From owner-freebsd-arch@FreeBSD.ORG Sun Jun 20 17:57:42 2004 Return-Path: Delivered-To: freebsd-arch@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 05F5916A4CE for ; Sun, 20 Jun 2004 17:57:42 +0000 (GMT) Received: from ns1.xcllnt.net (209-128-86-226.bayarea.net [209.128.86.226]) by mx1.FreeBSD.org (Postfix) with ESMTP id 5A3B343D4C for ; Sun, 20 Jun 2004 17:57:41 +0000 (GMT) (envelope-from marcel@xcllnt.net) Received: from dhcp50.pn.xcllnt.net (dhcp50.pn.xcllnt.net [192.168.4.250]) by ns1.xcllnt.net (8.12.11/8.12.11) with ESMTP id i5KHvCUf076982; Sun, 20 Jun 2004 10:57:12 -0700 (PDT) (envelope-from marcel@piii.pn.xcllnt.net) Received: from dhcp50.pn.xcllnt.net (localhost [127.0.0.1]) i5KHvBJn001872; Sun, 20 Jun 2004 10:57:11 -0700 (PDT) (envelope-from marcel@dhcp50.pn.xcllnt.net) Received: (from marcel@localhost) by dhcp50.pn.xcllnt.net (8.12.11/8.12.11/Submit) id i5KHvBJ2001871; Sun, 20 Jun 2004 10:57:11 -0700 (PDT) (envelope-from marcel) Date: Sun, 20 Jun 2004 10:57:11 -0700 From: Marcel Moolenaar To: "M. Warner Losh" Message-ID: <20040620175711.GA1823@dhcp50.pn.xcllnt.net> References: <20040619.145736.91276883.imp@bsdimp.com> <82937.1087721102@critter.freebsd.dk> <20040620.105000.106880101.imp@bsdimp.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20040620.105000.106880101.imp@bsdimp.com> User-Agent: Mutt/1.4.2.1i cc: arch@freebsd.org cc: phk@phk.freebsd.dk Subject: Re: [REVIEW] move tty lock/initial up in the stack X-BeenThere: freebsd-arch@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: Discussion related to FreeBSD architecture List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 20 Jun 2004 17:57:42 -0000 On Sun, Jun 20, 2004 at 10:50:00AM -0600, M. Warner Losh wrote: > > Of course I'm reimplementing the Cyclades Z driver to try to use > uart, which is why I'm getting curious. I don't know if this will > wind up working or not, but since 95% of the hardware interface is two > circular buffers in memory, which does seem to map mostly onto > Marcel's model. Time will tell... I also have porting the stallion > driver to current. I can do this by a simple hack on the old driver, > or a rewrite. I'll use my Z experience to decide. You probably want to review my uart(4) notes WRT multiport cards: http://wiki.daemon.li/index.pl?Uart(4) This may or may not align with your thinking. If not, maybe we should quickly touch bases... PS: I just added cyclades to the list of references there. Feel free to add more or replace this with a better one. -- Marcel Moolenaar USPA: A-39004 marcel@xcllnt.net