2 * SPDX-License-Identifier: BSD-4-Clause
4 * Copyright (c) 2000 Berkeley Software Design, Inc.
5 * Copyright (c) 1997, 1998, 1999, 2000
6 * Bill Paul <wpaul@osd.bsdi.com>. All rights reserved.
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 * 3. All advertising materials mentioning features or use of this software
17 * must display the following acknowledgement:
18 * This product includes software developed by Bill Paul.
19 * 4. Neither the name of the author nor the names of any co-contributors
20 * may be used to endorse or promote products derived from this software
21 * without specific prior written permission.
23 * THIS SOFTWARE IS PROVIDED BY Bill Paul AND CONTRIBUTORS ``AS IS'' AND
24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
26 * ARE DISCLAIMED. IN NO EVENT SHALL Bill Paul OR THE VOICES IN HIS HEAD
27 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
28 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
29 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
30 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
31 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
32 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
33 * THE POSSIBILITY OF SUCH DAMAGE.
36 #include <sys/cdefs.h>
37 __FBSDID("$FreeBSD$");
40 * driver for homePNA PHYs
41 * This is really just a stub that allows us to identify homePNA-based
42 * transceicers and display the link status. MII-based homePNA PHYs
43 * only support one media type and no autonegotiation. If we were
44 * really clever, we could tweak some of the vendor-specific registers
45 * to optimize the link.
48 #include <sys/param.h>
49 #include <sys/systm.h>
50 #include <sys/kernel.h>
51 #include <sys/socket.h>
52 #include <sys/errno.h>
53 #include <sys/module.h>
57 #include <net/if_media.h>
59 #include <dev/mii/mii.h>
60 #include <dev/mii/miivar.h>
63 #include "miibus_if.h"
65 static int pnaphy_probe(device_t);
66 static int pnaphy_attach(device_t);
68 static device_method_t pnaphy_methods[] = {
69 /* device interface */
70 DEVMETHOD(device_probe, pnaphy_probe),
71 DEVMETHOD(device_attach, pnaphy_attach),
72 DEVMETHOD(device_detach, mii_phy_detach),
73 DEVMETHOD(device_shutdown, bus_generic_shutdown),
77 static devclass_t pnaphy_devclass;
79 static driver_t pnaphy_driver = {
82 sizeof(struct mii_softc)
85 DRIVER_MODULE(pnaphy, miibus, pnaphy_driver, pnaphy_devclass, 0, 0);
87 static int pnaphy_service(struct mii_softc *, struct mii_data *,int);
89 static const struct mii_phydesc pnaphys[] = {
90 MII_PHY_DESC(yyAMD, 79c901home),
94 static const struct mii_phy_funcs pnaphy_funcs = {
101 pnaphy_probe(device_t dev)
104 return (mii_phy_dev_probe(dev, pnaphys, BUS_PROBE_DEFAULT));
108 pnaphy_attach(device_t dev)
111 mii_phy_dev_attach(dev, MIIF_NOISOLATE | MIIF_IS_HPNA |
112 MIIF_NOMANPAUSE, &pnaphy_funcs, 1);
117 pnaphy_service(struct mii_softc *sc, struct mii_data *mii, int cmd)
119 struct ifmedia_entry *ife = mii->mii_media.ifm_cur;
126 switch (IFM_SUBTYPE(ife->ifm_media)) {
128 mii_phy_setmedia(sc);
136 if (mii_phy_tick(sc) == EJUSTRETURN)
141 /* Update the media status. */
143 if (IFM_SUBTYPE(mii->mii_media_active) == IFM_10_T)
144 mii->mii_media_active = IFM_ETHER | IFM_HPNA_1;
146 /* Callback if something changed. */
147 mii_phy_update(sc, cmd);