>Message: 5 >To: [EMAIL PROTECTED] >Subject: Re: [Xpert]Rendition v2x00 >From: "Charles C. Fu" <[EMAIL PROTECTED]> >Date: 30 Sep 2002 16:02:34 -0700 >Reply-To: [EMAIL PROTECTED] > >On 28 Sep 2002, Phil T wrote: > I'm fixing the acceleration in the rendition driver >and I need some > info on the STATUS register - flags, masks etc. >I'm polling it in > the Sync function in XAA for idle status. Any help? > >(Brings back memories of talking to Rendition about >writing some >accelerated X drivers way back when....) > >I presume you are talking about the values read >after a sync? > >Calling sync was always something to be avoided (for >performance >reasons) and the meaning of the resulting output >known to only a few. >As far as I am aware, that information was never >disclosed (and, yes, >I did ask about it myself at one point). So, what >exactly are you >trying to do that you need to call sync, and is >there absolutely no >way to avoid it?
I was talking about XAA's Sync, the current code syncs the pixel engine in somewhat slow manner - it restarts the risc. I'm using the SyncPixelEngine func found in the microcode I need to know when it's completed to return. >If you really, really must call sync and make sense >of the returned >value, you might try to ask some old Rendition >people. However, I >don't know what they would be allowed to disclose at >this point. I >would start with Stefan Podell--although Stefan >himself was not a >hardware guy and probably wouldn't know this >information anyways, he >probably knows who to contact specifically (Walt >Donovan?) and might >know how to get a hold of them. > >You can easily find some contact information for >Stefan with a minimal >web search, but feel free to email me if you need >help. > Thanks, but I think I've guessed them after some experiments. At least XAA's Sync works now :) >Chances are, however, that you will not be able to >get this >information. > >-ccwf __________________________________________________ Do you Yahoo!? New DSL Internet Access from SBC & Yahoo! http://sbc.yahoo.com _______________________________________________ Xpert mailing list [EMAIL PROTECTED] http://XFree86.Org/mailman/listinfo/xpert
