2 * Copyright (c) 2009, M. Warner Losh
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice unmodified, this list of conditions, and the following
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 #include <sys/cdefs.h>
28 __FBSDID("$FreeBSD$");
31 * driver for internal phy in the AX88x9x chips.
34 #include <sys/param.h>
35 #include <sys/systm.h>
36 #include <sys/kernel.h>
37 #include <sys/module.h>
38 #include <sys/socket.h>
42 #include <net/if_media.h>
44 #include <dev/mii/mii.h>
45 #include <dev/mii/miivar.h>
48 #include <dev/mii/axphyreg.h>
50 #include "miibus_if.h"
52 static int axphy_probe(device_t dev);
53 static int axphy_attach(device_t dev);
55 static device_method_t axphy_methods[] = {
56 /* device interface */
57 DEVMETHOD(device_probe, axphy_probe),
58 DEVMETHOD(device_attach, axphy_attach),
59 DEVMETHOD(device_detach, mii_phy_detach),
60 DEVMETHOD(device_shutdown, bus_generic_shutdown),
64 static devclass_t axphy_devclass;
66 static driver_t axphy_driver = {
69 sizeof(struct mii_softc)
72 DRIVER_MODULE(axphy, miibus, axphy_driver, axphy_devclass, 0, 0);
74 static int axphy_service(struct mii_softc *, struct mii_data *, int);
75 static void axphy_status(struct mii_softc *);
77 static const struct mii_phydesc axphys[] = {
78 MII_PHY_DESC(ASIX, AX88X9X),
83 axphy_probe(device_t dev)
86 return (mii_phy_dev_probe(dev, axphys, BUS_PROBE_DEFAULT));
90 axphy_attach(device_t dev)
93 struct mii_attach_args *ma;
96 sc = device_get_softc(dev);
97 ma = device_get_ivars(dev);
98 sc->mii_dev = device_get_parent(dev);
99 mii = device_get_softc(sc->mii_dev);
100 LIST_INSERT_HEAD(&mii->mii_phys, sc, mii_list);
102 sc->mii_inst = mii->mii_instance;
103 sc->mii_phy = ma->mii_phyno;
104 sc->mii_service = axphy_service;
106 sc->mii_flags |= MIIF_NOISOLATE;
111 sc->mii_capabilities = PHY_READ(sc, MII_BMSR) & ma->mii_capmask;
112 device_printf(dev, " ");
113 mii_phy_add_media(sc);
116 MIIBUS_MEDIAINIT(sc->mii_dev);
117 mii_phy_setmedia(sc);
123 axphy_service(struct mii_softc *sc, struct mii_data *mii, int cmd)
125 struct ifmedia_entry *ife = mii->mii_media.ifm_cur;
130 if (IFM_INST(ife->ifm_media) != sc->mii_inst)
135 if (IFM_INST(ife->ifm_media) != sc->mii_inst) {
136 reg = PHY_READ(sc, MII_BMCR);
137 PHY_WRITE(sc, MII_BMCR, reg | BMCR_ISO);
142 * If the interface is not up, don't do anything.
144 if ((mii->mii_ifp->if_flags & IFF_UP) == 0)
147 mii_phy_setmedia(sc);
151 if (IFM_INST(ife->ifm_media) != sc->mii_inst)
153 if (mii_phy_tick(sc) == EJUSTRETURN)
158 /* Update the media status. */
161 /* Callback if something changed. */
162 mii_phy_update(sc, cmd);
167 axphy_status(struct mii_softc *sc)
169 struct mii_data *mii = sc->mii_pdata;
170 struct ifmedia_entry *ife = mii->mii_media.ifm_cur;
173 mii->mii_media_status = IFM_AVALID;
174 mii->mii_media_active = IFM_ETHER;
176 bmsr = PHY_READ(sc, MII_BMSR) | PHY_READ(sc, MII_BMSR);
177 if (bmsr & BMSR_LINK)
178 mii->mii_media_status |= IFM_ACTIVE;
180 bmcr = PHY_READ(sc, MII_BMCR);
181 if (bmcr & BMCR_ISO) {
182 mii->mii_media_active |= IFM_NONE;
183 mii->mii_media_status = 0;
187 if (bmcr & BMCR_LOOP)
188 mii->mii_media_active |= IFM_LOOP;
190 if (bmcr & BMCR_AUTOEN) {
191 if ((bmsr & BMSR_ACOMP) == 0) {
192 mii->mii_media_active |= IFM_NONE;
197 scr = PHY_READ(sc, MII_AXPHY_SCR);
199 mii->mii_media_active |= IFM_100_TX;
201 mii->mii_media_active |= IFM_10_T;
203 mii->mii_media_active |= IFM_FDX;
206 mii->mii_media_active = ife->ifm_media;