your question, but perhaps helpful:

Alan Coopersmith managed to get the source for XSun released, and it includes the cg6 driver. You can see it here:
http://dlc.sun.com/osol/x/downloads/openXsun/

Nathan
> Date: Tue, 10 Apr 2012 18:03:11 +0100
> From: [e-mail]
> To: [e-mail]
> Subject: [OpenBIOS] OT: Brooktree IC used in cg3 graphics framebuffer?
>
> Hi all,
>
> A slightly off-topic question, however there may be some people on the 
> list who will know the answer to this: what was the number of the 
> Brooktree IC used on the cg3 framebuffer? According to various sources, 
> it looks like the BT458 was used on the cg6 - is this the same as the cg3?
>
> ATB,
>
> Mark.

[Bob Breuer]

On 4/10/2012 4:15 PM, Nathan Kunkee wrote:
> Hi,
>
> Not an answer to your question, but perhaps helpful:
>
> Alan Coopersmith managed to get the source for XSun released, and it
> includes the cg6 driver. You can see it here:
> http://dlc.sun.com/osol/x/downloads/openXsun/

What license is this released under?  (Hopefully something GPL
compatible.)  And is there anything in there for the cg14 framebuffer,
or would that only exist in Xsun24?

Bob
> Nathan
> > Date: Tue, 10 Apr 2012 18:03:11 +0100
> > From: [e-mail]
> > To: [e-mail]
> > Subject: [OpenBIOS] OT: Brooktree IC used in cg3 graphics framebuffer?
> >
> > Hi all,
> >
> > A slightly off-topic question, however there may be some people on the
> > list who will know the answer to this: what was the number of the
> > Brooktree IC used on the cg3 framebuffer? According to various sources,
> > it looks like the BT458 was used on the cg6 - is this the same as
>
> the cg3?
> > ATB,
> >
> > Mark.

[Nathan Kunkee]

Hi Bob,

I found the email where Alan announced this, but don't see a license off hand. I think it was a BSD-like don't-take-credit-don't-point-fingers-use-at-own-risk but don't see anything. Hopefully Alan isn't too sideswiped by this and can chime in.
http://mail.opensolaris.org/pipermail/xwin-discuss/2010-July/004624.html

As I recall with the announcement, one of the restrictions on releasing the source was that only the cg6 driver would be provided, since it was already part of the vendor SDK.

Nathan
> Date: Wed, 11 Apr 2012 11:45:15 -0500
> From: [e-mail]
> To: [e-mail]
> CC: [e-mail]; [e-mail]
> Subject: Re: [OpenBIOS] OT: Brooktree IC used in cg3 graphics framebuffer?
>
> On 4/10/2012 4:15 PM, Nathan Kunkee wrote:
> > Hi,
> >
> > Not an answer to your question, but perhaps helpful:
> >
> > Alan Coopersmith managed to get the source for XSun released, and it
> > includes the cg6 driver. You can see it here:
> > http://dlc.sun.com/osol/x/downloads/openXsun/
>
> What license is this released under?  (Hopefully something GPL
> compatible.)  And is there anything in there for the cg14 framebuffer,
> or would that only exist in Xsun24?
>
> Bob
> > Nathan
> > > Date: Tue, 10 Apr 2012 18:03:11 +0100
> > > From: [e-mail]
> > > To: [e-mail]
> > > Subject: [OpenBIOS] OT: Brooktree IC used in cg3 graphics framebuffer?
> > >
> > > Hi all,
> > >
> > > A slightly off-topic question, however there may be some people on the
> > > list who will know the answer to this: what was the number of the
> > > Brooktree IC used on the cg3 framebuffer? According to various sources,
> > > it looks like the BT458 was used on the cg6 - is this the same as
> >
> > the cg3?
> > > ATB,
> > >
> > > Mark.

[Alan Coopersmith]

The Xsun sources we released via opensolaris.org have the licenses listed in the
source files.   Everything there should be MIT/X11 licensed, or a close
equivalent such as BSD - certainly everything under Sun copyright was released
under the MIT/X11 license, other sources mostly came from upstream X Consortium
releases.

The cg3 driver wasn't present in the sources this release came from, since I
released the last Xsun sources from the Solaris Nevada development train, many
years after cg3 support was removed from Solaris.

-Alan Coopersmith-              [e-mail]
     Oracle Solaris Engineering - http://blogs.oracle.com/alanc

On 04/11/12 11:53 AM, Nathan Kunkee wrote:
> Hi Bob,
>
> I found the email where Alan announced this, but don't see a license off hand. I
> think it was a BSD-like don't-take-credit-don't-point-fingers-use-at-own-risk
> but don't see anything. Hopefully Alan isn't too sideswiped by this and can
> chime in.
> http://mail.opensolaris.org/pipermail/xwin-discuss/2010-July/004624.html
>
> As I recall with the announcement, one of the restrictions on releasing the
> source was that only the cg6 driver would be provided, since it was already part
> of the vendor SDK.
>
> Nathan
> > Date: Wed, 11 Apr 2012 11:45:15 -0500
> > From: [e-mail]
> > To: [e-mail]
> > CC: [e-mail]; [e-mail]
> > Subject: Re: [OpenBIOS] OT: Brooktree IC used in cg3 graphics framebuffer?
> >
> > On 4/10/2012 4:15 PM, Nathan Kunkee wrote:
> > > Hi,
> > >
> > > Not an answer to your question, but perhaps helpful:
> > >
> > > Alan Coopersmith managed to get the source for XSun released, and it
> > > includes the cg6 driver. You can see it here:
> > > http://dlc.sun.com/osol/x/downloads/openXsun/
> >
> > What license is this released under? (Hopefully something GPL
> > compatible.) And is there anything in there for the cg14 framebuffer,
> > or would that only exist in Xsun24?
> >
> > Bob
> > > Nathan
> > > > Date: Tue, 10 Apr 2012 18:03:11 +0100
> > > > From: [e-mail]
> > > > To: [e-mail]
> > > > Subject: [OpenBIOS] OT: Brooktree IC used in cg3 graphics framebuffer?
> > > >
> > > > Hi all,
> > > >
> > > > A slightly off-topic question, however there may be some people on the
> > > > list who will know the answer to this: what was the number of the
> > > > Brooktree IC used on the cg3 framebuffer? According to various sources,
> > > > it looks like the BT458 was used on the cg6 - is this the same as
> > >
> > > the cg3?
> > > > ATB,
> > > >
> > > > Mark.

[Mark Cave-Ayland]

On 11/04/12 20:48, Alan Coopersmith wrote:
> The Xsun sources we released via opensolaris.org have the licenses listed in the
> source files.   Everything there should be MIT/X11 licensed, or a close
> equivalent such as BSD - certainly everything under Sun copyright was released
> under the MIT/X11 license, other sources mostly came from upstream X Consortium
> releases.
>
> The cg3 driver wasn't present in the sources this release came from, since I
> released the last Xsun sources from the Solaris Nevada development train, many
> years after cg3 support was removed from Solaris.
>
> -Alan Coopersmith-              [e-mail]
>     Oracle Solaris Engineering - http://blogs.oracle.com/alanc

In terms of trying to implement a cg6 buffer emulator for QEMU, would 
there be a problem with just studying the code to determine the 
behaviour of the hardware blitter? I expect it would be extremely 
unlikely that any direct code copying would take place with the 
exception of a few defined constants for programming the hardware.

ATB,

Mark.

[Mark Morgan Lloyd]

Mark Cave-Ayland wrote:
> Hi all,
>
> A slightly off-topic question, however there may be some people on the 
> list who will know the answer to this: what was the number of the 
> Brooktree IC used on the cg3 framebuffer? According to various sources, 
> it looks like the BT458 was used on the cg6 - is this the same as the cg3?

Nothing's off-topic to the Spanish Inquisition :-)

Found one in a SPARCstation IPC in the museum. "Campus Color Frame 
Buffer" FCC ID GWV76CG3, bearing a Bt458LPJ110.

[Bob Breuer]

On 4/10/2012 12:03 PM, Mark Cave-Ayland wrote:
> Hi all,
>
> A slightly off-topic question, however there may be some people on the
> list who will know the answer to this: what was the number of the
> Brooktree IC used on the cg3 framebuffer? According to various
> sources, it looks like the BT458 was used on the cg6 - is this the
> same as the cg3?
> From the pictures on http://www.sunshack.org/data/sunpix_sbus.html ,

both the 501-1415 (cg3) and 501-1672 (cg6) use the BT458.

Bob

[Mark Cave-Ayland]

On 10/04/12 18:03, Mark Cave-Ayland wrote:
> Hi all,
>
> A slightly off-topic question, however there may be some people on the
> list who will know the answer to this: what was the number of the
> Brooktree IC used on the cg3 framebuffer? According to various sources,
> it looks like the BT458 was used on the cg6 - is this the same as the cg3?

Brilliant! Thanks to everyone who replied and confirmed this for me!

ATB,

Mark.