From owner-freebsd-hackers  Mon May  8 13:31:54 2000
Delivered-To: freebsd-hackers@freebsd.org
Received: from rover.village.org (rover.village.org [204.144.255.49])
	by hub.freebsd.org (Postfix) with ESMTP id 9D3ED37B822
	for <freebsd-hackers@FreeBSD.ORG>; Mon,  8 May 2000 13:31:46 -0700 (PDT)
	(envelope-from imp@harmony.village.org)
Received: from harmony.village.org (harmony.village.org [10.0.0.6])
	by rover.village.org (8.9.3/8.9.3) with ESMTP id OAA45537;
	Mon, 8 May 2000 14:31:42 -0600 (MDT)
	(envelope-from imp@harmony.village.org)
Received: from harmony.village.org (localhost.village.org [127.0.0.1]) by harmony.village.org (8.9.3/8.8.3) with ESMTP id OAA79569; Mon, 8 May 2000 14:31:27 -0600 (MDT)
Message-Id: <200005082031.OAA79569@harmony.village.org>
To: Duncan Barclay <dmlb@ragnet.demon.co.uk>
Subject: Re: Getting an aligned IO port 
Cc: freebsd-hackers@FreeBSD.ORG
In-reply-to: Your message of "Mon, 08 May 2000 18:31:32 BST."
		<XFMail.000508183132.dmlb@computer.my.domain> 
References: <XFMail.000508183132.dmlb@computer.my.domain>  
Date: Mon, 08 May 2000 14:31:27 -0600
From: Warner Losh <imp@village.org>
Sender: owner-freebsd-hackers@FreeBSD.ORG
Precedence: bulk
X-Loop: FreeBSD.ORG

In message <XFMail.000508183132.dmlb@computer.my.domain> Duncan Barclay writes:
: How can get a 16byte aligned ISA IO port from the resource allocator? I need
: this to get if_xe working for Realport cards.
: 
: This aspect of the driver is nothing to do with Warner's changes to PCCard.

I'm going to have to commit the byte alignment stuff that was posted a
while ago committed.

Until then, you request 16 bytes from the system for the ioports.
Since this is pccard, you'll likely want to map it in the 0x100 -
0x3ff range:
	start = 0x100;
	end = 0x3ff;
	rid = 1;		/* 0 is managed by pccardd */
	do {
		res = bus_alloc_resource(dev, SYS_RES_IOPORT, &rid, start,
			end, 16, RF_ACTIVE);
		if (res == 0)
			break;		/* we failed */
		if ((rman_get_start(res) & 0xf) == 0)
			break;		/* good */
		start = (rman_get_start(res) + 15) & ~0xf;
	} while (1);

Warner


To Unsubscribe: send mail to majordomo@FreeBSD.org
with "unsubscribe freebsd-hackers" in the body of the message