Date: Wed, 20 Aug 2003 09:08:02 +0900 From: Hidetoshi Shimokawa <simokawa@sat.t.u-tokyo.ac.jp> To: Katsushi Kobayashi <ikob@koganei.wide.ad.jp> Cc: freebsd-firewire@freebsd.org Subject: Re: OHCI 1.2 Message-ID: <ybs1xvhjin1.wl@ett.sat.t.u-tokyo.ac.jp> In-Reply-To: <1236D9B7-D266-11D7-B5E4-000393D603A4@koganei.wide.ad.jp> References: <ybs3cfxk69v.wl@ett.sat.t.u-tokyo.ac.jp> <1236D9B7-D266-11D7-B5E4-000393D603A4@koganei.wide.ad.jp>
next in thread | previous in thread | raw e-mail | index | archive | help
At Wed, 20 Aug 2003 01:56:26 +0900, Katsushi Kobayashi wrote: > > What chipset is your target ? > > I am not sure whether OHCI2.0 is ready or not. > > For example, TI's 1394b link layer controller (TSB82AA2) has some > special > registers the extension of OHCI1.1. TI called it as OHCI1.1+. > > Thanks, Yes, the target is TSB82AA2. The OHCI1.2 is listed as reference in its datasheet(1.3 Related Documents). It seems that there are some extenstions(*1) in stream packet format in OHCI1.1+/1.2 rather than registers. As you know, OHCI packet format is somewhat different from 1394 packet format. Do you have any information about difference between 1.1 and 1.1+ or 1.2? (*) I observed some strange behavior if we don't fill reserved field with zero. > > On 2003.Aug.20, at 12:37 AM, Hidetoshi Shimokawa wrote: > > > Does anyone know where I can get the 1394 OHCI 1.2 specification? > > > > 1394b chips seems to use some fields reserved in OHCI1.1. > > /\ Hidetoshi Shimokawa \/ simokawa@sat.t.u-tokyo.ac.jp PGP public key: http://www.sat.t.u-tokyo.ac.jp/~simokawa/pgp.html
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?ybs1xvhjin1.wl>