From mboxrd@z Thu Jan 1 00:00:00 1970 Message-Id: <200007282231.XAA13942@hyperion.valhalla.net> Date: Fri, 28 Jul 2000 23:31:57 +0100 Subject: Re: internal speakers on Pismo From: "Iain Sandoe" To: Benjamin Herrenschmidt , matthias pfisterer , linuxppc-dev@lists.linuxppc.org Mime-version: 1.0 Content-type: text/plain; charset="US-ASCII" Sender: owner-linuxppc-dev@lists.linuxppc.org List-Id: Hi Ben, > Ok, I got it working here too. I've pushed changes in my rsync tree > (dmasound 2.2, I'll take care of 2.4 later, I'll send you patches, Iain). :-) > Basically, clearing the additional registers is not what made it work as > I originally expected ! What made it work was _not_ to enable the > parallel port output. However, it is needed on some machines. So what I > did was to enable it conditionally in a way similar to what Darwin does. In some of the Apple code there is a statement about initial reg. states. I was intending to check that we had got these set - however, what you've put here makes me wonder if that'll break something else. > I also fixed up detection of screamer chips. Thanks, that was top of my list of things to do... > Oddly, the master volume doesn't work (but the speaker volume does). Hmmm... master vol works OK on the G3 minitower - but not on the 9600 or the Lombard (IIRC both AWACS V2) > Also, Apple code has some weird thing: They detect two different device- > id's for new iMacs (DV/SE). One is an inverted version. But they only > enable the parallel output one of them. I don't know if it's normal or if > it's actually a bug in their code. I did the same thing but left the case > of normal iMacDV in comments, so users of this machine can try and see if > it helps. I suspect that like other iMacs, there's an I2C amplifier/SRS > module that needs to be setup too, but I'm not completely sure. I FW'd a copy of our summary the other day to the guy working on I2C - no reply get. Iain. ** Sent via the linuxppc-dev mail list. See http://lists.linuxppc.org/