Date: Mon, 21 Feb 2000 08:00:41 -0000 (GMT) From: Duncan Barclay <dmlb@ragnet.demon.co.uk> To: Warner Losh <imp@village.org> Cc: freebsd-mobile@FreeBSD.ORG, Scott Mitchell <s.mitchell@computer.org> Subject: Re: Raylink driver/Mapping attribute memory Message-ID: <XFMail.000221080041.dmlb@computer.my.domain> In-Reply-To: <200002210622.XAA18049@harmony.village.org>
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On 21-Feb-00 Warner Losh wrote: > In message <20000220144552.22305@lungfish.freeserve.co.uk> Scott Mitchell > writes: >: AFAIK no approved way to do it in 3.x. I don't think the Xircom >: hack actually breaks anything; it's just non-portable, hard to maintain and >: plain ugly :-) There will be a clean interface to pccard memory in 4.x, >: but it's not implemented yet (is that right, Warner?) > > Well, it isn't completely implemented yet. I have some preliminary > stuff that doesn't work yet. I've wanted to get my cdrom and CF cards > working first, which I've done and sent patches off to be reviewed... > > For 4.0[*] I'm not going to provide generic CIS parting routines, but > will enable the drivers to map a memory window into either the common > or attribute memory. Driver writers will be able to use this in any > way they see fit. I plan on mapping at most 16k to be shared between > the various pccards on a pcic in the system. Can I urge you provide a mechanism to enable mappng of both attribute and common memory - i.e. at least two mapped regions per card. The Raylink needs this - it has the 4k of attribute space in which a small (16bytes) register set appears at an offset of 0x0F00, and a 48k common memory section for tx/rx buffers and large structure based control. I don't need CIS parsing routines - just access to the register set. > This is the last item on my 4.0 wish list. The others are done or > deferred at this point... > > Warner > > [*] Subject, of course, to the Uberhubbard's approval. ;-) Duncan --- ________________________________________________________________________ Duncan Barclay | God smiles upon the little children, dmlb@ragnet.demon.co.uk | the alcoholics, and the permanently stoned. ________________________________________________________________________ To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-mobile" in the body of the message
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