2 * Copyright (c) 1994 Charles Hannum. All rights reserved.
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
7 * 1. Redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution.
12 * 3. All advertising materials mentioning features or use of this software
13 * must display the following acknowledgement:
14 * This product includes software developed by Charles Hannum.
15 * 4. The name of the author may not be used to endorse or promote products
16 * derived from this software without specific prior written permission.
18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
19 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
20 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
21 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
22 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
23 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
24 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
25 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
26 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
27 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
30 #include <sys/cdefs.h>
31 __FBSDID("$FreeBSD$");
34 * Common code for dealing with 3COM ethernet cards.
37 #include <sys/param.h>
38 #include <sys/systm.h>
39 #include <sys/kernel.h>
40 #include <sys/module.h>
42 #include <machine/cpufunc.h>
44 #include <i386/isa/elink.h>
47 * Issue a `global reset' to all cards. We have to be careful to do this only
48 * once during autoconfig, to prevent resetting boards that have already been
58 outb(ELINK_ID_PORT, ELINK_RESET);
60 outb(ELINK_ID_PORT, 0);
61 outb(ELINK_ID_PORT, 0);
67 * The `ID sequence' is really just snapshots of an 8-bit CRC register as 0
68 * bits are shifted in. Different board types use different polynomials.
77 for (i = 255; i; i--) {
78 outb(ELINK_ID_PORT, c);
87 static moduledata_t elink_mod = {
88 "elink",/* module name */
89 NULL, /* event handler */
93 DECLARE_MODULE(elink, elink_mod, SI_SUB_PSEUDO, SI_ORDER_ANY);
94 MODULE_VERSION(elink, 1);