Date: Sat, 01 Jan 2005 12:41:24 +1000 From: Peter Grehan <grehan@freebsd.org> To: Marcel Moolenaar <marcel@xcllnt.net> Cc: freebsd-ppc@freebsd.org Subject: Re: PPC miniinst.iso available Message-ID: <41D60DD4.4000606@freebsd.org> In-Reply-To: <105D5D9D-5B8C-11D9-AD09-000D93C47836@xcllnt.net> References: <41D4B6BD.3050705@freebsd.org> <105D5D9D-5B8C-11D9-AD09-000D93C47836@xcllnt.net>
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Hi Marcel, > I booted the ISO on my G4 powerbook without any problems. I noticed that > there's a Z8530 to which zs(4) attaches. Is the keyboard and mouse attached > to the Z8530 (i have no idea yet how to figure this out myself)? Actually ... no :( An external microcontroller hooks up to the internal keyboard/mouse, and this mcu is connected to a 6522 cell in the MacIO asic. The ADB protocol is implemented on top of a simple message passing protocol with the 6522. An excellent example of technology re-use, since this harks all the way back to the '87 Mac SE. I'm slowly getting the pieces together for this. It's not exactly user-friendly to have to hook up an external keyboard to a notebook :( > If so, I'll try to make the keyboard and mouse work with uart(4). I need to > fix the Z8530 support in uart(4) anyway and can probably use the sparc64 > keyboard support to bootstrap the support on PPC... One of the 8530 ports is connected to the external modem. I don't think this works currently as the modem chip has to be enabled with some secret register bits in the MacIO asic. However, NetBSD has the code so I can pull it in. It's been on my list for a long while to cut over to the uart driver... later, Peter.
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