1 /* OpenBSD: lxtphy.c,v 1.5 2000/08/26 20:04:17 nate Exp */
2 /* NetBSD: lxtphy.c,v 1.19 2000/02/02 23:34:57 thorpej Exp */
5 * SPDX-License-Identifier: BSD-2-Clause-NetBSD
7 * Copyright (c) 1998, 1999 The NetBSD Foundation, Inc.
10 * This code is derived from software contributed to The NetBSD Foundation
11 * by Jason R. Thorpe of the Numerical Aerospace Simulation Facility,
12 * NASA Ames Research Center.
14 * Redistribution and use in source and binary forms, with or without
15 * modification, are permitted provided that the following conditions
17 * 1. Redistributions of source code must retain the above copyright
18 * notice, this list of conditions and the following disclaimer.
19 * 2. Redistributions in binary form must reproduce the above copyright
20 * notice, this list of conditions and the following disclaimer in the
21 * documentation and/or other materials provided with the distribution.
23 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
24 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
25 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
26 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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 THE
33 * POSSIBILITY OF SUCH DAMAGE.
37 * Copyright (c) 1997 Manuel Bouyer. All rights reserved.
39 * Redistribution and use in source and binary forms, with or without
40 * modification, are permitted provided that the following conditions
42 * 1. Redistributions of source code must retain the above copyright
43 * notice, this list of conditions and the following disclaimer.
44 * 2. Redistributions in binary form must reproduce the above copyright
45 * notice, this list of conditions and the following disclaimer in the
46 * documentation and/or other materials provided with the distribution.
48 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
49 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
50 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
51 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
52 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
53 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
54 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
55 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
56 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
57 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
60 #include <sys/cdefs.h>
61 __FBSDID("$FreeBSD$");
64 * driver for Level One's LXT-970 ethernet 10/100 PHY
65 * datasheet from www.level1.com
68 #include <sys/param.h>
69 #include <sys/systm.h>
70 #include <sys/kernel.h>
71 #include <sys/socket.h>
72 #include <sys/errno.h>
73 #include <sys/module.h>
77 #include <net/if_media.h>
79 #include <dev/mii/mii.h>
80 #include <dev/mii/miivar.h>
83 #include <dev/mii/lxtphyreg.h>
85 #include "miibus_if.h"
87 static int lxtphy_probe(device_t);
88 static int lxtphy_attach(device_t);
90 static device_method_t lxtphy_methods[] = {
91 /* device interface */
92 DEVMETHOD(device_probe, lxtphy_probe),
93 DEVMETHOD(device_attach, lxtphy_attach),
94 DEVMETHOD(device_detach, mii_phy_detach),
95 DEVMETHOD(device_shutdown, bus_generic_shutdown),
99 static devclass_t lxtphy_devclass;
101 static driver_t lxtphy_driver = {
104 sizeof(struct mii_softc)
107 DRIVER_MODULE(lxtphy, miibus, lxtphy_driver, lxtphy_devclass, 0, 0);
109 static int lxtphy_service(struct mii_softc *, struct mii_data *, int);
110 static void lxtphy_status(struct mii_softc *);
111 static void lxtphy_reset(struct mii_softc *);
112 static void lxtphy_set_tp(struct mii_softc *);
113 static void lxtphy_set_fx(struct mii_softc *);
115 static const struct mii_phydesc lxtphys[] = {
116 MII_PHY_DESC(xxLEVEL1, LXT970),
120 static const struct mii_phy_funcs lxtphy_funcs = {
127 lxtphy_probe(device_t dev)
130 return (mii_phy_dev_probe(dev, lxtphys, BUS_PROBE_DEFAULT));
134 lxtphy_attach(device_t dev)
136 struct mii_softc *sc;
138 sc = device_get_softc(dev);
140 mii_phy_dev_attach(dev, MIIF_NOMANPAUSE, &lxtphy_funcs, 0);
144 sc->mii_capabilities = PHY_READ(sc, MII_BMSR) & sc->mii_capmask;
145 device_printf(dev, " ");
147 #define ADD(m) ifmedia_add(&sc->mii_pdata->mii_media, (m), 0, NULL)
148 ADD(IFM_MAKEWORD(IFM_ETHER, IFM_100_FX, 0, sc->mii_inst));
149 printf("100baseFX, ");
150 ADD(IFM_MAKEWORD(IFM_ETHER, IFM_100_FX, IFM_FDX, sc->mii_inst));
151 printf("100baseFX-FDX, ");
154 mii_phy_add_media(sc);
157 MIIBUS_MEDIAINIT(sc->mii_dev);
162 lxtphy_service(struct mii_softc *sc, struct mii_data *mii, int cmd)
164 struct ifmedia_entry *ife = mii->mii_media.ifm_cur;
171 if (IFM_SUBTYPE(ife->ifm_media) == IFM_100_FX)
176 mii_phy_setmedia(sc);
180 if (mii_phy_tick(sc) == EJUSTRETURN)
185 /* Update the media status. */
188 /* Callback if something changed. */
189 mii_phy_update(sc, cmd);
194 lxtphy_status(struct mii_softc *sc)
196 struct mii_data *mii = sc->mii_pdata;
197 struct ifmedia_entry *ife = mii->mii_media.ifm_cur;
200 mii->mii_media_status = IFM_AVALID;
201 mii->mii_media_active = IFM_ETHER;
204 * Get link status from the CSR; we need to read the CSR
205 * for media type anyhow, and the link status in the CSR
206 * doens't latch, so fewer register reads are required.
208 csr = PHY_READ(sc, MII_LXTPHY_CSR);
210 mii->mii_media_status |= IFM_ACTIVE;
212 bmcr = PHY_READ(sc, MII_BMCR);
213 if (bmcr & BMCR_ISO) {
214 mii->mii_media_active |= IFM_NONE;
215 mii->mii_media_status = 0;
219 if (bmcr & BMCR_LOOP)
220 mii->mii_media_active |= IFM_LOOP;
222 if (bmcr & BMCR_AUTOEN) {
223 bmsr = PHY_READ(sc, MII_BMSR) | PHY_READ(sc, MII_BMSR);
224 if ((bmsr & BMSR_ACOMP) == 0) {
225 /* Erg, still trying, I guess... */
226 mii->mii_media_active |= IFM_NONE;
230 mii->mii_media_active |= IFM_100_TX;
232 mii->mii_media_active |= IFM_10_T;
233 if (csr & CSR_DUPLEX)
234 mii->mii_media_active |=
235 IFM_FDX | mii_phy_flowstatus(sc);
237 mii->mii_media_active |= IFM_HDX;
239 mii->mii_media_active = ife->ifm_media;
243 lxtphy_reset(struct mii_softc *sc)
247 PHY_WRITE(sc, MII_LXTPHY_IER,
248 PHY_READ(sc, MII_LXTPHY_IER) & ~IER_INTEN);
252 lxtphy_set_tp(struct mii_softc *sc)
256 cfg = PHY_READ(sc, MII_LXTPHY_CONFIG);
257 cfg &= ~CONFIG_100BASEFX;
258 PHY_WRITE(sc, MII_LXTPHY_CONFIG, cfg);
262 lxtphy_set_fx(struct mii_softc *sc)
266 cfg = PHY_READ(sc, MII_LXTPHY_CONFIG);
267 cfg |= CONFIG_100BASEFX;
268 PHY_WRITE(sc, MII_LXTPHY_CONFIG, cfg);